HR: 1330h
AN: H22D-0962    [PDF]
TI: Multi-Watershed Evaluation of WSR-88D (NEXRAD) Radar-Precipitation Products for Hydrologic and Natural Resources Modeling Applications
AU: * Hardegree, S P
EM: shardegr@nwrc.ars.usda.gov
AF: USDA Agricultural Research Service, Northwest Watershed Research Center, Boise, ID 83712 United States
AU: Van Vactor, S S
EM: svanvact@nwrc.ars.usda.gov
AF: USDA Agricultural Research Service, Northwest Watershed Research Center, Boise, ID 83712 United States
AU: Healy, K R
EM: khealy@nwrc.ars.usda.gov
AF: USDA Agricultural Research Service, Northwest Watershed Research Center, Boise, ID 83712 United States
AU: Alonso, C V
EM: calonso@ars.usda.gov
AF: USDA-ARS, National Sedimentation Laboratory, Oxford, MS 38655 United States
AU: Bonta, J V
EM: bonta@coshocton.ars.usda.gov
AF: USDA-ARS, North Appalachian Experimental Watershed, Coshocton, OH 43812 United States
AU: Bosch, D D
EM: dbosch@tifton.usda.gov
AF: USDA-ARS, Southeast Watershed Research Unit, Tifton, GA 31793 United States
AU: Fisher, D S
EM: dwight_fisher@scientist.com
AF: USDA-ARS, J.Phil Campbell Sr. Natural Resource Conservation Center, Watkinsville, GA 30677 United States
AU: Goodrich, D C
EM: dgoodrich@tucson.ars.ag.gov
AF: USDA-ARS, Southwest Watershed Research Center, Tucson, AZ 85719 United States
AU: Harmel, R D
EM: dharmel@spa.ars.usda.gov
AF: USDA-ARS, Natural Resources Systems Research Unit, Temple, TX 76502 United States
AU: Steiner, J L
EM: jsteiner@grl.ars.usda.gov
AF: USDA-ARS, Great Plains Agroclimate and Natural Resources Research Unit, El Reno, OK 73036 United States
AU: Van Liew, M W
EM: mvanliew@grl.ars.usda.gov
AF: USDA-ARS, Great Plains Agroclimate and Natural Resources Research Unit, El Reno, OK 73036 United States
AB: The National Weather Service (NWS) operates a network of Doppler-radar stations (NEXRAD, WSR-88D) that produce hourly-rainfall estimates, at approximately 4-km$^{2}$ resolution, with nominal coverage of 96% of the conterminous US. Utilization of these data by the NWS are primarily for the detection and modeling of extreme-weather events. Radar-precipitation estimates were compared with gauge estimates at 6 ARS watershed-research locations in Idaho, Arizona, Oklahoma, Georgia and Mississippi, to evaluate the utility of these data for hydrologic and natural resources modeling applications. Radar precipitation estimates underestimated gauge readings for all locations except Tucson. In all cases, the total number of hours with measured-radar precipitation was much less than hours containing gauge-precipitation estimates. Additional modification of NWS precipitation processing procedures will be necessary to improve accessibility and utility of these data for hydrologic and natural resource modeling applications.
DE: 1836 Hydrologic budget (1655)
DE: 1854 Precipitation (3354)
DE: 3354 Precipitation (1854)
DE: 3360 Remote sensing
DE: 3394 Instruments and techniques
SC: Hydrology [H]
MN: 2003 Fall Meeting