HR: 0800h
AN: A31A-05    [Abstracts]
TI: Moisture parameters from models and analyses for NAME
AU: * Salstein, D A
EM: salstein@aer.com
AF: Atmospheric and Environmental Research, Inc., 131 Hartwell Ave., Lexington, MA 02421, United States
AU: Cady-Pereira, K
EM: kcadyper@aer.com
AF: Atmospheric and Environmental Research, Inc., 131 Hartwell Ave., Lexington, MA 02421, United States
AB: We analyzed surface total column parameters, including evaporation, precipitation, precipitable water and water vapor fluxes and divergence, during the warm season (May-October) of two focus years (1990 and 2004) over the North American Monsoon Experiment region, i.e., SW United States and NW Mexico. We compared the calculated values of these parameters, as well as the total moisture budget, from the regional models that participated in the NAME Model Assessment Project campaign and from the North American Regional Reanalysis. We noted considerable differences in precipitation, water vapor divergence, and direction of moisture transport vectors over the North American Monsoon region in the two focus years. The NARR results also identified the characteristics of the moisture seasonal variability, and some high frequency signals within it, including the role of the Sea of Cortez/Gulf of California in the moisture budget. Going beyond the focus years, the NARR output was used to determine the different properties of the water vapor parameters in very wet and very dry years.
DE: 1616 Climate variability (1635, 3305, 3309, 4215, 4513)
DE: 3354 Precipitation (1854)
DE: 3355 Regional modeling
SC: Atmospheric Sciences [A]
MN: 2007 Joint Assembly