A coupled MM5-Noah Land Surface Model-based assessment of sensitivity of planetary boundary layer variables to anomalous soil moisture conditions

Auteurs :
QUINTANAR, A.I.
MAHMOOD, R.
LOUGHRIN, J.
LOVANH, N.C.

Description :
The sensitivity of the near-surface weather variables and small-scale convection to soil moisture for Western Kentucky was investigated with the aide of the MM5 Penn State/NCAR mesoscale atmospheric model for 3 different synoptic conditions in june 2006. The model was initialized with FNL reanalysis from NCEP containing soil moisture data calculated with the Noah land surface model. Dry and wet experiments were performed in order to find the influence of soil moisture specification on boundary layer atmospheric variables. It was found that the response of planetary boundary layer variables under a variety of soil moisture conditions can be modified due to degree of synoptic forcing.


Type de document :
Article de périodique

Source :
Physical geography, issn : 0272-3646, 2008, vol. 29, n°. 1, p. 54-78, nombre de pages : 25, Collation : Illustration, Références bibliographiques : 36 ref.

Date :
2008

Editeur :
Pays édition : Royaume-Uni, Abingdon, Taylor and Francis