-
Abstract:
With correlation analysis and factor analysis methods, the effects of preceding Pacific SSTs on subtropical high indexes of main raining seasons are discussed. The results of correlation analysis show that the effects of SSTs on five subtropical high indexes differ in seasons and regions. The variation of SSTs mostly affects the area and intensity indexes of the subtropical high, followed by the western ridge index, and the effect on the ridge line index is more remarkable than on the north boundary index. The results of factor analysis reveals that the first common factor of SST of each season reflected mainly the inverse relation of SSTs variation between the central and eastern part of equatorial Pacific and the western Pacific, which correlates better with the subtropical high indexes in the main raining seasons than other common factors of SST. The analysis of interdecadal variation indicated that the variation of SSTs was conducive to the emergence of the La Niña event before the end of 1970s, such that in the summer the subtropical high is likely to be weaker and smaller and located eastward and northward. After the 1980s, the opposite characteristics prevailed.
-
References
|
[1]
|
ZHAO Zheng-guo. Causes of rain occurrence insummer in China [M]. WANG Shao-wu (chief editor), etal. Advances in Modern Climatological Studies. Beijing:Meteorological Press, 2001: 247-257. |
|
[2]
|
YAO Yu, YAN Hua-sheng, CHENG Jian-gang.Relationship between subtropical high indexes at the mainraining period with the rainfall of 160 sampling stations inChina [J]. J. Trop. Meteor., 2004, 20(6): 651-661. |
|
[3]
|
SUN Shu-qing. A Study on the features of drought andflood in north China in recent 50 years and relationsbetween them and global changes [J]. Plateau Meteor.,1999, 18(4): 541-551. |
|
[4]
|
YE Du-zhen, HUANG Rong-hui, et al. Studies ofRegulations and Causes of Drought/Flood Disasters inYangtse River and Yellow River Drainage Areas [M].Jinan: Shandong Scientific and Technological Press, 1996:65-77, 367. |
|
[5]
|
TAN Gui-rong, SUN Zhao-bo. Relationship of thesubtropical high and summertime floods/droughts overnorth China [J]. J. Trop. Meteor., 2004, 20(2): 206-211. |
|
[6]
|
Huang Rong-hui, Sun Feng-ying. Impacts of theThermal State and the Convective Activities in theTropical Western Warm Pool on the Summer ClimateAnomalies in East Asia [J]. Chin. J. Atmos. Sci., 1994,18(2): 141-151. |
|
[7]
|
LI Chong-yin. A General Introduction to ClimatologicalDynamics [M]. Beijing: Meteorological Press, 2000:246-250. |
|
[8]
|
Chen Ju-ying. Analysis of Droughts and Floods inChina and Studies of Long-Term Forecasting [M]. Beijing:Agricultural Press, 1991: 143-147. |
|
[9]
|
ZHANG Ren-he, WU Bing-yi, ZHAO Ping, et al. Thedecadal shift of the summer climate in the late 1980s overEast China and its possible causes [J]. Acta Meteor.Sinica, 2008, 66(5): 697-706. |
|
[10]
|
LI De-ping, WU Jie-jing, MA Yan. Teleconnectionanalysis of North Pacific Ocean sea surface temperatureand subtropical high in July [J]. Adv. Marine Sci., 2007,25(4): 391-400. |
|
[11]
|
YAN Hua-sheng. Prediction and Analysis of ClimateChange [M]. Beijing: Meteorological Press, 2003:120-122. |
|
[12]
|
PENG Jia-yi, SUN Zhao-bo. Influence of springequatorial eastern Pacific SSTA on the seasonal changefrom spring to summer of eastern Asian circulation [J]. J.Trop. Meteor., 2001, 17(4): 398-404. |
|
[13]
|
Al Yue-xiu, CHEN Xing-fang. Analysis of thecorrelation between the subtropical high over westernPacific in summer and SST [J]. J. Trop. Meteor., 2000,16(1): 1-8. |
|
[14]
|
JU Jian-hua, CHEN Lin-ling, LI Chong-yin. Thepreliminary research of Pacific-Indian Ocean sea surfacetemperature anomaly mode and the definition of its index[J]. J. Trop. Meteor., 2004, 20(6): 617-624. |
|
[15]
|
YU Dan-dan, ZHANG Ren, DONG Zhao-jun, et al.Multi-scale wavelet analysis of near-equatorial SST effectson west Pacific subtropical high [J]. J. Trop. Meteor., 2004,20(5): 593-599. |
-
-
-
粤公网安备 4401069904700002号
DownLoad: