Search

Search Results

• 1. [Article] MidCoast sixth field watershed assessment : final report

  The study area for this assessment is composed of the Alsea, Salmon, Siletz, Yachats, and Yaquina River watersheds and those watersheds that drain directly to the ocean between Cascade Head and Cape Creek ...

  Citation × Citation Citation Abstract Copy Title: MidCoast sixth field watershed assessment : final report Author: Garono, Ralph J., Brophy, Laura The study area for this assessment is composed of the Alsea, Salmon, Siletz, Yachats, and Yaquina River watersheds and those watersheds that drain directly to the ocean between Cascade Head and Cape Creek at Heceta Head (Ocean Tributaries). Wherever possible, 1:24,000 uniform scale geographic information system (GIS) data that covered the entire study area were used in this assessment. Goals of this study include, (1) a summary of current conditions for each 6th field watershed; and (2) recommendations for monitoring and management actions for prioritized 6th field watersheds. Title: MidCoast sixth field watershed assessment : final report Author: Garono, Ralph J., Brophy, Laura The study area for this assessment is composed of the Alsea, Salmon, Siletz, Yachats, and Yaquina River watersheds and those watersheds that drain directly to the ocean between Cascade Head and Cape Creek at Heceta Head (Ocean Tributaries). Wherever possible, 1:24,000 uniform scale geographic information system (GIS) data that covered the entire study area were used in this assessment. Goals of this study include, (1) a summary of current conditions for each 6th field watershed; and (2) recommendations for monitoring and management actions for prioritized 6th field watersheds. Close

• 2. [Article] Classifying Oregon lake-watershed ecosystems for regional water resources assessment

  Natural lake-watershed ecosystems in Oregon compose a diverse and valuable assemblage of land and water resources. With an increasing demand on lakes for recreation, water supplies, and aesthetic values ...

  Citation × Citation Citation Abstract Copy Title: Classifying Oregon lake-watershed ecosystems for regional water resources assessment Author: Jones, Randall Alan Year: 1987 Natural lake-watershed ecosystems in Oregon compose a diverse and valuable assemblage of land and water resources. With an increasing demand on lakes for recreation, water supplies, and aesthetic values and an increase in available data on Oregon lake systems, there is a need for applicable and timely scientific water management information about lake conditions statewide. This thesis is an attempt to summarize some of the data collected on natural Oregon lake-watershed ecosystems. The purpose of the thesis is to identify the most typical natural systems out of an initial data base of twenty-four variables, measured over ninety-eight lake-watershed ecosystems. The selected variables are reduced to five common factors using principal components factor analysis. K-means cluster analysis is used to create similar groups of lake systems. These groups are compared to ecoregions in Oregon and a typical, representative lake ecosystem is identified for each group. Results show that several lake systems of the state are unique. Title: Classifying Oregon lake-watershed ecosystems for regional water resources assessment Author: Jones, Randall Alan Year: 1987 Natural lake-watershed ecosystems in Oregon compose a diverse and valuable assemblage of land and water resources. With an increasing demand on lakes for recreation, water supplies, and aesthetic values and an increase in available data on Oregon lake systems, there is a need for applicable and timely scientific water management information about lake conditions statewide. This thesis is an attempt to summarize some of the data collected on natural Oregon lake-watershed ecosystems. The purpose of the thesis is to identify the most typical natural systems out of an initial data base of twenty-four variables, measured over ninety-eight lake-watershed ecosystems. The selected variables are reduced to five common factors using principal components factor analysis. K-means cluster analysis is used to create similar groups of lake systems. These groups are compared to ecoregions in Oregon and a typical, representative lake ecosystem is identified for each group. Results show that several lake systems of the state are unique. Close

• 3. [Article] Spatial identification and optimization of upland wetlands in agricultural watersheds

  To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by Elsevier ...

  Citation × Citation Citation Abstract Copy Title: Spatial identification and optimization of upland wetlands in agricultural watersheds Author: Barr, Robert C., Babbar-Sebens, Meghna, Anderson, Milo, Tedesco, Lenore P. To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by Elsevier and can be found at: http://www.elsevier.com/. Title: Spatial identification and optimization of upland wetlands in agricultural watersheds Author: Barr, Robert C., Babbar-Sebens, Meghna, Anderson, Milo, Tedesco, Lenore P. To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by Elsevier and can be found at: http://www.elsevier.com/. Close

• 4. [Article] Will wetlands restoration plans today still be effective tomorrow? Evaluation of performance of potential wetlands for peak flow reduction in future climate scenarios in the Eagle Creek Watershed, IN

  Global climate change is expected to exaggerate the severity of floods and droughts and increase the frequency of extreme streamflow events in the Midwestern United States. Managing these projected impacts ...

  Citation × Citation Citation Abstract Copy Title: Will wetlands restoration plans today still be effective tomorrow? Evaluation of performance of potential wetlands for peak flow reduction in future climate scenarios in the Eagle Creek Watershed, IN Author: Walters, Kelli M. Global climate change is expected to exaggerate the severity of floods and droughts and increase the frequency of extreme streamflow events in the Midwestern United States. Managing these projected impacts poses a major challenge for water resources, conservation, and land use management. Wetlands have been considered as a conservation strategy and work to increase the capacity of watersheds by storing runoff upstream. The implementation of wetlands, especially in tile-drained agricultural watersheds, can reduce peak flows and help mitigate the anticipated impacts of climate change. The goal of this study was to evaluate the long-term performance of wetlands to reduce peak flows in future climate scenarios in the Eagle Creek Watershed in Indiana, as well as to establish a methodology to incorporate climate change into hydrological models to conduct better long-term land management studies and decisions. The Soil and Water Assessment Tool (SWAT) model was forced with bias corrected climate projections from the North American Regional Climate Change Assessment Program (NARCCAP) to evaluate the impacts of climate change on watershed hydrology and the ability of wetlands to reduce peak flows. Long-term monthly streamflow results predicted a slight increase in streamflow in the winter and a slight decrease in the summer from the past (1971-2000) to future (2041-2070) time periods. About half of the climate realizations produced an increase in the Q05 (5% exceedance flow) value and half a decrease, but all predictions agreed that high flow events will increase in frequency in the winter and decrease in the spring and summer. No-flow events, although found to be over-predicted by the hydrological model, showed an increase from the past to the future for all climate realizations. Results from the wetland analysis showed that if all potential wetlands identified in a previous study are installed in the watershed, maximum peak flow reductions of around 20-50 m³/s for the past and future, as well as decreased frequency of extreme events, can be seen. Wetlands proved to be a robust solution for peak flow reduction, producing consistent reductions across all climate projections for both the past and future time periods. Title: Will wetlands restoration plans today still be effective tomorrow? Evaluation of performance of potential wetlands for peak flow reduction in future climate scenarios in the Eagle Creek Watershed, IN Author: Walters, Kelli M. Global climate change is expected to exaggerate the severity of floods and droughts and increase the frequency of extreme streamflow events in the Midwestern United States. Managing these projected impacts poses a major challenge for water resources, conservation, and land use management. Wetlands have been considered as a conservation strategy and work to increase the capacity of watersheds by storing runoff upstream. The implementation of wetlands, especially in tile-drained agricultural watersheds, can reduce peak flows and help mitigate the anticipated impacts of climate change. The goal of this study was to evaluate the long-term performance of wetlands to reduce peak flows in future climate scenarios in the Eagle Creek Watershed in Indiana, as well as to establish a methodology to incorporate climate change into hydrological models to conduct better long-term land management studies and decisions. The Soil and Water Assessment Tool (SWAT) model was forced with bias corrected climate projections from the North American Regional Climate Change Assessment Program (NARCCAP) to evaluate the impacts of climate change on watershed hydrology and the ability of wetlands to reduce peak flows. Long-term monthly streamflow results predicted a slight increase in streamflow in the winter and a slight decrease in the summer from the past (1971-2000) to future (2041-2070) time periods. About half of the climate realizations produced an increase in the Q05 (5% exceedance flow) value and half a decrease, but all predictions agreed that high flow events will increase in frequency in the winter and decrease in the spring and summer. No-flow events, although found to be over-predicted by the hydrological model, showed an increase from the past to the future for all climate realizations. Results from the wetland analysis showed that if all potential wetlands identified in a previous study are installed in the watershed, maximum peak flow reductions of around 20-50 m³/s for the past and future, as well as decreased frequency of extreme events, can be seen. Wetlands proved to be a robust solution for peak flow reduction, producing consistent reductions across all climate projections for both the past and future time periods. Close

• 5. [Article] The Bull Run River–Reservoir System Model

  The Bull Run watershed is located 41.8 kilometers east of Portland, Oregon in the Mt. Hood National Forest and consists of two reservoirs supplying drinking water to over 840,000 people in the Portland ...

  Citation × Citation Citation Abstract Copy Title: The Bull Run River–Reservoir System Model Author: Annear, Robert Leslie, Wells, Scott A. Year: 2002 The Bull Run watershed is located 41.8 kilometers east of Portland, Oregon in the Mt. Hood National Forest and consists of two reservoirs supplying drinking water to over 840,000 people in the Portland metropolitan area. In March 1998 Steelhead and Spring Chinook were listed as threatened in the Lower Columbia basin under the Endangered Species Act. Historical reservoir operations during the summer released no water downstream resulting in stream temperatures exceeding the state water quality standard for salmonids. CE-QUAL-W2 Version 3 is a two-dimensional water quality and hydrodynamic model capable of modeling watersheds with interconnected rivers, reservoirs and estuaries. CE-QUAL-W2 Version 3 was used to model temperature in the reservoirs and river to investigate management strategies to meet water demand and fish habitat requirements. Management strategies evaluated included adding selective withdrawal, increasing reservoir size, constructing a new water supply reservoir, and altering selective withdrawal operations from historical patterns. Title: The Bull Run River–Reservoir System Model Author: Annear, Robert Leslie, Wells, Scott A. Year: 2002 The Bull Run watershed is located 41.8 kilometers east of Portland, Oregon in the Mt. Hood National Forest and consists of two reservoirs supplying drinking water to over 840,000 people in the Portland metropolitan area. In March 1998 Steelhead and Spring Chinook were listed as threatened in the Lower Columbia basin under the Endangered Species Act. Historical reservoir operations during the summer released no water downstream resulting in stream temperatures exceeding the state water quality standard for salmonids. CE-QUAL-W2 Version 3 is a two-dimensional water quality and hydrodynamic model capable of modeling watersheds with interconnected rivers, reservoirs and estuaries. CE-QUAL-W2 Version 3 was used to model temperature in the reservoirs and river to investigate management strategies to meet water demand and fish habitat requirements. Management strategies evaluated included adding selective withdrawal, increasing reservoir size, constructing a new water supply reservoir, and altering selective withdrawal operations from historical patterns. Close

• 6. [Article] Streamflow Modeling of Johnson Creek Subwatersheds Using the Precipitation Runoff Modeling System

  Johnson Creek, in the Portland, Oregon metropolitan region, has several pollutants on the U.S. Environmental Protection Agency’s (EPA) 303(d) list including excess heat, low dissolved oxygen, and harmful ...

  Citation × Citation Citation Abstract Copy Title: Streamflow Modeling of Johnson Creek Subwatersheds Using the Precipitation Runoff Modeling System Author: Malone, Theophilus M Year: 2014 Johnson Creek, in the Portland, Oregon metropolitan region, has several pollutants on the U.S. Environmental Protection Agency’s (EPA) 303(d) list including excess heat, low dissolved oxygen, and harmful bacteria. Understanding streamflow response to precipitation events is an important component to evaluating water quality trends and calculating the Total Maximum Daily Load (TMDL) for pollutants of concern. Investigating the streamflow-precipitation relationship on the subwatershed scale can give insight to the hydrologic response of a given watershed. However, developing rating curves for several subwatersheds can be cost and time prohibitive. The objective of this project was to develop a hydrologic model using the Precipitation Runoff Modeling System (PRMS), developed by the United States Geological Survey (USGS) to validate streamflow estimates for subwatersheds lacking a significant period of record. ESRI’s ArcMap, a geographic information system (GIS), was used to characterize the target drainage basins and extract basin-specific parameters for upper watersheds of Johnson Creek. The Johnson Creek Upper Watershed (JCUW) model was calibrated to an existing streamflow gage at Regner Road, in Gresham, Oregon. Calibrated parameters were substituted into a second PRMS model characterizing the Sunshine Creek Subwatershed, which lies within the JCUW. The Sunshine Creek model was used to validate a flow time-series derived from a pressure transducer and a rating curve. Title: Streamflow Modeling of Johnson Creek Subwatersheds Using the Precipitation Runoff Modeling System Author: Malone, Theophilus M Year: 2014 Johnson Creek, in the Portland, Oregon metropolitan region, has several pollutants on the U.S. Environmental Protection Agency’s (EPA) 303(d) list including excess heat, low dissolved oxygen, and harmful bacteria. Understanding streamflow response to precipitation events is an important component to evaluating water quality trends and calculating the Total Maximum Daily Load (TMDL) for pollutants of concern. Investigating the streamflow-precipitation relationship on the subwatershed scale can give insight to the hydrologic response of a given watershed. However, developing rating curves for several subwatersheds can be cost and time prohibitive. The objective of this project was to develop a hydrologic model using the Precipitation Runoff Modeling System (PRMS), developed by the United States Geological Survey (USGS) to validate streamflow estimates for subwatersheds lacking a significant period of record. ESRI’s ArcMap, a geographic information system (GIS), was used to characterize the target drainage basins and extract basin-specific parameters for upper watersheds of Johnson Creek. The Johnson Creek Upper Watershed (JCUW) model was calibrated to an existing streamflow gage at Regner Road, in Gresham, Oregon. Calibrated parameters were substituted into a second PRMS model characterizing the Sunshine Creek Subwatershed, which lies within the JCUW. The Sunshine Creek model was used to validate a flow time-series derived from a pressure transducer and a rating curve. Close

• 7. [Image] Jordan - Summary of Aquifer Charcteristics

  	Citation × Citation Citation Abstract Copy Title: Jordan - Summary of Aquifer Charcteristics Year: 1982 Title: Jordan - Summary of Aquifer Charcteristics Year: 1982 Close

• 8. [Image] Problems of Water in Iran (Vol. 1-2)

  	Citation × Citation Citation Abstract Copy Title: Problems of Water in Iran (Vol. 1-2) Year: 2008 Title: Problems of Water in Iran (Vol. 1-2) Year: 2008 Close

• 9. [Image] Yarkon River - Drowning in Sewage

  	Citation × Citation Citation Abstract Copy Title: Yarkon River - Drowning in Sewage Year: 1987 Title: Yarkon River - Drowning in Sewage Year: 1987 Close

• 10. [Image] Miscellaneous -- appendices?

  	Citation × Citation Citation Abstract Copy Title: Miscellaneous -- appendices? Title: Miscellaneous -- appendices? Close

• 11. [Image] Jordan River Report Appendices -- Originals

  	Citation × Citation Citation Abstract Copy Title: Jordan River Report Appendices -- Originals Title: Jordan River Report Appendices -- Originals Close

• 12. [Image] Volume 1, Proceedings

  	Citation × Citation Citation Abstract Copy Title: Volume 1, Proceedings Year: 1973 Title: Volume 1, Proceedings Year: 1973 Close

• 13. [Image] International Hydrological Programme

  	Citation × Citation Citation Abstract Copy Title: International Hydrological Programme Year: 1994 Title: International Hydrological Programme Year: 1994 Close

• 14. [Image] Letter to Martin Sherman, Tzomet Party - In Reference to Letter of Thomas Naff of Nov. 20, 1991

  	Citation × Citation Citation Abstract Copy Title: Letter to Martin Sherman, Tzomet Party - In Reference to Letter of Thomas Naff of Nov. 20, 1991 Year: 1991 Title: Letter to Martin Sherman, Tzomet Party - In Reference to Letter of Thomas Naff of Nov. 20, 1991 Year: 1991 Close

• 15. [Image] Hydrologic Data Collection for River Basin Management

  	Citation × Citation Citation Abstract Copy Title: Hydrologic Data Collection for River Basin Management Year: 2008 Title: Hydrologic Data Collection for River Basin Management Year: 2008 Close

• 16. [Image] Recueilde Statistiques Libanaises

  	Citation × Citation Citation Abstract Copy Title: Recueilde Statistiques Libanaises Year: 1969 Title: Recueilde Statistiques Libanaises Year: 1969 Close

• 17. [Image] Discharge of Turkish Rivers into the Black Sea

  	Citation × Citation Citation Abstract Copy Title: Discharge of Turkish Rivers into the Black Sea Year: 1984 Title: Discharge of Turkish Rivers into the Black Sea Year: 1984 Close

• 18. [Image] Water-Rock Interaction

  	Citation × Citation Citation Abstract Copy Title: Water-Rock Interaction Year: 1992 Title: Water-Rock Interaction Year: 1992 Close

• 19. [Image] Tracer Hydrology

  	Citation × Citation Citation Abstract Copy Title: Tracer Hydrology Year: 1993 Title: Tracer Hydrology Year: 1993 Close

• 20. [Image] Well Logging in Hydrogeology

  	Citation × Citation Citation Abstract Copy Title: Well Logging in Hydrogeology Author: Chapellier, Dominique Year: 1992 Title: Well Logging in Hydrogeology Author: Chapellier, Dominique Year: 1992 Close

• 21. [Image] L'Oronte, Etude de Fleuve

  	Citation × Citation Citation Abstract Copy Title: L'Oronte, Etude de Fleuve Year: 1940 Title: L'Oronte, Etude de Fleuve Year: 1940 Close

• 22. [Image] Zonation du Systeme Karstique

  	Citation × Citation Citation Abstract Copy Title: Zonation du Systeme Karstique Year: 2008 Title: Zonation du Systeme Karstique Year: 2008 Close

• 23. [Image] Profiles

  	Citation × Citation Citation Abstract Copy Title: Profiles Year: 1991 Title: Profiles Year: 1991 Close

• 24. [Image] Biska Alluvial Valley, Algeria

  	Citation × Citation Citation Abstract Copy Title: Biska Alluvial Valley, Algeria Year: 1975 Title: Biska Alluvial Valley, Algeria Year: 1975 Close

• 25. [Image] Water Quantity and Availability

  	Citation × Citation Citation Abstract Copy Title: Water Quantity and Availability Author: Unesco Year: 1990 Title: Water Quantity and Availability Author: Unesco Year: 1990 Close

• 26. [Image] Israel - Aquifers

  	Citation × Citation Citation Abstract Copy Title: Israel - Aquifers Year: 1982 Title: Israel - Aquifers Year: 1982 Close

• 27. [Image] Resolution of International Water Conflicts - A Comparative Study

  	Citation × Citation Citation Abstract Copy Title: Resolution of International Water Conflicts - A Comparative Study Author: Sabadell, J. Eleonora Year: 1985 Title: Resolution of International Water Conflicts - A Comparative Study Author: Sabadell, J. Eleonora Year: 1985 Close

• 28. [Image] Water Recovery and Utilization on the Island of Cyrpus

  	Citation × Citation Citation Abstract Copy Title: Water Recovery and Utilization on the Island of Cyrpus Year: 1985 Title: Water Recovery and Utilization on the Island of Cyrpus Year: 1985 Close

• 29. [Image] Optimal Utilization of the Water Resources of the Euphrates in Iraq

  	Citation × Citation Citation Abstract Copy Title: Optimal Utilization of the Water Resources of the Euphrates in Iraq Year: 1979 Title: Optimal Utilization of the Water Resources of the Euphrates in Iraq Year: 1979 Close

• 30. [Image] Ground Water

  	Citation × Citation Citation Abstract Copy Title: Ground Water Year: 1992 Title: Ground Water Year: 1992 Close

• 31. [Image] Development of the Hydrological Subsystem of the Water Management Information System in Hungary

  	Citation × Citation Citation Abstract Copy Title: Development of the Hydrological Subsystem of the Water Management Information System in Hungary Year: 2008 Title: Development of the Hydrological Subsystem of the Water Management Information System in Hungary Year: 2008 Close

• 32. [Image] Literaturliste zu "Blut fur Wasser"

  	Citation × Citation Citation Abstract Copy Title: Literaturliste zu "Blut fur Wasser" Author: Meining, Stefan Year: 2008 Title: Literaturliste zu "Blut fur Wasser" Author: Meining, Stefan Year: 2008 Close

• 33. [Image] Rapport Teqhnique-Maps

  	Citation × Citation Citation Abstract Copy Title: Rapport Teqhnique-Maps Year: 2008 Title: Rapport Teqhnique-Maps Year: 2008 Close

• 34. [Article] Soil Moisture Gradients and Controls on a Southern Appalachian Hillslope from Drought Through Recharge

  Soil moisture gradients along hillslopes in humid watersheds, although indicated by vegetation gradients and by studies using models, have been difficult to confirm empirically. While soil properties and ...

  Citation × Citation Citation Abstract Copy Title: Soil Moisture Gradients and Controls on a Southern Appalachian Hillslope from Drought Through Recharge Author: Yeakley, J. Alan, Swank, W. T., Swift, L. W., Hornberger, G. M., Shugart, H. H. Year: 1998 Soil moisture gradients along hillslopes in humid watersheds, although indicated by vegetation gradients and by studies using models, have been difficult to confirm empirically. While soil properties and topographic features are the two general physio-graphic factors controlling soil moisture on hillslopes, studies have shown conflicting results regarding which factor is more important. The relative importance of topographic and soil property controls was examined in an upland forested watershed at the Coweeta Hydrologic Laboratory in the southern Appalachian mountains. Soil moisture was measured along a hillslope transect with a mesic-to-xeric forest vegetation gradient over a period spanning precipitation extremes. The hillslope was transect instrumented with a time domain reflectometry (TDR) network at two depths. Soil moisture was measured during a severe autumn drought and subsequent winter precipitation recharge. In the upper soil depth (0-30 cm), moisture gradients persisted throughout the measurement period, and topography exerted dominant control. For the entire root zone (0-90 cm), soil moisture gradients were found only during drought. Control on soil moisture was due to both topography and storage before drought. During and after recharge, variations in soil texture and horizon distribution exerted dominant control on soil moisture content in the root zone (0-90 cm). These results indicate that topographic factors assert more control over hillslope soil moisture during drier periods as drainage progresses, while variations in soil water storage properties are more important during wetter periods. Hillslope soil moisture gradients in southern Appalachian watersheds appear to be restricted to upper soil layers, with deeper hillslope soil moisture gradients occurring only with sufficient drought. Title: Soil Moisture Gradients and Controls on a Southern Appalachian Hillslope from Drought Through Recharge Author: Yeakley, J. Alan, Swank, W. T., Swift, L. W., Hornberger, G. M., Shugart, H. H. Year: 1998 Soil moisture gradients along hillslopes in humid watersheds, although indicated by vegetation gradients and by studies using models, have been difficult to confirm empirically. While soil properties and topographic features are the two general physio-graphic factors controlling soil moisture on hillslopes, studies have shown conflicting results regarding which factor is more important. The relative importance of topographic and soil property controls was examined in an upland forested watershed at the Coweeta Hydrologic Laboratory in the southern Appalachian mountains. Soil moisture was measured along a hillslope transect with a mesic-to-xeric forest vegetation gradient over a period spanning precipitation extremes. The hillslope was transect instrumented with a time domain reflectometry (TDR) network at two depths. Soil moisture was measured during a severe autumn drought and subsequent winter precipitation recharge. In the upper soil depth (0-30 cm), moisture gradients persisted throughout the measurement period, and topography exerted dominant control. For the entire root zone (0-90 cm), soil moisture gradients were found only during drought. Control on soil moisture was due to both topography and storage before drought. During and after recharge, variations in soil texture and horizon distribution exerted dominant control on soil moisture content in the root zone (0-90 cm). These results indicate that topographic factors assert more control over hillslope soil moisture during drier periods as drainage progresses, while variations in soil water storage properties are more important during wetter periods. Hillslope soil moisture gradients in southern Appalachian watersheds appear to be restricted to upper soil layers, with deeper hillslope soil moisture gradients occurring only with sufficient drought. Close

• 35. [Article] Theoretical Basis for the CE-QUAL-W2 River Basin Model

  The primary objective of this research is to integrate a riverine model into the existing W2 code that would provide the capability for modeling entire watersheds. This task was accomplished by the following ...

  Citation × Citation Citation Abstract Copy Title: Theoretical Basis for the CE-QUAL-W2 River Basin Model Author: Wells, Scott A., Cole, Thomas M. Year: 2000 The primary objective of this research is to integrate a riverine model into the existing W2 code that would provide the capability for modeling entire watersheds. This task was accomplished by the following steps: • Formal derivation of governing equations and solution algorithm with general channel slope • Detailed analysis of algorithm for linking branches and smooth implementation of boundary conditions between branches • Algorithm development and changes to basic model code (including branch definitions with slope, slope correction to solution algorithm, transfer of momentum between internal branches) These tasks were performed with the following constraints and initiatives: • Utilize the same solution algorithms as the existing code for hydrodynamics and water quality for the riverine system • Allow momentum transfer between adjacent branches for internal head boundary conditions • Refine the turbulence closure hypothesis for riverine sections Title: Theoretical Basis for the CE-QUAL-W2 River Basin Model Author: Wells, Scott A., Cole, Thomas M. Year: 2000 The primary objective of this research is to integrate a riverine model into the existing W2 code that would provide the capability for modeling entire watersheds. This task was accomplished by the following steps: • Formal derivation of governing equations and solution algorithm with general channel slope • Detailed analysis of algorithm for linking branches and smooth implementation of boundary conditions between branches • Algorithm development and changes to basic model code (including branch definitions with slope, slope correction to solution algorithm, transfer of momentum between internal branches) These tasks were performed with the following constraints and initiatives: • Utilize the same solution algorithms as the existing code for hydrodynamics and water quality for the riverine system • Allow momentum transfer between adjacent branches for internal head boundary conditions • Refine the turbulence closure hypothesis for riverine sections Close

• 36. [Article] Ensemble Prediction and Data Assimilation for Operational Hydrology

  This special section in the Journal of Hydrology will discuss the need for advancing hydrologic ensemble prediction and DA.

  Citation × Citation Citation Abstract Copy Title: Ensemble Prediction and Data Assimilation for Operational Hydrology Author: Seo, Dong-Jun, Liu, Yuqiong, Moradkhani, Hamid, Weerts, Albrecht Year: 2014 This special section in the Journal of Hydrology will discuss the need for advancing hydrologic ensemble prediction and DA. Title: Ensemble Prediction and Data Assimilation for Operational Hydrology Author: Seo, Dong-Jun, Liu, Yuqiong, Moradkhani, Hamid, Weerts, Albrecht Year: 2014 This special section in the Journal of Hydrology will discuss the need for advancing hydrologic ensemble prediction and DA. Close

• 37. [Image] Control of ground-water levels in Cairo, Egypt after the High Dam

  	Citation × Citation Citation Abstract Copy Title: Control of ground-water levels in Cairo, Egypt after the High Dam Year: 1983 Title: Control of ground-water levels in Cairo, Egypt after the High Dam Year: 1983 Close

• 38. [Image] Devlet Su Isleri Bulteni

  	Citation × Citation Citation Abstract Copy Title: Devlet Su Isleri Bulteni Year: 1983 Title: Devlet Su Isleri Bulteni Year: 1983 Close

• 39. [Image] Hydrogeochemistry and Isotope Hydrology of the Ground- and Surface Water in North Jordan

  	Citation × Citation Citation Abstract Copy Title: Hydrogeochemistry and Isotope Hydrology of the Ground- and Surface Water in North Jordan Year: 1985 Title: Hydrogeochemistry and Isotope Hydrology of the Ground- and Surface Water in North Jordan Year: 1985 Close

• 40. [Image] Case History No. 20 - Use of a Model for Determining Optimum Rates of Artificial Recharge of the Cenomarian Aquifers in Beirut, Lebanon

  	Citation × Citation Citation Abstract Copy Title: Case History No. 20 - Use of a Model for Determining Optimum Rates of Artificial Recharge of the Cenomarian Aquifers in Beirut, Lebanon Year: 1982 Title: Case History No. 20 - Use of a Model for Determining Optimum Rates of Artificial Recharge of the Cenomarian Aquifers in Beirut, Lebanon Year: 1982 Close

• 41. [Image] Geomorphological Study of the Littoral Region of Lebanon

  	Citation × Citation Citation Abstract Copy Title: Geomorphological Study of the Littoral Region of Lebanon Author: Sanlaville, Paul Year: 1977 Title: Geomorphological Study of the Littoral Region of Lebanon Author: Sanlaville, Paul Year: 1977 Close

• 42. [Image] Budget of the Surface and Underground Water in Northern Jordan

  	Citation × Citation Citation Abstract Copy Title: Budget of the Surface and Underground Water in Northern Jordan Year: 1992 Title: Budget of the Surface and Underground Water in Northern Jordan Year: 1992 Close

• 43. [Image] Water Management in Egypt

  	Citation × Citation Citation Abstract Copy Title: Water Management in Egypt Year: 1966 Title: Water Management in Egypt Year: 1966 Close

• 44. [Image] General Description and Economic Analysis (Chapter 1)

  	Citation × Citation Citation Abstract Copy Title: General Description and Economic Analysis (Chapter 1) Year: 1954 Title: General Description and Economic Analysis (Chapter 1) Year: 1954 Close

• 45. [Image] Sudan

  	Citation × Citation Citation Abstract Copy Title: Sudan Year: 1976 Title: Sudan Year: 1976 Close

• 46. [Image] Projects for the Increase of the Nile Yield With Special Reference to the Jonglei Project

  	Citation × Citation Citation Abstract Copy Title: Projects for the Increase of the Nile Yield With Special Reference to the Jonglei Project Year: 2008 Title: Projects for the Increase of the Nile Yield With Special Reference to the Jonglei Project Year: 2008 Close

• 47. [Image] Prospecting for Mineral Resources Yielding Some Promising Results

  	Citation × Citation Citation Abstract Copy Title: Prospecting for Mineral Resources Yielding Some Promising Results Year: 1980 Title: Prospecting for Mineral Resources Yielding Some Promising Results Year: 1980 Close

• 48. [Image] Water Contribution of Artificial Rain in the Lake Tiberias Watershed

  	Citation × Citation Citation Abstract Copy Title: Water Contribution of Artificial Rain in the Lake Tiberias Watershed Author: Kally, Elisha Year: 1975 Title: Water Contribution of Artificial Rain in the Lake Tiberias Watershed Author: Kally, Elisha Year: 1975 Close

• 49. [Image] Geology and Hydrology of the Irbid-District (Hashemite Kingdom of Jordan)

  	Citation × Citation Citation Abstract Copy Title: Geology and Hydrology of the Irbid-District (Hashemite Kingdom of Jordan) Year: 1959 Title: Geology and Hydrology of the Irbid-District (Hashemite Kingdom of Jordan) Year: 1959 Close

• 50. [Image] Major Regional Project on Rational Water Utilization and Conservation of Water Resources in the Rural Areas of the Arab States with Emphasis in Traditional Water Systems.

  	Citation × Citation Citation Abstract Copy Title: Major Regional Project on Rational Water Utilization and Conservation of Water Resources in the Rural Areas of the Arab States with Emphasis in Traditional Water Systems. Author: Unesco. Regional Office for Science and Technology in the Arab States; Arab Centre for the Studies of Arid Zones and Dry Lands Year: 1986 Title: Major Regional Project on Rational Water Utilization and Conservation of Water Resources in the Rural Areas of the Arab States with Emphasis in Traditional Water Systems. Author: Unesco. Regional Office for Science and Technology in the Arab States; Arab Centre for the Studies of Arid Zones and Dry Lands Year: 1986 Close

• 51. [Image] Natural Resources and the Environment Series

  	Citation × Citation Citation Abstract Copy Title: Natural Resources and the Environment Series Year: 1990 Title: Natural Resources and the Environment Series Year: 1990 Close

• 52. [Image] Megawatersheds Discovery

  	Citation × Citation Citation Abstract Copy Title: Megawatersheds Discovery Author: Bisson, Robert A. Year: 2008 Title: Megawatersheds Discovery Author: Bisson, Robert A. Year: 2008 Close

• 53. [Image] Large Dams in Turkey

  	Citation × Citation Citation Abstract Copy Title: Large Dams in Turkey Year: 1967 Title: Large Dams in Turkey Year: 1967 Close

• 54. [Image] Water Resources for the State of Palestine - Background Paper

  	Citation × Citation Citation Abstract Copy Title: Water Resources for the State of Palestine - Background Paper Year: 2008 Title: Water Resources for the State of Palestine - Background Paper Year: 2008 Close

• 55. [Image] Data and Schemata on Dan Region Wastewater Treatment and Reclamation Plant -- Israel

  	Citation × Citation Citation Abstract Copy Title: Data and Schemata on Dan Region Wastewater Treatment and Reclamation Plant -- Israel Year: 2011 Title: Data and Schemata on Dan Region Wastewater Treatment and Reclamation Plant -- Israel Year: 2011 Close

• 56. [Image] International Source-book on Irrigation and Drainage of Arid Lands in Relation to Salinity and Alkalinity

  	Citation × Citation Citation Abstract Copy Title: International Source-book on Irrigation and Drainage of Arid Lands in Relation to Salinity and Alkalinity Year: 1967 Title: International Source-book on Irrigation and Drainage of Arid Lands in Relation to Salinity and Alkalinity Year: 1967 Close

• 57. [Image] Hydrology of Lebanon: Preliminary Technical report

  	Citation × Citation Citation Abstract Copy Title: Hydrology of Lebanon: Preliminary Technical report Year: 1986 Title: Hydrology of Lebanon: Preliminary Technical report Year: 1986 Close

• 58. [Image] General Description and Economic Analysis

  	Citation × Citation Citation Abstract Copy Title: General Description and Economic Analysis Year: 1954 Title: General Description and Economic Analysis Year: 1954 Close

• 59. [Image] Turkey: Hydrological

  	Citation × Citation Citation Abstract Copy Title: Turkey: Hydrological Author: Naff, Thomas Year: 1987 Title: Turkey: Hydrological Author: Naff, Thomas Year: 1987 Close

• 60. [Image] Managing the Impact of Development: The Euphrates and Tigris Rivers and the Ecology of the Arabian Gulf - A link in forging Tri-Riparian cooperation

  	Citation × Citation Citation Abstract Copy Title: Managing the Impact of Development: The Euphrates and Tigris Rivers and the Ecology of the Arabian Gulf - A link in forging Tri-Riparian cooperation Year: 1994 Title: Managing the Impact of Development: The Euphrates and Tigris Rivers and the Ecology of the Arabian Gulf - A link in forging Tri-Riparian cooperation Year: 1994 Close

• 61. [Image] Israeli Archive Document: A Plan for the Primary Development of the Waters of the Jordan and the Yarmuk

  	Citation × Citation Citation Abstract Copy Title: Israeli Archive Document: A Plan for the Primary Development of the Waters of the Jordan and the Yarmuk Year: 1954 Title: Israeli Archive Document: A Plan for the Primary Development of the Waters of the Jordan and the Yarmuk Year: 1954 Close

• 62. [Image] Enironmental Management Geo-Water and Engirneering Aspects (Proceedings of the international conference on environmental management, geo-water and engineering aspects)

  	Citation × Citation Citation Abstract Copy Title: Enironmental Management Geo-Water and Engirneering Aspects (Proceedings of the international conference on environmental management, geo-water and engineering aspects) Year: 1993 Title: Enironmental Management Geo-Water and Engirneering Aspects (Proceedings of the international conference on environmental management, geo-water and engineering aspects) Year: 1993 Close

• 63. [Image] Modelling water resources and water demand in semi-arid areas: Data integration and analysis using a Geographic Information System

  	Citation × Citation Citation Abstract Copy Title: Modelling water resources and water demand in semi-arid areas: Data integration and analysis using a Geographic Information System Year: 1994 Title: Modelling water resources and water demand in semi-arid areas: Data integration and analysis using a Geographic Information System Year: 1994 Close

• 64. [Image] Short Turkey Pipeline/Canal

  	Citation × Citation Citation Abstract Copy Title: Short Turkey Pipeline/Canal Year: 2008 Title: Short Turkey Pipeline/Canal Year: 2008 Close

• 65. [Image] Soil Vulnerability mapping in Central and Eastern Europe: Issues of data acquisition, quality control and sharing

  	Citation × Citation Citation Abstract Copy Title: Soil Vulnerability mapping in Central and Eastern Europe: Issues of data acquisition, quality control and sharing Year: 2008 Title: Soil Vulnerability mapping in Central and Eastern Europe: Issues of data acquisition, quality control and sharing Year: 2008 Close

• 66. [Image] Integration of Desalination and Hydrogeologic Technologies For Incorporation of Unaccounted For Brackish and Thermal Groundwater in Local and Regional Water Balance

  	Citation × Citation Citation Abstract Copy Title: Integration of Desalination and Hydrogeologic Technologies For Incorporation of Unaccounted For Brackish and Thermal Groundwater in Local and Regional Water Balance Author: Bisson, Robert A. Year: 2008 Title: Integration of Desalination and Hydrogeologic Technologies For Incorporation of Unaccounted For Brackish and Thermal Groundwater in Local and Regional Water Balance Author: Bisson, Robert A. Year: 2008 Close

• 67. [Image] Technological Aspects of Water Resources Management

  	Citation × Citation Citation Abstract Copy Title: Technological Aspects of Water Resources Management Year: 2008 Title: Technological Aspects of Water Resources Management Year: 2008 Close

• 68. [Image] Bibliography of Reports Resulting from U.S. Geological Survey Scientific and Technical Cooperation with orther Countries, 1975 to June 1980

  	Citation × Citation Citation Abstract Copy Title: Bibliography of Reports Resulting from U.S. Geological Survey Scientific and Technical Cooperation with orther Countries, 1975 to June 1980 Author: Tinsley, Elizabeth J.; Upton, Valerie S. Year: 1982 Title: Bibliography of Reports Resulting from U.S. Geological Survey Scientific and Technical Cooperation with orther Countries, 1975 to June 1980 Author: Tinsley, Elizabeth J.; Upton, Valerie S. Year: 1982 Close

• 69. [Image] Proposed water code annotated: Report to the Ministry of Agriculture and Water Kingdom of Saudi Arabia

  	Citation × Citation Citation Abstract Copy Title: Proposed water code annotated: Report to the Ministry of Agriculture and Water Kingdom of Saudi Arabia Author: Development Assistance Corporation Year: 2008 Title: Proposed water code annotated: Report to the Ministry of Agriculture and Water Kingdom of Saudi Arabia Author: Development Assistance Corporation Year: 2008 Close

• 70. [Image] Options for Solving the Palestinian Water problem in the Context of Regional Peace

  	Citation × Citation Citation Abstract Copy Title: Options for Solving the Palestinian Water problem in the Context of Regional Peace Author: Kally, Elisha Year: 2008 Title: Options for Solving the Palestinian Water problem in the Context of Regional Peace Author: Kally, Elisha Year: 2008 Close

• 71. [Image] Ground-water geology of Kordofan Province, Sudan

  	Citation × Citation Citation Abstract Copy Title: Ground-water geology of Kordofan Province, Sudan Year: 1968 Title: Ground-water geology of Kordofan Province, Sudan Year: 1968 Close

• 72. [Image] Bibliography of reports resulting From U.S. Geological Survey participation in the United States Technical Assistance Program, 1940-67

  	Citation × Citation Citation Abstract Copy Title: Bibliography of reports resulting From U.S. Geological Survey participation in the United States Technical Assistance Program, 1940-67 Year: 1968 Title: Bibliography of reports resulting From U.S. Geological Survey participation in the United States Technical Assistance Program, 1940-67 Year: 1968 Close

• 73. [Image] Bibliography of Repots Resulting form U.S. Geological Survey Technical Cooperation with Other Countries, 1967-74

  	Citation × Citation Citation Abstract Copy Title: Bibliography of Repots Resulting form U.S. Geological Survey Technical Cooperation with Other Countries, 1967-74 Year: 1976 Title: Bibliography of Repots Resulting form U.S. Geological Survey Technical Cooperation with Other Countries, 1967-74 Year: 1976 Close

• 74. [Image] Banque d'Information sur les Ressources en eau des Pays Arabes (version simplifiee)

  	Citation × Citation Citation Abstract Copy Title: Banque d'Information sur les Ressources en eau des Pays Arabes (version simplifiee) Year: 1982 Title: Banque d'Information sur les Ressources en eau des Pays Arabes (version simplifiee) Year: 1982 Close

• 75. [Image] Banque d'Information sur les Ressources en eau des Pays Arabes (version developpee)

  	Citation × Citation Citation Abstract Copy Title: Banque d'Information sur les Ressources en eau des Pays Arabes (version developpee) Year: 1982 Title: Banque d'Information sur les Ressources en eau des Pays Arabes (version developpee) Year: 1982 Close

• 76. [Image] Desertification in Iraq and Measures for Development and Management

  	Citation × Citation Citation Abstract Copy Title: Desertification in Iraq and Measures for Development and Management Year: 2008 Title: Desertification in Iraq and Measures for Development and Management Year: 2008 Close

• 77. [Image] High pH Water in Maqarin Area, Jordan (Occurence, Mineralization, Genesis)

  	Citation × Citation Citation Abstract Copy Title: High pH Water in Maqarin Area, Jordan (Occurence, Mineralization, Genesis) Author: Salāmah, Ilyās Year: 1985 Title: High pH Water in Maqarin Area, Jordan (Occurence, Mineralization, Genesis) Author: Salāmah, Ilyās Year: 1985 Close

• 78. [Image] Hydrogeological Investigation of Surug Plain, (Urfa), Turkey

  	Citation × Citation Citation Abstract Copy Title: Hydrogeological Investigation of Surug Plain, (Urfa), Turkey Year: 1971 Title: Hydrogeological Investigation of Surug Plain, (Urfa), Turkey Year: 1971 Close

• 79. [Image] Towards an Interdisciplinary Approach to the Resolution of International Water Disputes: The Jordan River Watershed as a Case Study

  	Citation × Citation Citation Abstract Copy Title: Towards an Interdisciplinary Approach to the Resolution of International Water Disputes: The Jordan River Watershed as a Case Study Year: 2008 Title: Towards an Interdisciplinary Approach to the Resolution of International Water Disputes: The Jordan River Watershed as a Case Study Year: 2008 Close

• 80. [Image] Part I: Existing Use of Water and Current Water Technology

  	Citation × Citation Citation Abstract Copy Title: Part I: Existing Use of Water and Current Water Technology Year: 1992 Title: Part I: Existing Use of Water and Current Water Technology Year: 1992 Close

• 81. [Image] Running Silent Running Deep

  	Citation × Citation Citation Abstract Copy Title: Running Silent Running Deep Year: 1991 Title: Running Silent Running Deep Year: 1991 Close

• 82. [Image] Ch. 3: Physical Composition

  	Citation × Citation Citation Abstract Copy Title: Ch. 3: Physical Composition Year: 1954 Title: Ch. 3: Physical Composition Year: 1954 Close

• 83. [Image] Land Development Project: The Sudan. The Aweil Rice Scheme, 1974-79

  	Citation × Citation Citation Abstract Copy Title: Land Development Project: The Sudan. The Aweil Rice Scheme, 1974-79 Year: 1980 Title: Land Development Project: The Sudan. The Aweil Rice Scheme, 1974-79 Year: 1980 Close

• 84. [Image] Management of the Litani River

  	Citation × Citation Citation Abstract Copy Title: Management of the Litani River Author: Kolars, John F. Year: 1987 Title: Management of the Litani River Author: Kolars, John F. Year: 1987 Close

• 85. [Image] Some Considerations for Increasing the Supply of and Reducing the Demand for Useable Water in Jordan

  	Citation × Citation Citation Abstract Copy Title: Some Considerations for Increasing the Supply of and Reducing the Demand for Useable Water in Jordan Author: Arar, Abdullah Year: 1978 Title: Some Considerations for Increasing the Supply of and Reducing the Demand for Useable Water in Jordan Author: Arar, Abdullah Year: 1978 Close

• 86. [Image] Artesian Wells in Palestine: Present Status and Furute Aspirations

  	Citation × Citation Citation Abstract Copy Title: Artesian Wells in Palestine: Present Status and Furute Aspirations Year: 1992 Title: Artesian Wells in Palestine: Present Status and Furute Aspirations Year: 1992 Close

• 87. [Image] Geology and Hydrology of the Area West of Karak City/Jordan

  	Citation × Citation Citation Abstract Copy Title: Geology and Hydrology of the Area West of Karak City/Jordan Author: Salāmah, Ilyās Year: 1981 Title: Geology and Hydrology of the Area West of Karak City/Jordan Author: Salāmah, Ilyās Year: 1981 Close

• 88. [Image] Nile River - A case history

  	Citation × Citation Citation Abstract Copy Title: Nile River - A case history Year: 1972 Title: Nile River - A case history Year: 1972 Close

• 89. [Image] Israel

  	Citation × Citation Citation Abstract Copy Title: Israel Year: 1976 Title: Israel Year: 1976 Close

• 90. [Image] Litani River Project : Lebanon - reconnaissance report

  	Citation × Citation Citation Abstract Copy Title: Litani River Project : Lebanon - reconnaissance report Year: 1951 Title: Litani River Project : Lebanon - reconnaissance report Year: 1951 Close

• 91. [Image] Hyrrologie und Umwelt/Groundwater Resources of the Deep Aquifer in NW-Jordan: Hydrologeological and Hydrogeochemical

  	Citation × Citation Citation Abstract Copy Title: Hyrrologie und Umwelt/Groundwater Resources of the Deep Aquifer in NW-Jordan: Hydrologeological and Hydrogeochemical Year: 1991 Title: Hyrrologie und Umwelt/Groundwater Resources of the Deep Aquifer in NW-Jordan: Hydrologeological and Hydrogeochemical Year: 1991 Close

• 92. [Image] Israeli Archive Document: Specifics of the Meeting that Occured on March 8, 1954

  	Citation × Citation Citation Abstract Copy Title: Israeli Archive Document: Specifics of the Meeting that Occured on March 8, 1954 Author: Rafael, Gideon Year: 1954 Title: Israeli Archive Document: Specifics of the Meeting that Occured on March 8, 1954 Author: Rafael, Gideon Year: 1954 Close

• 93. [Image] Aquifere Cretace Moyen du Versant Ouest: Schema Hydrogeologique

  	Citation × Citation Citation Abstract Copy Title: Aquifere Cretace Moyen du Versant Ouest: Schema Hydrogeologique Year: 2008 Title: Aquifere Cretace Moyen du Versant Ouest: Schema Hydrogeologique Year: 2008 Close

• 94. [Image] Data Bank for Water Resources in Arab Countries (simplified text)

  	Citation × Citation Citation Abstract Copy Title: Data Bank for Water Resources in Arab Countries (simplified text) Year: 1982 Title: Data Bank for Water Resources in Arab Countries (simplified text) Year: 1982 Close

• 95. [Image] Lebanon: Hydrological

  	Citation × Citation Citation Abstract Copy Title: Lebanon: Hydrological Year: 1986 Title: Lebanon: Hydrological Year: 1986 Close

• 96. [Image] Land reclamation and water resources engineering in Republic of Iraq

  	Citation × Citation Citation Abstract Copy Title: Land reclamation and water resources engineering in Republic of Iraq Year: 1980 Title: Land reclamation and water resources engineering in Republic of Iraq Year: 1980 Close

• 97. [Image] Hydrogeological Evaluation of the Environs of Lake Nasser

  	Citation × Citation Citation Abstract Copy Title: Hydrogeological Evaluation of the Environs of Lake Nasser Year: 1981 Title: Hydrogeological Evaluation of the Environs of Lake Nasser Year: 1981 Close

• 98. [Image] Israeli Archives Document: The Master Plan for the Development of the Jordan, March 1954

  	Citation × Citation Citation Abstract Copy Title: Israeli Archives Document: The Master Plan for the Development of the Jordan, March 1954 Year: 2008 Title: Israeli Archives Document: The Master Plan for the Development of the Jordan, March 1954 Year: 2008 Close

• 99. [Image] Flooding

  	Citation × Citation Citation Abstract Copy Title: Flooding Year: 1972 Title: Flooding Year: 1972 Close

• 100. [Image] Flood Spreading in Arid Areas: Hydraulic and Agronomic Aspects

  	Citation × Citation Citation Abstract Copy Title: Flood Spreading in Arid Areas: Hydraulic and Agronomic Aspects Year: 1977 Title: Flood Spreading in Arid Areas: Hydraulic and Agronomic Aspects Year: 1977 Close