Energy balance differences and hydrologic impacts across the northern treeline
Abstract Energy balance measurements were made over wet tundra and a nearby open conifer forest near Churchill, Manitoba during the summer periods of 1989 and 1990. Little difference was found between net radiation, Q *, and ground heat fluxes, Q G , for the two sites: Q * at the forest exceeded Q *...
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crwiley:10.1002/joc.3370120208 2024-06-02T08:05:22+00:00 Energy balance differences and hydrologic impacts across the northern treeline Lafleur, Peter M. Rouse, Wayne R. Carlson, Derek W. 1992 http://dx.doi.org/10.1002/joc.3370120208 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.3370120208 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.3370120208 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 12, issue 2, page 193-203 ISSN 0899-8418 1097-0088 journal-article 1992 crwiley https://doi.org/10.1002/joc.3370120208 2024-05-03T11:04:15Z Abstract Energy balance measurements were made over wet tundra and a nearby open conifer forest near Churchill, Manitoba during the summer periods of 1989 and 1990. Little difference was found between net radiation, Q *, and ground heat fluxes, Q G , for the two sites: Q * at the forest exceeded Q * at the tundra by only 2–5 per cent; Q G averaged 9 and 12 per cent of Q * for the forest and tundra, respectively. The sensible, Q H , and latent, Q E , heat fluxes showed the greatest differences between the sites. When surface moisture was not limiting, Q E was largest for the tundra and Q H was largest at the forest. During a drying cycle in 1989 the energy balances for the two sites were similar. An analysis of wind direction on energy partitioning suggests that the tundra was more responsive to meteorological changes than the forest. The implications of this study for surface water balances in the subarctic are discussed. Article in Journal/Newspaper Churchill Subarctic Tundra Wiley Online Library International Journal of Climatology 12 2 193 203 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Energy balance measurements were made over wet tundra and a nearby open conifer forest near Churchill, Manitoba during the summer periods of 1989 and 1990. Little difference was found between net radiation, Q *, and ground heat fluxes, Q G , for the two sites: Q * at the forest exceeded Q * at the tundra by only 2–5 per cent; Q G averaged 9 and 12 per cent of Q * for the forest and tundra, respectively. The sensible, Q H , and latent, Q E , heat fluxes showed the greatest differences between the sites. When surface moisture was not limiting, Q E was largest for the tundra and Q H was largest at the forest. During a drying cycle in 1989 the energy balances for the two sites were similar. An analysis of wind direction on energy partitioning suggests that the tundra was more responsive to meteorological changes than the forest. The implications of this study for surface water balances in the subarctic are discussed. |
format |
Article in Journal/Newspaper |
author |
Lafleur, Peter M. Rouse, Wayne R. Carlson, Derek W. |
spellingShingle |
Lafleur, Peter M. Rouse, Wayne R. Carlson, Derek W. Energy balance differences and hydrologic impacts across the northern treeline |
author_facet |
Lafleur, Peter M. Rouse, Wayne R. Carlson, Derek W. |
author_sort |
Lafleur, Peter M. |
title |
Energy balance differences and hydrologic impacts across the northern treeline |
title_short |
Energy balance differences and hydrologic impacts across the northern treeline |
title_full |
Energy balance differences and hydrologic impacts across the northern treeline |
title_fullStr |
Energy balance differences and hydrologic impacts across the northern treeline |
title_full_unstemmed |
Energy balance differences and hydrologic impacts across the northern treeline |
title_sort |
energy balance differences and hydrologic impacts across the northern treeline |
publisher |
Wiley |
publishDate |
1992 |
url |
http://dx.doi.org/10.1002/joc.3370120208 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.3370120208 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.3370120208 |
genre |
Churchill Subarctic Tundra |
genre_facet |
Churchill Subarctic Tundra |
op_source |
International Journal of Climatology volume 12, issue 2, page 193-203 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.3370120208 |
container_title |
International Journal of Climatology |
container_volume |
12 |
container_issue |
2 |
container_start_page |
193 |
op_container_end_page |
203 |
_version_ |
1800750162215174144 |