globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-013-1846-1
Scopus记录号: 2-s2.0-84897570746
论文题名:
The MJO and global warming: A study in CCSM4
作者: Subramanian A.; Jochum M.; Miller A.J.; Neale R.; Seo H.; Waliser D.; Murtugudde R.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2014
卷: 42, 期:2017-07-08
起始页码: 2019
结束页码: 2031
语种: 英语
英文关键词: CCSM4 ; Climate change ; MJO
英文摘要: The change in Madden-Julian oscillation (MJO) amplitude and variance in response to anthropogenic climate change is assessed in the 1° nominal resolution community climate system model, version 4 (CCSM4), which has a reasonable representation of the MJO characteristics both dynamically and statistically. The twentieth century CCSM4 run is compared with the warmest twenty-first century projection (representative concentration pathway 8.5, or RCP8.5). The last 20 years of each simulation are compared in their MJO characteristics, including spatial variance distributions of winds, precipitation and outgoing longwave radiation, histograms of event amplitude, phase and duration, and composite maps of phases. The RCP8.5 run exhibits increased variance in intraseasonal precipitation, larger-amplitude MJO events, stronger MJO rainfall in the central and eastern tropical Pacific, and a greater frequency of MJO occurrence for phases corresponding to enhanced rainfall in the Indian Ocean sector. These features are consistent with the concept of an increased magnitude for the hydrological cycle under greenhouse warming conditions. Conversely, the number of active MJO days decreases and fewer weak MJO events occur in the future climate state. These results motivate further study of these changes since tropical rainfall variability plays such an important role in the region's socio-economic well being. © 2013 Springer-Verlag Berlin Heidelberg.
资助项目: ONR, Office of Naval Research ; NSF, Office of Naval Research
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54483
Appears in Collections:过去全球变化的重建

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作者单位: SIO, UCSD, La Jolla, CA, 92037, United States; Climate and Geophysics Division, The Niels Bohr Institute, Copenhagen, Denmark; Climate and Global Dynamics Division, National Center for Atmospheric Research, Boulder, CO, United States; Physical Oceanography Department, Woods Hole Oceanographic Institution, Woods Hole, MA, United States; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, United States

Recommended Citation:
Subramanian A.,Jochum M.,Miller A.J.,et al. The MJO and global warming: A study in CCSM4[J]. Climate Dynamics,2014-01-01,42(2017-07-08)
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