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Titolo:
ON AEROSOL DIRECT SHORTWAVE FORCING AND THE HENYEY-GREENSTEIN PHASE FUNCTION
Autore:
BOUCHER O;
Indirizzi:
UNIV LILLE 1,UFR PHYS BAT P5,OPT ATMOSPHER LAB F-59655 VILLENEUVE DASCQ FRANCE
Titolo Testata:
Journal of the atmospheric sciences
fascicolo: 1, volume: 55, anno: 1998,
pagine: 128 - 134
SICI:
0022-4928(1998)55:1<128:OADSFA>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
ANTHROPOGENIC AEROSOLS; RADIATIVE-TRANSFER; CLIMATE; TEMPERATURE; SCATTERING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
20
Recensione:
Indirizzi per estratti:
Citazione:
O. Boucher, "ON AEROSOL DIRECT SHORTWAVE FORCING AND THE HENYEY-GREENSTEIN PHASE FUNCTION", Journal of the atmospheric sciences, 55(1), 1998, pp. 128-134

Abstract

This technical note extends previous Mie calculations to show that there are complex relationships between the asymmetry parameter g and the upscatter fractions for monodirectional incident radiation beta(mu(0)). Except for intermediate zenith angles and for the upscatter fraction for diffuse radiation, there are significant differences between beta(mu(0)) predicted by the Mie theory and that approximated by a Henyey-Greenstein phase function. White the Henyey-Greenstein phase function is widely used in radiative transfer calculations to characterize aerosol or cloud droplet scattering, it may cause important discrepancies in the computation of the aerosol direct radiative forcing, depending on solar zenith angle, aerosol size, and refractive index. The implications of this work for aerosol and climate-related studies are also discussed.

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Documento generato il 14/12/18 alle ore 07:13:43