Physics
Scientific paper
Nov 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3221404r&link_type=abstract
Geophysical Research Letters, Volume 32, Issue 21, CiteID L21404
Physics
9
Hydrology: Erosion, Hydrology: Desertification, Hydrology: Soil Moisture
Scientific paper
The wind-forced detachment and movement of soil particles, is known for having important regional and global implications on climate change and biogeochemical cycles. The wind erosion process occurs when wind speed exceeds a certain threshold value, which depends on a number of factors, including surface soil moisture. In arid regions changes in atmospheric humidity contribute to most of the variability in surface soil moisture, which, in turn, has a significant influence on wind erosion threshold. This paper investigates the dependence of wind erosion threshold on air humidity in two arid regions in North America, the Mojave Desert (CA) and Canyonlands (UT). Field data are used to test existing models relating the threshold velocity for wind erosion to atmospheric conditions. The threshold velocity is found to be significantly dependent on the atmospheric relative humidity (RH) and to exhibit a well-defined maximum for RH ~ 35%. This result validates at the field scale recent theories and laboratory-scale experimental results.
D'Odorico Paolo
Ravi Sujith
No associations
LandOfFree
A field-scale analysis of the dependence of wind erosion threshold velocity on air 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 A field-scale analysis of the dependence of wind erosion threshold velocity on air humidity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A field-scale analysis of the dependence of wind erosion threshold velocity on air humidity will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1657540