A central-U.S. summer extreme dew-point climatology (1949-2000)

Auteurs :
SANDSTROM, M.A.
LAURITSEN, R.G.
CHANGNON, D.

Description :
Daily average dew points (DADPs) were examined at 68 central-U.S. weather stations from 1949 to 2000 to identify temporal trends in the occurrence of summer (June-August) extreme surface dew-points days (DADP >22°C). The results indicated that the greatest percent increases occurred in the Midwest. Smaller increases to the south of this area suggest that these increases are not primarily linked to advection from the Gulf of Mexico, rather they are related to changes in a regional moisture source. This moisture source appears to be related to enhanced levels of evapotranspiration from corn and soybean crops.


Type de document :
Article de périodique

Source :
Physical geography, issn : 0272-3646, 2004, vol. 25, n°. 3, p. 191-207, nombre de pages : 17, Collation : Illustration, Références bibliographiques : 30 ref.

Date :
2004

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