SCSIO OpenIR  > 热带海洋环境国家重点实验室(LTO)
Equatorward shift of the South Asian high in response to anthropogenic forcing
Qu, Xia; Huang, Gang; Hu, Kaiming; Xie, Shang-Ping; Du, Yan; Zheng, Xiao-Tong; Liu, Lin; hg@mail.iap.ac.cn
2015
Source PublicationTHEORETICAL AND APPLIED CLIMATOLOGY
Volume119Issue:1-2Pages:113-122
Subtype0177-798X
AbstractThe South Asian high (SAH) is a huge anticyclone in the upper troposphere. It influences the climate and the distribution of trace constituents and pollutants. The present study documents the change in the SAH and precipitation under global warming, as well as the possible link between the changes, based on 17 Coupled Model Intercomparison Project Phase 5 (CMIP5) model simulations. The CMIP5 historical simulation reproduces reasonably the tropospheric circulation (including the SAH), precipitation, and moisture. Under global warming, more than 75 % of the CMIP5 models project a southward shift of the SAH. The southward shift is more significant in the models with stronger anticyclonic circulation in the south part of the climatological SAH. The precipitation response displays a contrasting feature: negative over the southeastern equatorial Indian Ocean (IO) and positive over the tropical northern IO, the Bay of Bengal, and the equatorial western Pacific. The results of a linear baroclinic model (LBM) show that the regional rainfall changes over the Bay of Bengal and the equatorial western Pacific have a main contribution to the southward shift of the SAH. In addition, the precipitation and the surface wind responses over the Indo-Pacific region are well coupled. On one hand, the surface wind anomaly affects the rainfall response through altering the SST and moisture. On the other hand, the condensational heating released by regional rainfall changes sustains the surface wind response.
Department[Qu, Xia; Hu, Kaiming] Chinese Acad Sci, Inst Atmospher Phys, Ctr Monsoon Syst Res, Beijing 100029, Peoples R China; [Qu, Xia] Plateau Atmosphere & Environm Key Lab Sichuan Pro, Chengdu 610225, Peoples R China; [Huang, Gang] Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate Environm Res Temperate East A, Beijing 100029, Peoples R China; [Xie, Shang-Ping; Zheng, Xiao-Tong] Ocean Univ China, Phys Oceanog Lab, Qingdao 266100, Peoples R China; [Xie, Shang-Ping; Zheng, Xiao-Tong] Ocean Univ China, Ocean Atmosphere Interact & Climate Lab, Qingdao 266100, Peoples R China; [Du, Yan] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Environm Dynam, Guangzhou 510301, Guangdong, Peoples R China; [Liu, Lin] State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China; [Huang, Gang] Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing 210044, Jiangsu, Peoples R China; [Xie, Shang-Ping] Univ Hawaii Manoa, Int Pacific Res Ctr, Honolulu, HI 96822 USA; [Xie, Shang-Ping] Univ Hawaii Manoa, Dept Meteorol, Honolulu, HI 96822 USA; [Xie, Shang-Ping] Univ Calif, Scripps Inst Oceanog, San Diego, CA USA ; LTO
Subject AreaMeteorology & Atmospheric Sciences
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/15134
Collection热带海洋环境国家重点实验室(LTO)
Corresponding Authorhg@mail.iap.ac.cn
Recommended Citation
GB/T 7714
Qu, Xia,Huang, Gang,Hu, Kaiming,et al. Equatorward shift of the South Asian high in response to anthropogenic forcing[J]. THEORETICAL AND APPLIED CLIMATOLOGY,2015,119(1-2):113-122.
APA Qu, Xia.,Huang, Gang.,Hu, Kaiming.,Xie, Shang-Ping.,Du, Yan.,...&hg@mail.iap.ac.cn.(2015).Equatorward shift of the South Asian high in response to anthropogenic forcing.THEORETICAL AND APPLIED CLIMATOLOGY,119(1-2),113-122.
MLA Qu, Xia,et al."Equatorward shift of the South Asian high in response to anthropogenic forcing".THEORETICAL AND APPLIED CLIMATOLOGY 119.1-2(2015):113-122.
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