Physics
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008georl..3509812k&link_type=abstract
Geophysical Research Letters, Volume 35, Issue 9, CiteID L09812
Physics
9
Atmospheric Processes: Precipitation (1854), Atmospheric Processes: Regional Modeling, Atmospheric Processes: Mesoscale Meteorology
Scientific paper
The impact of humidity variations on QPF is studied performing a series of sensitivity experiments with the COSMO model at a horizontal mesh size of 7 km. Generally, variations of humidity in the boundary layer have the largest impact on precipitation, and the sensitivity decreases with height. An increase of humidity by 10% in the boundary layer is equivalent to an increase of 20% in the mid-troposphere. While the impact of humidity variation on stratiform precipitation persists throughout the 36-h forecast period, the impact diminishes after 24 h in the convective rainfall area. Increasing the boundary layer humidity by 30% leads to a 6 h earlier initiation of convection and a five times larger precipitation amount in the convective area, whereas it is doubled in the stratiform region. These results indicate that accurate measurements of humidity in the boundary layer are most important for QPF.
Craig George C.
Keil Christian
Röpnack Andreas
Schumann Ulrich
No associations
LandOfFree
Sensitivity of quantitative precipitation forecast to height dependent changes in humidity 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 Sensitivity of quantitative precipitation forecast to height dependent changes in humidity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sensitivity of quantitative precipitation forecast to height dependent changes in humidity will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1540358