Cloudiness variations over the Qinghai-Tibet Plateau during 1971-2004

Auteurs :
ZHANG, X.
PENG, L.
ZHENG, D.
TAO, J.

Description :
The spatio-temporal variation of total cloud amount is analyzed for 75 stations on Qinghai-Tibet Plateau during 1971-2004. Correlation analysis demonstrates that the total cloud amount is negative with sunshine duration and diurnal temperature range, and is positive with precipitation and the relative humidity, respectively. The negative correlation is consistent with the radiative effect of cloud. Discussion implies that the decrease of total cloud amount is possibly due tothe variation of atmospheric aerosol content and ozone concentration over the plateau, although it is difficult to quantify the driving force mechanism up to now.


Type de document :
Article de périodique

Source :
Journal of geographical sciences. Acta geographica sinica, issn : 1009-637X, 2008, vol. 18, n°. 2, p. 142-154, nombre de pages : 13, Collation : Illustration, Références bibliographiques : 48 ref.

Date :
2008

Editeur :
Pays édition : Chine