Biosphere/atmosphere CO2 exchange in tundra ecosystems - Community characteristics and relationships with multispectral surface reflectance
CO2 exchange rates were measured at selected tundra sites near Bethel, Alaska using portable, climate-controlled, instrumented enclosures. The empirically modeled exchange rate for a representative area of vegetated tundra was 1.2 +/- 1.2 g/sq m/d, compared to a tower-measured exchange over the same...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19930032546 2023-05-15T18:39:32+02:00 Biosphere/atmosphere CO2 exchange in tundra ecosystems - Community characteristics and relationships with multispectral surface reflectance Whiting, Gary J. Bartlett, David S. Fan, Song-Miao Bakwin, Peter S. Wofsy, Steven C. Unclassified, Unlimited, Publicly available Oct. 30, 1992 http://ntrs.nasa.gov/search.jsp?R=19930032546 unknown http://ntrs.nasa.gov/search.jsp?R=19930032546 Accession ID: 93A16543 Copyright Other Sources 46 Journal of Geophysical Research; 97; D15; p. 16,671-16,680. 1992 ftnasantrs 2012-02-15T19:59:09Z CO2 exchange rates were measured at selected tundra sites near Bethel, Alaska using portable, climate-controlled, instrumented enclosures. The empirically modeled exchange rate for a representative area of vegetated tundra was 1.2 +/- 1.2 g/sq m/d, compared to a tower-measured exchange over the same time period of 1.1 +.0- 1.2 g/sq m/d. Net exchange in response to varying light levels was compared to wet meadow and dry upland tundra, and to the net exchange measured by the micrometeoroidal tower technique. The multispectral reflectance properties of the sites were measured and related to exchange rates in order to provide a quantitative foundation for the use of satellite remote sensing to monitor biosphere/atmosphere CO2 exchange in the tundra biome. Other/Unknown Material Tundra Alaska NASA Technical Reports Server (NTRS) |
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NASA Technical Reports Server (NTRS) |
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unknown |
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46 |
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46 Whiting, Gary J. Bartlett, David S. Fan, Song-Miao Bakwin, Peter S. Wofsy, Steven C. Biosphere/atmosphere CO2 exchange in tundra ecosystems - Community characteristics and relationships with multispectral surface reflectance |
topic_facet |
46 |
description |
CO2 exchange rates were measured at selected tundra sites near Bethel, Alaska using portable, climate-controlled, instrumented enclosures. The empirically modeled exchange rate for a representative area of vegetated tundra was 1.2 +/- 1.2 g/sq m/d, compared to a tower-measured exchange over the same time period of 1.1 +.0- 1.2 g/sq m/d. Net exchange in response to varying light levels was compared to wet meadow and dry upland tundra, and to the net exchange measured by the micrometeoroidal tower technique. The multispectral reflectance properties of the sites were measured and related to exchange rates in order to provide a quantitative foundation for the use of satellite remote sensing to monitor biosphere/atmosphere CO2 exchange in the tundra biome. |
format |
Other/Unknown Material |
author |
Whiting, Gary J. Bartlett, David S. Fan, Song-Miao Bakwin, Peter S. Wofsy, Steven C. |
author_facet |
Whiting, Gary J. Bartlett, David S. Fan, Song-Miao Bakwin, Peter S. Wofsy, Steven C. |
author_sort |
Whiting, Gary J. |
title |
Biosphere/atmosphere CO2 exchange in tundra ecosystems - Community characteristics and relationships with multispectral surface reflectance |
title_short |
Biosphere/atmosphere CO2 exchange in tundra ecosystems - Community characteristics and relationships with multispectral surface reflectance |
title_full |
Biosphere/atmosphere CO2 exchange in tundra ecosystems - Community characteristics and relationships with multispectral surface reflectance |
title_fullStr |
Biosphere/atmosphere CO2 exchange in tundra ecosystems - Community characteristics and relationships with multispectral surface reflectance |
title_full_unstemmed |
Biosphere/atmosphere CO2 exchange in tundra ecosystems - Community characteristics and relationships with multispectral surface reflectance |
title_sort |
biosphere/atmosphere co2 exchange in tundra ecosystems - community characteristics and relationships with multispectral surface reflectance |
publishDate |
1992 |
url |
http://ntrs.nasa.gov/search.jsp?R=19930032546 |
op_coverage |
Unclassified, Unlimited, Publicly available |
genre |
Tundra Alaska |
genre_facet |
Tundra Alaska |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19930032546 Accession ID: 93A16543 |
op_rights |
Copyright |
_version_ |
1766228465448648704 |