HR: 17:40h
AN: H24A-07 INVITED     [Abstracts]
TI: Hewlett's legacy: Remaining challenges and possible ways forward
AU: * McGlynn, B L
EM: bmcglynn@montana.edu
AF: Montana State University, Watershed Hydrology Lab Department of Land Resources and Environmental Sciences 334 Leon Johnson Hall, Bozeman, MT 59717 United States
AU: Seibert, J
EM: jan.seibert@natgeo.su.se
AF: Stockholm University, Department of Physical Geography and Quaternary Geology Svante Arrhenius veg 8C, Stockholm, 106 91 Sweden
AB: Runoff generation mechanisms have been elucidated and described from the pioneering work of Horton and Hewlett to contemporary investigations. Our understanding has grown and our perceptual models of runoff generation have increased in complexity beyond analytical description. We have come to realize that no single research approach can resolve the complexities of streamflow generation and that combined hydrometric, tracer, and modeling approaches are best used in concert to improve process understanding. Despite this progress, significant challenges remain. How do we distill complicated perceptual models into quantitative yet parsimonious representations of catchment hydrology (model structure)? What core catchment data are necessary to assess and model dominant runoff processes (prediction in ungauged basins)? How do runoff generation mechanisms vary and scale in space and what is their downstream legacy (channel network versus headwater catchment control on meso-scale hydrologic response). We present possible ways forward, integrating process research, landscape analysis, and potential model structures.
DE: 1839 Hydrologic scaling
DE: 1860 Streamflow
DE: 1874 Ungaged basins
DE: 1879 Watershed
DE: 1894 Instruments and techniques: modeling
SC: Hydrology [H]
MN: Fall Meeting 2005