Land‐surface characterization in greenhouse climate simulations
Abstract A simplified Holdridge‐type vegetation prediction scheme has been coupled to a version of the NCAR community climate model (CCM1‐Oz) that includes the biosphere‐atmosphere transfer scheme (BATS) and a mixed‐layer ocean. This interactive vegetation climate model has been used to conduct two...
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crwiley:10.1002/joc.3370141002 2024-06-02T08:15:27+00:00 Land‐surface characterization in greenhouse climate simulations Henderson‐Sellers, A. McGuffie, K. 1994 http://dx.doi.org/10.1002/joc.3370141002 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.3370141002 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.3370141002 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 14, issue 10, page 1065-1094 ISSN 0899-8418 1097-0088 journal-article 1994 crwiley https://doi.org/10.1002/joc.3370141002 2024-05-03T10:52:10Z Abstract A simplified Holdridge‐type vegetation prediction scheme has been coupled to a version of the NCAR community climate model (CCM1‐Oz) that includes the biosphere‐atmosphere transfer scheme (BATS) and a mixed‐layer ocean. This interactive vegetation climate model has been used to conduct two complementary CO 2 ‐doubling experiments: an instantaneous 2 x CO 2 simulation (15 years in total) and a fast, transiently increasing CO 2 simulation (45 years in total). There are some differences in the predicted vegetation distributions and areas. However, there is agreement that in a warmed world the vegetation type termed ‘agriculture’ increases in area at the expense of deciduous needle‐leaf trees and short grass; and the tundra extent, already underestimated, decreases further whereas deserts and the deciduous broadleaf tree areas expand. The overall vegetation areas predicted are not particularly sensitive to initialization, although effects of different initialization can be monitored for 1–2 years. On the other hand, when the sensitivity of the modelled climate to the inclusion of some aspects of an interactive biosphere is examined, it is found that annually updated continental characteristics do not disrupt the climate simulation but do modify zonal temperatures and precipitation and increase continental evaporation. The latter intensifies the Hadley circulation, especially in July, and, thus, leads to increased evaporation globally. These results, if corroborated by other similar studies, indicate that simple, post facto application of vegetation diagnostic schemes once climatic equilibrium is achieved may be diagnosing vegetation from an incorrect climatic state. Article in Journal/Newspaper Tundra Wiley Online Library International Journal of Climatology 14 10 1065 1094 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract A simplified Holdridge‐type vegetation prediction scheme has been coupled to a version of the NCAR community climate model (CCM1‐Oz) that includes the biosphere‐atmosphere transfer scheme (BATS) and a mixed‐layer ocean. This interactive vegetation climate model has been used to conduct two complementary CO 2 ‐doubling experiments: an instantaneous 2 x CO 2 simulation (15 years in total) and a fast, transiently increasing CO 2 simulation (45 years in total). There are some differences in the predicted vegetation distributions and areas. However, there is agreement that in a warmed world the vegetation type termed ‘agriculture’ increases in area at the expense of deciduous needle‐leaf trees and short grass; and the tundra extent, already underestimated, decreases further whereas deserts and the deciduous broadleaf tree areas expand. The overall vegetation areas predicted are not particularly sensitive to initialization, although effects of different initialization can be monitored for 1–2 years. On the other hand, when the sensitivity of the modelled climate to the inclusion of some aspects of an interactive biosphere is examined, it is found that annually updated continental characteristics do not disrupt the climate simulation but do modify zonal temperatures and precipitation and increase continental evaporation. The latter intensifies the Hadley circulation, especially in July, and, thus, leads to increased evaporation globally. These results, if corroborated by other similar studies, indicate that simple, post facto application of vegetation diagnostic schemes once climatic equilibrium is achieved may be diagnosing vegetation from an incorrect climatic state. |
format |
Article in Journal/Newspaper |
author |
Henderson‐Sellers, A. McGuffie, K. |
spellingShingle |
Henderson‐Sellers, A. McGuffie, K. Land‐surface characterization in greenhouse climate simulations |
author_facet |
Henderson‐Sellers, A. McGuffie, K. |
author_sort |
Henderson‐Sellers, A. |
title |
Land‐surface characterization in greenhouse climate simulations |
title_short |
Land‐surface characterization in greenhouse climate simulations |
title_full |
Land‐surface characterization in greenhouse climate simulations |
title_fullStr |
Land‐surface characterization in greenhouse climate simulations |
title_full_unstemmed |
Land‐surface characterization in greenhouse climate simulations |
title_sort |
land‐surface characterization in greenhouse climate simulations |
publisher |
Wiley |
publishDate |
1994 |
url |
http://dx.doi.org/10.1002/joc.3370141002 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.3370141002 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.3370141002 |
genre |
Tundra |
genre_facet |
Tundra |
op_source |
International Journal of Climatology volume 14, issue 10, page 1065-1094 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.3370141002 |
container_title |
International Journal of Climatology |
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14 |
container_issue |
10 |
container_start_page |
1065 |
op_container_end_page |
1094 |
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1800739623821901824 |