Synoptic variations in atmospheric CO2 at Cape Grim: a model intercomparison
被引:13
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作者:
Law, Rachel M.
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机构:
CSIRO Marine & Atmospher Res, Ctr Australian Weather & Climate Res, Aspendale, Vic 3195, AustraliaCSIRO Marine & Atmospher Res, Ctr Australian Weather & Climate Res, Aspendale, Vic 3195, Australia
Law, Rachel M.
[1
]
Steele, L. Paul
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机构:
CSIRO Marine & Atmospher Res, Ctr Australian Weather & Climate Res, Aspendale, Vic 3195, AustraliaCSIRO Marine & Atmospher Res, Ctr Australian Weather & Climate Res, Aspendale, Vic 3195, Australia
Steele, L. Paul
[1
]
Krummel, Paul B.
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机构:
CSIRO Marine & Atmospher Res, Ctr Australian Weather & Climate Res, Aspendale, Vic 3195, AustraliaCSIRO Marine & Atmospher Res, Ctr Australian Weather & Climate Res, Aspendale, Vic 3195, Australia
Krummel, Paul B.
[1
]
Zahorowski, Wlodek
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机构:
Australian Nucl Sci & Technol Org, Kirrawee, NSW 2232, AustraliaCSIRO Marine & Atmospher Res, Ctr Australian Weather & Climate Res, Aspendale, Vic 3195, Australia
Zahorowski, Wlodek
[2
]
机构:
[1] CSIRO Marine & Atmospher Res, Ctr Australian Weather & Climate Res, Aspendale, Vic 3195, Australia
[2] Australian Nucl Sci & Technol Org, Kirrawee, NSW 2232, Australia
来源:
TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY
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2010年
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62卷
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05期
关键词:
INVERSIONS;
D O I:
10.1111/j.1600-0889.2010.00470.x
中图分类号:
P4 [大气科学(气象学)];
学科分类号:
0706 ;
070601 ;
摘要:
A 'TransCom' model intercomparison is used to assess how well synoptic and diurnal variations of carbon dioxide (CO2) and 222Rn (radon) can be modelled at the coastal site, Cape Grim, Australia. Each model was run with prescribed fluxes and forced with analysed meteorology for 2000-2003. Twelve models were chosen for analysis based on each model's ability to differentiate baseline CO2 concentrations from non-baseline CO2 (influenced by regional land fluxes). Analysis focused on non-baseline events during 2002-2003. Radon was better simulated than CO2, indicating that a spatially uniform radon land flux is a reasonable assumption and that regional-scale transport was adequately captured by the models. For both radon and CO2, the ensemble model mean generally performed better than any individual model. Two case studies highlight common problems with the simulations. First, in summer and autumn the Cape Grim observations are sometimes influenced by Tasmanian rather than mainland Australian fluxes. These periods are poorly simulated. Secondly, an event with an urban plume demonstrates how the relatively low spatial resolution of the input CO2 fluxes limits the quality of the simulations. Analysis of periods with below baseline concentration indicates the possible influence of carbon uptake by winter crops in southern mainland Australia.
机构:
Calif State Univ Monterey Bay, Div Sci & Environm Policy, Seaside, CA 93955 USA
NASA, Biospher Sci Branch, Ames Res Ctr, Moffett Field, CA 94035 USACalif State Univ Monterey Bay, Div Sci & Environm Policy, Seaside, CA 93955 USA
Wang, Weile
Ciais, Philippe
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机构:
Lab Sci Climat & Environm, F-91191 Gif Sur Yvette, FranceCalif State Univ Monterey Bay, Div Sci & Environm Policy, Seaside, CA 93955 USA
Ciais, Philippe
Nemani, Ramakrishna R.
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h-index: 0
机构:
NASA, Adv Supercomp Div, Ames Res Ctr, Moffett Field, CA 94035 USACalif State Univ Monterey Bay, Div Sci & Environm Policy, Seaside, CA 93955 USA
Nemani, Ramakrishna R.
Canadell, Josep G.
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机构:
Commonwealth Sci & Ind Res Org Marine & Atmospher, Global Carbon Project, Canberra, ACT 2601, AustraliaCalif State Univ Monterey Bay, Div Sci & Environm Policy, Seaside, CA 93955 USA
Canadell, Josep G.
Piao, Shilong
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机构:
Peking Univ, Dept Ecol, Beijing 100871, Peoples R China
Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100085, Peoples R ChinaCalif State Univ Monterey Bay, Div Sci & Environm Policy, Seaside, CA 93955 USA
Piao, Shilong
Sitch, Stephen
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机构:
Univ Exeter, Dept Geog, Exeter EX4 4RJ, Devon, EnglandCalif State Univ Monterey Bay, Div Sci & Environm Policy, Seaside, CA 93955 USA
Sitch, Stephen
White, Michael A.
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机构:
Utah State Univ, Dept Watershed Sci, Logan, UT 84322 USACalif State Univ Monterey Bay, Div Sci & Environm Policy, Seaside, CA 93955 USA
White, Michael A.
Hashimoto, Hirofumi
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机构:
Calif State Univ Monterey Bay, Div Sci & Environm Policy, Seaside, CA 93955 USA
NASA, Biospher Sci Branch, Ames Res Ctr, Moffett Field, CA 94035 USACalif State Univ Monterey Bay, Div Sci & Environm Policy, Seaside, CA 93955 USA
Hashimoto, Hirofumi
Milesi, Cristina
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机构:
Calif State Univ Monterey Bay, Div Sci & Environm Policy, Seaside, CA 93955 USA
NASA, Biospher Sci Branch, Ames Res Ctr, Moffett Field, CA 94035 USACalif State Univ Monterey Bay, Div Sci & Environm Policy, Seaside, CA 93955 USA
Milesi, Cristina
Myneni, Ranga B.
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机构:
Boston Univ, Dept Earth & Environm, Boston, MA 02215 USACalif State Univ Monterey Bay, Div Sci & Environm Policy, Seaside, CA 93955 USA