Fire effects on net radiation and energy partitioning: Contrasting responses of tundra and boreal forest ecosystems
The net radiation available to drive surface-atmosphere exchange is strongly influenced by albedo and surface temperature. Tower-based microclimatic and eddy covariance measurements in typical Alaskan black spruce and tundra ecosystems before and immediately after fire indicated a 10% decrease in ne...
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Language: | English |
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ftcdlib:qt6j31n2v2 2023-05-15T18:39:32+02:00 Fire effects on net radiation and energy partitioning: Contrasting responses of tundra and boreal forest ecosystems Chambers, S. D Randerson , J. T. Beringer, J. Chapin , F. S 2005-05-01 application/pdf http://www.escholarship.org/uc/item/6j31n2v2 english eng eScholarship, University of California qt6j31n2v2 http://www.escholarship.org/uc/item/6j31n2v2 Attribution (CC BY): http://creativecommons.org/licenses/by/3.0/ CC-BY Chambers, S. D; Randerson , J. T.; Beringer, J.; & Chapin , F. S. (2005). Fire effects on net radiation and energy partitioning: Contrasting responses of tundra and boreal forest ecosystems. Journal of Geophysical Research, 110(D9). doi:10.1029/2004JD005299. UC Irvine: Department of Earth System Science, UCI. Retrieved from: http://www.escholarship.org/uc/item/6j31n2v2 Physical Sciences and Mathematics boreal forest burning radiation balance tundra Picea Picea mariana article 2005 ftcdlib https://doi.org/10.1029/2004JD005299 2016-04-02T18:32:49Z The net radiation available to drive surface-atmosphere exchange is strongly influenced by albedo and surface temperature. Tower-based microclimatic and eddy covariance measurements in typical Alaskan black spruce and tundra ecosystems before and immediately after fire indicated a 10% decrease in net radiation over the burned spruce stand but a 12% increase in net radiation over the burned tundra surface. In both cases, there was increased partitioning of net radiation into sensible heat flux. In terms of absolute fluxes, however, fire increased average sensible heating over tundra by ∼50 W m−2 but caused little change in average sensible heat flux over the black spruce forest. This difference in fire effects occurred because fire altered the canopy characteristics (including surface roughness) more strongly in the forest than in the tundra, leading to a greater reduction in surface-atmosphere coupling over the forest. Article in Journal/Newspaper Tundra University of California: eScholarship Journal of Geophysical Research 110 D9 |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
English |
topic |
Physical Sciences and Mathematics boreal forest burning radiation balance tundra Picea Picea mariana |
spellingShingle |
Physical Sciences and Mathematics boreal forest burning radiation balance tundra Picea Picea mariana Chambers, S. D Randerson , J. T. Beringer, J. Chapin , F. S Fire effects on net radiation and energy partitioning: Contrasting responses of tundra and boreal forest ecosystems |
topic_facet |
Physical Sciences and Mathematics boreal forest burning radiation balance tundra Picea Picea mariana |
description |
The net radiation available to drive surface-atmosphere exchange is strongly influenced by albedo and surface temperature. Tower-based microclimatic and eddy covariance measurements in typical Alaskan black spruce and tundra ecosystems before and immediately after fire indicated a 10% decrease in net radiation over the burned spruce stand but a 12% increase in net radiation over the burned tundra surface. In both cases, there was increased partitioning of net radiation into sensible heat flux. In terms of absolute fluxes, however, fire increased average sensible heating over tundra by ∼50 W m−2 but caused little change in average sensible heat flux over the black spruce forest. This difference in fire effects occurred because fire altered the canopy characteristics (including surface roughness) more strongly in the forest than in the tundra, leading to a greater reduction in surface-atmosphere coupling over the forest. |
format |
Article in Journal/Newspaper |
author |
Chambers, S. D Randerson , J. T. Beringer, J. Chapin , F. S |
author_facet |
Chambers, S. D Randerson , J. T. Beringer, J. Chapin , F. S |
author_sort |
Chambers, S. D |
title |
Fire effects on net radiation and energy partitioning: Contrasting responses of tundra and boreal forest ecosystems |
title_short |
Fire effects on net radiation and energy partitioning: Contrasting responses of tundra and boreal forest ecosystems |
title_full |
Fire effects on net radiation and energy partitioning: Contrasting responses of tundra and boreal forest ecosystems |
title_fullStr |
Fire effects on net radiation and energy partitioning: Contrasting responses of tundra and boreal forest ecosystems |
title_full_unstemmed |
Fire effects on net radiation and energy partitioning: Contrasting responses of tundra and boreal forest ecosystems |
title_sort |
fire effects on net radiation and energy partitioning: contrasting responses of tundra and boreal forest ecosystems |
publisher |
eScholarship, University of California |
publishDate |
2005 |
url |
http://www.escholarship.org/uc/item/6j31n2v2 |
genre |
Tundra |
genre_facet |
Tundra |
op_source |
Chambers, S. D; Randerson , J. T.; Beringer, J.; & Chapin , F. S. (2005). Fire effects on net radiation and energy partitioning: Contrasting responses of tundra and boreal forest ecosystems. Journal of Geophysical Research, 110(D9). doi:10.1029/2004JD005299. UC Irvine: Department of Earth System Science, UCI. Retrieved from: http://www.escholarship.org/uc/item/6j31n2v2 |
op_relation |
qt6j31n2v2 http://www.escholarship.org/uc/item/6j31n2v2 |
op_rights |
Attribution (CC BY): http://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1029/2004JD005299 |
container_title |
Journal of Geophysical Research |
container_volume |
110 |
container_issue |
D9 |
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1766228460173262848 |