Recent regional surface solar radiation dimming and brightening patterns: inter-hemispherical asymmetry and a dimming in the Southern Hemisphere (Journal article)

Hatzianastassiou, N./ Papadimas, C. D./ Matsoukas, C./ Pavlakis, K./ Fotiadi, A./ Wild, M./ Vardavas, I.

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 (c) 2011 Royal Meteorological Society
Institution and School/Department of submitter: Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών
Keywords: solar radiation,climate,dimming,brightening,clouds,aerosols,earths surface,reanalysis,trends
URI: https://olympias.lib.uoi.gr/jspui/handle/123456789/17259
ISSN: 1530-261X
Link: <Go to ISI>://000299206500007
http://onlinelibrary.wiley.com/store/10.1002/asl.361/asset/361_ftp.pdf?v=1&t=h0xlln9f&s=a50db78df8dd3335a19e14cb5e1bf90179a23dad
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)

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