Tesis sobre el tema "Arid rivers"
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Carini, Giovannella y n/a. "Effects of Contemporary and Historical Processes on Population Genetic Structure of Two Freshwater Species in Dryland River Systems (Western Queensland, Australia)". Griffith University. Australian School of Environmental Studies, 2004. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20050113.081250.
Texto completoCarini, Giovannella. "Effects of Contemporary and Historical Processes on Population Genetic Structure of Two Freshwater Species in Dryland River Systems (Western Queensland, Australia)". Thesis, Griffith University, 2004. http://hdl.handle.net/10072/367070.
Texto completoThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Australian School of Environmental Studies
Full Text
Wittenberg, Lea. "Structural patterns and bed stability of humid temperate, Mediterranean and semi-arid gravel bed rivers". Thesis, University of Newcastle Upon Tyne, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391270.
Texto completoSarma, Diganta. "Assessment of sustainable groundwater utilization with case studies from semi-arid Namibia". University of the Western Cape, 2016. http://hdl.handle.net/11394/5649.
Texto completoThe thesis addresses sustainability of groundwater utilization in arid and semiarid regions of Namibia. Recharge in this hydrogeological setting occurs as discrete events to aquifers that are bounded in extent. Case studies involving fractured hardrock and alluvial aquifers with aquifer-ephemeral river interaction were considered. The nature of recharge to arid region bounded aquifers was explored. In arid region aquifers, roundwater storage is depleted during extended dry periods due to pumping and natural discharge. Steady state conditions are rarely achieved. With lowering of the water table, evapotranspiration is reduced thus decreasing aquifer discharge. However, depletion of ephemeral river flow is the primary source of water to boreholes. Physical constraints such as river bed and aquifer hydraulic properties set a limit to the degree of natural replenishment possible during flow events. An approach to assessing sustainable yield of a fractured rock aquifer associated with ephemeral river flow is discussed using a case study from rural semi-arid Namibia. Limited data required the simulation results to be verified against geological and hydrogeological constraints. The aquifer’s gain in storage is estimated through numerical simulation. It provides a basis for groundwater scheme management that rely on limited data in semi-arid conditions in sub-Saharan Africa. Aspects related to ephemeral river flow and groundwater recharge to strip alluvial aquifers was addressed in the second case study. The processes controlling infiltration, significance of surface water and groundwater losses, and possible artificial recharge options were investigated through numerical simulation. It was concluded that recharge processes in arid alluvial aquifers differ significantly from those in humid systems. Conjunctive use of surface and groundwater resources require artificial augmentation of aquifer recharge due to constrains in natural infiltration rates. The study provides a reference for sustainable management of alluvial aquifer systems in similar regions. It is seen from the study that high rates of groundwater exploitation deplete surface water resources needed downstream while failure to capture surface flow during flood events cause loss of potential recharge. It is concluded that as water demand in Namibia increases, basin wide combined surface water and groundwater resource evaluation and management have become a necessity.
Lindsey, Melanie. "Sampling Frequency for Semi-Arid Streams and Rivers: Implications for National Parks in the Sonoran Desert Network". Thesis, The University of Arizona, 2010. http://hdl.handle.net/10150/193445.
Texto completoHussey, Stephen W. "The feasibility of sand-abstraction as a viable method of ground water abstraction". Thesis, Loughborough University, 2003. https://dspace.lboro.ac.uk/2134/14054.
Texto completoCapon, Samantha Jane y n/a. "Flow Variability and Vegetation Dynamics in a Large Arid Floodplain: Cooper Creek, Australia". Griffith University. Australian School of Environmental Studies, 2004. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20040513.110733.
Texto completoCapon, Samantha Jane. "Flow Variability and Vegetation Dynamics in a Large Arid Floodplain: Cooper Creek, Australia". Thesis, Griffith University, 2004. http://hdl.handle.net/10072/366451.
Texto completoThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Australian School of Environmental Studies
Full Text
McIntyre, Rebecca Elise Sinclair. "Soil biogeochemistry and flooding in intermittent streams of the semi-arid Pilbara region". University of Western Australia. School of Plant Biology, 2009. http://theses.library.uwa.edu.au/adt-WU2009.0115.
Texto completoCunha, Costa Alexandre. "Analyzing and modelling of flow transmission processes in river-systems with a focus on semi-arid conditions". Phd thesis, Universität Potsdam, 2012. http://opus.kobv.de/ubp/volltexte/2012/5969/.
Texto completoDie Bewirtschaftung von Wasserressourcen in ariden und semiariden Landschaften ist mit einer Reihe besonderer Probleme konfrontiert. Eines der größten Probleme für die Maßnahmenplanung und für das operationelle Management ist der Mangel an hydrologischen Daten und damit zusammenhängend auch die relativ kleine Zahl wissenschaftlicher Arbeiten zu dieser Thematik. In dieser Arbeit wurden 1) die grundlegenden hydrologischen Bedingungen von Trockenflusssystemen analysiert, 2) ein Modellsystem für Flüsse unter semiariden Bedingungen, und 3) ein nichtparametrisches Vorhersage-verfahren für Abflussvorgänge in Flüssen entwickelt. Der Wasserverlust in einem großen Abschnitt des Jaguaribe Flusses im nordöstlichen Brasilien wurde auf Basis von Daten zu Abflussraten, Grundwasserflurabstände und mit Hilfe multitemporaler Satellitendaten analysiert. Dafür wurde zuerst ein konzeptionelles hydrologisches Modell über die Mechanismen der Transferverluste in diesem Abschnitt des Trockenflusses erstellt. Dabei ergab sich, dass der Flussabschnitt mit dem Grundwasser hydraulisch verbunden ist. Der Flussabschnitt weist in der Trockenenzeit und am Anfang der Regenzeit nur Wasserverlust (Sickerung) zum Grundwasser auf. Im Laufe der Regenzeit findet auch ein gegenseitiger Austausch vom Grundwasser mit dem Flusswasser statt. Aufgrund dieser hydraulischen Kopplung zwischen Flusswasser und Grundwasser sind für diesen Flussabschnitt hydrologische Modellansätze anzuwenden, die generell für gekoppelte Fluss-Grundwassersysteme, v.a. in feuchtgemäßigten Klimaten, entwickelt wurden. Es wurde ein neuartiges hydrologisches Simulationsmodell für Transferverluste in Trockenflüssen entwickelt. Dieses Modell ist für unterschiedliche aride und semiaride Landschaften anwendbar und hat eine flexible Modellstruktur, wodurch unterschiedliche Hypothesen zur Relevanz einzelner hydrologische Prozesse getestet werden können. Es wurde für den zuvor genannten großen Abschnitt des Jaguaribe Flusses im nordöstlichen Brasilien und für einen kleinen Flussabschnitt im „Walnut Gulch Experimental Watershed“ (WGEW) in Arizona, Südwest-USA, angewendet. Für die eine prozess-orientierte Simulation von Abflussbedingungen und Transferverlusten im Einzugsgebiet des Jaguaribe hat sich gezeigt, dass die am besten geeignete Modellstruktur sowohl den Austausch zwischen Flusswasser und Grundwasser (senkrecht zur Fließrichtung des Flusses) als auch die parallel zum Fluss verlaufende Grundwasserströmung enthält. Die Simulationsexperimente mit unterschiedlichen Modellstrukturen („Hypothesentest“) reduzierte nicht nur die Modellstrukturunsicherheit, sondern quantifizierte auch die Qualität der Modellergebnisse bei folgenden Varianten der Modellstruktur: a) Abflluss im Fluss ohne Interaktion mit dem Grundwasser (keine Transferverluste) und b) Interaktion zwischen Fluss und Grundwasser ohne parallelen Grundwasserstrom zum Flussstrom. Durch die Anwendung auf die beiden unterschiedlichen Trockenflusssysteme wurden neue Erkenntnisse über die Sensitivität des Modells unter verschiedenen Bedingungen erworben. Beispielsweise waren die Parameter der ungesättigten Zone, die von hoher Relevanz für den kleinen Flussabschnitt im WGEW waren, viel sensitiver als die Parameter der gesättigten Zone, die besonders relevant für den Jaguaribe Flussabschnitt in Brasilien waren. Die Ursache für diese sehr unterschiedliche Sensitivität liegt darin, dass beim WGEW das Flusswasser nur mit der ungesättigten Zone in Kontakt steht, da sich in diesem Gebiet, welche im Vergleich zur Jaguaribe-Region noch deutlich trockener ist, kein Grund-wasserleiter bildet. Letztlich wurde ein nicht-parametrisches Verfahren, zur Simulation der deterministischen Evolution und stochastischen Fluktuation der Abflussdynamik entwickelt. Im Unterschied zu prozessbasiertem Modellsystemen basiert dieses Verfahren nicht auf Modellkalibrierung sondern auf einem Lernprozess, basierend auf Zeitreihendaten. Als Anwendungsbeispiel wurde ein mesoskaliges Einzugsgebiet im Erzgebirge, NO-Deutschland gewählt, in dem starke Abflussereignisse entweder durch konvektive Niederschlagsereignisse oder durch Schneeschmelze generiert werden. Die folgenden wichtigsten Ergebnisse wurden erzielt: • Regressionsmodellansätze basierend auf den zeitlichen Änderungen der Abflüsse liefern bessere Ergebnisse gegenüber Ansätzen basierend auf direkten Abflussdaten; • mit zunehmendem Vorhersagehorizont wandelt sich das hydrologische System von einem mit Zufallsanteilen verrauschten dynamischen System zu einem linearen probabilistischen Zufallsprozess; • Bei zunehmendem Abfluss (ansteigenden Ganglinie) erfolgt meist eine Abflussunterschätzung, bei abnehmendem Abfluss (fallende Ganglinie) erfolgt meist eine Abflussüberschätzung. Dieses nichtparametrische Verfahren ergibt im Vergleich mit einem prozess-orientierten und flächenverteilten hydrologischen Hochwasservorhersagemodell bis zu einem Vorhersagezeitraum von 3 Stunden Ergebnisse von vergleichbar guter Qualität. Letztendlich wurde ein Vorgehen bzgl. künftiger Forschungen zu hydrologischer Modellierung vorgeschlagen. Das Ziel dabei war ein wissenschaftliches Verfahren zur Verbesserung des hydrologischen Wissens über ein Einzugsgebiet. Diese Verfahren basiert auf einem Hypothesentest zu den relevanten hydrologischen Prozessen und der Untersuchung der Sensitivitäten der hydrologischen Variablen bei unterschiedlichen Einzugsgebieten.
Garófano, Gómez Virginia. "Riparian vegetation patterns according to hydrogeomorphological factors at different spatial and temporal scales in Mediterranean rivers". Doctoral thesis, Universitat Politècnica de València, 2013. http://hdl.handle.net/10251/29395.
Texto completoGarófano Gómez, V. (2013). Riparian vegetation patterns according to hydrogeomorphological factors at different spatial and temporal scales in Mediterranean rivers [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/29395
TESIS
Fox, John Tyler. "Spatiotemporal Patterns and Drivers of Surface Water Quality and Landscape Change in a Semi-Arid, Southern African Savanna". Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/81462.
Texto completoPh. D.
Yaraghi, N. (Navid). "Assessing the impacts of artificial groundwater recharge structures on river flow regime in arid and semi-arid regions". Master's thesis, University of Oulu, 2017. http://urn.fi/URN:NBN:fi:oulu-201709062799.
Texto completoImam, Bisher 1960. "Evaluation of disaggregation model in arid land stream flow generation". Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/277033.
Texto completoBunting, Daniel Paul. "Riparian Restoration and Management of Arid and Semiarid Watersheds". Diss., The University of Arizona, 2012. http://hdl.handle.net/10150/228166.
Texto completoFossati, Jacques. "Caractéristiques du système oued en milieu hyperaride, végétation des oueds du désert oriental septentrional (Egypte) et phytoécologique d'un secteur de l'oued Sannur". Université Joseph Fourier (Grenoble), 1995. http://www.theses.fr/1995GRE10138.
Texto completoPotts, Daniel Lawrence. "Rainfall Variability and Carbon Cycling in Semi-Arid Ecosystems". Diss., Tucson, Arizona : University of Arizona, 2005. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu%5Fetd%5F1338%5F1%5Fm.pdf&type=application/pdf.
Texto completoAlcantara-Ayala, Irasema. "Modelling mass movement risk under semi-arid mountainous conditions : the Alpujarride complex, Spain". Thesis, King's College London (University of London), 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267249.
Texto completoWirth, Timo Matti. "Water, Agriculture + settlement design in the arid lower Colorado River Basin : 3 new models". Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/65750.
Texto completo"June 2011." Cataloged from PDF version of thesis.
Includes bibliographical references (p. 108-109).
This thesis investigates possible conversions of an increasingly unviable type of irrigated agricultural landscape, seen under the influences of three simultaneous processes: urban growth, change of cropping practice and return to the desert. Three new prototypical models are designed and tested: an urban-rural oasis, an adapted rural settlement and an inhabited desert park. An analysis of historical hydrological alteration and agrarian/urban settlement processes in the Colorado River Lower Basin focuses on a region in a pivotal situation: Central Arizona and its agricultural irrigation districts. Here, the three models are tested on a hypothetical site of one square mile and simultaneously investigated in an abstract matrix of regionally applicable principles. In an increasing order, the urbanrural oasis, the adapted rural settlement, and the inhabited desert park reduce water needs by rainwater harvesting/-storage and greywater re-use. They are resilient towards droughts by allowing farmers to temporarily fallow agricultural elements, or, in the case of the desert park, by hosting partially seasonal uses and importing drinking water as necessary. The urban-rural oasis relies on a localized form of agriculture that allows selling all produce directly on site, mainly to its inhabitants, with a large recreational emphasis. The adapted rural settlement targets the emerging new food markets in the urban region with high-value crops, and diversifies production to include native agroforestry for energy production and woodcraft. The desert park contains a low input-output dryland agriculture and sporadic recreational desert harvesters. All three models rely on phased forms of settlement growth, increased income opportunities on site by the (re-)combination of land uses and the creation of microclimates by a strategic arrangement of vegetated land cover in proximity to settlement. Residential options span from medium- to low-density detached courtyard types; different sizes of garden homes, haciendas and farm communities to desert villas, and even RV campgrounds; with the urban-rural oasis having the largest range of choices among the options. Each model may attract broad concentrations and ranges of regional lifestyle groups between urban/suburban, agrarian and nature-oriented communities, of a permanent or an ephemeral nature. A single overarching condition is the realistic acknowledgment of both the obvious challenges and plentiful qualities of the desert. Various cultures could unfold together with the idea of saving water. There seems to be an enormous potential in converting the agricultural landscape into a more resilient and diversified one, along pathways proposed by the three models. Moreover, attempts to free up volumes of water on large sites would be one of the fundamental necessary steps to more permanently embrace both human and natural life in an arid and unique environment like the Lower Colorado River Basin.
by Timo Matti Wirth.
S.M.
Treese, Samantha. "Stream/Aquifer Interactions in a Semi-Arid Effluent Dependent River: A Clogging Conceptual Model". Thesis, The University of Arizona, 2008. http://hdl.handle.net/10150/193317.
Texto completoDlikilili, Sinethemba. "Variability of vegetation in the Touws river and catchment using remote sensing". University of the Western Cape, 2019. http://hdl.handle.net/11394/6955.
Texto completoChanges in climate patterns have raised concerns for environmentalists globally and across southern Africa. The changes greatly affect the growth dynamics of vegetation to such an extent that climate elements such as rainfall have become the most important determinant of vegetation growth. In arid and semi-arid environments, vegetation relies on near-surface groundwater as the main source of water. Changes in the environment due to climate can be examined by using remotely sensed data. This approach offers an affordable and easy means of monitoring the impact of climate variability on vegetation growth. This study examined the response of vegetation to rainfall and temperature, and assessed the dependence thereof on groundwater in a climatically variable region of the semi-arid Karoo. The methodology used included sampling plant species in the riparian and non-riparian areas over two plant communities in seven vegetation plots. The Normalised Difference Vegetation Index (NDVI) derived from the Landsat OLI and TM was used to measure vegetation productivity. This was compared with rainfall totals derived from the Climate Hazards Group InfraRed Precipitation with Station data (CHIRPS) and the mean monthly temperature totals. A drought index, (Standardised Precipitation Index – SPI) was an additional analysis to investigate rainfall variability. Object-based Image Analysis (OBIA) and Maximum Likelihood supervised classification approaches together with indicators of groundwater discharge areas (Topographic Wetness Index – TWI, and profile curvature) were used to map vegetation and surface water that depend on groundwater.
Whittemore, Aaron Maitland. "Analysis of Human Influence on Drought Conditions in the Upper Colorado River Basin (Texas)". Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/99053.
Texto completoMaster of Science
It is expected that many arid climates around the globe will become even experience more frequent drought during the 21st century. Drought is a lack of water relative to normal levels and has important implications for agriculture, industry, fisheries, water managers, and the broader public. Drought is normally attributed to natural factors such as lack of rain or increases in temperature. Humans have affected these factors through global climate change, and many researchers have focused their efforts on understanding how global warming impacts drought conditions. However, humans can also affect drought conditions through water consumption. Despite the impact of human water consumption, it is rarely a topic of specific study in relation to the occurrence of drought. Here, conditions lacking human influence (i.e. no water consumption, land-use change, etc.) are simulated and compared to observed data from a stream gage downstream from human intervention, allowing for examination of human influences on drought. Public water usage and management data from the Colorado River Municipal Water District are also incorporated to allow for more specific understanding of how human influence affects drought conditions downstream of reservoir operation and groundwater pumping. Results show that drought occurred more often, persisted longer on average, and had a higher maximum duration due to human influence. Water usage and management by the Colorado River Municipal Water District are connected to and have a role in causing decreases in downstream flow and occurrence of drought. Results indicate that demand reductions will likely be needed to ensure sustainable water availability and that reducing demand during periods of low rainfall or during times of the year in which human water use accounts for larger portions of drought severity could be most helpful in lessening downstream drought.
Fuller, Jonathan Edward. "Paleoflood hydrology of the alluvial Salt River, Tempe, Arizona". Thesis, The University of Arizona, 1987. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_etd_hy0163_sip1_w.pdf&type=application/pdf.
Texto completoAhmed, Mohamed Saber Mohamed Sayed. "Hydrological Approaches of Wadi System Considering Flash Floods in Arid Regions". 京都大学 (Kyoto University), 2010. http://hdl.handle.net/2433/126791.
Texto completoFish, Suzanne K. "Agriculture and society in arid lands a Hohokam case study /". Diss., The University of Arizona, 1993. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1993_589_sip1_w.pdf&type=application/pdf.
Texto completo"In addition to chapters [leaves 20-57] unique to the dissertation, ten papers are included that were published during the period of doctoral enrollment"--Leaf 19. Includes bibliographical references.
Nelson, Gregory A. "Optimal well field design for reducing phreatophyte uptake losses". Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/277142.
Texto completoHenshel, Judy 1958. "Copper, manganese, and zinc in Puerco River sediments". Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276725.
Texto completoGuber, Albert L. "Channel changes of the San Xavier Reach of the Santa Cruz River, Tucson, Arizona 1971-1988". Thesis, The University of Arizona, 1988. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1988_608_sip1_w.pdf&type=application/pdf.
Texto completoNajmaddin, Peshawa Mustafa. "Simulating river runoff and terrestrial water storage variability in data-scarce semi-arid catchments using remote sensing". Thesis, University of Leicester, 2017. http://hdl.handle.net/2381/40771.
Texto completoNeenan, Johnathan. "Evaluation of Stream Bank Restoration to Improve Water Quality in a Semi-Arid Stream". DigitalCommons@USU, 2019. https://digitalcommons.usu.edu/etd/7687.
Texto completoParker, John Travis Chesluk 1947. "Geomorphology and hydrology of the Santa Cruz River, Southeastern Arizona". Diss., The University of Arizona, 1996. http://hdl.handle.net/10150/191201.
Texto completoSekese, Siviwe Pamela. "Geomorphic analysis of river character and behaviour in three semi-arid, mountainous catchments in the Eastern Cape, South Africa". University of Western Cape, 2019. http://hdl.handle.net/11394/7412.
Texto completoThe analysis of what controls why rivers are the way they are, and how and why they change is crucial in predicting river dynamics and deriving classification systems that can assist management. A variety of factors control the pattern of fluvial styles in a river system across spatial scales. The geomorphic response of a river to an individual control, such as stream power for example, will vary due to a combination of other contributing factors such as geology and climate.
Mendes, Wagner Josà da Silva. "Adaptation of streeter model - Phelps for water quality modeling in a large semi-arid basin". Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=13522.
Texto completoEste trabalho apresenta uma adaptaÃÃo do modelo clÃssico de Streeter-Phelps para modelagem de OxigÃnio Dissolvido (OD) e Demanda BioquÃmica de OxigÃnio (DBO) na bacia do Alto Jaguaribe (Ãrea de 25.000 km2), Estado do CearÃ, Brasil. A adaptaÃÃo do modelo consistiu na resoluÃÃo numÃrica das equaÃÃes diferenciais de Streeter-Phelps, considerando o efeito de vazÃes incrementais e lanÃamentos de esgoto ao longo dos trechos, assim como a variabilidade das seÃÃes dos rios e tributÃrios. Para calibraÃÃo do modelo, incluindo o ajuste dos coeficientes de reaeraÃÃo (K2) e remoÃÃo de DBO (Kd), foram utilizados os dados do Plano de Gerenciamento das Ãguas da Bacia do Rio Jaguaribe. Os resultados da calibraÃÃo mostraram que esse modelo simplificado representou bem o balanÃo entre OD e DBO em uma grande bacia semiÃrida, apresentando um bom ajuste para os dois parÃmetros. Para OD, o desvio mÃdio foi de 8,44% e 6,04% para o fim e inÃcio da estaÃÃo chuvosa, respectivamente. Jà para DBO, os desvios foram de 18,51% e 30,43% para as duas estaÃÃes, respectivamente. Nos dois perÃodos, o OD manteve-se dentro dos padrÃes para Classe 2 da resoluÃÃo CONAMA 357/2005 em todo o trecho e a DBO infringiu este limite em um pequeno trecho prÃximo à cidade de TauÃ. Com o modelo jà calibrado, foram simulados trÃs cenÃrios: uma grande cheia, utilizando como vazÃo de referÃncia o Q10 de uma sÃrie histÃrica do Jaguaribe; estiagem, utilizando o Q50 da sÃrie histÃrica; e, implantaÃÃo de uma ETE com remoÃÃo de 80% de DBO em todas as sedes. As simulaÃÃes apresentaram resultados coerentes e que servem como base para o gerenciamento dos recursos hÃdricos da bacia estudada.
Baillie, Matthew Nelson. "Quantifying baseflow inputs to the San Pedro River a geochemical approach /". Thesis, The University of Arizona, 2005. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_2005_019_sip1_w.pdf&type=application/pdf.
Texto completoHirschboeck, Katherine K. "Hydroclimatology of flow events in the Gila River basin, central and southern Arizona". Diss., The University of Arizona, 1985. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1985_68_sip1_w.pdf&type=application/pdf.
Texto completoRoth, Frances Ann. "Implications of stratigraphic completeness analysis for magnetic polarity stratigraphic studies". Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/558017.
Texto completoBetancourt, Julio L. "Tucson's Santa Cruz River and the arroyo legacy". Diss., The University of Arizona, 1990. http://hdl.handle.net/10150/191157.
Texto completoMoursi, Hossam. "A Risk-Based Assessment of Agricultural Water Scarcity Under Climate Change in a Semi-Arid and Snowmelt-Dominated River Basin". DigitalCommons@USU, 2016. https://digitalcommons.usu.edu/etd/4999.
Texto completoMacLeod, Andrew Harris. "Characterization of Sediment Yield Variation, Little Colorado River Basin Near Saint Johns Arizona". Thesis, The University of Arizona, 2001. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_2001_222_sip1_w.pdf&type=application/pdf.
Texto completoMcGinness, Heather M. y n/a. "SPATIAL HETEROGENEITY AND HYDROLOGICAL CONNECTIVITY IN A DRYLAND, ANABRANCHING FLOODPLAIN RIVER SYSTEM". University of Canberra. Resource, Environmental & Heritage Sciences, 2007. http://erl.canberra.edu.au./public/adt-AUC20070731.094606.
Texto completoDouglas, John Elmer. "Regional interaction in the Northern Sierra: An analysis based on the late prehistoric occupation of the San Bernardino Valley, southeastern Arizona". Diss., The University of Arizona, 1990. http://hdl.handle.net/10150/185011.
Texto completoLacher, Laurel Jane 1964. "Recharge characteristics of an effluent dominated stream near Tucson, Arizona". Diss., The University of Arizona, 1996. http://hdl.handle.net/10150/191199.
Texto completoRonayne, Michael James y Thomas III Maddock. "Flow model for the Bingham cienega area, San Pedro river basin, Arizona: a management and restoration tool". Department of Hydrology and Water Resources, University of Arizona (Tucson, AZ), 1996. http://hdl.handle.net/10150/615701.
Texto completoBaird, Kathryn J., Michael J. Ronayne y Thomas III Maddock. "PRELIMINARY VEGETATION AND HYDROLOGIC ANALYSES FOR BINGHAM CIENEGA". Department of Hydrology and Water Resources, University of Arizona (Tucson, AZ), 1997. http://hdl.handle.net/10150/615776.
Texto completoSobczak, Robert Valentine. "Confusion where ground and surface waters meet : Gila River General Adjudication, Arizona, and the search for subflow". Thesis, The University of Arizona, 1994. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_etd_hy0325_sip1_w.pdf&type=application/pdf.
Texto completoMorehouse, Barbara Jo. "Landscape as text a sociogeographic study of the Santa Cruz River within the vicinity of Tucson, Arizona /". Thesis, The University of Arizona, 1990. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1990_204_sip1_w.pdf&type=application/pdf.
Texto completoCunha, Costa Alexandre Verfasser] y Axel [Akademischer Betreuer] [Bronstert. "Analyzing and modelling of flow transmission processes in river-systems with a focus on semi-arid conditions / Alexandre Cunha Costa. Betreuer: Axel Bronstert". Potsdam : Universitätsbibliothek der Universität Potsdam, 2012. http://d-nb.info/1022746278/34.
Texto completoGrow, David Earl. "Effects of substrate on dendrochronologic streamflow reconstruction: Paria River, Utah with fractal application to dendrochronology". Diss., The University of Arizona, 2002. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_2002_312_sip1_w.pdf&type=application/pdf.
Texto completoLima, Ernane Cortez. "Planejamento ambiental como subsÃdio para gestÃo ambiental da bacia de drenagem do aÃude Paulo Sarasate Varjota-CearÃ". Universidade Federal do CearÃ, 2012. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=10322.
Texto completoO trabalho tem como objetivo oferecer propostas de planejamento como subsÃdio para gestÃo ambiental da bacia de drenagem do AÃude Paulo Sarasate, localizado no municÃpio de Varjota â CE, regiÃo oeste do estado do CearÃ, com uma Ãrea de 3.501 kmÂ. Neste estudo, procurou-se contextualizar a Ãrea da pesquisa, atravÃs da anÃlise dos atributos do sistema geoambiental (geologia, geomorfologia, clima, recursos hÃdricos, solos, vegetaÃÃo e fauna) e as formas de uso e ocupaÃÃo da terra. A base metodolÃgica utilizada foi a anÃlise geossistÃmica e foram feitos levantamentos bibliogrÃficos, cartogrÃficos e trabalhos de campo. A partir dessa metodologia, foram identificadas quatro unidades geoambientais: a DepressÃo Sertaneja, a PlanÃcie Fluvial do Rio Acaraà os MaciÃos Residuais, e parte do Planalto da Ibiapaba. Utilizou-se como ferramenta bÃsica o sensoriamento remoto, atravÃs de processo digital de imagens de satÃlite Landsat 7; elaborou-se mapas temÃticos tendo como apoio as folhas da SUDENE/DSG SB.24-V-B-I (Santa QuitÃria) e a folha SB.24-V-A-III (IpÃ) (1:100.000), sendo a porÃÃo da unidade geoambiental estudada representada com base em escala de 1:50.000. A montante do AÃude Paulo Sarasate estÃo os municÃpios de HidrolÃndia, Ipueiras, Nova Russas, Catunda, ArarendÃ, Tamboril e Monsenhor Tabosa, e quatro importantes reservatÃrios da bacia do rio Acaraà com capacidade de acumulaÃÃo de Ãgua semelhante à do aÃude em estudo, sÃo eles: Farias de Sousa (Nova Russas), CarÃo (Tamboril), Aroeiras (Nova Russas), Bonito (IpÃ). Grande parte das Ãreas, a montante do AÃude Paulo Sarasate, encontra-se em processo de desmatamento bastante acentuado, como à o caso da Ãrea de nascentes do rio AcaraÃ. Com isso hà ocorrÃncia de processos de assoreamento, vossorocas e ravinamentos nas vertentes, tendo como consequÃncia a diminuiÃÃo do fluxo hÃdrico nas calhas fluviais. Outro fator relevante constitui o crescimento demogrÃfico dos pequenos centros urbanos dos municÃpios, alÃm da criaÃÃo ou mudanÃa de hÃbitos, da âmelhoria do nÃvel de vidaâ, do desenvolvimento industrial (microempresas) e de uma sÃrie de outros fatores. O diagnÃstico elaborado permitiu a definiÃÃo de propostas de estratÃgias de planejamento e gestÃo ambiental no sentido de recuperaÃÃo, conservaÃÃo e preservaÃÃo ambiental, por meio de um zoneamento nas escalas de 1:100.000 (regional), acompanhado por um plano de gestÃo em nÃvel municipal, 1:100.000. Palavras-chave: Planejamento Ambiental. GestÃo Ambiental. SemiÃrido. Bacia HidrogrÃfica.
The work aims at planning and management environmental catchment AÃude Paulo Sarasate, located in the municipality of Varjota â EC, in western state of CearÃ, with an area of 3,501square kilometers. In this study, tried to contextualize the research area by analysis of geoenvironmental system attributes (geology, geomorphology, climate, water resources, soils, vegetation and (fauna) and ways to use and occupy the land. The base design was used to analyze geo were made bibliographic, cartographic and fieldwork. Based on this methodology were identified three environmental units: Depression Hinterland, the river plain of the river and the Solid Acaraà Residuals. Was used as the basic tool remote sensing, through a process of digital Landsat 7 satellite images, thematic maps have been prepared having as support the leaves SUDENE / DSG SB.24-VB- I (Clover St.) and the leaf SB.24-V-B-I (IPU) (1:100,000), the portion of the unit Geoenvironmental studied represented based on a scale of 1:50,000. Upstream of the dam are the Paulo Sarasate HidrolÃndia municipalities, Ipueiras, New Russia, Catunda ArarendÃ, Monkfish and Monsignor Tabosa, and four important reservoirs of the river basin with Acaraà accumulation capacity similar to water in the reservoir study, they were: Farias de Sousa (Nova Russas), CarÃo (Tamboril), Aroeiras (Nova Russas), Bonito (IpÃ). Great of the areas upstream of the dam Paulo Sarasate, is in the process of deforestation rather pronounced as in the case of area sources of the river AcaraÃ. Thus there is an occurrence of processes siltation, solifluxion, Gullies and ravines in strands, resulting in the decreased flow river water in the gutters. Another relevant factor is the population growth of small centers urban municipalities, and the creation or change of habits, âimprovement of living standardsâ, the industrial development (micro enterprises) and a number of other factors. The diagnosis made possible the definition of proposals for planning strategies and environmental management in order to restore, maintain and environmental preservation through zoning in scales of 1:100,000 (regional), accompanied by a plan management at municipal level, 1:100,000. Keywords: Planning. Management Environmental. Semi-Arid. River Basin.
Carver, Scott Stevenson. "Dryland salinity, mosquitoes, mammals and the ecology of Ross River virus". University of Western Australia. School of Animal Biology, 2008. http://theses.library.uwa.edu.au/adt-WU2009.0100.
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