Please wait a minute...
 Home  About the Journal Subscription Advertisement Contact us   英文  
 
Just Accepted  |  Current Issue  |  Archive  |  Featured Articles  |  Most Read  |  Most Download  |  Most Cited
Journal of Geographical Sciences    2002, Vol. 12 Issue (2) : 202-209     DOI:
Climate and Environmental Change |
Interdecadal change in Western Pacific Subtropical High and climatic effects
HE Xue-zhao1, GONG Dao-yi1,2
1. Laboratory of Environmental Change and Natural Disaster Research, Institute of Resources Science, Beijing Normal University, Beijing 100875, China|
2. School of Earth and Environmental Sciences, Seoul National University, Seoul 151-742, Korea
Download: PDF(440 KB)  
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks    
Abstract  

Western North Pacific Subtropical High is a very important atmospheric circulation system influencing the summer climate over eastern China. Its interdecadal change is analyzed in this study. There is a significant decadal shift in about 1979/1980. Since 1980, the Western North Pacific Subtropical High has enlarged, intensified, and shifted southwestward. This change gives rise to an anti-cyclonic circulation anomaly over the region from the South China Sea to western Pacific and thus causes wet anomalies over the Yangtze River valley. During the summers of 1980-1999, the precipitation is 63.9 mm above normal, while during 1958-1979 it is 27.3 mm below normal. The difference is significant at the 99% confidence level as a t-test shown. The southwestward expanding of the Western North Pacific Subtropical High also leads to a significant warming in southern China, during 1980-1999 the summer mean temperature is 0.37oC warmer than that of the period 1958-1979. The strong warming is primarily due to the clearer skies associated with the stronger downward air motion as the Western North Pacific Subtropical High expanding to the west and controlling southern China. It is also found that the relative percentage of tropical cyclones in the regions south of 20oN is decreasing since the 1980s, but in the regions north of 20oN that is increasing at the same time. The Western North Pacific Subtropical High responds significantly to sea surface temperature of the tropical eastern Pacific with a lag of one-two seasons and simultaneously to sea surface temperature of the tropical Indian Ocean. The changes in the sea surface temperatures are mainly responsible for the interdecadal variability of the Western North Pacific Subtropical High.

Keywords Western Pacific Subtropical High      interdecadal change      climate change     
PACS:  P467  
Fund:

National Developing Program for Basic Sciences, No.1998040900; National Natural Science Foundation of China, No.40105007

Service
E-mail this article
E-mail Alert
RSS
Articles by authors
Cite this article:   
HE Xue-zhao, GONG Dao-yi. Interdecadal change in Western Pacific Subtropical High and climatic effects[J]. Journal of Geographical Sciences,2002, 12(2): 202-209.
URL:  
http://www.geogsci.com/EN/     OR     http://www.geogsci.com/EN/Y2002/V12/I2/202
[1] DAI Erfu, ZHAI Ruixue, GE Quansheng, WU Xiuqin. Detecting the storage and change on topsoil organic carbon in grasslands of Inner Mongolia from 1980s to 2010s[J]. , 2014, 24(6): 1035-1046.
[2] WU Li, ZHU Cheng, ZHENG Chaogui, MA Chunmei, WANG Xinhao, LI Feng, LI Bing, LI Kaifeng. Impact of Holocene climate change on the prehistoric cultures of Zhejiang region, East China[J]. , 2014, 24(4): 669-688.
[3] ZHU Bingqi, YU Jingjie, QIN Xiaoguang, Patrick RIOUAL, ZHANG Yichi, XIONG Heigang. Formation and evolution of sand deserts in Xinjiang, Northwest China:Ⅱ. The palaeo-environmental reconstruction[J]. , 2014, 24(3): 539-559.
[4] ZHANG Zhao, WANG Pin, CHEN Yi, ZHANG Shuai, TAO Fulu, LIU Xiaofei. Spatial pattern and decadal change of agro-meteorological disasters in the main wheat production area of China during 1991-2009[J]. , 2014, 24(3): 387-396.
[5] ZHAO Dongsheng, WU Shaohong. Vulnerability of natural ecosystem in China under regional climate scenarios:An analysis based on eco-geographical regions[J]. , 2014, 24(2): 237-248.
[6] WU Shanshan, YAO Zhijun, HUANG Heqing, LIU Zhaofei, CHEN Yuansheng. Glacier retreat and its effect on stream flow in the source region of the Yangtze River[J]. , 2013, 23(5): 849-859.
[7] QI Wei, ZHANG Yili, GAO Jungang, YANG Xuchao, LIU Linshan, Narendra R. KHANAL. Climate change on the southern slope of Mt. Qomolangma (Everest) Region in Nepal since 1971[J]. , 2013, 23(4): 595-611.
[8] LIAO Yaoming. Change of parameters of BCC/RCG-WG for daily non-precipitation variables in China:1951-1978 and 1979-2007[J]. , 2013, 23(4): 579-594.
[9] DAI Junhu, WANG Huanjiong, GE Quansheng. The decreasing spring frost risks during the flowering period for woody plants in temperate area of eastern China over past 50 years[J]. , 2013, 23(4): 641-652.
[10] MENG Xiujing, ZHANG Shifeng, ZHANG Yongyong, WANG Cuicui. Temporal and spatial changes of temperature and precipitation in Hexi Corridor during 1955-2011[J]. , 2013, 23(4): 653-667.
[11] SHI Wenjiao, TAO Fulu, ZHANG Zhao. A review on statistical models for identifying climate contributions to crop yields[J]. Journal of Geographical Sciences, 2013, 23(3): 567-576.
[12] YIN Yunhe, WU Shaohong, ZHAO Dongsheng, ZHENG Du, PAN Tao. Modeled effects of climate change on actual evapotranspiration in different eco-geographical regions in the Tibetan Plateau[J]. Journal of Geographical Sciences, 2013, 23(2): 195-207.
[13] LI Lin, SHEN Hongyan, DAI Sheng, LI Hongmei, XIAO Jianshe. Response of water resources to climate change and its future trend in the source region of the Yangtze River[J]. Journal of Geographical Sciences, 2013, 23(2): 208-218.
[14] MA Ting, ZHOU Chenghu, PEI Tao, XIE Yichun. A comparative analysis of changes in the phasing of temperature and satellite-derived greenness at northern latitudes[J]. Journal of Geographical Sciences, 2013, 23(1): 57-66.
[15] MA Xin, WU Shaohong, LI Yu’e, ZHANG Xueyan, GAO Qingzhu, WU Yang. Rice re-cultivation in southern China: An option for enhanced climate change resilience in rice production[J]. Journal of Geographical Sciences, 2013, 23(1): 67-84.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
Copyright © Journal of Geographical Sciences, All Rights Reserved.
Powered by Beijing Magtech Co. Ltd