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1
Demek, Jaromír. „The 80th Birthday Anniversary of Professor Jan Krejčí“. Geografie 92, Nr. 3 (1987): 161–67. http://dx.doi.org/10.37040/geografie1987092030161.
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The outstanding Czech geographer and geomorphologist Jan Krejčí celebrated his 80th birthday anniversary on May 20, 1987. From 1931 till 1972 (with the exception of the War years) he was professor at the University of Brno. His most important scientific works are devoted to geomorphology, but he also published studies in hydrology, climatology, regional and historical geography. This article deals with the evaluation of his geomorphological studies on the background of the development of Czech as well as world geomorphology. Professor Krejčí has contributed substantially to the development of geomorphology in the field of equilibrium of geomorphic processes, slope development and structural geomorphology.
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Goudie, A. S. „Book Review: Geophysical applications in geomorphology. Zeitschrift für Geomorphologie“. Progress in Physical Geography: Earth and Environment 29, Nr. 1 (März 2005): 132. http://dx.doi.org/10.1177/030913330502900115.
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Mostafaei, Shahriar, und Seid Rahim Moshiri. „Human Culture and how it can be affected by Geomorphology“. Journal of Research in Science, Engineering and Technology 3, Nr. 02 (13.09.2019): 148–52. http://dx.doi.org/10.24200/jrset.vol3iss02pp148-152.
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To date, a majority of geographers have attempted to define the manifestations for convergence between natural phenomena and human's social and behavioral activities. With regard to the results of previous studies in this context, this study seeks to examine and analyze the extent to which geomorphology and its dependant forms affect human culture. In this regard, the culture which evolves under influence of geomorphologic capabilities within the regions has been considered as an organism with various organs. As known, the culture can be influenced of various components such as religion, politics, economy and so forth. Yet, this study seeks to define how cultures can be affected by geomorphologic visions within regions; this can be rooted in ecological thinking or ethology. In doing so, to define and approve our idea in this study, views and theories of geographers have been used as the reference model, so that analysis of them has paved the way to theorize human culture and how it is affected by geomorphology. In addition, an area as research location in Paveh County, Province has been considered for data collection through field study, through which suitable outcomes have been obtained.
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Chichagov, V. P. „Andrey Aleksandrovich Grigoryev (1883–1968) — prominent geomorphologist and organizer of geomorphology in the USSR in 1920–1930s“. Geomorphology RAS, Nr. 3 (11.09.2019): 102–12. http://dx.doi.org/10.31857/s0435-428120193102-112.
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Academician A. A. Grigoriev was the acknowledged creator of the theory of physical-geographical process, of the role of the ratio of heat and moisture in the formation of vegetation zones of the Earth, many theoretical issues of physical geography, etc. At the beginning of his scientific activity, A. A. Grigoriev was a talented geomorphologist. His scientific interests were unusually broad, he developed the theory and practice of physical geography, regional geography, paleogeography, economic geography, climatology and geomorphology, history of science. He was a talented geomorphologist and prominent organizer of geomorphological science in our country in the first half of the 20th century.
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Dixon, Richard W., Shayne R. O’Brien und Joshua B. Hodge. „The oceanography of Cuchlaine A.M. King“. Progress in Physical Geography: Earth and Environment 45, Nr. 3 (07.04.2021): 460–63. http://dx.doi.org/10.1177/03091333211005287.
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C.A.M. King, the noted British coastal geomorphologist, authored two books in a three-year period. Beaches and Coasts in 1959 was a major contribution to coastal geomorphology, whereas Oceanography for Geographers represents King’s attempt to show the importance of the oceans to all of geography. Their approaches and pedagogy differ, but their lessons remain relevant today.
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Gavrilov, A. A. „GEOLOGICAL AND GEOMORPHOLOGICAL RESEARCH METHODOLOGY FOR METALLOGENIC PURPOSES“. Bulletin of Kamchatka Regional Association «Educational-Scientific Center». Earth Sciences, Nr. 3(51) (2021): 84–95. http://dx.doi.org/10.31431/1816-5524-2022-3-51-84-95.
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The basic questions of the methodology of geological and geomorphological study (ore geomorphology, morphostructural analysis, morphotectonics, neotectonics) of ore-bearing territories are considered. The concepts of "geomorphologic systems organization element" as the smallest particle of matter preserving the structure and properties of a mineral, as well as "objectives", "objects" and "subjects" of morphostructural and morphotectonic studies for solving problems of metallogeny have been formulated. In areas with complex geological structure, it is recommended to carry out complex of morphostructural and morphotectonic works with repeated solution of direct and inverse problems: relief and geological environment, geological environment relief. This will make it possible to establish the totality of available deterministic and chronological relations between landforms and structural elements of the lithosphere. Along with the solution of traditional problems of ore geomorphology, it is proposed to use the developed original complex of morphostructural and morphotectonic studies.
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Gavrilov, A. A. „GEOLOGICAL AND GEOMORPHOLOGICAL RESEARCH METHODOLOGY FOR METALLOGENIC PURPOSES“. Bulletin of Kamchatka Regional Association «Educational-Scientific Center». Earth Sciences, Nr. 3(51) (2021): 84–95. http://dx.doi.org/10.31431/1816-5524-2022-3-51-84-95.
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The basic questions of the methodology of geological and geomorphological study (ore geomorphology, morphostructural analysis, morphotectonics, neotectonics) of ore-bearing territories are considered. The concepts of "geomorphologic systems organization element" as the smallest particle of matter preserving the structure and properties of a mineral, as well as "objectives", "objects" and "subjects" of morphostructural and morphotectonic studies for solving problems of metallogeny have been formulated. In areas with complex geological structure, it is recommended to carry out complex of morphostructural and morphotectonic works with repeated solution of direct and inverse problems: relief and geological environment, geological environment relief. This will make it possible to establish the totality of available deterministic and chronological relations between landforms and structural elements of the lithosphere. Along with the solution of traditional problems of ore geomorphology, it is proposed to use the developed original complex of morphostructural and morphotectonic studies.
8
Corradini, C., F. Melone und V. P. Singh. „Some Remarks on the Use of GIUH in the Hydrological Practice“. Hydrology Research 26, Nr. 4-5 (01.08.1995): 297–312. http://dx.doi.org/10.2166/nh.1995.0017.
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The geomorphologic instantaneous unit hydrograph (GIUH) as a component of rainfall-runoff models directed to the determination of design hydrographs in ungaged basins is investigated. Specifically, we first performed a sensitivity analysis of the GIUH to errors in the basin lag estimated by commonly used empirical relationships involving basin area. Then, the details required in representing the geomorphologic features in the GIUH estimate for fixed basin lag, L, were examined. Real basins located in Central Italy were selected; they range in area from 12 km2 to 4,147 km2 and are characterized by a significant variability in the drainage channel density, D. It was found that given L a minimum detail was necessary in representing basin geomorphology. Further, the estimate of L through basin area led to large errors in computing design hydrographs for a few small basins. An explicit consideration of D is suggested in order to eliminate this shortcoming.
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Tomeniuk, O. „Yuriy Polians’kyi as a researcher of terraces of Dniester river“. Visnyk of the Lviv University. Series Geography, Nr. 38 (15.12.2010): 340–56. http://dx.doi.org/10.30970/vgg.2010.38.2287.
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Yuriy Polians’kyi’s contribution to the investigation of geologic and geomorphologic structure of Dniester River on the basis of detailed analysis of his scientific publications was characterized. Works of the scientists who were the predecessors and the successors of Yuriy Polians’kyi in the field of study of terraces of Upper and Middle currents of Dniester River also was analyzed. The principal achievements of Yuriy Polians’kyi that have got the further development in present geomorphology were corroborated at the article. Key words: floodplain terrace, alluvium, Pleistocene, relative elevation, geological and geomorphological researches, Dniester, Podillya.
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Sahariah, Dhrubajyoti, Kuleswar Singha, Diganta Kr Bora, Sumit Kundu, Tapashi Das, Suchibrata Sen, Karabi Das et al. „Majuli at the Crossroads: A Study of Cultural Geomorphology“. Space and Culture, India 1, Nr. 2 (28.11.2013): 12. http://dx.doi.org/10.20896/saci.v1i2.26.
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Although well established elsewhere, cultural geomorphology has not yet been well-grounded in Northeast India where a perceived dearth of studies in this sub-branch of geography exists. The Brahmaputra valley, which has a long physical and cultural history, is a unique laboratory, which offers opportunities to study anthropo-geomorphologic, achaeo-geomorphologic and cultural landscapes. The Majuli river island, ostensibly the largest island in the world, houses traditional art crafts and dances, despite being continually under the siege of a plethora of physical obstacles such as flooding, bank erosion, etc. The present study aims at studying how the physical processes that constantly reshape the map of the island exert their influence on the socio-economic and cultural milieu of the region. The paper further analyses why despite all odds Majuli thrives and continues to preserve and maintain its rich natural and cultural heritage, in ways that are perhaps unparalleled in the region or even elsewhere in the globe.
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Hong, Zhong, Mingjun Su, Feng Qian, Guangmin Hu und Qingyun Han. „Global seismic horizon interpretation based on data mining — A new tool for seismic geomorphologic study“. Interpretation 8, Nr. 1 (01.02.2020): T131—T140. http://dx.doi.org/10.1190/int-2018-0210.1.
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Accurate and efficient seismic horizon interpretation is important for seismic geomorphology study. By integrating the improved density-based clustering method to generate horizon patches and a heuristic combining strategy to merge horizon patches, we have developed a novel data mining approach to automatically extract globally optimal horizons for detailed geomorphologic interpretation. First, the application of improved density-based clustering method has distinct merits in calculation speed and avoiding the phenomenon of mis-ties. We design a heuristic combining strategy to effectively combine the horizon patches. It is also able to ameliorate the problem of mis-ties that frequently occurs in horizon picking. Second, the proposed algorithm can identify abnormal unit in terms of independent horizon fragments. Furthermore, the introduced method is capable of detecting small-scale seismic geomorphologic features. The applications indicate good real-time performance of our new global interpretation algorithm in automated-tracking speed and quality. Our method can resolve the problem of mis-ties in cases of complex seismic reflection to a certain extent. Besides, not only are a series of channels separately recognized, but also small-scale meandering rivers are clearly mapped. Our algorithm is capable of adding more geologic information and realizing a better showcase of geomorphologic features.
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Meybodi, Enayatollah Emami, und Syed Khaliq Hussain. „THE KARSTIC GEOMORPHOLOGY IN THE DOLOMITE OF DRINJAL FORMATION IN CENTRAL IRAN (CASE STUDY SADDAT SIRIZE IRON MINE)“. Earth Science Malaysia 6, Nr. 1 (2022): 11–14. http://dx.doi.org/10.26480/esmy.01.2022.11.14.
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In the present work, we deal with the geomorphological features formed by karstification in the dolomite of the Drinjal Formation. The study area is located on the southeast wall of the Saddat Sirize iron mine, which is mostly covered by the sedimentary sequence of the Drinjal Formation. The geomorphological features have a direct effect on the slope stability, extraction of the orebody, etc., in a mining project. The aim of this study is to determine the effect of karst geomorphology on the mining project. For this purpose, fields methods were used to examine the dolomite of Drinjal formation. Dolomite in the study area has a variety of developed karstic geomorphological features such needle shape karrens, solution runnel karrens and cryclastic karrens, conical shape doline and Collapse dolines, Karstic cavity and Karst windows. karst geomorphology makes it highly susceptible to a variety of different geological hazards. These karstic geomorphologies can cause the instability of the Saddat Sirize iron mine wall.
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Barmin, A. N., M. M. Iolin, V. P. Chichagov, S. A. Bulanov, M. E. Kladovschikova und A. V. Koshkarev. „PLENARY SESSION OF GEOMORPHOLOGIAL COMISSION, RAS. “GEOMORPHOLOGIC SYSTEMS: THEORETICAL AND APPLIED INVESTIGATIONS“. Geomorphology RAS, Nr. 2 (22.07.2015): 103. http://dx.doi.org/10.15356/0435-4281-2012-2-103-105.
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Tomeniuk, Olena. „Scientific contacts of Professor Yuri Polianski (based on epistolary heritage)“. Visnyk of the Lviv University. Series Geography, Nr. 41 (17.09.2013): 336–57. http://dx.doi.org/10.30970/vgg.2013.41.2007.
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Scientific cooperation of Ukrainian palaeogeographer, geomorphologist and archaeologist Yu. Polianski with scientists from related fields of natural sciences and humanities under materials of private correspondence was investigated. On the basis of the identified prints of publications with dedicatory signatures of Yu. Polianski for his colleagues and vice versa (for him) the range of scientific contacts of this researcher was widened. It is an addition to the understanding of the role and place of the scientist and the range of his interests in scientific community of that time. Key words: scientific contacts, scientist, palaeogeography, geomorphology, geology, archaeology, Ukraine.
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Pouye, Ibrahima, Dieudonné Pessièzoum Adjoussi, Jacques André Ndione und Amadou Sall. „Topography, Slope and Geomorphology’s Influences on Shoreline Dynamics along Dakar’s Southern Coast, Senegal“. Coasts 3, Nr. 1 (16.03.2023): 93–112. http://dx.doi.org/10.3390/coasts3010006.
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Among the impacts of climate change in West Africa, coastal erosion is the most threatening disaster apart from floods and the increase in temperatures. The southern coast of the Dakar region, as part of the most threatened coastal zones in West Africa, records the most current coastal damages in Dakar due to its coastline dynamics and low-lying area. This paper investigates the influences of the topography and slope of the beach on shoreline dynamics using remote sensing, cartographic tools and statistical methods such as linear regression. It also states the important role of geomorphologic structures in shoreline dynamics. It was conducted in three littoral cells (Mbao, Bargny and Toubab Dialaw) along the southern coast of Dakar. It helps to understand better the role that topography, slope and geomorphology play in coastal dynamics. The Modified Normalized Difference Water Index (MNDWI) was employed to delineate the coastlines before computing the dynamic rate of the coastline using Digital Shoreline Analysis System (DSAS) software. After that, the topography and slope were determined using a digital elevation model (DEM). Then, the correlation between the coastline dynamic, topography and slope was analyzed using the coefficient of correlation and linear regression model. In the Mbao and Bargny littoral cells where the geomorphology is mostly dominated by soils little or not evolved in situ, there is a significant relationship between the coast line dynamic, topography and slope with a coefficient of correlation of about 0.63 and 0.87, respectively. The relationship is not significant in Toubab Dialaw, where the topography and slope are high, and the geomorphology is mainly characterized by a category of sandstone, with a coefficient of 0.15. We conclude that topography, slope and geomorphology play an important role in the shoreline dynamics in the study area.
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Kathwas, Amar Kumar, und Nilanchal Patel. „Geomorphic Control on Soil Erosion – a Case Study in the Subarnarekha Basin, India“. Polish Journal of Soil Science 54, Nr. 1 (29.06.2021): 1. http://dx.doi.org/10.17951/pjss.2021.54.1.1-24.
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<p>Geomorphology depicts the qualitative and quantitative characteristics of both terrain and landscape features combined with the processes responsible for its evolution. Soil erosion by water involves processes, which removes soil particles and organic matter from the upper sheet of the soil surface, and then transports the eroded material to distant location under the action of water. Very few studies have been conducted on the nature and dynamics of soil erosion in the different geomorphologic features. In the present investigation, an attempt has been made to assess the control of geomorphologic features on the soil loss. Universal Soil Loss Equation (USLE) was used to determine soil loss from the various geomorphological landforms. Principal component analysis (PCA) was implemented on the USLE parameters to determine the degree of association between the individual principal components and the USLE-derived soil loss. Results obtained from the investigation signify the influence of the various landforms on soil erosion. PC5 is found to be significantly correlated with the USLE-derived soil loss. The results ascertained significant association between the soil loss and geomorphological landforms, and therefore, suitable strategies can be implemented to alleviate soil loss in the individual landforms.</p>
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Xiao, Xianbiao, Yunhai Li, Junjian Tang, Fusheng Luo, Fangfang Shu, Liang Wang, Jia He et al. „Coupling Relationship of Geomorphic Evolution and Marine Hydrodynamics in the Stage-Specific Development of Urban Bays: A Modelling Case Study in Quanzhou Bay (1954–2017), China“. Journal of Marine Science and Engineering 10, Nr. 11 (07.11.2022): 1677. http://dx.doi.org/10.3390/jmse10111677.
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With the development of social economy and human activities, the geomorphology and hydrodynamic conditions of coasts have been dramatically changed, causing serious environmental pollution and resource depletion. Taking Quanzhou Bay as an example, this study combined geomorphologic change with a hydrodynamic model to simulate the change in tidal currents in different periods. The results show a change in the coastline was the main cause of hydrodynamic change during the industrialization reform. During the past 70 years, the tidal prism decreased year by year, and the average velocity of the tidal current in the channel decreased by 33.7% and 30.8% at flood and ebb tide, respectively. In the early stages of industrialization, reclamation land was used in a single way. The tidal prism decreased by 22.2% and 29.8% in the spring and neap tide, respectively. In the middle and later stages, the tidal current velocity increased, and reclamation land was used in a variety of ways. In modern society, the reclamation land-use type was unitary. Based on this research, we show the influence of human activities on the evolution of the bay’s geomorphology and provide suggestions for the management of the bay.
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Arifian, Naf’an, Kemal Rahman Denis und Sri Kandi Putri. „COMPARISON OF ASTER GDEM IMAGES AND SRTM IMAGES FOR RIVER WATERSHED AND GEOMORPHOLOGY STUDY“. International Remote Sensing Applied Journal 3, Nr. 2 (02.03.2023): 68–73. http://dx.doi.org/10.24036/irsaj.v3i2.38.
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This study uses two DEM images, namely ASTER GDEM and DEM SRTM to map the distribution of rivers and geomorphology located in The District of Pesisir Selatan. In this study a comparison of the two images was carried out with the same level of resolution of 30 meters to see the accuracy of the images used in the study of watersheds and geomorphology.
The method used in this research is processing image data then identifying the river for each image used. Further carrying out a confusion matrix which is used to check or improve data from a quantitative approach.
The results of the study in terms of comparison of ASTER and SRTM images for watershed identification show that SRTM imagery is more accurate in identifying watersheds compared to ASTER imagery. After taking samples with the number of sample points taken, namely 36 samples on each, and then testing for spatial accuracy, the results show that the SRTM imagery had an accuracy rate of 88% where out of 36 sample points only 5 were wrong or not on the river. Whereas in the ASTER image of 36 sample points, there were only 6 which were right on the river, show that the level of image accuracy is only 14% for river identification. The study also shows that after the research process and accuracy test, for geomorphologic identification on the two DEM images, namely DEM SRTM and ASTER GDEM, it found that both images have the same level of accuracy, therefore both images are equally good at identifying geomorphology.
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Rysin, I. I., D. A. Timofeyev und V. P. Chichagov. „THE PROBLEMS OF FLUVIAL GEOMORPHOLOGY AT THE XXIX PLENARY SESSION OF GEOMORPHOLOGIC COMMISSION RAS“. Geomorphology RAS, Nr. 2 (06.08.2015): 109. http://dx.doi.org/10.15356/0435-4281-2007-2-109-110.
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Lilli, Maria A., Dionissis Efstathiou, Daniel Moraetis, Jonathan Schuite, Sofia D. Nerantzaki und Nikolaos P. Nikolaidis. „A Multi-Disciplinary Approach to Understand Hydrologic and Geochemical Processes at Koiliaris Critical Zone Observatory“. Water 12, Nr. 9 (03.09.2020): 2474. http://dx.doi.org/10.3390/w12092474.
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Koiliaris CZO is a European Critical Zone Observatory (CZO) typical of the Mediterranean karstic geomorphology, which represents watersheds affected by humans over the centuries. This study aims to provide information that underpins the hydrologic and geochemical processes functioning at Koiliaris CZO. Linking geomorphologic and tectonic analysis improved the delineation of a karstic area which extends outside of the Koiliaris watershed and identified how structural elements influence the regional hydrology. The fluctuation in the river flow represents processes occurring in the karst and the periodic signal is related to Earth tide stressing of the karstic reservoirs. The conceptualization of a two-reservoir, well-mixed karstic system is confirmed by both the geomorphologic and tidal analysis. The hydrologic response is fast and it is manifested especially during extreme events where 70% of the precipitation becomes surface runoff, creating major flood events. The different sampling sites in the Koiliaris CZO were geochemically clustered and the quantification of the weathering fluxes showed that 25 mm/1000 years and 39 mm/1000 years of carbonate were removed by chemical weathering for the Keramianos ephemeral river and the springs, respectively. These studies illustrate the importance of critical zone science and transdisciplinary studies on water and soil management.
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(Oprea) Constantin, Dana Maria, Emil Cîrciumaru und Victor Viorel Vătămanu. „The Land’s Susceptibility, Due to Atmospheric Precipitations, Within the Catchment Area of Câlnău“. Present Environment and Sustainable Development 8, Nr. 1 (01.05.2014): 45–57. http://dx.doi.org/10.2478/pesd-2014-0004.
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Abstract The climatic factors, generally, and the precipitation amounts recorded, especially, constitute some of the factors which condition the development and intensity of actual geomorphologic processes. One of the most employed climatic parameters for determining the land’s susceptibility to atmospheric precipitations, with real and concrete applications into the dynamic geomorphology, is the Angot factor. The precipitations represent a crucial meteorological element in initiating, sustaining and reactivating some geomorphologic processes, acting as a modelling agent for every type of landscape. This influence can be highlighted by quantifying the values of some characteristic variables (length, frequency and intensity), as well as temporally confining individual and successive sequences, which present a certain degree of susceptibility. The general objective of this research, through the analysis of precipitations and the Angot parameter, is to identify, on one hand, the months, seasons or years with a very high or very low susceptibility to the occurrence of bank erosion phenomena, and on the other, to examine the value variations of this parameter across the year. The purpose is to recognize a cumulative of pluviometric conditions which could contribute to inducing, in general, the modelling processes. The study of land’s susceptibility to atmospheric precipitations was conducted within the morpho-hydrographic drainage system of Câlnău.
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Zeng, Hongliu. „What is seismic sedimentology? A tutorial“. Interpretation 6, Nr. 2 (01.05.2018): SD1—SD12. http://dx.doi.org/10.1190/int-2017-0145.1.
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I have developed an alternative narrative of seismic sedimentology from a geologist’s perspective. Seismic sedimentology is a high-resolution supplement for traditional, low-resolution seismic stratigraphy, reflecting the fact that seismic responds to sedimentary bodies differently at low and high resolution. Seismic stratigraphy is a model-driven method that follows the principles of field geology and the well-based study of subsurface sedimentology, and it assumes that seismic reflections can duplicate geologic correlations. Seismic sedimentology is a more data-driven approach based on the understanding of how a seismic signal responds to thin-bedded depositional elements in the context of stratigraphy, which is a function of thickness, lithology-impedance model, wavelet phase, and frequency. Seismic sedimentology is focused on mapping seismic litho-geomorphologic facies, by joint investigation of seismic lithology and seismic geomorphology. In such an investigation, seismic lithology and seismic geomorphology are complementary, making more complete use of seismic information, and they can be more powerful in determining the sedimentary environment and reservoir quality. To reduce the knowledge gap between sedimentary geologists and seismic geophysicists, sedimentologists have to learn and master geophysical principles and techniques. To begin with, a simplified four-step workflow is recommended, which can be summarized as select-adjust-decompose-blend.
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Segoni, Samuele. „Who Wants to Be a Geomorphologist? Gamification in a BSc Teaching Course“. Geosciences 13, Nr. 11 (25.10.2023): 322. http://dx.doi.org/10.3390/geosciences13110322.
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Despite the importance of Earth sciences in addressing the global challenges that humanity is presently facing, attention toward related disciplines has been witnessed to be globally declining at various levels, including education and university teaching. To increase students’ engagement and explore alternative teaching activities, a didactical experiment was carried out at the University of Florence (Italy); the teaching course, “basic elements of geomorphology”, was reorganized to include relevant elements of gamification. Parallel to the frontal lessons, a competition based on a recurring quiz game was conducted. This activity was called “Who wants to be a Geomorphologist?”, clearly paraphrasing a notorious TV show. During every lesson, a moment was included where the students used their mobile devices to access a series of quizzes that were previously prepared by the teacher to test the reasoning skills of the students and their abilities to make connections between distinct topics. A commercial educational app was used to organize the activity, run the quiz sessions, assign points, and update the leaderboard in real time. A quantitative evaluation procedure assessed the positive impacts in terms of supporting the learning process, improving the engagement in the teaching course, and fostering the liking for geomorphology.
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Albadran, B. N., S. T. Al-Mulla und M. M. Abd-Alqader. „Physiographic study of Shatt Al-Arab Delta South of Iraq by Application of Remote Sensing Technique“. Mesopotamian Journal of Marine Sciences 31, Nr. 2 (07.04.2022): 169–80. http://dx.doi.org/10.58629/mjms.v31i2.102.
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The Shatt Al-Arab River is formed by the confluence of the Tigris and Euphrates Rivers near Qurna 75 km, Basrah Governorate, approximately 75 km north of the city of Basrah, southern of Iraq. Satellite images of Landsat 7 ETM+ for years 2000, 2002 and 2006 were processed with ERDAS Imagine 8.4 and ArcGIS 9.3. They were used to interpret the geomorphology of Shatt Al-Arab delta. Shuttle Topographic Radar Mission. Geomorphologic structures, suspended load distribution and lateral movement of the main channel are interpreted and three lobes are distinguished at the formative delta front, confirming lateral channel movement as the prime factor in the delta’s formation. A westward deviation in the main channel of the Shatt Al-Arab River could divert into Abdullah Creek within a few years.
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Brierley, Gary. „Uma Perspectiva Pessoal sobre Práticas Metodológicas em Geomorfologia Fluvial Aplicada“. Espaço Aberto 6, Nr. 1 (02.06.2016): 9–16. http://dx.doi.org/10.36403/espacoaberto.2016.5235.
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What is useful geomorphology? How do we do it (what methods do we use)? How can we help ensure that it is used, and it is used effectively? Here I share a few thoughts from the perspective of an applied fluvial geomorphologist. This is very much a personal, reflective contribution. Now at the ‘senior' end of professorial status (more than 10 years a full professor), I think it is interesting to reflect upon how methodological practices that I have used have changed during my career. In a sense, this is very much a record of my own journey, outlining decisions made along the way, and providing an account of some of the outcomes.
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Tomeniuk, O. „Influence of scientific ideas of Yuriy Polians’kyi on the development of geomorphology and paleogeography in Ukraine (to 120-years anniversary of the day of birth of Yu. Polians’kyi)“. Visnyk of the Lviv University. Series Geography 2, Nr. 40 (12.12.2012): 178–96. http://dx.doi.org/10.30970/vgg.2012.40.2105.
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The article is dedicated to description of major scientific achievements of outstanding Ukrainian paleogeographer, geomorphologist and geologist Prof. Yuriy Polians’kyi. The influence of his scientific ideas on the development of modern geomorphology and paleogeography in Ukraine is analyzed. Special attention is paid to the study of loess deposits and development of terrace horizons on the territory of Dniester region. Results of paleogeographic, geomorphological, archaeological, tectonic exploration of the region carried out by modern researchers are presented too. For the most part of these results are the development of scientific ideas of Yuriy Polians’kyi. Key words: floodplain terrace, alluvium, loess, fossil soils, glaciations, geological and geomorphological researches, Pleistocene, Paleolithic, Dnister River, Volhyn-Podillia region.
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Gärtner, Holger, Jan Esper und Kerstin Treydte. „Geomorphologie und Jahrringe – Feldmethoden in der Dendrogeomorphologie | Geomorphology and tree rings – field methods in dendrogeomorphology“. Schweizerische Zeitschrift fur Forstwesen 155, Nr. 6 (01.06.2004): 198–207. http://dx.doi.org/10.3188/szf.2004.0198.
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In terms of the spatiotemporal reconstruction of geomorphic processes the application of tree-ring analysis has the highest level of temporal resolution in geomorphology. Dating and the resulting reconstructions can be assigned to exact calendar years, sometimes even to specific seasons. To guarantee this,one has to take into account that there are great differences between methods in the field and other tree-ring related fields of research. Following site selection a detailed relief analysis and process must be carried out in order to determine and select those trees obviously disturbed by these processes. The method of sampling is of the utmost importance. Selection of the samples must be based on the estimated kind of disturbance and therefore corresponds to the specific disturbance of a given species and not to the site being investigated. Furthermore,in order to be able to accurately date the disturbances it is absolutely essential to produce a local reference chronology.
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Atmodjo, Warsito. „Geomorfologi Pesisir Pantai Benteng Portugis, Kecamatan Donorojo, Kabupaten Jepara“. Jurnal Kelautan Tropis 19, Nr. 2 (05.12.2016): 150. http://dx.doi.org/10.14710/jkt.v19i2.842.
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The dynamics of coastal geomorphology depending on the rock making up the coastal and oceanographic processes that work. Coastal geomorphology dynamic process influenced by oceanographic processes and can result in the accretion process and coastal erosion. This study aims to determine the dynamics of the process of coastal geomorphology and oceanographic factors that influence the process .. This study uses the case with the analysis of dynamics of geomorphological and oceanographic processes that influence in the region penlitian. The research data in the form of tides, currents and sediments in coastal areas. The results of the study be a type of tidal Daily Single with water level Z0 = 55.90; (MSL) 69.14 cm; (HHWL) = 135.48 cm; (LLWL) = 0.78 cm. Waves as high as 0.62 meters and wave period 4.1 seconds. The waves come from the Northeast will burst burst as high as 0.81 meters at a depth of 0.78 meters. Breaking waves at an angle of 19.22 degrees to the shoreline, will result in flow velocity along the coast is 0.98 m / sec.Coastal geomorphology consists of rugged coastal hills of volcanic material composed of tuffaceous sand and clastic limestone and non clastics limestone and limestones; type of geomorphologys was coastal flat composed of silty sand; coastal river estuary composed of silty sand; coastal erosion occurs berm erosion. Geomorphology dynamic process influenced by longshore currents that cause abrasion dominant in the study area. Keywords: coastal geomorphology; dinamikai coast; Portuguese fort Jepara Dinamika geomorfologipesisirpantai tergantungpada batuan penyusun pesisir pantai dan proses oseanografi yang bekerja. Proses dinamika geomorfologi pesisir pantai di pengaruhi oleh proses oseanografi dan dapat berakibat terjadinya proses akresi dan erosi pesisir. Penelitianinibertujuan mengetahui dinamika proses geomorfologi pesisir pantai dan proses faktor oseanografi yang berpengaruh.. Penelitianinimenggunakan metode kasusdengananalisis dinamika proses geomorfologi dan oceanografi yang berpengaruh di daerah penlitian. Data penelitian berupa pasang surut, arus dan sedimen di wilayah pesisir pantai.Hasilpenelitianberupatipe pasang surut Harian Tunggal denganelevasi muka air Z0 = 55,90; (MSL) 69,14 cm; (HHWL) = 135,48 cm; (LLWL) = 0,78 cm.Gelombang setinggi 0,62 meter dan periode gelombang 4,1 detik. Gelombang datang dari arah Timur Laut akan pecah pecah setinggi 0,81 meter pada kedalaman sebesar 0,78 meter. Gelombang pecah dengan sudut datang 19,22 derajat terhadap garis pantai, akan mengakibatkan kecepatan arus sepanjang pantai 0.98 m/detik. Geomorfologi pesisir terdiri dari pesisir pantai bukit terjal tersusun material volkanik pasir tufaan dan batugamping klastik dan batugamping non klastik ;pesisir landai/datartersusun pasir lanauan; pesisir pantai muara sungaitersusun oleh pasir lempungan; pesisir pantai erosi terjadi erosi berm. Proses dinamika geomorfologi dipenaruhi oleh arus longshore yang menyebabkan adanya dominan abrasi di daerah penelitian. Kata kunci : geomorfologi pesisir; dinamikai pesisir; benteng portugis Jepara.
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Ramiaramanana, H., E. Guilbert und B. Moulin. „A COGNITIVE APPROACH FOR LANDSYSTEM IDENTIFICATION USING A GRAPH DATABASE – TOWARDS THE IDENTIFICATION OF LANDFORMS IN CONTEXT“. ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences V-4-2022 (18.05.2022): 17–24. http://dx.doi.org/10.5194/isprs-annals-v-4-2022-17-2022.
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Abstract. A landform is any physical feature of the earth's surface having a characteristic, recognizable shape. Most landform identification methods rely on OBIA (Object-Based Image Analysis) techniques to segment the terrain data and classify segments into objects that are assumed to compose the landform. However, geomorphologists can visually recognize any landform, considering the characteristics of the surrounding environment that plays the role of context. This notion of context was not considered in previous landform identification methods. We propose to model it using the notion of landsystem. Landsystems are geomorphologic elements that result from a set of natural geomorphological processes. They are also easily recognized by geomorphologists. In this paper, we present a new knowledge-based method to automatically identify landsystems as the context for landform identification. We first present a conceptual model as a core ontology of geomorphologic elements including landsystems and landforms, capturing relevant geomorphologists’ knowledge. Then, we present how this model is extended to create a domain ontology for a chosen domain in geomorphology. We illustrate such an extension for the case of mountainous glacial valleys. We used the graph database engine Neo4J to implement the domain ontology and to develop a knowledge-based system (a framework) to automatically identify landsystems from spatial datasets. We present the architecture of our framework and discuss how it is used to support: 1) the knowledge acquisition tasks; 2) the spatial data preparation task; 3) the processing of the user’s request seeking landsystems in a chosen study area.
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Lalubie, Guillaume. „Volcanic hydro-geomorphology of the Montagne Pelée and the rediscovery of an ancestral problematic (Carib, Kalinago) in the Lesser Antilles“. Bulletin de la Société Géologique de France 184, Nr. 1-2 (01.01.2013): 129–35. http://dx.doi.org/10.2113/gssgfbull.184.1-2.129.
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Abstract The hydrographic network of volcanoes has an impact as much on the constructive as on the destructive processes. This study is potentially rich in information. Volcanic hydro-geomorphology studies volcanic hydrographical system from a naturalist and multiscale approach. On volcanoes, the analysis of processes that are produced in volcanic streams, during eruptions or rest periods, shows that the hydro-volcano-geomorphologic (HVG) hazards are numerous and cannot be reduced to simple flooding. All of the different HVG destructive phenomena act to evacuate the excess of volcanic material. The morphological impact is more definite than the ‘standard’ water floods. As a result, the threat of volcanic streams is significant because it is frequent, spontaneous and cannot always be predicted. Which bring us to the following question: are volcanic streams more dangerous than eruptions? If the HVG risks have been neglected by the society in favor of the crater phenomena, it has not always been so in the Lesser Antilles. The vocabulary of the native Caribbean (Kalinago) that has reached us through the Carib-French dictionary of Father Breton (1665) is rich in information. It allows us to identify several gradients in the hydro-geomorphologic factors: meteorological crisis, stability of land and torrential phenomena intensity. The Kalinago’s vocabulary contains other words from different domains in geosciences, but none which refer to volcanic eruptions. This amerindian society probably perceived volcanoes on another time scale than ours: a temporal scale adapted to the impact of hazards, their danger.
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Rodríguez Lado, L., D. A. Polya und A. Hegan. „A logistic regression method for mapping the As hazard risk in shallow, reducing groundwaters in Cambodia“. Mineralogical Magazine 72, Nr. 1 (Februar 2008): 437–40. http://dx.doi.org/10.1180/minmag.2008.072.1.437.
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AbstractWe combined statistical analyses and GIS capabilities within the statistical environment R to create a semi-automated method for the assessment of As hazard risk in shallow groundwater in Cambodia. Arsenic concentration data for groundwaters of between 16 and 100 m depth were obtained from 1437 geo-referenced wells. We created a binary logistic regression model with these As measurements as the dependent variable and a number of raster maps (DEM-parameters, remote sensing images and geomorphology) as explanatory variables, and considering an As threshold of 10 ppb. This allowed us to make an As hazard map for groundwaters between 16—100 m depth: this can be used to help to identify populations vulnerable to exposure. The logistic regression analysis indicates a good correlation between topographic and geomorphologic environmental variables and the As hazard risk in groundwater. Ease of implementation, and the ability to update, along with objectivity and reproducibility are the main advantages related to this method of analysis.
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Csatho, Bea M., Cornelis J. Van Der Veen und Catherine M. Tremper. „Trimline Mapping from Multispectral Landsat ETM+ Imagery“. Géographie physique et Quaternaire 59, Nr. 1 (30.10.2006): 49–62. http://dx.doi.org/10.7202/013736ar.
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AbstractMultispectral Landsat ETM+ imagery is used to study the ice-marginal region in the vicinity of Jakobshavn Isfjord, west Greenland. In particular, the trimline indicating margin retreat since the maximum stand attained during the Little Ice Age maximum is reconstructed, and compared with earlier maps based on aerial photogrammetry and ground surveys. Applying supervised classification, fourteen different surface types were identified, ranging from snow and ice, debris-covered ice and water with differing turbidities, to different types of vegetative landcover. After similar classes were merged into five, distinctively different classes, a digitized geomorphologic map was used to assess the accuracy of the classification. The positional accuracy of the trimline was checked by using results from a GPS survey along northern slope of the Jakobshavn fjord. By merging three spectral bands with the panchromatic band, a pan-sharpened image with a spatial resolution of 15 m is obtained that clearly shows morphological features on the ice surface, as well as increased resolution of glacial geomorphology.
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Messias, Maria Cristina Teixeira Braga, Mariangela Garcia Praça Leite, João Augusto Alves Meira-Neto und Alessandra Rodrigues Kozovits. „Life-form spectra of quartzite and itabirite rocky outcrop sites, Minas Gerais, Brazil“. Biota Neotropica 11, Nr. 2 (Juni 2011): 255–68. http://dx.doi.org/10.1590/s1676-06032011000200026.
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Vascular species and their respective life-forms and coverage were recorded in a Brazilian quartzite and itabirite rocky outcrop site at Serra de Ouro Preto, producing the floristic, frequency and vegetational spectra. Three habitats in both lithologies were defined by geomorphology as: 1) Sloped areas near the mountain summit, with grasslands; 2) Plateaus in the middle of the slope, with grasslands; and 3) Lower and/or concave parts of the slopes, with woody savannas. The life-forms followed Raunkiaer's System. We aimed to answer the following questions: Do quartzite and itabirite rocky outcrops have different biological spectra? Are the biological spectra different in the geomorphologic habitats? Do the floristic, vegetational and frequency spectra differ from one another? What spectrum stacks up to a rocky outcrop physiognomy description? The results portrayed that: a) the most represented life-forms were the phanerophytes and hemicryptophytes; b) the floristic and frequency spectra did not differ from each other, but both differed from the vegetational one; c) all the floristic spectra were similar, but there were significant differences in the frequency and vegetational spectra among the lithology and geomorphology habitats; d) higher phanerophyte and lesser hemicryptophyte coverages were found in the itabirite areas and also in the lower or concave parts of the slopes of both lithologies; and e) the vegetational spectrum was more efficient for the studied rocky outcrop comparison. Relationships between the environmental aspects and life-form spectra are discussed. This study will help advance the development of restoration projects for these areas by adding knowledge of their flora composition, structure and function.
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Chen, Shuai, Jun Zhong, Lishan Ran, Yuanbi Yi, Wanfa Wang, Zelong Yan, Si-liang Li und Khan M. G. Mostofa. „Geomorphologic controls and anthropogenic impacts on dissolved organic carbon from mountainous rivers: insights from optical properties and carbon isotopes“. Biogeosciences 20, Nr. 24 (15.12.2023): 4949–67. http://dx.doi.org/10.5194/bg-20-4949-2023.
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Abstract. Mountainous rivers are critical in transporting dissolved organic carbon (DOC) from terrestrial environments to downstream ecosystems. However, how geomorphologic factors and anthropogenic impacts control the composition and export of DOC in mountainous rivers remains largely unclear. Here, we explore DOC dynamics in three subtropical mountainous catchments (i.e., the Yinjiang, Shiqian, and Yuqing catchments) in southwest China, which are heavily influenced by anthropogenic activities. Water chemistry, stable and radioactive carbon isotopes of DOC (δ13CDOC and Δ14CDOC), and optical properties (UV absorbance and fluorescence spectra) were employed to assess the biogeochemical processes and controlling factors on riverine DOC. The radiocarbon ages of DOC in the Yinjiang River varied widely from 928 years BP to the present. Stepwise multiple regression analyses and partial least square path models revealed that geomorphology and anthropogenic activities were the major drivers controlling DOC concentrations and DOM characteristics. Catchments with higher catchment slope gradients were characterized by lower DOC concentrations, enriched δ13CDOC and Δ14CDOC, and more aromatic dissolved organic matter (DOM), which were opposite to catchments with gentle catchment slopes. Variabilities in DOC concentrations were also regulated by land use, with higher DOC concentrations in urban and agricultural areas. Furthermore, DOM in catchments with a higher proportion of urban and agricultural land uses was less aromatic, less recently produced, and exhibited a higher degree of humification and more autochthonous humic-like DOM. This research highlights the significance of incorporating geomorphologic controls on DOC sources and anthropogenic impacts on DOM composition into the understanding of DOC dynamics and the quality of DOM in mountainous rivers, which are globally abundant.
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Satheesh Kumar, C., P. Arul Murugan, R. R. Krishnamurthy, B. Prabhu Doss Batvari, M. V. Ramanamurthy, T. Usha und Y. Pari. „Inundation mapping – a study based on December 2004 Tsunami Hazard along Chennai coast, Southeast India“. Natural Hazards and Earth System Sciences 8, Nr. 4 (01.07.2008): 617–26. http://dx.doi.org/10.5194/nhess-8-617-2008.
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Abstract. Tsunami impact study has been undertaken along Chennai coast starting from Pulicat to Kovalam. The study area Chennai coast is mainly devoted to prepare large scale action plan maps on tsunami inundation incorporating land use details derived from satellite data along with cadastral data using a GIS tool. Under tsunami inundation mapping along Chennai coast an integrated approach was adopted to prepare thematic maps on land use/land cover and coastal geomorphology using multispectral remote sensing data. The RTK dGPS instruments are used to collect elevation contour data at 0.5 m intervals for the Chennai coast. The GIS tool has been used to incorporate the elevation data, tsunami inundation markings obtained immediately after tsunami and thematic maps derived from remote sensing data. The outcome of this study provides an important clue on variations in tsunami inundation along Chennai coast, which is mainly controlled by local geomorphologic set-up, coastal zone elevation including coastal erosion protection measures and near shore bathymetry. This study highlights the information regarding most vulnerable areas of tsunami and also provides indication to demarcate suitable sites for rehabilitation.
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Migon, Piotr. „Büdel, J. 1982: Climatic geomorphology. Princeton: Princeton University Press. (Translation of Klima-geomorphologie, Berlin-Stuttgart: Gebrüder Borntraeger, 1977.)“. Progress in Physical Geography: Earth and Environment 30, Nr. 1 (Januar 2006): 99–103. http://dx.doi.org/10.1191/0309133306pp473xx.
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Chichagov, V. P. „Geomorphology in the works of Russian soil scientists-geographers XX c. From V.V. Dokuchaev to I.P. Gerasimov“. Geomorphology RAS, Nr. 4 (08.11.2019): 102–12. http://dx.doi.org/10.31857/s0435-428120194102-112.
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Examples of relief studies by seven prominent Russian soil scientists, representatives of the Dokuchaev school, are presenterd. Geomorphological issues, ideas and concepts in the works of soil scientists of the XX century. showed their high professional interest in geomorphology. The beginning of the geomorphological research of Russian soil scientists was laid by the great Russian researcher V. V. Dokuchaev. Geomorphological views of V. V. Dokuchaev were ahead of the V. M. Davis' concept of the geographic cycle. Soil-geomorphological studies of S. S. Neustruev partially supplemented the concept of V. M. Davis. B. B. Polynov proved the necessity of attracting geomorphological methods and techniques when conducting soil studies, used geomorphological principles in the deduction of the three laws of the distribution of weathering crusts. I. P. Gerasimov created the theory of morphostructure and morphosculpture, introduced the idea of three macrocycles in the history of the formation of the Earth's landscapes. All the researchers cited in the article conducted detailed complex studies using geodesy methods. Scientists were able to identify a large array of new geomorphological data from the classification of microrelief to the adjustment of the main laws of geomorphology. The main feature of the scientific activity of Russian soil scientists-geomorphologists was the Dokuchaev school that gave rise to all them. It was from the Dokuchaev's principles and approaches that the mentioned scientists started and developed and passed to their students and followers. The well known Russian soil scientist and geomorphologist I. P. Gerasimov completed the century-long period of the geomorphological studies by soil scientists started by V. V. Dokuchaev.
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Obiegbu, Okechukwu Livinus, Andreas Laake und Peter Brabham. „An estimation of regional geologic structures from the geomorphology to characterize the Wadi systems, southeast Sinai, Egypt“. Interpretation 4, Nr. 3 (01.08.2016): T323—T336. http://dx.doi.org/10.1190/int-2015-0125.1.
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Complex regional geologic structural controls have generated a lot of interest in the engineering, oil, and gas industries within the past few years. Digital elevation models (DEMs), multispectral remote sensing images using ArcGIS software, in combination with data cube and geomorphologic characterization, provide important markers that aid in spatial information analysis for the study area. We have validated the characterization and classification of DEMs using spatial statistics by mineral spectroscopy of multispectral remote sensing data. Our characterization was initiated by a joint interpretation of DEMs and multispectral remote sensing data in association with stratigraphic and geologic information. We have combined Landsat ETM+ images from visible (VIS), near-infrared (NIR), and mid-infrared (MID IR) to create red-green-blue (RGB) images, superimposed with high-spectral-resolution 15 m panchromatic band 8. Principal component analysis (PCA) further enhanced the image results. To characterize the geomorphology and near surface, specific bands used included RGB Landsat 742 and 321 data sets, whereas false-color Landsat RGB images (742 and 432) provided spatial data in delineating areas of lineations and fault systems. The tectonic lineaments extracted from the escarpments of the DEM and magnetic data provided structures related to tectonic forces to better understand the major faults, lineations, and geomorphology. Results of this study showed a strikingly reliable interpretative result of these faults that controlled the low-lying areas. These faults and lineations are high-permeability zones that can be saturated by water during active rainfall and flash-flood periods thereby disrupting the equilibrium of various fault zones in the area and raising tectonic activities within the active fault system. Such saturation presents a major environmental hazard for the study area. Generally, the use of Landsat data combined with PCA indicates promising evidence of possible plays within the huge sedimentary deposits and raised concerns about safety and hazard issues.
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Sitzia, Tommaso, Simone Iacopino, Edoardo Alterio, Francesco Comiti, Nicola Surian, Luca Mao, Mario Aristide Lenzi, Thomas Campagnaro und Lorenzo Picco. „Revisiting Vegetation Gradient Analysis and the Intermediate Disturbance Hypothesis for the Interpretation of Riverine Geomorphic Patterns“. Land 12, Nr. 2 (31.01.2023): 378. http://dx.doi.org/10.3390/land12020378.
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Human effects on the water economy of the river systems are currently well documented at the worldwide scale, impacting a range of ecosystem services. In this perspective article, we discuss the findings of recent papers that under different intensities of human disturbance have coupled the analyses of riverine geomorphological and plant community patterns. The discussion is carried out within the historical framework of past and current methods of sampling and analysing the river geomorphology and the plant communities along cross-sectional profiles. The research has been conducted along three major gravel-bed rivers of the south-eastern Italian Alps: Brenta, Piave, and Tagliamento. The collated and summarised results here demonstrate the existence of a strong relationship between the woody species variance that can be explained by geomorphologic patterns and human disturbance intensity. The less disturbed river has an intermediate value of species variance that can be explained by geomorphology, the intermediate-disturbed river has the highest value, and the highly disturbed river has the lowest value. Then, we proposed an interpretation key and an adaptation of the intermediate disturbance hypothesis, which reads as: “in rivers, the greatest influence of geomorphic properties on vegetation occurs in the moderate or middle ranges of a human disturbance gradient”. We argue that the “influence of the geomorphic properties on vegetation” is assessed through the species constrained variance through an ordination analysis, such as that which is explained here. The most recent collection techniques based on field survey and remote sensing are making it increasingly easy and accurate to study of the trends of geomorphic and plant community variables throughout time and space. Thus, we encourage that researchers should check whether and how our observation is conserved through different groups of taxa and intensities of natural and human disturbance.
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Brunsden, Denys. „Geomorphology and man“. Zeitschrift für Geomorphologie 29, Nr. 4 (12.12.1985): 497–98. http://dx.doi.org/10.1127/zfg/29/1985/497.
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Chang, Chin-Hsin, und Kwan Tun Lee. „Analysis of geomorphologic and hydrological characteristics in watershed saturated areas using topographic-index threshold and geomorphology-based runoff model“. Hydrological Processes 22, Nr. 6 (2008): 802–12. http://dx.doi.org/10.1002/hyp.6638.
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Otto, J. C., K. Kleinod, O. König, M. Krautblatter, M. Nyenhuis, I. Roer, M. Schneider, B. Schreiner und R. Dikau. „HRSC-A data: a new high-resolution data set with multipurpose applications in physical geography“. Progress in Physical Geography: Earth and Environment 31, Nr. 2 (April 2007): 179–97. http://dx.doi.org/10.1177/0309133307076479.
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The analysis and interpretation of remote sensing data facilitates investigation of land surface complexity on large spatial scales. We introduce here a geometrically high-resolution data set provided by the airborne High Resolution Stereo Camera (HRSC-A). The sensor records digital multispectral and panchromatic stereo bands from which a very high-resolution ground elevation model can be produced. After introducing the basic principles of the HRSC technique and data, applications of HRSC data within the multidisciplinary Research Training Group 437 are presented. Applications include geomorphologic mapping, geomorphometric analysis, mapping of surficial grain-size distribution, rock glacier kinematic analysis, vegetation monitoring and three-dimensional landform visualization. A final evaluation of the HRSC data based on three years of multipurpose usage concludes this presentation. A combination of image and elevation data opens up various possibilities for visualization and three-dimensional analysis of the land surface, especially in geomorphology. Additionally, the multispectral imagery of the HRSC data has potential for land cover mapping and vegetation monitoring. We consider HRSC data a valuable source of high-resolution terrain information with high applicability in physical geography and earth system science.
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Mazumdar, Mriganka, MrinalKumar Dutta und Mrigakshi Bharadwaj. „A Geographic Information System (GIS) based approach for drainage and morphometric characterization of Beki river basin, India“. MAUSAM 74, Nr. 3 (03.07.2023): 673–84. http://dx.doi.org/10.54302/mausam.v74i3.5608.
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Geographic Information Systems and remote sensing, have proved to be efficient tools in delineation of drainage pattern and different geometric methodology of geomorphologic, watershed management even GIS has been widely used in several flood management, and environmental applications. The river Beki with an area of 19,354.35 sq.km2 originates at Himalayan glacier (Kula Kangri glacier in Bhutan) 26.18° N latitudes and 90.53° E longitudes and flows though the plains of Assam and finally to the mighty Brahmaputra at 26.48° N latitudes and 91.02° E longitudes has been selected for detailed morphometric analysis. Morphometric parameters via; Stream order, Stream length, Bifurcation ratio, Drainage density, Drainage frequency, Drainage texture, Form factor, Circularity ratio, Elongation ratio and Compactness ratio etc. were measured for prioritization and compound parameter values were calculated. This study will help the local people to utilize the resources in right manner for Sustainable Water Resource Development of the Basin area. Moreover, the study can also be referred as a benchmark for studies on temporal change in geomorphology due to climate change. Different Morphometric analysis provides the explanation of physical characteristics of the watershed which are useful for the areas of land use planning, soil conservation, terrain elevation and soil erosion.
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Caine, Nel, Richard J. Chorley, Stanley A. Schumm und David E. Sugden. „Geomorphology“. Arctic and Alpine Research 18, Nr. 3 (August 1986): 353. http://dx.doi.org/10.2307/1550894.
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Trudgill, Stephen, Richard J. Chorley, Stanley A. Schumm und David E. Sugden. „Geomorphology“. Transactions of the Institute of British Geographers 11, Nr. 3 (1986): 373. http://dx.doi.org/10.2307/621798.
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Czudek, Tadeáš. „Academician Emil Mazúr died“. Geografie 95, Nr. 3 (1990): 161–64. http://dx.doi.org/10.37040/geografie1990095030161.
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On March 27, 1990 the outstanding Slovak geomorphologist and physical geographer Prof. Dr. Emil Mazúr, DrSc., Member of the Czechoslovak and Slovak Academies of Sciences, died at the age of 65 years. For many years he was a member of the Presidium of both the Academies, Director of the Institute of Geography of the Slovak Academy of Sciences in Bratislava and President of the National Geographical Committee. He held many important scientific functions. Emil Mazúr is the author of more than 150 scientific publications. He had merit in the publication of the National Atlas of Slovakia and was interested especially in regional geomorphology as well as in landscape ecology. He was one of our foremost geographers well known for his creative achievements in the field of science. Emil Mazúr was a holder of many decorations and honours at home and abroad for the tremendous tasks that he had accomplished. We want to express our gratitude also for the deeply human understanding that he had shown for those working under him.
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Bremer, Hanna. „Soils in tropical geomorphology“. Zeitschrift für Geomorphologie 38, Nr. 3 (29.09.1994): 257–65. http://dx.doi.org/10.1127/zfg/38/1994/257.
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Czudek, Tadeáš. „Applied Geomorphology“. Geografie 95, Nr. 3 (1990): 195–200. http://dx.doi.org/10.37040/geografie1990095030195.
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The paper deals with the practical use of geomorphology. It describes, among others, the importance of geomorphology for other scientific branches and for the landscape study. The author subdivides the applied geomorphology into engineering geomorphology and ecogeomorphology.
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Camarinha, Pedro I. M., Silvio J. C. Simões, George P. Bernardes und Isabel C. B. Trannin. „Correlating Soil Porosity and Respective Geological Unit in Paraíba do Sul Valley, Brazil - A Geostatistical Methodology Proposal“. Soils and Rocks 35, Nr. 3 (01.09.2012): 209–22. http://dx.doi.org/10.28927/sr.353209.
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This manuscript aims proposing a methodology for correlating soil porosity to the respective geological units using geostatistical analysis techniques, including interpolation data by kriging. The site studied was in Lorena municipality, Paraíba do Sul Valley, southeastern Brazil. Specifically all studies were carried out within an area of 12 km2 located at Santa Edwirges farm. The database comprehended 41 soil samples taken at different geological and geomorphologic units at three different depths: surface, 50 cm and 100 cm depth. The geostatistical analyses results were correlated to a geological mapping specifically elaborated for the site. This mapping accounts for two different geological formations and a geological contact characterized by a shearing zone. The results indicate the existence of a significant relationship between the soil porosity and the respective geological units. The studies revealed that the residual soils from weathered granitic rocks tend to have higher porosities than the residual soils from weathered biotite gneiss rocks, while the soil porosity within the shearing zone is relatively un-sensitive to the respective geological formation. The spatial patterns observed were efficient to evaluate the relationship between the soil porosity, geology unit and the and geomorphology showing a good potential for correlating with others soil properties such as hydraulic conductivity, soil water retention curves and erosion potentials.
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LUZ, Camila Calazans da Silva, Cleber Aparecido de BARROS, Sandra Mara Alves da Silva NEVES und Maria Cândida Moitinho NUNES. „DIAGNOSES OF POTENTIAL EROSION AREAS AND LAND USE CONFLICTS IN THE ARAPUTANGA MUNICIPALITY, MATO GROSSO STATE (MT), BRAZIL“. GEOGRAFIA 42, Nr. 3 (08.03.2018): 71–86. http://dx.doi.org/10.5016/geografia.v42i3.13090.
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The objective of this study was to diagnose the potential degradation areas due to water erosion and the conflicts derived from land use in the Araputanga unicipality / Mato Grosso State. A geomorphologic and pedologic compartmentalization was generated from the superposition of soil and geomorphology maps; the erodibility by the association of the soils map of the erodibility information; the susceptibility to water erosion from the combination of the erodibility maps and the topographic factor. The vegetation cover and land use map were drawn from the Landsat 8 images of 2016. The current potential for water erosion was generated from the combination of maps on susceptibility to erosion with land cover/land use. For the assessment of conflicts, maps of current potential for water erosion and land use capacity were used. In Araputanga municipality, the Luvisols cover 62.93%. A high erodibility predominates in 73.09%; human activities occupy 64.98%. There is an average potential to water erosion in 86.31% and an average for land use conflict in 40.40%. The high erodibilitydue to the physical and chemical characteristics of the soil appears in gullies. It is necessary to readjust the land use in order to reduce the environmental problems and to maintain the landscape functions