Дисертації з теми "Site hydrology"
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Graham, Aaron Robert. "In Situ Characterization of Unsaturated Soil Hydraulic Properties at the Maricopa Environmental Monitoring Site." Thesis, The University of Arizona, 2004. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_etd_hy0005_m_sip1_w.pdf&type=application/pdf.
Повний текст джерелаHebert, Kevin D. "Site Investigation of Underground Storage Tank Contamination." Arizona-Nevada Academy of Science, 1990. http://hdl.handle.net/10150/296431.
Повний текст джерелаNew regulations concerning the management of underground storage tanks (USTs) have resulted in increased awareness of environmental contamination resulting from leaking USTs. The objective of the typical underground storage tank investigation is to determine if any subsurface contamination has occurred as a result of tank or product line leakage, fuel spills or overfills. Soil contamination at underground storage tank sites is usually discovered during the removal and replacement of USTs. Techniques that can be used to detect the presence of soil contamination adjacent to existing USTs include soil vapor analysis, exploratory boring, and soil and ground water sampling. The lateral and vertical extent of contamination must be determined at any site which contains detectable quantities of contamination. Two common methods for determining the extent of contamination are over-excavation and borehole drilling and sampling. Boring design and location considerations include number of borings, borehole depth and spacing, and site sub -surface conditions. Differentiation between perched sub -surface water and aquifers is critical. Once an appropriate boring plan has been established, then a sampling and analysis plan must be adopted that meets the needs of the particular investigation. The determination of the extent of contamination at an underground storage tank site is the first step leading to site closure and remediation.
Journell, Scot. "Site Remediation of Underground Storage Tank Contamination." Arizona-Nevada Academy of Science, 1990. http://hdl.handle.net/10150/296432.
Повний текст джерелаRemedial techniques for sub-surface soil and water contamination are dependent on the lateral and vertical extent of petroleum hydrocarbon contamination and the type of petroleum hydrocarbons which have been released into the sub-surface. Specific remedial technologies are required for diesel fuel and heavy oils compared to the more volatile gasoline compounds. Available remedial technologies for vadose zone contamination include excavation and treatment; soil vapor extraction and possible vapor burning; bioremediation; and chemical treatment. Remedial technologies for ground-water contamination include water recovery, contaminant volatilization, carbon adsorption, bioremediation and water reinjection. Specialized apparatuses are utilized when petroleum hydrocarbon product floating on the water table surface must be separated from the ground water. A number of hydrologic considerations must be evaluated prior to any remediation scenario. These considerations include geologic characterization of the sub-surface soil matrix, and aquifer.
Camp, Stephen E. "Soil Vapor Surveys for Cost Cutting Site Characterization." Arizona-Nevada Academy of Science, 1991. http://hdl.handle.net/10150/296438.
Повний текст джерелаNew technical approaches and cost cutting alternatives are being utilized in the environmental engineering field. These unique methods are used in the mapping, delineation and remediation of contaminated sites. One development which has seen a sudden increase in the recent past is the utilization of soil vapor surveys to map contamination plumes in the vadose zone. Using the soil vapor method, industrial sites and sites containing potential buried drums or underground storage tanks can be quickly evaluated for the presence of volatile contaminants. This information can be especially important in property transactions where buyers desire to protect themselves from potential costly clean-ups. The soil vapor survey consists of sampling volatile vapors in the vadose zone and analysis of the vapors on analytical instruments. The survey targets those contaminants which have volatilized from residues in soils or shallow ground water. One method of sampling soil vapors is penetrating five to ten feet into the sub-surface with a sampling probe. Upon collection of the vapors, concentrations may be measured. The analytical instruments can range from simple Drager Tubes to a laboratory gas chromatograph. The methodology for selecting sampling locations depends on the site. An underground storage tank facility may be approached by completing sampling locations at the tank pit and near the product lines. A grid sampling location map may be used to sample a property with an unknown organic content. Soil vapor surveys have limitations in regards to soil types, sampling depths and constituents being analyzed. However, given the proper conditions, soil vapor surveys can provide qualitative data at lower costs than alternative methods.
Ouellette, Karli J. "Hydrologic applications of GPS site-position observations in the Western U.S." Thesis, University of California, Irvine, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3605189.
Повний текст джерелаPermanent Global Positioning System (GPS) networks have been established around the globe for a variety of uses, most notably to monitor the activity of fault lines and tectonic plate motion. A model for utilizing GPS as a tool for hydrologic monitoring is also developed.
First, observations of the recent movement of the land surface throughout California by the Scripps Orbit and Permanent Array Center (SOPAC) GPS network are explored. Significant seasonal cycles and long term trends are related to historical observations of land subsidence. The pattern of deformation throughout the state appears to be caused by the occurrence of poroelastic deformation of the aquifer in the Central Valley, and elastic crustal loading by surface water and the winter snowpack in the Sierra Nevada Mountains. The result is a sort of teeter-totter motion between the Valley and the mountains where the Valley sinks in the dry season while the mountains lift, and the mountains sink in the wet season while the Valley lifts.
Next, the elastic crustal deformation caused by the winter snowpack is explored more thoroughly at 6 high elevations throughout the Western United States. Expected annual deformation as a result of thermoelastic and snow water equivalent are calculated using SNOTEL observations and an elastic half-space model. The results demonstrate the dominance of snow loading on the seasonal vertical land surface deformation at all 6 GPS stations. The model is then reversed and applied to the GPS vertical site-position observations in order to predict snow water equivalent. The results are compared to SNOTEL observations of snow water equivalent and soil moisture. The study concludes that GPS site-position observations are able to predict variations in snow water equivalent and soil moisture with good accuracy.
Then a model which incorporates both elastic crustal loading and poroelastic deformation was used to predict groundwater storage variations at 54 GPS stations throughout the Central Valley, CA. The results are compared to USGS water table observations from 43 wells. The predictions and observations show a similar magnitude and spatial pattern of groundwater depletion on both a seasonal and long term timescales. Depletion is focused on the southernmost part of the Valley where GPS reveals seasonal fluctuation of the water table around 2 m and 8 m/yr of water table decline during the study period. GPS also appears to respond to deformation from peat soils and changing reservoir storage in the northern parts of the Valley.
Finally, preliminary work exploring the potential for using GPS as a tool for monitoring snowmelt runoff and infiltration is explored at one station in Eastern Idaho. Taking the difference between the change in GPS water storage estimates with time and the change in SNOTEL observed snow water equivalent with time produces a time series of infiltration, or the amount of water added to storage in the geologic profile. Then subtracting the estimated infiltration and snow water equivalent from the total precipitation observed by SNOTEL produces a time series of runoff. The estimated runoff at the GPS site was compared to observations from a nearby stream gauge and the foundation for a more extensive comparison is laid out.
The overall impact of this work is to introduce the unique hydrologic information and monitoring capabilities which can be accessed through monitoring of the land surface position using GPS. As GPS networks grow and expand worldwide, the available data should be harnessed by the hydrologic community for the benefit of local water management as well as improvements to data assimilated models. The work presented here represents only a small fraction of the wealth of knowledge that could result from a budding field of GPS hydrologic remote sensing. (Abstract shortened by UMI.)
Burger, Mark Allen. "A wetland trafficability hazard index based on soil physical properties and site hydrology evaluations." Thesis, Virginia Tech, 1994. http://hdl.handle.net/10919/42629.
Повний текст джерелаMaster of Science
Lakel, William A. "Slash Mulching and Incorporation as Mechanical Site Preparation for Pine Plantation Establishment and Subsequent Effects on Soil Moisture and Site Hydrology." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/9874.
Повний текст джерелаMaster of Science
Stein, David Martin. "A 3-dimensional numerical flow analysis of a superfund site in Ohio /." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61079.
Повний текст джерелаThe objective of the present thesis study is to determine the effectiveness of the site remediation program since the commencement operations in January 1987. To accomplish this task, an analytical and 3-dimensional numerical flow analysis was performed. (Abstract shortened by UMI.)
Ringler, Joseph William. "MONITORING THE HYDROLOGY OF SOILS FOR ON-SITE WASTEWATER TREATMENT SYSTEMS USING MATRIC POTENTIAL SENSORS." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1243013245.
Повний текст джерелаLiu, Shuyun. "A sequential inverse approach for hydraulic tomography and electrical resistivity tomography: An effective method for site characterization." Diss., The University of Arizona, 2001. http://hdl.handle.net/10150/279846.
Повний текст джерелаHallard, M. "The effects of agricultural drainage on the hydrology of a grassland site in South-West England." Thesis, University of Exeter, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384728.
Повний текст джерелаHawkins, Adam J. "Measurement of the spacial distribution of heat exchange in a geothermal analog bedrock site using fiber-otic distributed temperature sensing." Thesis, California State University, Long Beach, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1527320.
Повний текст джерелаMas-Pla, Josep. "Modeling the transport of natural organic matter in heterogeneous porous media: Analysis of a field-scale experiment at the Georgetown site, South Carolina." Diss., The University of Arizona, 1993. http://hdl.handle.net/10150/186412.
Повний текст джерелаMcQuade, Theresa Lynn. "Hydrogeochemical Characterization of Acid-Mine Drainage, Ohio Valley Mushroom Farm Site in North Lima, Ohio." University of Akron / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=akron1353785356.
Повний текст джерелаHodgkins, Julia Elizabeth. "The effects of whole tree harvesting on site hydrology and soil structure at Beddgelert Forest, N. Wales, UK." Thesis, University of Plymouth, 1996. http://hdl.handle.net/10026.1/1904.
Повний текст джерелаKoestner, Peter E., Karen A. Koestner, and Daniel G. Neary. "Monitoring the Effects of Air-Quality on Forests: An Overview of the Sierra Ancha Experimental Forest ICP-Level II Site." Arizona-Nevada Academy of Science, 2012. http://hdl.handle.net/10150/301341.
Повний текст джерелаThe Sierra Ancha International Cooperative Program on Assessment and Monitoring of Air Pollution Effects on Forests study site or (SAEF-ICP II) is part of an international network of cooperative forest monitoring sites spread throughout Europe and the United States. The United Nations Economic Commission for Europe established the ICP II network in 1985 to monitor long-term effects of transboundary air pollution. The Sierra Ancha Experimental Forest was chosen to be a part the U.S.’s network because it is the southernmost Experimental Forest in the contiguous U.S., and because it is downwind from a major metropolitan area, Phoenix, Arizona. The site monitoring includes forest overstory growth, crown condition, foliar chemistry, understory vegetation, litterfall, soil chemistry meteorology, ozone, and deposition. This paper provides an overview of the ICP forest network, and discusses the research currently underway at the Sierra Ancha ICP II site. An overview of the challenges encountered while implementing ICP Level II monitoring will also be included.
Illman, Walter A. "Single- and cross-hole pneumatic injection tests in unsaturated fractured tuffs at the Apache Leap Research Site near Superior, Arizona." Diss., The University of Arizona, 1999. http://hdl.handle.net/10150/284217.
Повний текст джерелаHumes, Karen Sue, and Soroosh Sorooshian. "THE ESTIMATION AND SCALING OF LAND-SURFACE FLUXES OF LATENT AND SENSIBLE-HEAT WITH REMOTELY SENSED DATA OVER A GRASSLAND SITE." Department of Hydrology and Water Resources, University of Arizona (Tucson, AZ), 1993. http://hdl.handle.net/10150/617639.
Повний текст джерелаHumes, Karen Sue. "The estimation and scaling of land-surface fluxes of latent and sensible heat with remotely sensed data over a grassland site." Diss., The University of Arizona, 1992. http://hdl.handle.net/10150/186059.
Повний текст джерелаPedersen, Jonas. "Site Application of a Channel Network Model for Groundwater Flow and Transport in Crystalline Rock." Thesis, Uppsala universitet, Luft-, vatten och landskapslära, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-354486.
Повний текст джерелаApipattanavis, Somkiat. "Stochastic nonparametric methods for multi-site weather generation and flood frequency estimation: Applications to construction delay, hydrology and agricultural modeling." Connect to online resource, 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3303820.
Повний текст джерелаSimkover, Elizabeth Gail. "A groundwater flow model of the aquifer intercommunication area, Hanford site, Washington." PDXScholar, 1986. https://pdxscholar.library.pdx.edu/open_access_etds/3690.
Повний текст джерелаMargo, Michael Ray. "Restoration of resaca wetlands and associated wet prairie habitats at Palo Alto Battlefield National Historic Site." Texas A&M University, 2003. http://hdl.handle.net/1969.1/3918.
Повний текст джерелаLeyland, R. C. "Vulnerability mapping in karst terrains, exemplified in the wider Cradle of Humankind World Heritage Site." Pretoria : [s.n.], 2008. http://upetd.up.ac.za/thesis/available/etd-02112009-171849/.
Повний текст джерелаHauser, James W. "Effects of hydrology-altering site preparation and fertilization/release on plant diversity and productivity in pine plantations in the coastal plain of Virginia." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-05042010-020225/.
Повний текст джерелаMiao, Ziheng. "Application of Stable Isotopes and Geochemical Analysis to Characterize Sulfate, Nitrate, and Trace Element Contamination of Groundwater and Its Remediation at a Former Uranium Mining Site." Diss., The University of Arizona, 2013. http://hdl.handle.net/10150/293389.
Повний текст джерелаMiwa, Masato. "Physical and Hydrologic Responses of an Intensively Managed Loblolly Pine Plantation to Forest Harvesting and Site Preparation." Diss., Virginia Tech, 1999. http://hdl.handle.net/10919/29049.
Повний текст джерелаPh. D.
Kjellander, Kalle. "River-Aquifer Interaction in the Uppsala Esker - a Modelling Study of a Proposed Drinking Water Production site." Thesis, Uppsala universitet, Luft-, vatten och landskapslära, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-355671.
Повний текст джерелаGävle och Älvkarlebys kommuner är i behov av nya grundvattentäkter för att kunna försörja invånarna med dricksvatten i framtiden. Ett område som är av intresse för de två kommunerna är ett grundvattenmagasin i Uppsalaåsen intill Dalälven mellan Älvkarleby och Skutskär. Vid ett dricksvattenuttag kan vattenbalansen i magasinet ändras. I magasinet uppskattas grundvattenbildningen vara för låg för att pumpa upp nog mycket vatten och bibehålla en stabil dricksvattenförsörjning. När uttaget av grundvatten är högre än grundvattenbildningen sänks grundvattenytan och vatten flödar från andra delar av magasinet eller älven för att kompensera. Älvvattnet bedöms ha en stark hydraulisk koppling med grundvattnet, vilket innebär att det finns en risk att älvvattnet infiltrerar i magasinet och sänker kvalitén på framtida dricksvatten.Konsultföretaget Midvatten AB har i uppdrag att bedöma möjligheten till ett framtida dricksvattenuttag. Midvatten har som lösning anlagt stationer med sprinklerinfiltration för att i framtiden kunna infiltrera avhumifierat älvvatten som på sikt omvandlas till grundvatten. Denna konstgjorda infiltration är också tänkt att hindra älvvatten från att ta sig in i magasinet genom att förse magasinet med den mängd vatten som går förlorad av dricksvattenuttag. Hur mycket älvvatten som tar sig in till grundvattenmagasinet och når brunnarna vid ett framtida uttag och konstgjord infiltration, är dock oklart.Syftet med denna studie var att uppskatta flödet mellan åsens grundvattenmagasin och Dalälven och specifikt infiltrationen av älvvatten. Detta gjordes genom att utveckla en digital MODFLOW-flödesmodell i programmet GMS. Modellen kunde, med hjälp av uppmätta vattennivåer i grundvattenmagasinet och älven, räkna ut hur mycket vatten som flödade in från älven (infiltrerade). Den uträknade infiltrationen låg i genomsnitt på 3-25 l s-1. Infiltrationsmängden berodde på vilken brunn som vattnet pumpades ur, hur mycket som pumpades ut och hur mycket artificiell infiltration som tillfördes i de tre infiltrationsområdena under en period av 2017. Modellen användes även till att uppskatta flödet från älven för 28 tilltänkta scenarier under 2017 med konstant pumpning och konstgjord infiltration i de olika brunnarna och infiltrationsstationerna.Resultaten visade att modellen kunde uppskatta grundvattenmagasinets vattennivåer nära älven men inte på längre avstånd ifrån älven. Detta berodde på att magasinets hydrauliska parametrar inte var korrekt fördelade. Fördelningen kunde ha förbättrats om de baserats på jordarter från borrprotokoll istället för en jordartskarta. Modellen visade att mycket lite älvvatten flödar in i akviferen om vatten artificiellt infiltreras nära älven. För att resultaten av den här studien ska bli tillförlitliga krävs det att resultaten jämförs med andra metoder som använder sig av förslagsvis partikelspårningsmodeller, spårämnesstudier eller flödesmätningar av flodbädden.
Balocchi, Francisco, and Francisco Balocchi. "Soil Behavior during Freeze-Thaw Processes at a Snow-Dominated Forest Site Simulated with the Physically-Based Numerical Water Flow and Heat Transport Soil in Cold Regions Model (SCRM)." Thesis, The University of Arizona, 2016. http://hdl.handle.net/10150/621367.
Повний текст джерелаFreeman, Andrea Kelly Lee. "Middle to late holocene stream dynamics of the Santa Cruz River, Tucson, Arizona : implications for human settlement, the transition to agriculture and archaeological site preservation." Diss., The University of Arizona, 1997. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1997_349_sip1_w.pdf&type=application/pdf.
Повний текст джерелаTang, Han, and Han Tang. "The Importance of Prior Geologic Information on Hydraulic Tomography Analysis at the North Campus Research Site (NCRS)." Thesis, The University of Arizona, 2016. http://hdl.handle.net/10150/621836.
Повний текст джерелаVesselinov, Velimir Valentinov. "Numerical inverse interpretation of pneumatic tests in unsaturated fractured tuffs at the Apache Leap Research Site." Diss., The University of Arizona, 2000. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_2000_95_sip1_w.pdf&type=application/pdf.
Повний текст джерелаBaron, Dirk. "Analysis and Numerical Simulation of the Ground Water System at the Bonneville Navigation Lock Site, Oregon." PDXScholar, 1990. https://pdxscholar.library.pdx.edu/open_access_etds/4027.
Повний текст джерелаFourno, Andre. "Modélisation multi-échelle des transferts en milieux fracturés : application au site de Äspö (Suède)." Phd thesis, Université de Poitiers, 2005. http://tel.archives-ouvertes.fr/tel-00218275.
Повний текст джерелаBelle, Emilien. "Évolution de l'impact environnemental de lixiviats d'ordures ménagères sur les eaux superficielles et souterraines, approche hydrobiologique et hydrogéologique. Site d'étude : décharge d'Étueffont (Territoire de Belfort – France)." Phd thesis, Université de Franche-Comté, 2008. http://tel.archives-ouvertes.fr/tel-00400680.
Повний текст джерелаMoreau, Luc. "Comportement d'un glacier tempere sur son lit rocheux. Vitesses de glissement, hydrologie et hydrographie. Etude effectuee au sein du site sous-glaciaire d'emosson glacier d'argentiere, massif du mont-blanc, france." Université Joseph Fourier (Grenoble), 1995. http://www.theses.fr/1995GRE10202.
Повний текст джерелаRajaguru, Mudiyanselage Thilanki Maneesha Dahigamuwa. "Enhancement of Rainfall-Triggered Shallow Landslide Hazard Assessment at Regional and Site Scales Using Remote Sensing and Slope Stability Analysis Coupled with Infiltration Modeling." Scholar Commons, 2018. https://scholarcommons.usf.edu/etd/7562.
Повний текст джерелаJuglea, Silvia. "Simulation de l'humidité du sol-température de brillance à partir des données in situ dans le cadre de la validation des produits SMOS : site test Valencia Anchor Station." Phd thesis, Université Paul Sabatier - Toulouse III, 2011. http://tel.archives-ouvertes.fr/tel-00697305.
Повний текст джерелаRamboz, Claire. "Métamorphisme hydrothermal et réactions d'oxydo-réduction en contexte de marge passive et de zone de cisaillement ductile : genèse des concentrations Zn-Pb et graphite associées." Phd thesis, Institut National Polytechnique de Lorraine - INPL, 1988. http://tel.archives-ouvertes.fr/tel-00617110.
Повний текст джерелаRamanathan, Ramya. "LINKING PLUME SPREADING TO HIERARCHICAL STRATAL ARCHITECTURE." Wright State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=wright1238547912.
Повний текст джерелаWoodhouse, Elizabeth Gail. "Perched water in fractured, welded tuff mechanisms of formation and characteristics of recharge /." Diss., The University of Arizona, 1997. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1997_87_sip1_w.pdf&type=application/pdf.
Повний текст джерелаPandey, Ganesh Raj. "Regional estimation of floods and rainfalls for ungauged sites." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=40219.
Повний текст джерелаThe second part of the research deals with the estimation of floods at an ungauged site using regional physiographic and climatic variables. To this end, a detailed study was carried out to determine the best technique for estimating the parameters of the commonly used power-form flood regionalization model, and to identify the minimum number of physiographic and hydrometeorological variables which should be included in the model. The study was further elaborated by applying the linear and nonlinear covariance structural models. Results of a numerical example using hydrologic data from Quebec and Ontario have indicated the superior performance of the nonlinear optimization method. Further, it was found that the significant variables which should be considered in the estimation of floods, are the area of the basin, the basin slope and the total precipitation five days before the flood for Quebec, and the area of the basin, the area of forests, lakes, and marses and the slope of the main channel for Ontario.
The third part of the study proposed a new method of flood estimation based on the scaling of the statistical moments of the regional flood series with the basin area. Analysis of the physiographic and hydrologic data from Quebec and Ontario showed that the non-central moments of order from one to six are scaling with the basin area. This empirical evidence was used in defining the hydrologically similar basins (i.e., homogeneous flood regions), and in selecting a suitable regional distribution function for the estimation of flood quantiles. It was observed that the grouping of homogeneous basins as proposed in this study formed well-defined geographical regions with distinct climatic characteristics. Further, it was recommended that the selection of regional probability distribution and the corresponding parameter estimation method should be made such that the scaling properties of the flood series were preserved. The improved estimates of the statistical moments and flood quantiles for unguaged sites have indicated the superiority of the proposed approach as compared to those values given by existing methods.
Odry, Jean. "Prédétermination des débits de crues extrêmes en sites non jaugés : régionalisation de la méthode par simulation SHYREG." Thesis, Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0424/document.
Повний текст джерелаFlood hazard estimation in ungauged sites presents a major challenge for risk management. The complexity of the phenomenon arises from both the need for a multivariate approach (estimation of different flood characteristics: peak flow, volume, duration ...), and for an approach which offers a reasonable extrapolation of extreme events. The SHYREG method is based on the simulation of flood scenarios and presents these benefits. It has been evaluated during the ANR ExtraFlo project. It showed good performance in both accuracy and stability when calibrated against local discharge data. However, weaknesses have been identified when implemented in ungauged sites.The objective of the present thesis is to develop the method in order to improve the SHYREG performances in ungauged sites. Two kinds of modifications were implemented. First, the calibration of the method in gauged sites was reviewed. The main idea was to integrate more data and to take more into account the coherence between simulated discharges in different sites. Then, diverse regionalisation schemes extracted from the scientific literature were considered. Their application demonstrated the necessity to exploit information from nearby sites and the physical properties of the catchments. Finally, a version which realises the regionalisation simultaneously to the calibration has been selected. Its comparison with other method showed the quality of this new version of SHYREG
Charbonnel, Anaïs. "Influence multi-échelle des facteurs environnementaux dans la répartition du Desman des Pyrénées (Galemys pyrenaicus) en France." Phd thesis, Toulouse, INPT, 2015. http://oatao.univ-toulouse.fr/14261/1/Charbonnel.pdf.
Повний текст джерелаGhorbel, Ben Abid Manel. "Contamination métallique issue des déchets de l'ancien site minier de Jebel Ressas : modélisation des mécanismes de transfert et conception de cartes d'aléa post-mine dans un contexte carbonaté et sous un climat semi-aride. Evaluation du risque pour la santé humaine." Phd thesis, Université Paul Sabatier - Toulouse III, 2012. http://tel.archives-ouvertes.fr/tel-00760685.
Повний текст джерелаFlaux, Clément. "Paléo-environnements littoraux Holocène du lac Maryut, nord-ouest du delta du Nil, Egypte." Thesis, Aix-Marseille, 2012. http://www.theses.fr/2012AIXM3011/document.
Повний текст джерелаThe ancient city of Alexandria was founded upon a narrow beach ridge, washed by the Maryut to the south. This Nile delta lagoon has been at the heart of the industrial and commercial economies of the city from Antiquity through to present day. Against the backdrop of this rich geoarchaeological context, the aim of this coastal geomorphology thesis is to elucidate the environmental history of the Maryut region.We have reconstructed the hydrological and geographical evolution of the lagoon during the Holocene using: (1) bio-sedimentology of radiocarbon-dated sediment archives; and (2) strontium isotopes in ostracod shells. The Maryut basin was transgressed by the sea around 7.5 ka cal. BP. Progressively, Nile inputs became dominant in the lagoon's hydrological budget, concomitant with the coastal progradation of the delta. After 5.5 ka cal. BP, our data attest to a gradual return to dominant marine conditions, which we link to a reduction in Nile flow in the context of the end of the African Humid Period. This marine lagoon seems to have been perennial until 3 ka cal. BP before Nile inflow became dominant, from the 3rd millennium BP until 0.8-0.9 ka cal. BP. The sediment archives and the historical data support an important retraction of the waterbody around 1 ka cal. BP, recorded by evaporite deposits. This was followed by a new highstand around 0.7 ka cal. BP before a retraction centred on 0.3-0.2 ka cal. BP. Since around 2000 years, this contrasting environmental history is correlated with phases of agriculture peaks and recessions and shows the increasing impact of irrigation practices on the functioning of the Maryut, located at the end of the hydrological conveyor
Hartung, Alexander. "Konzept zur Ermittlung langfristiger hydrologischer Standortbedingungen von Fluss und Grundwasser in Auenwäldern." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2003. http://nbn-resolving.de/urn:nbn:de:swb:14-1060177479031-87945.
Повний текст джерелаThe present dissertation aims at a detailed analysis and description of the long-term abiotic site conditions (river flow and groundwater) for the floodplain area under investigation, namely a hardwood forest in the nature reserve "Saalberghau" on the Middle Elbe close to the town Dessau. For this purpose, firstly a general concept which covers the modelling of the surface water and groundwater regime as well as a statistical interpretation of these two interconnected regimes is developed. It is assumed that only a synthesis of those separate modules can form a sufficient basis for a cohering analysis and description of the complex dynamics of these two regimes in floodplain forests by means of objective statistic parameters. Furthermore, only longterm statements can take into account the age spectrum of the hardwood stand
Négrel, Jean. "Estimation du débit des fleuves à partir de mesures satellitaires des variables de surface sans mesures in situ." Thesis, Montpellier 2, 2011. http://www.theses.fr/2011MON20239/document.
Повний текст джерелаThe water issue is currently a major challenge for our societies. Even if water is a renewable resource, its natural cycle supports great stresses, both human activity and climate change.River discharge is a key variable of the water cycle, whose quantification requires heavy field measurements. Therefore the global monitoring of river discharge remains problematic and satellite remote sensing techniques could be a major asset. Earth Observation radar techniques are currently limited to the measurement of surface variables and cannot measure river bottom hydraulic parameters. The current study proposes a method to estimate these parameters from surface variables, in order to estimate the river discharge. This method has been validated on exact simulated data and its robustness to measurement noise has been studied on noisy simulated data and on real data.The second part of this work explores the abilities of radar along-track interferometry to measure river surface velocity. Velocity measurements carried out on the Rhône river during an airborne campaign (ONERA-Cemagref) show a strong consistency with ADCP field measurements. M4S backscattering model, tested in the framework of this study, is poorly adapted to river scenes : it appears to be extremely sensitive to wind intensity which could be explained by a poor modeling of surface roughness. As part of the SWOT mission program (NASA-CNES) a method allowing in situ characterization of river surface roughness has been developed. It was validated under laboratory controlled conditions. It was implemented on the Rhône river to characterize water surface and quantify the influence of wind intensity on the water surface roughness parameters
Yolcubal, Irfan. "In-situ monitoring of microbial activity and biodegradation during solute transport in porous media." Diss., The University of Arizona, 2001. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_2001_290_sip1_w.pdf&type=application/pdf.
Повний текст джерелаAlter, Stacie Ratcliff. "Use of Biotracer Tests to Evaluate the Impact of Enhanced-Solubilization Flushing on In-Situ Biodegradation." Thesis, The University of Arizona, 2000. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_etd_hy0019_m_sip1_w.pdf&type=application/pdf.
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