Document Detail


Large variations in Southern Hemisphere biomass burning during the last 650 years.
MedLine Citation:
PMID:  21127215     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
We present a 650-year Antarctic ice core record of concentration and isotopic ratios (δ(13)C and δ(18)O) of atmospheric carbon monoxide. Concentrations decreased by ~25% (14 parts per billion by volume) from the mid-1300s to the 1600s then recovered completely by the late 1800s. δ(13)C and δ(18)O decreased by about 2 and 4 per mil (‰), respectively, from the mid-1300s to the 1600s then increased by about 2.5 and 4‰ by the late 1800s. These observations and isotope mass balance model results imply that large variations in the degree of biomass burning in the Southern Hemisphere occurred during the last 650 years, with a decrease by about 50% in the 1600s, an increase of about 100% by the late 1800s, and another decrease by about 70% from the late 1800s to present day.
Authors:
Z Wang; J Chappellaz; K Park; J E Mak
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2010-12-02
Journal Detail:
Title:  Science (New York, N.Y.)     Volume:  330     ISSN:  1095-9203     ISO Abbreviation:  Science     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-12-17     Completed Date:  2011-01-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0404511     Medline TA:  Science     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1663-6     Citation Subset:  -    
Affiliation:
Institute for Terrestrial and Planetary Atmospheres/School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY 11794-5000, USA.
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Comment In:
Science. 2010 Dec 17;330(6011):1636-7   [PMID:  21164005 ]

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