The influence of soil moisture anomalies on variability of the North American monsoon system

Details The influence of soil moisture anomalies on variability of the North American monsoon system The influence of soil moisture anomalies on variability of the North American monsoon system

Jan 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001georl..28..139s&link_type=abstract

Geophysical Research Letters, Volume 28, Issue 1, p. 139-142

Physics

36

Hydrology: Hydroclimatology, Hydrology: Soil Moisture, Meteorology And Atmospheric Dynamics: Land/Atmosphere Interactions, Oceanography: General: Climate And Interannual Variability

Scientific paper

We examine the influence of land-atmosphere interactions, as moderated by soil moisture anomalies, on variability of the North American Monsoon System (NAMS). Sensitivity experiments, in which soil moisture was prescribed to field capacity, were completed with the MM5 mesoscale model linked to the OSU land surface scheme. Our results demonstrate that the NAMS precipitation response to soil moisture forcing depends critically on the location of anomalous surface conditions. We soil in the southern Rocky Mountains (SRM) during July, which could result from the melt of an above-normal snowpack, inhibits precipitation in the NAMS region. This is consistent with the observed negative correlation between SRM spring snowcover and NAMS summer precipitation [Gutzler and Preston, 1997]. In contrast, wet soil in the NAMS region enhances July precipitation within that area-a positive soil moisture-rainfall feedback exists. Our findings must be tested with experiments that incorporate anomalies constrained by regional-scale soil moisture observations.

Affiliated with

Also associated with

No associations

Rating

The influence of soil moisture anomalies on variability of the North American monsoon system does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The influence of soil moisture anomalies on variability of the North American monsoon system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The influence of soil moisture anomalies on variability of the North American monsoon system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-924364