Recent regional surface solar radiation dimming and brightening patterns: inter‐hemispherical asymmetry and a dimming in the Southern Hemisphere | Zendy

Hatzianastassiou N. | Zendy; Papadimas C. D. | Zendy; Matsoukas C. | Zendy; Pavlakis K. | Zendy; Fotiadi A. | Zendy; Wild M. | Zendy; Vardavas I. | Zendy

Open Access

Recent regional surface solar radiation dimming and brightening patterns: inter‐hemispherical asymmetry and a dimming in the Southern Hemisphere

Author(s) -

Hatzianastassiou N.,

Papadimas C. D.,

Matsoukas C.,

Pavlakis K.,

Fotiadi A.,

Wild M.,

Vardavas I.

Publication year - 2011

Publication title -

atmospheric science letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.951

H-Index - 45

ISSN - 1530-261X

DOI - 10.1002/asl.361

Subject(s) - southern hemisphere , northern hemisphere , climatology , radiative transfer , atmospheric sciences , environmental science , sky , asymmetry , geography , meteorology , physics , geology , optics , quantum mechanics

Recent variations in surface solar radiation (SSR) at the beginning of the 21st century (2000–2007) were determined at scales ranging from local/regional to hemispherical/global, on the basis of radiative transfer computations and information from satellites, reanalyses and surface measurements. Under all‐sky conditions, in the Northern Hemisphere (NH) there is no clear dimming/brightening signal after 2000, whereas in the SH there is a more clear dimming arising from both increasing clouds and aerosols. Dimming is observed over land and ocean in the Southern Hemisphere (SH), and over oceans in the NH, whereas a slight brightening occurred over NH land. However, opposite tendencies are found even within the same continent, indicating the need to assess SSR changes at regional/local scales apart from hemispherical/global ones. Copyright © 2011 Royal Meteorological Society

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