HR: 0800h
AN: H21F-1083    [Abstracts]
TI: Influence of Land Cover on Regional Scale Groundwater Recharge: Analysis With NEXRAD Precipitation Data
AU: * Jayawickreme, D H
EM: jayawick@msu.edu
AF: Department of Geological Sciences, Michigan State University, 206 Natural Science Building, East Lansing, MI 48824 United States
AU: Hyndman, D W
EM: hyndman@msu.edu
AF: Department of Geological Sciences, Michigan State University, 206 Natural Science Building, East Lansing, MI 48824 United States
AU: Pijanowski, B C
EM: pijanowski@fnr.purdue.edu
AF: Department of Forestry and Natural Resources, Purdue University, 220W Forest Products Building, West Lafayette, IN 47906 United States
AU: Andresen, J A
EM: andresen@msu.edu
AF: Department of Geography, Michigan State University, 417 Natural Science Building, East Lansing, MI 48824 United States
AB: Most regional watersheds in Michigan experienced significant land use change over the last one hundred years. The potential impacts of these changes on regional groundwater and surface water systems have gained significant attention of stakeholders, yet the current scientific evidence is inadequate for policy makers to incorporate into watershed management decisions. We attempt to bridge this gap by exploring the dependence of groundwater recharge on land use and land cover in regional watersheds. Our approach involves identifying the base flow component of stream flow by analyzing stream flow response to NEXRAD derived precipitation data using statistical techniques and computer models. We then link this information with land use and other physical characteristics of regional watersheds to examine the influence of land use on groundwater recharge. The results of this research are expected to provide policy makers with the necessary information to implement more informed watershed management decisions.
DE: 1655 Water cycles (1836)
DE: 1803 Anthropogenic effects
DE: 1829 Groundwater hydrology
DE: 1833 Hydroclimatology
DE: 1630 Impact phenomena
SC: Hydrology [H]
MN: 2004 AGU Fall Meeting