globalchange  > 影响、适应和脆弱性
DOI: 10.1002/jgrd.50646
论文题名:
Climate model response from the Geoengineering Model Intercomparison Project (GeoMIP)
作者: Kravitz B.; Caldeira K.; Boucher O.; Robock A.; Rasch P.J.; Alterskjær K.; Karam D.B.; Cole J.N.S.; Curry C.L.; Haywood J.M.; Irvine P.J.; Ji D.; Jones A.; Kristjánsson J.E.; Lunt D.J.; Moore J.C.; Niemeier U.; Schmidt H.; Schulz M.; Singh B.; Tilmes S.; Watanabe S.; Yang S.; Yoon J.-H.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期:15
起始页码: 8320
结束页码: 8332
语种: 英语
英文关键词: geoengineering ; model intercomparison
Scopus关键词: Atmospheric temperature ; Carbon dioxide ; Climate change ; Computer simulation ; Ecosystems ; Greenhouse gases ; Hydrology ; Plants (botany) ; Sea ice ; Solar radiation ; Sun ; Annual mean precipitation ; Anthropogenic greenhouse gas emissions ; Geoengineering ; Global mean surface temperature ; Model inter comparisons ; Net primary productivity ; Pre-industrial levels ; Temperature reduction ; Climate models ; anthropogenic effect ; carbon dioxide ; carbon emission ; climate effect ; global warming ; greenhouse gas ; hydrological cycle ; insolation ; international comparison ; net primary production ; precipitation (climatology) ; radiation balance ; sea ice ; solar radiation ; surface temperature
英文摘要: Solar geoengineering - deliberate reduction in the amount of solar radiation retained by the Earth - has been proposed as a means of counteracting some of the climatic effects of anthropogenic greenhouse gas emissions. We present results from Experiment G1 of the Geoengineering Model Intercomparison Project, in which 12 climate models have simulated the climate response to an abrupt quadrupling of CO2 from preindustrial concentrations brought into radiative balance via a globally uniform reduction in insolation. Models show this reduction largely offsets global mean surface temperature increases due to quadrupled CO2 concentrations and prevents 97% of the Arctic sea ice loss that would otherwise occur under high CO2 levels but, compared to the preindustrial climate, leaves the tropics cooler (-0.3 K) and the poles warmer (+0.8 K). Annual mean precipitation minus evaporation anomalies for G1 are less than 0.2 mm day-1 in magnitude over 92% of the globe, but some tropical regions receive less precipitation, in part due to increased moist static stability and suppression of convection. Global average net primary productivity increases by 120% in G1 over simulated preindustrial levels, primarily from CO2 fertilization, but also in part due to reduced plant heat stress compared to a high CO2 world with no geoengineering. All models show that uniform solar geoengineering in G1 cannot simultaneously return regional and global temperature and hydrologic cycle intensity to preindustrial levels. Key Points Temperature reduction from uniform geoengineering is not uniform Geoengineering cannot offset both temperature and hydrology changes NPP increases mostly due to CO2 fertilization ©2013. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63498
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: Pacific Northwest National Laboratory, MSIN K9-24, PO Box 999, Richland, WA 99352, United States; Department of Global Ecology, Carnegie Institution for Science, Stanford CA, United States; Laboratoire de Météorologie Dynamique, IPSL, CNRS/UPMC, Paris, France; Department of Environmental Sciences, Rutgers University, New Brunswick NJ, United States; Department of Geosciences, University of Oslo, Oslo, Norway; Laboratoire des Sciences du Climat et de l'Environnement, CEA/CNRS/UVSQ, Saclay, France; Canadian Centre for Climate Modeling and Analysis, Environment Canada, Toronto ON, Canada; School of Earth and Ocean Sciences, University of Victoria, Victoria BC, Canada; Met Office Hadley Centre, Exeter, United Kingdom; College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, United Kingdom; Institute for Advanced Sustainability Studies, Potsdam, Germany; State Key Laboratory of Earth Surface Processes and Resource Ecology, College of Global Change and Earth System Science, Beijing Normal University, Beijing, China; School of Geographical Sciences, University of Bristol, Bristol, United Kingdom; Max Planck Institute for Meteorology, Hamburg, Germany; Norwegian Meteorological Institute, Oslo, Norway; National Center for Atmospheric Research, Boulder CO, United States; Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan; Danish Meteorological Institute, Copenhagen, Denmark

Recommended Citation:
Kravitz B.,Caldeira K.,Boucher O.,et al. Climate model response from the Geoengineering Model Intercomparison Project (GeoMIP)[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(15)
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