HR: 1340h
AN: GC43A-0947    [Abstracts]
TI: Assessing the low-frequency variability in ensemble simulations of western North American hydroclimate for 20th and 21st century
AU: * Jain, S
EM: Shaleen.Jain@maine.edu
AF: University of Maine, Civil & Environmental Engineering, 5711 Boardman Hall, Orono, ME 04469,
AU: Chandler, J
EM: John_Chandler@umit.maine.edu
AF: University of Maine, Civil & Environmental Engineering, 5711 Boardman Hall, Orono, ME 04469,
AU: Eischeid, J
EM: Jon.K.Eischeid@noaa.gov
AF: NOAA ESRL, 325 Broadway, Boulder, CO 80305,
AB: Recent availability of multimodel coupled global climate ensemble simulations of the 20th and 21st century climate affords a detailed diagnosis, detection and attribution of regional hydroclimatic change. We examine the interannual-to decadal and longer-term variations in the western North American region for the 20th and 21st century. Two aspects are specifically examined: a. Changing low frequency character of hydroclimatic variations and implications for water supply reliability and frequency of hydrologic extremes. b. the nature of ENSO teleconnections for western North America in the coupled climate model simulations, and the projected changes for the 21st century. Within this context, the utility of multimodel ensembles for water resources management and planning is discussed.
DE: 1630 Impacts of global change (1225)
SC: Global Environmental Change [GC]
MN: 2007 Fall Meeting