Effects of Serial Dependence and Large-Scale Tropospheric Circulation on Midlatitude North American Terrestrial Carbon Dioxide Exchange
Linear regression was used to relate modes of tropospheric circulation variability to estimates of gross ecosystem production (GEP) and ecosystem respiration (ER) measured at 14 midlatitude North American eddy covariance (EC) towers. The North Atlantic Oscillation (NAO) exhibited a north–south gradi...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.511.7969 2023-05-15T17:34:36+02:00 Effects of Serial Dependence and Large-Scale Tropospheric Circulation on Midlatitude North American Terrestrial Carbon Dioxide Exchange Robbie A. Hember Peter M. Lafleur The Pennsylvania State University CiteSeerX Archives 2006 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.511.7969 http://flux.aos.wisc.edu/twiki/pub/Main/WetlandPapers/i1520-0442-21-4-751.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.511.7969 http://flux.aos.wisc.edu/twiki/pub/Main/WetlandPapers/i1520-0442-21-4-751.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://flux.aos.wisc.edu/twiki/pub/Main/WetlandPapers/i1520-0442-21-4-751.pdf text 2006 ftciteseerx 2016-01-08T09:40:55Z Linear regression was used to relate modes of tropospheric circulation variability to estimates of gross ecosystem production (GEP) and ecosystem respiration (ER) measured at 14 midlatitude North American eddy covariance (EC) towers. The North Atlantic Oscillation (NAO) exhibited a north–south gradient in its effect on fluxes, with negative influence on fluxes at central and northeastern stations and positive influence on fluxes at southeastern stations. During spring, average values of GEP and ER within the northern “cold ” sector decreased by 22 and 12 g C m2 (18 % and 11%), respectively, in response to a unit increase (1 standard deviation) in the expansion coefficient of the NAO mode. Despite a northward advancement of the “warm ” sector during summer, GEP and ER remained negatively correlated with the NAO at northern stations, decreasing on average by 48 and 30 g C m2 (8 % and 6%), respectively. During spring, the North Pacific Oscillation (NPO) reduced GEP and ER at central and northeastern stations on average by 20 and 7 g C m2 (16 % and 6%) and increased GEP and ER at southern and west coast stations on average by 53 and 49 g C m2 (12 % and 17%) in response to a unit increase in the NPO. This pattern persisted into summer, only shifted northward, with flux decreases of 19 and 24 g C m2 (3 % and 5%) at northern stations and increases of 72 and 82 g C m2 (9 % and 16%) at central stations. The direction of the Text North Atlantic North Atlantic oscillation Unknown Pacific |
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ftciteseerx |
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English |
description |
Linear regression was used to relate modes of tropospheric circulation variability to estimates of gross ecosystem production (GEP) and ecosystem respiration (ER) measured at 14 midlatitude North American eddy covariance (EC) towers. The North Atlantic Oscillation (NAO) exhibited a north–south gradient in its effect on fluxes, with negative influence on fluxes at central and northeastern stations and positive influence on fluxes at southeastern stations. During spring, average values of GEP and ER within the northern “cold ” sector decreased by 22 and 12 g C m2 (18 % and 11%), respectively, in response to a unit increase (1 standard deviation) in the expansion coefficient of the NAO mode. Despite a northward advancement of the “warm ” sector during summer, GEP and ER remained negatively correlated with the NAO at northern stations, decreasing on average by 48 and 30 g C m2 (8 % and 6%), respectively. During spring, the North Pacific Oscillation (NPO) reduced GEP and ER at central and northeastern stations on average by 20 and 7 g C m2 (16 % and 6%) and increased GEP and ER at southern and west coast stations on average by 53 and 49 g C m2 (12 % and 17%) in response to a unit increase in the NPO. This pattern persisted into summer, only shifted northward, with flux decreases of 19 and 24 g C m2 (3 % and 5%) at northern stations and increases of 72 and 82 g C m2 (9 % and 16%) at central stations. The direction of the |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Robbie A. Hember Peter M. Lafleur |
spellingShingle |
Robbie A. Hember Peter M. Lafleur Effects of Serial Dependence and Large-Scale Tropospheric Circulation on Midlatitude North American Terrestrial Carbon Dioxide Exchange |
author_facet |
Robbie A. Hember Peter M. Lafleur |
author_sort |
Robbie A. Hember |
title |
Effects of Serial Dependence and Large-Scale Tropospheric Circulation on Midlatitude North American Terrestrial Carbon Dioxide Exchange |
title_short |
Effects of Serial Dependence and Large-Scale Tropospheric Circulation on Midlatitude North American Terrestrial Carbon Dioxide Exchange |
title_full |
Effects of Serial Dependence and Large-Scale Tropospheric Circulation on Midlatitude North American Terrestrial Carbon Dioxide Exchange |
title_fullStr |
Effects of Serial Dependence and Large-Scale Tropospheric Circulation on Midlatitude North American Terrestrial Carbon Dioxide Exchange |
title_full_unstemmed |
Effects of Serial Dependence and Large-Scale Tropospheric Circulation on Midlatitude North American Terrestrial Carbon Dioxide Exchange |
title_sort |
effects of serial dependence and large-scale tropospheric circulation on midlatitude north american terrestrial carbon dioxide exchange |
publishDate |
2006 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.511.7969 http://flux.aos.wisc.edu/twiki/pub/Main/WetlandPapers/i1520-0442-21-4-751.pdf |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
http://flux.aos.wisc.edu/twiki/pub/Main/WetlandPapers/i1520-0442-21-4-751.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.511.7969 http://flux.aos.wisc.edu/twiki/pub/Main/WetlandPapers/i1520-0442-21-4-751.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766133497523601408 |