singapore s hydrohub for water resources research

... datasets Increases our chances of obtaining independent datasets for validation our models Field measurements Spatial measurements – using satellite datasets (L1, L2, L3, L4) Advanced Processed ... within atmospheric boundary layers  Evapotranspiration studies, transpiration, groundwater studies  http://www.itc.nl/Pub/WRS/WRS-Earth-observation -s ites/EOS-Botswana-Kalahari-site.html : ... There is growing free datasets prepared for hydrologic and water resources modelling worldwide Already prepared datasets that can be easily imported into our MODELS Datasets can reduce the time spend...

Ngày tải lên: 27/08/2014, 23:46

... exists, is a 'toothless dog' as it is just an advisory organ This is unhealthy to our water resources as well as our environment as a whole CONCLUSIONS The need for good quality water in sufficient ... requires comprehensive legal and administrative framework So, the objective of this paper was to assess the efficacy of water laws of Tanzania in sustaining water resources management WATER RESOURCES ... technical staffs that would survey and produce databases for various aspects of water resources and also developing infrastructure It is also a high time now to welcome private investment in water resources...

Ngày tải lên: 05/09/2013, 08:40

... modeling soil -water, soil-atmosphere, and soil-subsoil processes She has participated in several research projects funded by the European Commission, the European Space Agency, and the Spanish Ministry ... a research assistant at University of Washington, Seattle (1994–1997), and an associate professor at University of Catania, Italy (1998–2002) Professor Vagliasindi s main research interests are ... Italiana Professor Rossi is a member of several international associations (Hydraulics Research IAHR, Water Resources IWRA, EWRA, Water History IWHA, Irrigation and Drainage ICID), of Associazione...

Ngày tải lên: 11/08/2014, 17:22

... periods occur, is the recourse to marginal water resources, such as treated wastewater, saline or brackish waters, and deep ground waters Several potential applications for these unconventional water ... drinkable water can justify the costs For example, the system can have sustainable costs if it eliminates or limits the need to use resources located at significant distances In new developments, instead, ... These barriers are also adjusted to industrial utilizations and effluent disposal into public sites such as lakes, flowing streams and creeks, recreation reservoirs, and natural reserve sites Effluent...

Ngày tải lên: 11/08/2014, 17:22

... seasons as well as the use of the subsurface space for storing surface or subsurface water The existence of aquifers over ample areas of a basin adds to the benefits of water storage those of distribution ... Planning for Water Resources of water users can work in most cases and the instauration of Water User Associations will work to make irrigation systems more equitable (Shah et al., 2000; Rao 2000) Some ... performance is also required to convince all stakeholders of ACU s effectiveness in water- related problems: governments, water agencies, and other public administrations and users As discussed...

Ngày tải lên: 11/08/2014, 17:22

... Midwestern streams flooded including the Mississippi, Missouri, Kansas, Illinois, Des Moines, and Wisconsin rivers The floods displaced over 70,000 people Nearly 50,000 homes were damaged or destroyed, ... options for managing and developing reliable, adequate, and sustainable supplies of water for their customers for the next 50 to 100 years.” It is called “Decision Support System for Sustainable Water ... include issues that may appear to have lesser impacts to the system such as distribution system leaks or conservation practices Some components of the balance may be considered on both sides of the...

Ngày tải lên: 11/08/2014, 17:22

... water resource systems There exist various tools for the analysis of the management of water resource systems Some consist of specific models specially developed for the study of a particular system ... selected measures The results obtained from the foregoing measures provide the information necessary for determining the effectiveness and consequences of the possible decisions Those responsible ... of water supply, they are normally constructed to supply water for industrial purposes • Artificial surface storage elements: These are basically reservoirs or water deposits used to store surplus...

Ngày tải lên: 11/08/2014, 17:22

... a Spanish Indicator System has been established in order to assess the quantitative status of water resources in the different exploitation systems existing in each river basin district The Spanish ... reservoirs, flow river gauges, precipitation, and aquifer water level) for each exploitation system These parameters are used to assess the quantitative status of water resources in each system, ... both approaches should be used The Water Act foresees proper measures for strong drought situations These measures are determined by the Spanish government and are focused on the use of the public...

Ngày tải lên: 11/08/2014, 17:22

... because it is the simplest and one that most readers are familiar with, and despite its limitations, it is a standard that is readily available for most watersheds in the United States The map-based ... American Water Resources Association; Chapter 13 © Elsevier Science; Chapter 14 © American Society for Photogrammetry and Remote Sensing ASSESSING THE PERFORMANCE OF AUTOMATED WATERSHED SEGMENTATION ... American Water Resources Association; Chapter 13 © Elsevier Science; Chapter 14 © American Society for Photogrammetry and Remote Sensing ASSESSING THE PERFORMANCE OF AUTOMATED WATERSHED SEGMENTATION...

Ngày tải lên: 12/08/2014, 03:20

... areas A schematic outline of the BGIS is shown in Figure 3.4 Source Data Sets Source data sets are grid DEMs and DLGs of river courses These data sets, produced by government agencies such as the ... courses (Figure 3.5) TIN-DEMs Generating System The two data sets made by the preprocessing systems are input into these systems and the three data sets noted in the TIN-DEMs DATA STRUCTURE section ... Chapters 1, 3, & © American Water Resources Association; Chapter 13 © Elsevier Science; Chapter 14 © American Society for Photogrammetry and Remote Sensing 34 GIS FOR WATER RESOURCES AND WATERSHED...

Ngày tải lên: 12/08/2014, 03:20

... MORPHOLOGY USING GIS-BASED WATERSHED ANALYSIS 59 Table 5.3 Results of Stepwise Backwards Multiple Linear Regression Analysis for Channel CrossSectional Area as a Function of Watershed Variablesa Case ... variables and watershed parameters were investigated using simple linear regression analysis Having found strong relationships between these variable sets, multiple regression analysis was employed ... Francis Chapters 1, 3, & © American Water Resources Association; Chapter 13 © Elsevier Science; Chapter 14 © American Society for Photogrammetry and Remote Sensing 58 GIS FOR WATER RESOURCES AND WATERSHED...

Ngày tải lên: 12/08/2014, 03:20

... characteristics under consideration Often the CSA value is also used to represent different degrees of watershed segmentation and drainage network densities to address scaling issues At a small scale, ... et al., Eds., Proceedings of the AWRA Annual Symposium, GIS and Water Resources American Water Resources Association Symposium, Herndon, VA, TPS–96–3 Goodrich, D.C., P.J Starks, R.R Schnabel, ... digital State Soil Geographic Database (STATSGO) The STATSGO database contains the soil attributes for the county soil survey maps From this information a basic soil coverage and derived soil attribute...

Ngày tải lên: 12/08/2014, 03:20

... aAEZs Major FAO Soil Groupingd Luvisols Luvisols Acrisols Ferralsols Lithosols Ferralsols Luvisols Nitosols Arenosols Acrisols Lithosols Ferralsols Nitosols Gleysols Arenosols Acrisols Ferralsols ... characteristics of areas with insignificant farmlands at valley fringes (class 9) and in valley bottoms (class 12) are similar to those areas with dense and very dense forest on uplands (classes and ... is in the toposequential position of the area under consideration The vegetation of these classes mostly consists of dense and vigorous evergreen trees, and dense and vigorous shrubs Grasses...

Ngày tải lên: 12/08/2014, 03:20

... details of the statistical tests are given in García-Martinó (1996) RESULTS AND DISCUSSION Four parameters consistently produced the best overall results for the GIS-based models: DD is total ... and Remote Sensing 104 GIS FOR WATER RESOURCES AND WATERSHED MANAGEMENT Table 9.1 Definitions of Watershed Parameters Used in Correlation and Regression Analyses CLIMATE BASED PARAMETERS: MMYR = ... American Society for Photogrammetry and Remote Sensing 106 GIS FOR WATER RESOURCES AND WATERSHED MANAGEMENT Table 9.2 Parameters and Comparative Statistics for Selected GIS and Non-GIS Models Model...

Ngày tải lên: 12/08/2014, 03:20

... Water Resources Association; Chapter 13 © Elsevier Science; Chapter 14 © American Society for Photogrammetry and Remote Sensing 118 GIS FOR WATER RESOURCES AND WATERSHED MANAGEMENT REFERENCES ... & © American Water Resources Association; Chapter 13 © Elsevier Science; Chapter 14 © American Society for Photogrammetry and Remote Sensing 114 GIS FOR WATER RESOURCES AND WATERSHED MANAGEMENT ... The six APES basins and their subbasins Second, all North Carolina basins and subbasins were digitized by the Research Triangle Institute and compared closely with the U .S Geological Survey subbasins...

Ngày tải lên: 12/08/2014, 03:20

... analysis because these systems provide an excellent platform for development and mapping of point (e.g., slump sites), line (e.g., streams), and polygon (e.g., forest stands) data as well as for spatial ... the slope in these deeply incised channels would enhance soil slumps After nearly 100 years, this watershed system still expresses, through excessive channel erosion, slumpage, and the resulting ... relationships in the Nemadji Yet no definitive results exist to specifically address the actual relationships of water flow and subsequent soil mass wasting processes More extensive streamflow...

Ngày tải lên: 12/08/2014, 03:20

... I I Processing History Processing History Processing History Processing History Revisions 1: Revisions 2: Revisions 3: Revisions 4: Misc Notes 1: Misc Notes 2: Misc Notes 3: Misc Notes 4: 1: 2: ... classified separately from points because they also associate with other station types such as nests and colony sectors The use of labels helps to interpret associations For example, the association ... DATA SERVER SYSTEM A data server system is a computing platform that hosts databases It may include computers, operating systems, networks, database management systems, geographic information systems,...

Ngày tải lên: 12/08/2014, 03:20

... habitat losses at the river basin scale, but was nevertheless strongly associated with habitat losses in tributary streams (channel widths

Ngày tải lên: 12/08/2014, 03:20

... DEMs, they are usually displayed as a raster image which consists of strings and groups of raster cells with numeric codes or colors that distinguish the network and subcatchments For these images ... Francis Chapters 1, 3, & © American Water Resources Association; Chapter 13 © Elsevier Science; Chapter 14 © American Society for Photogrammetry and Remote Sensing 212 GIS FOR WATER RESOURCES AND WATERSHED ... segments and parameterizes watersheds from DEMs for water resources, hydraulic, and hydrologic applications (Garbrecht and Martz, 1999b, 2000) TREATMENT OF SPURIOUS DEPRESSIONS IN DEMS Depressions...

Ngày tải lên: 12/08/2014, 03:20

... Francis Chapters 1, 3, & © American Water Resources Association; Chapter 13 © Elsevier Science; Chapter 14 © American Society for Photogrammetry and Remote Sensing 234 GIS FOR WATER RESOURCES AND WATERSHED ... natural resources, and site activities which are routinely identified on aerial photographs by skilled image analysts for characterizing waste disposal sites OVERVIEW Hazardous Waste Site Analyses ... Water Resources Association; Chapter 13 © Elsevier Science; Chapter 14 © American Society for Photogrammetry and Remote Sensing 224 GIS FOR WATER RESOURCES AND WATERSHED MANAGEMENT Figure 18.2 Sample...

Ngày tải lên: 12/08/2014, 03:20