A felhők szerepe az éghajlatváltozásban

Nuages et changement climatique

Auteurs :
LÁBÓ, E.
GERESDI, I.

Description :
The impact of clouds on climate can be determined by numerical models or satellite observation. The article presents the results of the ERBE measurement campaign, which concluded that the presence of clouds decreases the intensity of longwave radiation escaping into the space. This statement was also proved by authors’ calculations made by a simplified model stimulating infrared atmospheric profiles. Applying this model, authors also investigated the infrared radiation fluxes in the atmosphere in the case of four different cloud types. The results show that the net fluxes on the surface depend only on the height of the clouds. It was also found that the net flux at the top of the cloud decreases sharply close to zero; as the cloud absorbs most of the downward infrared radiation. - (AM)


Type de document :
Article de périodique

Source :
Földrajzi kõzlemények, issn : 0015-5411, 2010, vol. 134, n°. 2, p. 115-127, nombre de pages : 13, Références bibliographiques : 9 ref.

Date :
2010

Editeur :
Pays édition : Hongrie, Budapest, Magyar Földrajzi Társaság