Continental-Scale Partitioning of Fire Emissions During the 1997 to 2001 El Niño/La Niña Period-Reference-Cited by-同舟云学术

Continental-Scale Partitioning of Fire Emissions During the 1997 to 2001 El Niño/La Niña Period

Published:2004-01-02 Issue:5654 Volume:303 Page:73-76
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

van der Werf Guido R.¹²³⁴⁵,Randerson James T.¹²³⁴⁵,Collatz G. James¹²³⁴⁵,Giglio Louis¹²³⁴⁵,Kasibhatla Prasad S.¹²³⁴⁵,Arellano Avelino F.¹²³⁴⁵,Olsen Seth C.¹²³⁴⁵,Kasischke Eric S.¹²³⁴⁵

Affiliation:

1. U.S. Department of Agriculture–Foreign Agricultural Service, National Aeronautics and Space Administration–Goddard Space Flight Center (NASA-GSFC), Code 923, Greenbelt Road, Greenbelt, MD 20771, USA.

2. Divisions of Geological and Planetary Sciences and Engineering and Applied Science, California Institute of Technology, Mail Stop 100-23, Pasadena, CA 91125, USA.

3. NASA-GSFC, Code 923, Greenbelt Road, Greenbelt, MD 20771, USA.

4. Science Systems and Applications, Inc., NASA-GSFC, Code 923, Greenbelt Road, Greenbelt, MD 20771, USA.

5. Nicholas School of the Environment and Earth Sciences, Duke University, Durham, NC 27708, USA.

Abstract

During the 1997 to 1998 El Niño, drought conditions triggered widespread increases in fire activity, releasing CH 4 and CO 2 to the atmosphere. We evaluated the contribution of fires from different continents to variability in these greenhouse gases from 1997 to 2001, using satellite-based estimates of fire activity, biogeochemical modeling, and an inverse analysis of atmospheric CO anomalies. During the 1997 to 1998 El Niño, the fire emissions anomaly was 2.1 ± 0.8 petagrams of carbon, or 66 ± 24% of the CO 2 growth rate anomaly. The main contributors were Southeast Asia (60%), Central and South America (30%), and boreal regions of Eurasia and North America (10%).

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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