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An analysis of the carbon balance of the Arctic Basin from 1997 to 2006

Abstract

This study used several model-based tools to analyse the dynamics of the Arctic Basin between 1997 and 2006 as a linked system of land-ocean-atmosphere C exchange. The analysis estimates that terrestrial areas of the Arctic Basin lost 62.9 Tg C yr-1 and that the Arctic Ocean gained 94.1 Tg C yr-1. Arctic lands and oceans were a net CO{sub 2} sink of 108.9 Tg C yr-1, which is within the range of uncertainty in estimates from atmospheric inversions. Although both lands and oceans of the Arctic were estimated to be CO{sub 2} sinks, the land sink diminished in strength because of increased fire disturbance compared to previous decades, while the ocean sink increased in strength because of increased biological pump activity associated with reduced sea ice cover. Terrestrial areas of the Arctic were a net source of 41.5 Tg CH{sub 4} yr-1 that increased by 0.6 Tg CH{sub 4} yr-1 during the decade of analysis, a magnitude that is comparable with an atmospheric inversion of CH{sub 4}. Because the radiative forcing of the estimated CH{sub 4} emissions is much greater than the CO{sub 2} sink, the analysis suggests that the Arctic Basin is a substantial net source of green house  More>>
Authors:
McGuire, A. D. (U S Geological Survey, Alaska Cooperative Fish and Wildlife Research Unit, Univ. of Alaska Fairbanks, Fairbanks, AK (United States)), e-mail: admcguire@alaska.edu; Hayes, D J; [1]  Kicklighter, D W [2] 
  1. Institute of Arctic Biology, Univ. of Alaska Fairbanks, Fairbanks, AK (United States)
  2. Marine Biological Laboratory, The Ecosystems Center, Woods Hole, MA (United States); and others
Publication Date:
Nov 15, 2010
Product Type:
Journal Article
Resource Relation:
Journal Name: Tellus, Series B: Chemical and Physical Meteorology; Journal Volume: 62B; Journal Issue: 5; Conference: ICDC8: 8. international carbon dioxide conference, Jena (Germany), 09/13/2009--09/19/2009; Other Information: Conference Literature; 83 refs., 12 figs., 3 tabs.; 10.1111/J.1600-0889.2010.00497.X
Subject:
54 ENVIRONMENTAL SCIENCES; CARBON; CARBON DIOXIDE; METHANE; ARCTIC REGIONS; EMISSION; CARBON CYCLE
OSTI ID:
1010806
Country of Origin:
Sweden
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0280-6509; TRN: SE1107074
Availability:
Available from DOI: http://dx.doi.org/10.1111/j.1600-0889.2010.00497.x
Submitting Site:
SWD
Size:
page(s) 455-474
Announcement Date:
Apr 11, 2011

Citation Formats

McGuire, A. D. (U S Geological Survey, Alaska Cooperative Fish and Wildlife Research Unit, Univ. of Alaska Fairbanks, Fairbanks, AK (United States)), e-mail: admcguire@alaska.edu, Hayes, D J, and Kicklighter, D W. An analysis of the carbon balance of the Arctic Basin from 1997 to 2006. Sweden: N. p., 2010. Web. doi:10.1111/J.1600-0889.2010.00497.X.
McGuire, A. D. (U S Geological Survey, Alaska Cooperative Fish and Wildlife Research Unit, Univ. of Alaska Fairbanks, Fairbanks, AK (United States)), e-mail: admcguire@alaska.edu, Hayes, D J, & Kicklighter, D W. An analysis of the carbon balance of the Arctic Basin from 1997 to 2006. Sweden. doi:10.1111/J.1600-0889.2010.00497.X.
McGuire, A. D. (U S Geological Survey, Alaska Cooperative Fish and Wildlife Research Unit, Univ. of Alaska Fairbanks, Fairbanks, AK (United States)), e-mail: admcguire@alaska.edu, Hayes, D J, and Kicklighter, D W. 2010. "An analysis of the carbon balance of the Arctic Basin from 1997 to 2006." Sweden. doi:10.1111/J.1600-0889.2010.00497.X. https://www.osti.gov/servlets/purl/10.1111/J.1600-0889.2010.00497.X.
@misc{etde_1010806,
title = {An analysis of the carbon balance of the Arctic Basin from 1997 to 2006}
author = {McGuire, A. D. (U S Geological Survey, Alaska Cooperative Fish and Wildlife Research Unit, Univ. of Alaska Fairbanks, Fairbanks, AK (United States)), e-mail: admcguire@alaska.edu, Hayes, D J, and Kicklighter, D W}
abstractNote = {This study used several model-based tools to analyse the dynamics of the Arctic Basin between 1997 and 2006 as a linked system of land-ocean-atmosphere C exchange. The analysis estimates that terrestrial areas of the Arctic Basin lost 62.9 Tg C yr-1 and that the Arctic Ocean gained 94.1 Tg C yr-1. Arctic lands and oceans were a net CO{sub 2} sink of 108.9 Tg C yr-1, which is within the range of uncertainty in estimates from atmospheric inversions. Although both lands and oceans of the Arctic were estimated to be CO{sub 2} sinks, the land sink diminished in strength because of increased fire disturbance compared to previous decades, while the ocean sink increased in strength because of increased biological pump activity associated with reduced sea ice cover. Terrestrial areas of the Arctic were a net source of 41.5 Tg CH{sub 4} yr-1 that increased by 0.6 Tg CH{sub 4} yr-1 during the decade of analysis, a magnitude that is comparable with an atmospheric inversion of CH{sub 4}. Because the radiative forcing of the estimated CH{sub 4} emissions is much greater than the CO{sub 2} sink, the analysis suggests that the Arctic Basin is a substantial net source of green house gas forcing to the climate system}
doi = {10.1111/J.1600-0889.2010.00497.X}
journal = {Tellus, Series B: Chemical and Physical Meteorology}
issue = {5}
volume = {62B}
place = {Sweden}
year = {2010}
month = {Nov}
}