Smoking Rain Clouds over the Amazon
Andreae, Meinrat O. ; Rosenfeld, Daniel ; Artaxo, P. ; Costa, A. A. ; Frank, Göran LU
; Longo, K. M.
and Silva-Dias, M. A. F.
(2004)
In Science
303(5662).
p.1337-1342
- Abstract
- Heavy smoke from forest fires in the Amazon was observed to reduce cloud droplet size and so delay the onset of precipitation from 1.5 kilometers above cloud base in pristine clouds to more than 5 kilometers in polluted clouds and more than 7 kilometers in pyro-clouds. Suppression of low-level rainout and aerosol washout allows transport of water and smoke to upper levels, where the clouds appear “smoking” as they detrain much of the pollution. Elevating the onset of precipitation allows invigoration of the updrafts,causing intense thunderstorms, large hail, and greater likelihood for overshooting cloud tops into the stratosphere. There,detrained pollutants and water vapor would have profound radiative impacts on the climate system. The... (More)
- Heavy smoke from forest fires in the Amazon was observed to reduce cloud droplet size and so delay the onset of precipitation from 1.5 kilometers above cloud base in pristine clouds to more than 5 kilometers in polluted clouds and more than 7 kilometers in pyro-clouds. Suppression of low-level rainout and aerosol washout allows transport of water and smoke to upper levels, where the clouds appear “smoking” as they detrain much of the pollution. Elevating the onset of precipitation allows invigoration of the updrafts,causing intense thunderstorms, large hail, and greater likelihood for overshooting cloud tops into the stratosphere. There,detrained pollutants and water vapor would have profound radiative impacts on the climate system. The invigorated storms release the latent heat higher in the atmosphere. This should substantially affect the regional and global circulation systems. Together,these processes affect the water cycle, the pollution burden of the atmosphere, and the dynamics of atmospheric circulation. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1041305
- author
- Andreae, Meinrat O.
; Rosenfeld, Daniel
; Artaxo, P.
; Costa, A. A.
; Frank, Göran
LU
; Longo, K. M.
and Silva-Dias, M. A. F.
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Science
- volume
- 303
- issue
- 5662
- pages
- 1337 - 1342
- publisher
- American Association for the Advancement of Science (AAAS)
- external identifiers
-
- scopus:1442354691
- ISSN
- 1095-9203
- DOI
- 10.1126/science.1092779
- language
- English
- LU publication?
- no
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Nuclear Physics (Faculty of Technology) (011013007)
- id
- cf59e3fa-107a-4b0c-bbf3-358f8116a473 (old id 1041305)
- date added to LUP
- 2016-04-01 16:10:39
- date last changed
- 2022-06-10 22:06:44
@article{cf59e3fa-107a-4b0c-bbf3-358f8116a473,
abstract = {{Heavy smoke from forest fires in the Amazon was observed to reduce cloud droplet size and so delay the onset of precipitation from 1.5 kilometers above cloud base in pristine clouds to more than 5 kilometers in polluted clouds and more than 7 kilometers in pyro-clouds. Suppression of low-level rainout and aerosol washout allows transport of water and smoke to upper levels, where the clouds appear “smoking” as they detrain much of the pollution. Elevating the onset of precipitation allows invigoration of the updrafts,causing intense thunderstorms, large hail, and greater likelihood for overshooting cloud tops into the stratosphere. There,detrained pollutants and water vapor would have profound radiative impacts on the climate system. The invigorated storms release the latent heat higher in the atmosphere. This should substantially affect the regional and global circulation systems. Together,these processes affect the water cycle, the pollution burden of the atmosphere, and the dynamics of atmospheric circulation.}},
author = {{Andreae, Meinrat O. and Rosenfeld, Daniel and Artaxo, P. and Costa, A. A. and Frank, Göran and Longo, K. M. and Silva-Dias, M. A. F.}},
issn = {{1095-9203}},
language = {{eng}},
number = {{5662}},
pages = {{1337--1342}},
publisher = {{American Association for the Advancement of Science (AAAS)}},
series = {{Science}},
title = {{Smoking Rain Clouds over the Amazon}},
url = {{http://dx.doi.org/10.1126/science.1092779}},
doi = {{10.1126/science.1092779}},
volume = {{303}},
year = {{2004}},
}