不同季节海温与中国夏季降水的时空特征分析

王蕾; 张人禾; 张红亮

不同季节海温与中国夏季降水的时空特征分析

1.
国家气象中心, 北京, 100081
2.
中国气象科学研究院, 北京, 100081

基金项目: 科技部国家基础研究发展规划项目“我国南方致洪暴雨监测与预测的理论和方法研究”(2004CB418302);国家自然科学基金重点项目(40225012);国家气候中心气候研究开放实验室开放课题(LCS-2006-01)共同资助

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出版历程
- 收稿日期: 2007-03-06
- 修回日期: 2007-08-23

ANALYSES OF SPATIAL-TEMPORAL CHARACTERISTICS FOR VARIOUS SEASONAL SEA SURFACE TEMPERATURE VERSUS SUMMER RAINFALL IN CHINA

1.
National Meteorological Center, Beijing 100081, China
2.
Chinese Academy of Meteorological Sciences, Beijing 100081, China

摘要

摘要: 利用季降水异常的典型集合相关降水模式,分析了不同时段和不同区域的海温场与我国夏季(6～8月)降水之间的时空分布特征。结果表明:各大洋区海温存在着明显的季节、年际和年代际变化。与中国夏季降水相联系的印度洋海温的分布特征与季节有关,存在明显的偶极和单极分布形式,这种海温的异常变化对我国夏季纬向或经向雨带有一定的影响,全球特定的海温分布可以作为中国夏季旱涝预报的信号因子。不同季节海温和中国夏季降水在1970年代末都经历了一次突变,说明海温的季节差异对中国夏季降水的影响明显地受到海洋年代际基本态的制约。
- 典型集合相关降水模式 /
- 海温 /
- 夏季降水 /
- 时空分布特征 /
- 年代际变化
Abstract: Based on the canonical ensemble correlation prediction(CECP) model for seasonal precipitation anomaly,spatial-temporal characteristics for sea surface temperature anomalies(SSTA) versus summer(JJA) precipitation in China are analyzed,using SSTA for various seasons and different regions as predictor fields.The results show that the SSTA has significant seasonal,annual and inter-decadal changes.The distribution of Indian Ocean SST associated with summer rainfall of China,mainly being dipole and unipole,are different with seasonal changes.They have most important roles in the zonal or meridional rainbelts of China.Specific global SSTA distribution modes might be used as predictors of summer precipitation in China.Furthermore,both the various seasonal SSTA and summer precipitation in China have experienced an abrupt change after the late 1970s,indicating that the impacts of the seasonal differences of SSTA on summer precipitation in China are significantly controlled by the basic state of inter-decadal oceanic changes.
- canonical ensemble correlation prediction(CECP) model /
- sea surface temperature anomalies(SSTA) /
- summer(JJA) precipitation /
- spatial-temporal characteristics /
- inter-decadal changes

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参考文献(34)

[1]	费亮,王玉清.赤道东太平洋海温与长江下游地区降水异常的相关分析[J].气象学报,1993,51(4):442-447.
[2]	林学椿.北太平洋海表持续加热对夏季中国降水及大气环流的影响[J].热带气象学报,1999,15(3):258-266
[3]	蓝光东,温之平,贺海晏.热带太平洋上空大气热源、水汽汇的年际变化及其与海温异常之间的联系[J].热带气象学报,2004,20(3):258-270.
[4]	肖子牛,晏红明,李崇银.印度洋地区异常海温的偶极振荡与中国降水及温度的关系[J].热带气象学报,2002,18(4):335-344.
[5]	闫骁勇,张铭.赤道东太平洋海温异常期间印度洋偶极子对东亚季风区影响的数值模拟[J].热带气象学报,2004,20(4):375-382.
[6]	QIAN W H,HUH R,ZHU Y F.Thermocline oscillation in the tropical Indian Ocean[J].Atmosphere-Ocean,2003(4):241-258.
[7]	钱维宏,胡豪然.热带太平洋和热带印度洋次表层海温异常信号的传播与联系[J].自然科学进展,2005,15(5):579-584.
[8]	肖子牛,晏红明.El nino位相期间印度洋SSTA对中国南部初夏降水及初夏亚洲季风影响的数值模拟研究[J].大气科学,2001,25(2):173-183.
[9]	邹力,倪允琪.ENSO期热带太平洋和印度洋海温异常对亚洲夏季风变异影响的数值研究[J].海洋预报,1998,15(1):19-31
[10]	SMITH T M,REYNOLDS R W,LIVEZEYR R E,et al.Reconstruction of historical sea surface temperature using empirical orthogonalfunctions[J].J Climate,1996,9(6):1 403-1 420.
[11]	BARNETT T P,PREISENDORFER R.Origins and levels of monthly and seasonal forecast skill for United States surface air temperaturesdetermined by Canonical correlation analysis[J].Mon Wea Rev,1987,115(9):1 825-1 847.
[12]	SAHA K.Zonal anomaly of sea surface temperature in equatorial Indian Ocean and its possible effect on monsoon circulation[J].Tellus,1970,22(4):403-409.
[13]	严邦良,张人禾.热带西太平洋风应力异常在ENSO循环中作用的数值试验[J].大气科学,2002,26(3):315-319.
[14]	WEBSTER P J,MOORE A M,LOSCHNIGG J P,et al.Coupled ocean-atmosphere dynamics in the Indian Ocean during 1997-1998[J].Nature,1999,401:356-360.
[15]	SAJI N H,GOSWAMI B N,VINAYA P N,et al.A dipole mode in the tropical Indian Ocean[J].Nature,1999,401:360-363.
[16]	BEHARA S K,SALVEKAR P S,YAMAGATA T.Simulation of interannual SST variability in the tropical Indian Ocean[J].J Climate,2000,13(19):3 487-3 499.
[17]	谭言科,张人禾.热带印度洋海温的年际异常及其海气耦合特征[J].大气科学,2003,27(1):53-66.
[18]	李崇银,穆明权.印度洋海温偶极子和太平洋海温异常[J].科学通报,2001,46(20):1 747-1 751.
[19]	陈烈庭.热带印度洋-太平洋海温纬向异常及其对亚洲季风的影响[J].大气科学特刊,1988:142-148.
[20]	ZHANG Renhe.Relations of water vapor transports from Indian monsoon with those over East Asia and the summer rainfall in China[J].AdvAtmos Sci,2001,18(5):1 005-1 017.
[21]	张人禾.El Nino盛期印度夏季风水汽输送在我国华北地区夏季降水异常中的作用[J].高原气象,1999,18(4):567-574
[22]	ZHANG Renhe.A Diagnostic Study of the Impact of ElNino on the Precipitation in China[J].Adv Atmos Sci,1999,16(2):229-241.
[23]	HUANG Ronghui,ZHANG Renhe.The 1997/98 ENSO Cycle and Its Impact on Summer Climate Anomalies in East Asia[J].Adv Atmos Sci,2000,17(3):348-362.
[24]	WANG B.Interdecadal Changes in El Nino Onset in the Last Four Decades[J].J Climate,1995,8(2):267-285.
[25]	RASMUSSON E M,CARPENTER T H.Variations in tropical sea surface temperature and surface wind fields associated with the SouthernOscillation/El Nino[J].Mon Wea Rev,1982,110(5):354-384.
[26]	QIAN Weihong.The understanding of ENSO cycle mechanism and ENSO potential predictability[J].Acta Meteor Sinica,1997,11(1):105-118.
[27]	李丽平,王盘兴.北太平洋区域浅层海温与海平面气压场年代际异常关系的分析[J].热带气象学报,2003,19(4):357-366.
[28]	钱维宏.赤道东太平洋海温异常的年际和年代际变率[J].科学通报,1998,43(10):1 098-1 102.
[29]	葛旭阳.我国夏季降水对太平洋海温年代际变化响应的数值试验[J].南京气象学院学报,2000,23(4):555-559.
[30]	郭燕娟,杨修群.全球海气系统年际和年代际变化的时空特征分析[J].气象科学,2002,22(2):127-138
[31]	QIAN W H,HUH R,DENG Y.Signals of Interannual and Interdecadal Variability of Air-Sea Interaction in the Basin-Wide Indian Ocean[J].Atmosphere-Ocean,2002,40(3):293-311.
[32]	朱亚芬,钱维宏.全球海温异常的年代际变化[J].海洋预报,1998,15(4):1-7.
[33]	史历,倪允琪.近百年热带太平洋海温年际及年代际时间变率特征的诊断研究[J].气象学报,2001,59(2):220-225.
[34]	MILLER A J,SCHNEIDER N.Interdecadal climate regime dynamics in the North Pacific Ocean:theories,observations and ecosystemimpacts[J].Progress Oceanogr,2000,47(2):355-379.