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חיפוש מתקדם
Israel Journal of Earth Sciences
Alexandrov, Y., Department of Geography and Environmental Development, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel
Balaban, N., Department of Geography and Environmental Development, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel
Bergman, N., Department of Geography and Environmental Development, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel
Chocron, M., Department of Geography and Environmental Development, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel
Laronne, J., Department of Geography and Environmental Development, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel, Department of Geography, Loughborough University, Loughborough LE11 3TU, United Kingdom
Powell, D., Department of Geography, University of Leicester, Leicester LE1 7RH, United Kingdom
Reid, I., Department of Geography and Environmental Development, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel, Department of Geography, Loughborough University, Loughborough LE11 3TU, United Kingdom
Tagger, S., Institute of Soil, Water and Environmental Sciences, Agriculture Research Organization, Bet Dagan 50250, Israel, Department of Soil and Water Sciences, Faculty of Agriculture, Food and Environmental Quality Sciences, Hebrew University of Jerusalem, Rehovot 76100, Israel
Wener-Franka, I., Department of Geography and Environmental Development, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel
An extensive water and sediment monitoring network has been established during the past two decades in the Nahal Besor catchment of the northern Negev. Its primary purpose is to measure water and sediment fluxes at different hydrological scales and thus assist in understanding the complexity of sedimentary dynamics when these are assessed at the outlet of the trunk stream. Water and suspended sediment monitoring systems have been developed to provide discrete and continuous records, from which material fluxes have been calculated. The network involves 3 upland catchments-Nahal Eshtemoa, Nahal Sekher, and a sub-catchment of Nahal Bikhra-differing in size and/or rainfall regime. Suspended sediment rating curves for the small (0.66 km2) and medium-sized (112 km2) basins in the same physiographic province are near-parallel, but that of the small basin lies below, reflecting less availability of sediment that can be mobilized throughout the range of specific discharge. The rating curve of Nahal Sekher (170 km2) cuts across those of the Eshtemoa and Bikhra, reflecting the greater aridity of the Sekher, the southern part of which contributes some runoff and much sediment only during major flow events. It also reflects the importance of sand, less loess cover, and greater exposure of rock in the headwaters of the Sekher. The complexity of sediment response during individual events results from flushing that brings hysteresis to the relation between concentration of the suspension and water discharge. This is also used to show the progressive exhaustion of sediment sources during the passage of an individual event. © 2009 Science From Israel/ LPPLtd.
פותח על ידי קלירמאש פתרונות בע"מ -
הספר "אוצר וולקני"
אודות
תנאי שימוש
Differentiated suspended sediment transport in headwater basins of the Besor catchment, northern Negev
57
Alexandrov, Y., Department of Geography and Environmental Development, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel
Balaban, N., Department of Geography and Environmental Development, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel
Bergman, N., Department of Geography and Environmental Development, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel
Chocron, M., Department of Geography and Environmental Development, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel
Laronne, J., Department of Geography and Environmental Development, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel, Department of Geography, Loughborough University, Loughborough LE11 3TU, United Kingdom
Powell, D., Department of Geography, University of Leicester, Leicester LE1 7RH, United Kingdom
Reid, I., Department of Geography and Environmental Development, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel, Department of Geography, Loughborough University, Loughborough LE11 3TU, United Kingdom
Tagger, S., Institute of Soil, Water and Environmental Sciences, Agriculture Research Organization, Bet Dagan 50250, Israel, Department of Soil and Water Sciences, Faculty of Agriculture, Food and Environmental Quality Sciences, Hebrew University of Jerusalem, Rehovot 76100, Israel
Wener-Franka, I., Department of Geography and Environmental Development, Ben-Gurion University of the Negev, Be'er Sheva 84105, Israel
Differentiated suspended sediment transport in headwater basins of the Besor catchment, northern Negev
An extensive water and sediment monitoring network has been established during the past two decades in the Nahal Besor catchment of the northern Negev. Its primary purpose is to measure water and sediment fluxes at different hydrological scales and thus assist in understanding the complexity of sedimentary dynamics when these are assessed at the outlet of the trunk stream. Water and suspended sediment monitoring systems have been developed to provide discrete and continuous records, from which material fluxes have been calculated. The network involves 3 upland catchments-Nahal Eshtemoa, Nahal Sekher, and a sub-catchment of Nahal Bikhra-differing in size and/or rainfall regime. Suspended sediment rating curves for the small (0.66 km2) and medium-sized (112 km2) basins in the same physiographic province are near-parallel, but that of the small basin lies below, reflecting less availability of sediment that can be mobilized throughout the range of specific discharge. The rating curve of Nahal Sekher (170 km2) cuts across those of the Eshtemoa and Bikhra, reflecting the greater aridity of the Sekher, the southern part of which contributes some runoff and much sediment only during major flow events. It also reflects the importance of sand, less loess cover, and greater exposure of rock in the headwaters of the Sekher. The complexity of sediment response during individual events results from flushing that brings hysteresis to the relation between concentration of the suspension and water discharge. This is also used to show the progressive exhaustion of sediment sources during the passage of an individual event. © 2009 Science From Israel/ LPPLtd.
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