globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2014MS000369
Scopus记录号: 2-s2.0-85027939481
论文题名:
Climate and climate sensitivity to changing CO2 on an idealized land planet
作者: Becker T; , Stevens B
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2014
卷: 6, 期:4
起始页码: 1205
结束页码: 1223
语种: 英语
英文关键词: Agglomeration ; Atmospheric temperature ; Carbon dioxide ; Evaporation ; Feedback ; Heat flux ; Heat resistance ; Oceanography ; Perturbation techniques ; Precipitation (meteorology) ; Specific heat ; Surface properties ; Temperature ; Climate feedbacks ; Climate sensitivity ; General circulation model ; Global mean surface temperature ; Ocean warming ; Radiative-convective equilibrium ; Surface latent heat fluxes ; Thermodynamic surface ; Climate change ; carbon dioxide ; climate change ; global warming ; latent heat flux ; precipitation (climatology) ; sensitivity analysis ; slab ; surface temperature ; thermodynamics ; tropical environment ; troposphere ; water vapor
英文摘要: The comprehensive general circulation model ECHAM6 is used in a radiative-convective equilibrium configuration. It is coupled to a perfectly conducting slab. To understand the local impact of thermodynamic surface properties on the land-ocean warming contrast, the surface latent heat flux and surface heat capacity are reduced stepwise, aiming for a land-like climate. Both ocean-like and land-like RCE simulation reproduce the tropical atmosphere over ocean and land in a satisfactory manner and lead to reasonable land-ocean warming ratios. A small surface heat capacity induces a high diurnal surface temperature range which triggers precipitation during the day and decouples the free troposphere from the diurnal mean temperature. With increasing evaporation resistance, the net atmospheric cooling rate decreases because cloud base height rises, causing a reduction of precipitation. Climate sensitivity depends more on changes in evaporation resistance than on changes in surface heat capacity. A feedback analysis with the partial radiation perturbation method shows that amplified warming over idealized land can be associated with disproportional changes in the lapse rate versus the water vapor feedback. Cloud feedbacks, convective aggregation, and changes in global mean surface temperature confuse the picture. © 2014. The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/76106
Appears in Collections:影响、适应和脆弱性
气候变化与战略

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作者单位: Max Planck Institute for Meteorology, Hamburg, Germany

Recommended Citation:
Becker T,, Stevens B. Climate and climate sensitivity to changing CO2 on an idealized land planet[J]. Journal of Advances in Modeling Earth Systems,2014-01-01,6(4)
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