Measurement of the Effect of Amazon Smoke on Inhibition of Cloud Formation-Reference-Cited by-同舟云学术

Measurement of the Effect of Amazon Smoke on Inhibition of Cloud Formation

Published:2004-02-27 Issue:5662 Volume:303 Page:1342-1345
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Koren Ilan¹²³,Kaufman Yoram J.¹²³,Remer Lorraine A.¹²³,Martins Jose V.¹²³

Affiliation:

1. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD 20771, USA.

2. National Research Council, Washington, DC 20001, USA.

3. Joint Center for Earth Systems Technology, University of Maryland, Baltimore County, Baltimore, MD 21250, USA.

Abstract

Urban air pollution and smoke from fires have been modeled to reduce cloud formation by absorbing sunlight, thereby cooling the surface and heating the atmosphere. Satellite data over the Amazon region during the biomass burning season showed that scattered cumulus cloud cover was reduced from 38%in clean conditions to 0%for heavy smoke (optical depth of 1.3). This response to the smoke radiative effect reverses the regional smoke instantaneous forcing of climate from –28 watts per square meter in cloud-free conditions to +8 watts per square meter once the reduction of cloud cover is accounted for.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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