Surface warming patterns drive tropical rainfall pattern responses to CO2 forcing on all timescales

被引：89
作者：
Chadwick, Robin [1 ]
Good, Peter [1 ]
Andrews, Timothy [1 ]
Martin, Gill [1 ]
机构：
[1] Met Off Hadley Ctr, Exeter, Devon, England
来源：
GEOPHYSICAL RESEARCH LETTERS | 2014年 / 41卷 / 02期
关键词：
climate change; rainfall; SST; tropics; PRECIPITATION; CIRCULATION;
D O I：
10.1002/2013GL058504
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
Mechanisms behind regional tropical rainfall responses to CO2 forcing are examined in idealized climate model experiments, traceable to transient forcing scenarios. As previously shown, the pattern of the first-year response of dynamical precipitation change to an abrupt CO2 increase is similar to the century-scale response. It is demonstrated here that this similarity is driven by surface temperature pattern change, not a direct atmospheric circulation response to CO2. This confirms the Warmer get Wetter hypothesis, which emphasizes the role of sea surface temperature pattern change in driving regional tropical precipitation change. Future regional rainfall changes should thus be studied primarily in coupled ocean-atmosphere models. Key Points <list list-type="bulleted"> <list-item id="grl51213-li-0001">Regional tropical rainfall change is driven by surface warming patterns <list-item id="grl51213-li-0002">Land-sea warming contrasts can drive tropics-wide circulation change <list-item id="grl51213-li-0003">The direct CO2 effect is important for mean rainfall change, but not patterns
引用
收藏
页码：610 / 615
页数：6
相关论文
共 14 条
  • [1] Sensitivity of an Earth system climate model to idealized radiative forcing
    Andrews, Timothy
    Ringer, Mark A.
    Doutriaux-Boucher, Marie
    Webb, Mark J.
    Collins, William J.
    [J]. GEOPHYSICAL RESEARCH LETTERS, 2012, 39
  • [2] Fast versus slow response in climate change: implications for the global hydrological cycle
    Bala, Govindasamy
    Caldeira, K.
    Nemani, R.
    [J]. CLIMATE DYNAMICS, 2010, 35 (2-3) : 423 - 434
  • [3] Bony S, 2013, NAT GEOSCI, V6, P447, DOI [10.1038/ngeo1799, 10.1038/NGEO1799]
  • [4] Climate response to changes in atmospheric carbon dioxide and solar irradiance on the time scale of days to weeks
    Cao, Long
    Bala, Govindasamy
    Caldeira, Ken
    [J]. ENVIRONMENTAL RESEARCH LETTERS, 2012, 7 (03):
  • [5] Understanding nonlinear tropical precipitation responses to CO2 forcing
    Chadwick, Robin
    Good, Peter
    [J]. GEOPHYSICAL RESEARCH LETTERS, 2013, 40 (18) : 4911 - 4915
  • [6] Spatial Patterns of Precipitation Change in CMIP5: Why the Rich Do Not Get Richer in the Tropics
    Chadwick, Robin
    Boutle, Ian
    Martin, Gill
    [J]. JOURNAL OF CLIMATE, 2013, 26 (11) : 3803 - 3822
  • [7] Asymmetries in tropical rainfall and circulation patterns in idealised CO2 removal experiments
    Chadwick, Robin
    Wu, Peili
    Good, Peter
    Andrews, Timothy
    [J]. CLIMATE DYNAMICS, 2013, 40 (1-2) : 295 - 316
  • [8] Untitled
    Collins, Martin
    [J]. HISTORY AND TECHNOLOGY, 2013, 29 (01) : 1 - 2
  • [9] A step-response approach for predicting and understanding non-linear precipitation changes
    Good, Peter
    Ingram, William
    Lambert, F. Hugo
    Lowe, Jason A.
    Gregory, Jonathan M.
    Webb, Mark J.
    Ringer, Mark A.
    Wu, Peili
    [J]. CLIMATE DYNAMICS, 2012, 39 (12) : 2789 - 2803
  • [10] Robust responses of the hydrological cycle to global warming
    Held, Isaac M.
    Soden, Brian J.
    [J]. JOURNAL OF CLIMATE, 2006, 19 (21) : 5686 - 5699
12