DOI: 10.1002/joc.5803
Scopus记录号: 2-s2.0-85052388336
论文题名: Enhancement of the relationship between boreal summer precipitation over eastern China and Australia since the early 1980s
作者: Ming J. ; Sun J.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2019
卷: 39, 期: 1 起始页码: 266
结束页码: 277
语种: 英语
英文关键词: Australia
; boreal summer precipitation
; eastern China
; sea surface temperature
Scopus关键词: Atmospheric pressure
; Atmospheric temperature
; Disaster prevention
; Disasters
; Precipitation (meteorology)
; Submarine geophysics
; Surface properties
; Surface waters
; Tropics
; Australia
; Correlation coefficient
; Disaster prevention and mitigations
; Eastern China
; Precipitation relationships
; Precipitation variability
; Sea surface temperature (SST)
; Summer precipitation
; Oceanography
; atmospheric circulation
; climate change
; climate variation
; correlation
; decadal variation
; precipitation (climatology)
; sea surface temperature
; summer
; Australia
; China
; Pacific Ocean
; Pacific Ocean (Tropical)
英文摘要: The relationship between the boreal summer (June–August, JJA) precipitation over eastern China and Australia is investigated in this study. The relationship exhibits a decadal enhancement with correlation coefficients increasing from 0.07 before the early 1980s to 0.60 thereafter. A mechanistic analysis suggests that the variability in sea surface temperature (SST) over the central tropical Pacific could play an important role in enhancing the precipitation relationship between the two regions. Over the past half century, the central Pacific SST has shown a warming trend with a significant decadal change that occurred around the early 1980s. Such changes in the central Pacific SST have resulted in stronger convective activity over the tropics, as well as eastern China and Australia since the early 1980s. In addition, since the early 1980s, the central Pacific SST stimulated anomalous twin anticyclones located on opposite sides of the equator, which changed the transportation of water vapour to eastern China and Australia. These changes in the atmospheric circulation related to central tropical Pacific SST have enhanced the impact on the precipitation variability over eastern China and Australia. Consequently, this has contributed to the covariability in the boreal summer precipitation over the two regions since the early 1980s. The result indicates that concurrent climate anomalies can provide simultaneously occurring natural disasters over Asia and Australia, which creates a challenge for international disaster prevention and mitigation. © 2018 Royal Meteorological Society Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116687
Appears in Collections: 全球变化的国际研究计划
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作者单位: Nansen-Zhu International Research Center, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Joint Laboratory for Climate and Environmental Change, Chengdu University of Information Technology, Chengdu, China; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Ming J.,Sun J.. Enhancement of the relationship between boreal summer precipitation over eastern China and Australia since the early 1980s[J]. International Journal of Climatology,2019-01-01,39(1)