Дисертації з теми "Coastal event"
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Shah-Hosseini, Majid. "Geomorphic evolution and coastal hazards along the Iranian coast of Makran." Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM3010.
Повний текст джерелаIn this thesis we have two main goals: (i) to reconstruct the Holocene coastal evolution and relative sea-level changes using strandplains around the Chabahar and Pozm bays; and (ii) to evaluate coastal hazards (tsunami and extreme storms) along the Iranian coast of Makran using high-energy deposits. Since the mid-Holocene, the shoreline rimming the bays of Chabahar and Pozm has prograded ~5 km and formed extensive strandplains. We documented relative sea-level changes along four coast-normal profiles. Internal architecture of strandplain imaged using Ground Penetrating Radar (GPR). The sedimentology and stratigraphy of the coastal sequence were studied by coring and trenching. The highest paleo-coastline is located about 5 km inland and stands approximately 15 m above present sea level. Paleo-shorelines date back between 4800 and 270 years BP at respective distances of 5 km to 670 m from the active shoreline. The spatial position of the palaeo-coastlines demonstrates a fall in local sea level of around 15 m during the last ~4800 years. Event deposits attesting to high-energy waves have been studied in low-lying coast by study of Over-washed sandy and shelly marine sediment and on the rocky shore by study of displaced boulder deposits. We applied hydrologic models to estimate the height and inundation distance of exceptional waves. Our results demonstrate that no known or probable storm is capable of detaching and transporting the boulders. Tsunami waves 4 m in height are enough to transport the boulders. We conclude the Makran coast has archived evidence of palaeo-tsunami events generated in the Makran subduction zone
Narwich, Charles Bryan. "Event Stratigraphy Based on Geochemical Anomalies within a Mixed-Sediment Backbarrier Sequence, Southern New Jersey." Master's thesis, Temple University Libraries, 2012. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/194335.
Повний текст джерелаM.S.
Detection of large-magnitude coastal events, especially in wave-dominated retrograding barrier settings, has traditionally relied upon lithological evidence, such as distinct overwash sand layers within the muddy backbarrier sequences. In tide-dominated environments, unconformities in marsh stratigraphy have been interpreted as rapid drowning or erosion events caused by large storms. In transitional mixed-energy backbarrier environments, however, clearly identifiable event horizons are rare, due to unfavorable conditions for peat formation or to a lack of overwash. To address these challenges, the present study utilized X-ray fluorescence (XRF), magnetic susceptibility (MS), and X-ray diffraction (XRD) techniques to identify anomalies within 4-to-7-m-thick sequences recovered from Sewell Point, Cape May, New Jersey. In these cores, at least five peaks were identified that exhibit up to three-to-four-fold increase in Fe (up to 6.2%) and Ti (up to 0.5%) concentrations and a substantial increase in MS values (> 200 μSI). The sand fraction at these intervals exceeds 40% and is represented by moderately well-sorted, negatively-skewed, fine-grained sand (2.7 φ). Fe, Ti, and MS are positively cross correlated due to the relatively high content of sand-sized heavy minerals such as magnetite, rutile, ilmenite and biotite, as well as phlogopite and muscovite mica. These minerals were also identified using a Rigaku Dmax/B X-ray diffraction device. Seven radiocarbon-dated in situ samples of intertidal gastropods and the few available rhizomes indicate that the Sewell Point sequence accumulated over the past 900-1,000 years, at an average sedimentation rate greater than 4.5 mm/yr, which is consistent with its proximity to a historically active tidal inlet. Lithological anomalies at Sewell Point are interpreted as the signatures of episodic large-magnitude sediment fluxes into the paleo-lagoon. The calibrated ages of organic remains (mollusks and rhizomes) constrain chronology and allow interpretation of these stratigraphic layers as event horizons with historical storms of 1594, 1743 and 1821, along with pre-historic storms in the 11th-13th centuries. This research indicates that geochemically diagnostic intervals offer an effective tool for detection of event horizons and their regional correlation in mixed-sediment backbarrier settings.
Temple University--Theses
Larson, Rebekka Amie. "High-Resolution Event Stratigraphy of mm-Scale Laminated Sediments from Coastal Salt Ponds: St. John, US Virgin Islands." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3196.
Повний текст джерелаAlexander, Shavonne A., Walter R. Brinkley, Jordan M. Cohen, Thomas M. Roberts, Paul Beery, Joseph Bubulka, Matt C. Kenfield, and Johnny M. Quilenderino. "Influence of foreign humanitarian assistance/disaster relief in a coastal nation." Thesis, Monterey, California. Naval Postgraduate School, 2011. http://hdl.handle.net/10945/7074.
Повний текст джерелаOne of the global security challenges the United States faces is disaster coupled with political instability. The U.S. Military‘s ability to rapidly respond to disasters enhances regional and global security and stability. Foreign Humanitarian Assistance and Disaster Relief (FHA/DR), increasingly a mission that relies on a significant military component, focuses on the provision of goods and services such as health care, supplies necessary for survival, and infrastructure repair, with the goal of reducing the immediate human suffering. The disaster in this project‘s scenario is catastrophic flooding that occurs in one of Africa‘s most populated and wealthiest countries that threatens the stability and development of West Africa. This project, employing a systems engineering methodology, focuses on the 60 days after the disaster and the requirements to provide this assistance in the form of goods and services. Many system-of-systems architectures were developed to investigate the effectiveness of utilizing a Seabase for the primary delivery of aid. Two simulation tools, SimKit, and STELLA, were used to model and examine these architectures with the former addressing the delivery and throughput concerns while the latter focused on the satisfaction of the population and the limitation of criminal activity. Based on the results of modeling, the team provided recommendations relative to the most effective architectures in influencing the population of this coastal area as well as accomplishing the FHA/DR mission.
Hickey, Rachel. "Evaluation of Endocrine Disrupting Chemicals in the Florida Coastal Pelagic Fish Complex Following the Deepwater Horizon Oil Spill Event." NSUWorks, 2015. http://nsuworks.nova.edu/occ_stuetd/44.
Повний текст джерелаCUTRONEO, LAURA. "Use of microseismic data to monitor significant sea wave heights in support of marine weather forecasting and coastal protection." Doctoral thesis, Università degli studi di Genova, 2022. http://hdl.handle.net/11567/1076418.
Повний текст джерелаPerkowski, Matthew Paul. "An analysis of the gypsy moth event monitor modified forest vegetation simulator and the stand damage model using empirical long-term measurement plot data from the Appalachian hardwood and the Atlantic Coastal Plain mixed pine-hardwood regions." Morgantown, W. Va. : [West Virginia University Libraries], 2008. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5856.
Повний текст джерелаTitle from document title page. Document formatted into pages; contains ix, 103 p. : ill. (some col.), col. maps. Includes abstract. Includes bibliographical references (p. 77-79).
Noyer, Mégane. "Développement d'indicateurs microbiens de multipollutions en Méditerranée : vers un outil d'évaluation de la qualité des eaux douces Particle-attached riverine bacteriome shifts in a pollutant-resistant and pathogenic community during a mediterranean extreme storm event Evolution of the particle-attached riverine archaeome compared to the bacteriome as a result of multipollution following a mediterranean extreme event." Thesis, Perpignan, 2020. http://www.theses.fr/2020PERP0027.
Повний текст джерелаFreshwater ecosystems are highly vulnerable to anthropogenic disturbances. Indeed, they can be subject to multiple forms of pollution via, among other things, the leaching of soil from catchment basins but also the remobilisation of sediment from river beds and sewerage networks, phenomena that are accentuated during rainy episodes, which are particularly intense and frequent in regions with a Mediterranean climate. In a Mediterranean event studied previously, it was shown that discharges of pollutant mixtures occurred, coinciding with the water discharge peak and combined sewer overflows (CSO) that preceded it. During this thesis, we were able to verify that these multipollutions are recurrent, occurring at each CSO and water discharge peak along two other floods. We hypothesised that fluvial microbial communities, which constitute the only biological compartment able to degraded pollutants, could be largely impacted by these recurrent multipollutions in Mediterranean. This thesis aimed to determine the impact of pollutant mixtures on the evolution of the fluvial microbiome during extreme rainfall events via statistical modelling coupling high throughput sequencing data to a wide range of environmental parameters. Results showed a significant relationship between multipollutions events at CSOs and water discharge peak and the appearance of microorganisms linked to faecal matter, urban environments and resistant to pollutants and/or pathogens, which could strongly affect riverine resident communities. Given the rapid response of the fluvial microbiome to multi-pollutants, we were able to identify key multi-stress microorganisms, that could be used as new biomarkers to be incorporated into a multi-pollutant detection tool for water quality monitoring
Kortekaas, Stella. "Tsunamis, storms and earthquakes : distinguishing coastal flooding events." Thesis, Coventry University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.491429.
Повний текст джерелаRehak, Katrin, Manfred Strecker, and Helmut Echtler. "DEM supported tectonic geomorphology : the Coastal Cordillera of the South-Central Chilean active margin ; [Poster]." Universität Potsdam, 2006. http://www.uni-potsdam.de/imaf/events/ge_work0602.html.
Повний текст джерелаHere, we investigate fluvial terraces and erosional surfaces in the southern Chilean forearc to assess a long-term geomorphic and hence tectonic evolution. Remote sensing and field studies of the Nahuelbuta Range show that the long-term deformation of the Chilean forearc is manifested by breaks in topography, sequences of differentially uplifted marine, alluvial and strath terraces as well as tectonically modified river courses and drainage basins.
We used SRTM-90-data as basic elevation information for extracting and delineating drainage networks. We calculated hypsometric curves as an indicator for basin uplift, stream-length gradient indices to identify stream segments with anomalous slopes, and longitudinal river profiles as well as DS-plots to identify knickpoints and other anomalies. In addition, we investigated topography with elevation-slope graphs, profiles, and DEMs to reveal erosional surfaces.
During the first field trip we already measured palaeoflow directions, performed pebble counting and sampled the fluvial terraces in order to apply cosmogenic nuclide dating (10Be, 26Al) as well as provenance analyses.
Our preliminary analysis of the Coastal Cordillera indicates a clear segmentation between the northern and southern parts of the Nahuelbuta Range. The Lanalhue Fault, a NW-SE striking fault zone oblique to the plate boundary, defines the segment boundary. Furthermore, we find a complex drainage re-organisation including a drainage reversal and wind gap on the divide between the Tirúa and Pellahuén basins east of the town Tirúa. The coastal basins lost most of their Andean sediment supply areas that existed in Tertiary and in part during early Pleistocene time. Between the Bío-Bío and Imperial rivers no Andean river is recently capable to traverse the Coastal Cordillera, suggesting ongoing Quaternary uplift of the entire range.
From the spatial distribution of geomorphic surfaces in this region two uplift signals may be derived: (1) a long-term differential uplift process, active since the Miocene and possibly caused by underplating of subducted trench sediments, (2) a younger, local uplift affecting only the northern part of the Nahuelbuta Range that may be caused by the interaction of the forearc with the subduction of the Mocha Fracture Zone at the latitude of the Arauco peninsula. Our approach thus provides results in our attempt to decipher the characteristics of forearc development of active convergent margins using long-term geomorphic indicators. Furthermore, it is expected that our ongoing assessment will constrain repeatedly active zones of deformation.
Interdisziplinäres Zentrum für Musterdynamik und Angewandte Fernerkundung
Workshop vom 9. - 10. Februar 2006
Stolle, Jacob. "Debris Hazard Assessment in Extreme Flooding Events." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/39621.
Повний текст джерелаSOLE, FRANCESCO MARIA. "Valutazione della vulnerabilità delle coste della Sardegna a fenomeni di erosione ed inondazione dovuti all'impatto degli eventi estremi meteo-marini." Doctoral thesis, Università degli Studi di Cagliari, 2016. http://hdl.handle.net/11584/266637.
Повний текст джерелаWadey, Matthew P. "Understanding defence failures and coastal flood events : a case study approach." Thesis, University of Southampton, 2013. https://eprints.soton.ac.uk/359740/.
Повний текст джерелаHepworth, Daniel Ary. "Response of a Partially Mixed Coastal Plain Estuary to Storm Events." W&M ScholarWorks, 1988. https://scholarworks.wm.edu/etd/1539617584.
Повний текст джерелаPavel, Md Tanvir. "Three Essays on Managing Extreme Weather Events and Climatic Shocks in Developing and Developed Countries." FIU Digital Commons, 2018. https://digitalcommons.fiu.edu/etd/3797.
Повний текст джерелаSaeck, Emily A. "Nutrient Dynamics of Coastal Phytoplankton: The Role of Episodic Flow Events and Chronic Sewage Discharges." Thesis, Griffith University, 2012. http://hdl.handle.net/10072/367866.
Повний текст джерелаThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Griffith School of Environment
Science, Environment, Engineering and Technology
Full Text
Trubilowicz, Joel William. "Hydrometeorology and streamflow response during rain-on-snow events in a coastal mountain region." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/58191.
Повний текст джерелаArts, Faculty of
Geography, Department of
Graduate
Sobotka, Molly. "Legacy sediments in streams - effects on nutrient partitioning during simulated re-suspension events." VCU Scholars Compass, 2011. http://scholarscompass.vcu.edu/etd/2564.
Повний текст джерелаDiggins, Jennifer. "Slippery fish, material words : the substance of subsistence in coastal Sierra Leone." Thesis, University of Sussex, 2014. http://sro.sussex.ac.uk/id/eprint/51443/.
Повний текст джерелаSmall, David. "Beaufort coast wind climatology and case study of a high wind event." Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66951.
Повний текст джерелаTuktoyaktuk, une communauté sur la côte de Beaufort à l'ouest de l'arctique canadien, est aux prises à de graves épisodes d'érosion côtière à la fin de l'été, lorsque la couverture glacière est à son minimum et que soufflent de persistants et forts vents du nord-ouest. La prévalence de forts vents du nord-ouest le long de la côte de Beaufort a souvent été lié au passage de puissantes tempêtes. Dans cette étude, une climatologie des épisodes de vent de fin d'été est établie et mise en lien avec avec l'orographie de la chaîne de montagnes Brooks. La climatologie ainsi qu'une étude de cas détaillée d'un épisode de vents de force extrême indiquent qu'un anticyclone au dessus de la mer de Chukchi ou la mer de Beaufort conduit à un blocage d'air froid au nord de la chaîne Brooks qui modifie le gradient de pression dans une direction favorable à un mélange des forts vents géostrophiques nord-ouest au dessus de Tuktoyaktuk jusqu'à la surface dans une atmosphère stratifiée à stabilité neutre.
Mullins, Ruth Louise. "Characterizing marine mammal stranding events along the Texas coast." Texas A&M University, 2008. http://hdl.handle.net/1969.1/86047.
Повний текст джерелаAlbuquerque, Miguel da Guia. "Análise espaço-temporal das causas da variabilidade da linha de costa e erosão na praia do Hermenegildo, RS." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2013. http://hdl.handle.net/10183/72241.
Повний текст джерелаIn the context of the current discussion of climate change and its effects along the coast al zones, this study aims to broaden the understanding about the responsible factors for the well established coastal erosion at Hermenegildo beach, between the years 1947 and 2012, throughout the association of oceanographic data that may have lead to its intensification, and conventional geomorphological data. Using shoreline position data, through satellite imagery, air photographs of various periods combined with GPS RTK data collected in situ, it was possible to characterize shoreline behavior at micro and medium scale. TSM, wind strength and direction as well as wave height data from NOAA, have also been incorporated to this study. Along 65 years, mean shoreline recession has been of 1.68 m/yr, with highest erosion rates registered between 1996 and 2000 (6.29 m/yr) and between 2005 and 2006 (5.25 m/yr). The highest shoreline recession values coincide with El Niño periods and with TSM anomalies. Throughout the years when these events coincided and had the same intensity, the highest erosion rates were registered. A comparison between TSM data and mean shoreline recession demonstrated a positive correlation of 80%, in a scenario where SW winds predominate. Conversely, when TSM and mean local sea level (modeled), no significant correlation was observed. Nonetheless, when compared and analyzed separately, data varied coincidently for the same time interval, that is when variations in TSM occurred, mean sea level also varied. Understanding shoreline behavior is essential for coastal planning and development. This way, using the available data it was possible to predict future shoreline position for the years 2022, 2032 and 2100, using the 2012 shoreline position as a starting point. Resulting future shoreline positions are 8.18 m, 22.29 m and 151.57 m, respectively. Based on this information, a probabilistic map of erosion risk was prepared highlighting that the northern sector of Hermenegildo is more susceptible to erosion. The resulting cartographic product, which comprises information at various scales, may be used as an important tool for local coastal managers. Regarding the establishment of possible solutions in order to mitigate the erosion problem, the erosion probability map will give support to broaden urbanization along the beach, since the coastal managers will know which area are at higher or lower risk of erosion.
Chan, Yuen-man, and 陳苑雯. "Field and laboratory studies of E. coli decay rate at a coastal beach with reference to storm events." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B4598864X.
Повний текст джерелаTran, Hoa Thi. "Integration of Geospatial Technologies in Monitoring Drought Events in a Coastal Area of Vietnam (Case study: Binh Thuan Province)." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/95471.
Повний текст джерелаDoctor of Philosophy
Drought is a temporal climatic event with "drier than normal" conditions. While drought can occur in any climates, it can be more extreme in arid and semi-arid areas where annual rainfall and water resources are limited. Depending on types of drought, its presences and impacts may differ: (1) meteorological drought relates to a decrease of average rainfall/snowfall may resulting in moisture stress, (2) hydrological drought leads to a reduction of streamflow and groundwater, and (3) agricultural drought influences soil-water-crop balance or vegetation health. Prolonged drought – abnormally long duration of dry conditions, coupled with unsustainable management in water and land practice may cause losses of land productivity, promote soil erosion, and result in sand dominance in coastal areas. These land degradation processes can lead to "a desert-like condition" in impacted areas. This research concerns drought and its impacts in a coastal province in South central Vietnam, Binh Thuan. The study area is distinctive because its climate is characterized as one of the driest provinces in Vietnam. Annual rainfall in the North and near the coast is less than 800 mm per year, and during the 6 months of the dry season, there is almost no rain, or less than 50 mm. Due to precipitation deficits and high surface temperatures in recent years, meteorological droughts have occurred more frequently and lasted longer, stressing water resources for vegetation, wildlife, households, and industry. Additionally, unsustainable land management, such as overgrazing, coupled with movements of sand and barren lands from the coast inland, have accelerated the risks of land degradation. This research applies an integration of geospatial technologies for monitoring drought severity and impacts on land management and illustrates how local people have adapted to droughts.
Robert, Marie. "A study of El Ninõ events along the British Columbia coast /." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=55527.
Повний текст джерелаSambo, Beatrice <1995>. "Building the resilience of coastal systems to extreme events: the case of the Metropolitan City of Venice and its lagoon." Master's Degree Thesis, Università Ca' Foscari Venezia, 2020. http://hdl.handle.net/10579/16973.
Повний текст джерелаFreel, R. E. "The characteristics and geomorphological impact of 20th century extreme storm-surge events on a coastal dune site of Atlantic North Ireland." Thesis, Queen's University Belfast, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.411226.
Повний текст джерелаMazas, Franck. "Evènements météo-océaniques extrêmes." Thesis, Paris Est, 2017. http://www.theses.fr/2017PESC1148/document.
Повний текст джерелаThis PhD on published works aims at unifying the works carried out on the topic of extreme metocean events since 2009, while working for SOGREAH then ARTELIA.As these works went along, a leading theme progressively appeared: the notion of event, such as a storm. This concept provides a sound and relevant framework in particular in the case of multivariate extremes (such as joint probabilities of waves and sea levels), as well as a better understanding of the notion of return period, much used for design in the field of engineering.The main results of the works carried out in the last decade are as follows:- updating of the methodology for determining extreme wave heights or wind speeds:- development and justification of a two-step framework for extreme univariate over-threshold modelling introducing the concept of event and the separation of the physical and statistical thresholds,- proposal of practical tools for choosing the statistical threshold,- introduction of the parametric bootstrap approach for computing confidence intervals,- identification of a problematic issue in the behaviour of the Maximum Likelihood Estimator and proposal of a solution: use of 3-parameter distributions along with the L-moments estimator,- application of the POT framework to the Joint Probability Method for determining extreme sea levels:- distinction between sequential values and event peaks through extremal indexes for surge and sea level,- construction of a mixture model for the surge distribution,- refinements for handling tide-surge dependence,- application of the POT-JPM framework for the joint analysis of wave height and sea level:- proposal of an alternative sampling procedure,- separate analysis of tide and surge in order to model the dependence between wave height and surge to be incorporated in the joint distribution of wave height and sea level thanks to a 2D1D convolution operation,- use of extreme-value copulas,- improved presentation of the chi-plot,- introduction of a new classification for multivariate analyses:- Type A: a single phenomenon described by different physical quantities that are not of the same kind,- Type B: a phenomenon made of different components, described by physical quantities of the same kind between one component and another,- Type C: several phenomena described by physical quantities that are not of the same kind,- interpretation of the meaning of multivariate events:- link with the sampling procedure,- link with the different definitions of the return period,- in the bivariate case: transformation of the joint distribution of event-describing variables into the joint distribution of sequential pairs,- generation of alternative output plots such as contours of density for sequential pairs;- a dedicated R package, artextreme, for implementing the methodologies presented above
Acheampong, Henrietta. "Destination Branding : Focusing on Events Contribution on an Urban Level." Thesis, Södertörns högskola, Turismvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-43683.
Повний текст джерелаJames, Carl S. "Evaluation of COAMPS performance forecasting along coast wind events during a frontal passage." Thesis, Monterey, California. Naval Postgraduate School, 2005. http://hdl.handle.net/10945/2281.
Повний текст джерелаPerformance of high resolution mesoscale models has been in a continuous state of refinement since their inception. Mesoscale models have become quite skillful in forecasting synoptic scale events such as mid-latitude cyclones. However, atmospheric forcing becomes a much more complicated process when faced with the challenge of forecasting near topography along the coastline. Phenomena such as gap flows, blocked flow winds and low level stratification become important to predictability at these scales. The problem is further complicated by the dynamics of a frontal passage event. The skill of mesoscale models in predicting these winds is not as well developed. This study examines several forecasts by the Coupled Ocean Atmospheric Mesoscale Prediction System (COAMPS) during frontal passage events for the Winter of 2003-2004. An attempt is made to characterize the predictability of the wind speed and direction both before and after frontal passage along the California coast. Synoptic forcing during this time is strong due to the effects of the mid-latitude cyclones propagate across the Pacific. The study's results indicate that the wind field predictability is subject to several consistent errors associated with the passage of fronts over topography. These errors arise due to difficulty in the model capturing weak thermal advection events and topographic wind funneling. The deficiencies in model representation of topography contributes to these errors.
Lieutenant, United States Navy
James, Carl Sim. "Evaluation of COAMPS Forecasting performance of along coast wind events during frontal passages /." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2005. http://library.nps.navy.mil/uhtbin/hyperion/05Mar%5FJames.pdf.
Повний текст джерелаThesis Advisor(s): Wendell A Nuss. Includes bibliographical references (p. 61-62). Also available online.
Biccard, Aiden. "Fast food : the transport of particulate organic matter over an upwelling event on the west coast of southern Africa." Bachelor's thesis, University of Cape Town, 2007. http://hdl.handle.net/11427/25931.
Повний текст джерелаGagliardi, Marcelo Henrique. "Análise de Riscos Costeiros a Eventos Atmosféricos Extremos no Litoral Sul do Estado de São Paulo - Estudo de caso na região da Desembocadura de Cananéia." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/21/21136/tde-09042014-183047/.
Повний текст джерелаThe current study aims to cooperate in the knowledge about the effects of the occurrence of extreme storms on coastal systems through the case study of the Desembocadura de Cananéia, located on Ilha Comprida - SP. The work included campaigns of field survey to collect topographic data and sediment samples, analysis of environmental conditions during the period of surveys, determination of the shoreline evolution through analysis of aerial photos and satellite images and numerical simulations to characterize the wave regime present in the region. Thematic maps were produced to represent the flood hazard associated with the occurrence of storm surges. Results indicated that the action of storm waves occurs primarily by means of the onshore-offshore transport on daily and monthly time scales. The evolution of the shoreline obtained pointed to greater efficiency of longshore currents on the decadal scale. The comparison between the topographic/volumetric results and the evolution of the coastline shows an erosive trend in the vicinity of the Pontal de Fora associated with the incidence of extreme weather events for the period between 2001 and early 2012. The results of the determinations of flood hazard areas points out that the major local impacts related to the global climate changes will come from variations in the frequency of occurrence and intensity of storms
Bronikowski, Jason Lee. "Sedimentary environments and processes in a shallow, Gulf Coast Estuary-Lavaca Bay, Texas." Texas A&M University, 2004. http://hdl.handle.net/1969.1/1098.
Повний текст джерелаPerriquet, Marie. "Characterization of the hydrodynamics and saltwater wedge variations in a coastal karst aquifer in response to tide and precipitation events (Bell Harbour catchment, Co. Clare, Ireland)." Thesis, Montpellier 2, 2014. http://www.theses.fr/2014MON20042/document.
Повний текст джерелаLow-lying coastal areas in the west of Ireland, such as the Galway and Clare coasts, have seen recent increases in flooding frequencies coupled with overall increases in sea level. The impacts of these changes are most strongly felt in coastal karst catchments and this study focuses on one such area, the Bell Harbour catchment (~50 km²), where there is a clear interaction between rainfall inputs and tidal influences, to create a terrestrial salt water wedge. Data (specific conductivity and water levels) have been collected at two coastal springs, six boreholes, three lakes, and from discrete locations in the middle of the bay, using dedicated loggers over extended periods. Two approaches that provided consistent results were used to explain the different hydrodynamic behaviours identified in the boreholes (conduits, fissures and matrix flows). Specific conductivity variations and water chemistry measured inland allowed for assessment of the spatial extent of the saltwater wedge into the aquifer as a function of both karst recharge and tidal movements at high/low and neap/spring tidal cycles. The extent of the saltwater wedge depends on the intrinsic properties of the aquifer but also on the relative influence of the recharge and the tide on groundwater levels, which induce opposite behaviours. This dynamic between recharge and the tide thus controls the seawater inputs, hence explaining temporal and spatial changes in the saltwater wedge in this coastal karst aquifer. Strong tidal amplitudes seems to be the motor of sudden saltwater intrusion observed in the aquifer near the shore while the relative elevation of the groundwater appears to influence the intensity of the salinity increase. The magnitude of annual recharge in the area is high enough to limit saltwater intrusion to no more than about one kilometre inland from the shore. Given the anticipated decreases in summer precipitation (~10 percent), coupled with anticipated sea level rises, the extent of the saltwater wedge into the aquifer is likely to increase in coming decades
Keck, Jennifer R. "Changes in Coral Populations on the Northwest Coast of Roatan, Honduras, Subsequent to the 1998 Coral Bleaching Event and Hurricane Mitch." NSUWorks, 2004. http://nsuworks.nova.edu/occ_stuetd/280.
Повний текст джерелаVan, der Borch van Verwolde Emile. "Characteristics of extreme wave events and the correlation between atmospheric conditions along the South African coast." Master's thesis, University of Cape Town, 2004. http://hdl.handle.net/11427/11055.
Повний текст джерелаCharacteristics of extreme wave events along the coast of South Africa were researched through a dataset obtained by CSIR wave recording network at four locations. The locations from west to east are Slangkop, FA-Platform (Agulhas bank), East London and Richards Bay. The longest dataset available was the 25-year dataset at Slangkop measured by accelerometer wave buoys. In the subsequent years the wave recording network along the South African coast was expanded to six locations at present.
Alharbi, Mohammad Mosaed Eid Alahmadi. "Analysis of extreme precipitation events over the eastern Red Sea coast for recent and future climate conditions." Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8603/.
Повний текст джерелаOltmanns, Marilena. "Strong wind events across Greenland's coast and their influence on the ice sheet, sea ice and ocean." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/98825.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (pages 129-143).
In winter, Greenland's coastline adjacent to the subpolar North Atlantic and Nordic Seas is characterized by a large land-sea temperature contrast. Therefore, winds across the coast advect air across a horizontal temperature gradient and can result in significant surface heat fluxes both over the ice sheet (during onshore winds) and over the ocean (during offshore winds). Despite their importance, these winds have not been investigated in detail, and this thesis includes the first comprehensive study of their characteristics, dynamics and impacts. Using an atmospheric reanalysis, observations from local weather stations, and remote sensing data, it is suggested that high-speed wind events across the coast are triggered by the superposition of an upper level potential vorticity anomaly on a stationary topographic Rossby wave over Greenland, and that they intensify through baroclinic instability. Onshore winds across Greenland's coast can result in increased melting, and offshore winds drive large heat losses over major ocean convection sites. Strong offshore winds across the southeast coast are unique over Greenland, because the flow is funneled from the vast ice sheet inland into the narrow valley of Ammassalik at the coast, where it can reach hurricane intensity. In this region, the cold air, which formed over the northern ice sheet, is suddenly released during intense downslope wind events and spills over the Irminger Sea where the cold and strong winds can drive heat fluxes of up to 1000 W m-2, with potential implications for deep water formation. Moreover, the winds advect sea ice away from the coast and out of a major glacial fjord. Simulations of these wind events in Ammassalik with the atmospheric Weather Research and Forecast Model show that mountain wave dynamics contribute to the acceleration of the downslope flow. In order to capture these dynamics, a high model resolution with a detailed topography is needed. The effects of using a different resolution locally in the valley extend far downstream over the Irminger Sea, which has implications for the evolution and distribution of the heat fluxes.
by Marilena Oltmanns.
Ph. D.
Ireton, Greg S. "Classification of summertime West Coast fog and stratus events and the development of fog and stratus forecast techniques." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2001. http://handle.dtic.mil/100.2/ADA397067.
Повний текст джерелаThesis advisor: Nuss, Wendell. "September 2001." Includes bibliographical references (p. 125-129). Also Available in print.
Ramulifho, Aluwani Elijah. "Variability and characterizations of wind events over the Cape Columbine region along the west coast of South Africa." Master's thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/9810.
Повний текст джерелаWind data over Cape Columbine is investigated over a 38 year long time series to determine whether there are noticeable changes or variability through time. The long period dataset is collected using an Automatic Weather Station. Diurnal and seasonal to annual characterizations of wind together with occurrences of related events are established. Other linkages with synoptic to near-global (e.g., ENSO) scale circulations are investigated by examining relationships with other meteorological variables. This is achieved by complimenting long term data series with data from the new technologically advanced Automatic Weather Station (AWS). From the new AWS, several relationships and connections between different atmospheric variables were developed. These include the relationship between Air Temperature and Humidity, Wind Speed and Atmospheric Pressure, and Wind Direction and Rainfall. The AWS is able to monitor the passage of synoptic (e.g., cold fronts) and mesoscale (e.g., coastal low) weather systems. Passages of cold fronts over time could easily be detected by utilizing all the different variables as recorded by the AWS (Air Temperature, Wind Speed and Direction, Relative Humidity, Atmospheric Pressure and Rainfall). The most significant atmospheric system that passed over Cape Columbine over the 2009/10 summer was a deep low pressure system, where a significant amount of rainfall, atmospheric pressure depression and drop in temperature were witnessed. There were 17 upwelling events during this six months study period. Several of them were short-lived at 4 to 6 day durations, and the longest upwelling event occurred on the 24th December 2009 and lasted until January 14th 2010. An investigation into the variability in characteristics and behavior of wind signals at Cape Columbine was conducted. The study investigated wind behavior for the period 1957 to 1995 with data collected from a point source Automatic Weather Station. Apart from the characteristics of wind over time period, linkages with large scale circulations, frequency and duration of these wind events occurrences were studied. These were achieved by partitioning the study period into different time scales; namely, the diurnal, seasonal, inter-annual and the decadal. On the diurnal time scale, a strong variability in wind strength over the course of each day due to the land/sea breeze existed. Seasonally, the wind regime in Cape Columbine was found to be driven by the latitudinal shifting of the semi-permanent South Atlantic Anticyclone. However, there are pre-dominant southerly winds throughout the year. The long record showed the possible influence of ENSO and the Benguela Niño on interannual and decadal variations in the winds at Cape Columbine.
Burgess, Peter Mark. "A quantitative forward modelling analysis of the controls on passive rift-margin stratigraphy." Thesis, University of Oxford, 1994. http://ora.ox.ac.uk/objects/uuid:1249833d-ef11-4327-bdbd-5d0c40faa29e.
Повний текст джерелаFredline, Elizabeth. "Host Community Reactions to Major Sporting Events: The Gold Coast Indy and the Australian Formula One Grand Prix in Melbourne." Thesis, Griffith University, 2000. http://hdl.handle.net/10072/366728.
Повний текст джерелаThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Tourism and Hotel Management
Griffith Business School
Full Text
Cooke, Melanie. "The synoptic- and planetary-scale environments associated with significant 1000-hPa geostrophic wind events along the Beaufort Sea coast." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=86997.
Повний текст джерелаL'étude du climat régional et du météorologie du Mer Beaufort est motivée par son variabilité interannuelle important et par la réchauffement qui y est observée. En essayant de comprendre les évenements à vents forts, qui peuvent forcer les dynamiques du glace marine et les ondes tempêtes, leurs environnements caractéristiques aux échelles synoptiques et planétaires sont définies et analysées en utilisant la donnée globale réanalysée. Une dépendance sur une dépression Aleutienne augmentée ou diminuée est trouvée. Ca produit un évenement à vents géostrophiques forts à 1000-hPa soit du soud-est soit du nord-ouest. La modèle caractéristique du mi-troposphère pour ces deux types d'évenements distincts démontrent des similarités aux modèles Pacifique/Nord-Américain positive et negative, mais leurs corrélations ont besoin d'être évaluées.
Bovy, Kristine M. "Effects of human hunting, climate change and tectonic events on waterbirds along the Pacific Northwest coast during the late Holocene /." Thesis, Connect to this title online; UW restricted, 2005. http://hdl.handle.net/1773/6548.
Повний текст джерелаGonzález, Hunt Ricardo M. "Boom-to-bust. The scallop (Argopecten purpuratus) fishery in the Pisco-Paracas region, southern Peruvian coast." Pontificia Universidad Católica del Perú. Centro de Investigación en Geografía Aplicada, 2013. http://repositorio.pucp.edu.pe/index/handle/123456789/119750.
Повний текст джерелаEste trabajo examina los ciclos de expansión (boom) de la explotación de la concha de abanico (Argopecten purpuratus) observados en la región Pisco-Paracas del sur del Perú, resultantes de los fenómenos El Niño de 1982-1983 y 1997-1998.Los apacibles puertos de pesca han sido transformados por estos booms productivos que han atraído actores externos y han generado un impacto en la sociedad local. Las instituciones gubernamentales, en su papel de administradores de recursos y protectores del medio ambiente, han tratado de controlar el acceso a una región que hasta hace poco contenía la única área marina protegida del Perú.Esta situación ha producido un rápido crecimiento de la industria de la concha de abanico, su sobreexplotación y el agotamiento de dicho recurso, y ha producido una crisis de sostenibilidad. Asimismo, este trabajo examina las contradicciones y las relaciones entre las escalas local, regional, nacional e internacional.
Engel, Max [Verfasser], Helmut [Akademischer Betreuer] Brückner, Frank [Akademischer Betreuer] Schäbitz, and Christophe [Akademischer Betreuer] Morhange. "The chronology of prehistoric high-energy wave events (tropical cyclones, tsunamis) in the southern Caribbean and their impact on coastal geo-ecosystems : a case study from Bonaire (Leeward Antilles) / Max Engel. Gutachter: Helmut Brückner ; Frank Schäbitz ; Christophe Morhange." Köln : Universitäts- und Stadtbibliothek Köln, 2012. http://d-nb.info/1038227496/34.
Повний текст джерелаSwanepoel, Lehahn Searle. "Positioning in Somali narratives in the Saldanha bay municipality area on the west coast of South Africa." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/17879.
Повний текст джерелаENGLISH ABSTRACT: This study is interested in discourses of displacement in which migrants articulate the experience of seeking improved life chances in a community considerably removed from their place of origin. Not only physical and environmental distance, but also distance related to cultural, linguistic and religious differences distinguish the (im)migrants from the local indigenous population, which is already a culturally and linguistically diverse community. This study investigates how histories of displacement and experiences of alienation or integration may be discursively managed among a group of young Somali males aged between 15 and 35 who entered South Africa in their late teens or early twenties. Specifically, this thesis considers how young Somali men who relocated to a rural Western Cape town and make a living through trading, present themselves in English-language narratives elicited during informal interviews. The study was conducted in Vredenburg, the administrative centre and economic hub of the Saldanha Bay Municipal area on the West Coast of South Africa. The data for the study was collected by means of audio recorded interviews. To supplement this data and gain more perspective on the situatedness of the discourses, the researcher further relied on field notes as well as additional informal conversations with the participants. The data was collected over a period of five months in 2007. To analyse the data, the researcher draws on the theoretical frameworks of Labov's structural analysis of narratives and Wodak and Reisigl's (2001) discourse-historical approach, and Bamberg's (1997) narrative constructivist perspective. The research aims to determine (i) how the narrators construct themselves in their narratives, and (ii) how speakers position themselves towards the content of their narratives, and towards their actual and imagined audiences. This study shows that displacement brings about new contexts characterised by uncertainty, conflict and inequalities, and this influences the way narrators orient themselves. The Somali narrators, in interviews conducted in English with a community outsider, position themselves as displaced and marginalised. During their narratives, the participants used several linguistic strategies to present themselves in various ways to actual or imagined audiences, which lead to negative otherpresentation and positive self-presentation and construction of in-group and out-group membership.
AFRIKAANSE OPSOMMING: Hierdie studie fokus op diskoerse van ontworteling waarin migrante hul ervaring verwoord van ’n soeke na beter lewensgeleenthede in ’n gemeenskap ver verwyderd van hul plek van herkoms. Buiten vir die fisiese en omgewingsafstand, is daar ook afstand daargestel deur kulturele, linguistiese en godsdiensverskille, wat die (im)migrante onderskei van die plaaslike bevolking – op sigself ’n kultureel en linguisties diverse gemeenskap. Hierdie studie doen ondersoek na hoe geskiedenisverhale oor ontworteling en ervarings van vervreemding of integrasie diskursief bestuur kan word binne ’n groep jong Somaliese mans van 15 tot 35 jaar wat Suid-Afrika in hul laat tienerjare of vroeë twintigerjare binnegekom het. Die tesis fokus spesifiek op hoe jong Somaliese mans wat na ’n plattelandse Wes-Kaapse dorp migreer het en ’n handelsbestaan voer, hulself voorstel in Engelstalige narratiewe wat ontlok is tydens informele onderhoude. Die studie is gedoen in Vredenburg, die administratiewe en ekonomiese kern van die Saldanhabaai Munisipale Area aan die Weskus van Suid-Afrika. Die data vir die studie is ingesamel deur middel van klankopnames van onderhoude. Ten einde dié data aan te vul en meer perspektief te verkry ten opsigte van die plasing van die diskoerse, het die navorser verder gesteun op veldnotas sowel as bykomende informele gesprekke met die deelnemers. Die data is oor ’n tydperk van vyf maande in 2007 versamel. In die ontleding van die data maak die navorser gebruik van die teoretiese raamwerke van Labov se strukturele analise van narratiewe en Wodak en Reisigl (2001) se diskoers-historiese benadering, asook Bamberg (1997) se narratief-konstruktivistiese perspektief. Die navorsing het ten doel om vas te stel (i) hoe die vertellers hulself in hul narratiewe konstrueer, en (ii) hoe sprekers hulself posisioneer ten opsigte van die inhoud van hul narratiewe en ten opsigte van hul werklike en denkbeeldige gehore. Hierdie studie toon dat ontworteling nuwe kontekste skep wat gekenmerk word deur onsekerheid, konflik en ongelykhede en ’n invloed het op die wyse waarop vertellers hulself orienteer. Tydens onderhoude met ’n gemeenskapsbuitestaander, uitgevoer in Engels, posisioneer die Somaliese vertellers hulself as ontwortel en gemarginaliseer. In hul narratiewe gebruik hulle verskeie linguistiese strategieë om hulself op verskillende maniere voor te stel aan werklike en denkbeeldige gehore wat lei tot ’n negatiewe voorstelling van die Ander, ’n positiewe voorstelling van die Self en die daarstelling van binne- en buite-groep lidmaatskap.
Suliman, Tammam [Verfasser], Uta [Gutachter] Berger, der Maaten-Theunissen Mareike [Gutachter] van, and Wael [Gutachter] Ali. "Understanding the dynamics of even-aged stands of Brutia pine (Pinus brutia Ten.) in the coastal region of Syria based on a distance-independent individual-tree growth model / Tammam Suliman ; Gutachter: Uta Berger, Mareike van der Maaten-Theunissen, Wael Ali." Dresden : Technische Universität Dresden, 2020. http://d-nb.info/1227833695/34.
Повний текст джерелаAlsarawi, Noura. "Design of Low Impact Development and Green Infrastructure at Flood Prone Areas in the City of Miami Beach, FLORIDA, USA." FIU Digital Commons, 2018. https://digitalcommons.fiu.edu/etd/3739.
Повний текст джерела