HR: 09:30h
AN: H51F-05    [Abstracts]
TI: Spatio-Temporal Trends in the North American Monsoon
AU: * Grantz, K
EM: grantz@colorado.edu
AF: Center for Advanced Decision Support for Water and Environmental Systems, 421 UCB, University of Colorado, Boulder, CO 80309 United States
AU: * Grantz, K
EM: grantz@colorado.edu
AF: Dept of Civil, Environmental & Architectural Engineering, 428 UCB, University of Colorado, Boulder, CO 80309 United States
AU: Rajagopalan, B
EM: rajagopalan.balaji@colorado.edu
AF: Dept of Civil, Environmental & Architectural Engineering, 428 UCB, University of Colorado, Boulder, CO 80309 United States
AU: Rajagopalan, B
EM: rajagopalan.balaji@colorado.edu
AF: Cooperative Institute for Research in Environmental Sciences, 216 UCB, University of Colorado, Boulder, CO 80309 United States
AU: Clark, M
EM: clark@vorticity.colorado.edu
AF: Cooperative Institute for Research in Environmental Sciences, 216 UCB, University of Colorado, Boulder, CO 80309 United States
AU: Zagona, E
EM: zagona@colorado.edu
AF: Center for Advanced Decision Support for Water and Environmental Systems, 421 UCB, University of Colorado, Boulder, CO 80309 United States
AB: The North American Monsoon is responsible for as much as 50-70 percent of the annual precipitation in the desert southwest. The variability of this important moisture source has significant municipal, agricultural, and environmental impacts. It is, thus, important to understand the mechanisms driving this variability and to predict it. Results show that there is an increasing trend in summer precipitation over New Mexico and a decreasing trend in summer precipitation over Arizona. This shift has potential links to large scale climate. Correlations with large-scale atmospheric variables indicate that summer precipitation may be more dominated by large-scale patterns set up early in the monsoon season. Relationships with the space-time variability in streamflow of selected basins are also investigated. Links with antecedent winter precipitation and temperature are currently being studied.
DE: 1833 Hydroclimatology
DE: 1884 Water supply
SC: Hydrology [H]
MN: 2005 Joint Assembly