太平洋SSTA同中国东部夏季极端降水事件变化关系的研究

杨金虎; 江志红; 王鹏祥; 杨启国

太平洋SSTA同中国东部夏季极端降水事件变化关系的研究

1.
南京信息工程大学气象灾害省部共建教育部重点实验室,江苏南京 210044;甘肃省定西市气象局,甘肃定西 743000
2.
南京信息工程大学气象灾害省部共建教育部重点实验室,江苏南京 210044
3.
甘肃省气象局,甘肃兰州 730020

基金项目: 江苏省高校自然科学重大基础(07KJA17020);国家科技支撑计划(2007BAC29B03);高原气象科学研究基金(LAP2007002);甘肃省第五批"十人计划"项目共同资助。

计量
- 文章访问数: 1530
- HTML全文浏览量: 12
- PDF下载量: 911
- 被引次数: 0
出版历程
- 收稿日期: 2009-02-05

Relation research on between SSTA of Pacfic and extreme prcecipitation events in the eastern China

1.
Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing University of Information Science & Technology, Nanjing 210044,China;Meteorological Bureau of Dingxi, Dingxi 743000,China
2.
Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing University of Information Science & Technology, Nanjing 210044,China
3.
Meteorological Bureau of Gansu, Lanzhou 730020,China

Funds: 无

摘要

摘要: 基于中国东部1955—2004年233个台站逐日降水和NCEP/NCAR再分析高度场、风场、比湿、地面气压以及NOAA海表温度资料,运用SVD、合成分析等方法研究了太平洋SSTA同中国东部夏季极端降水事件之间的相互关系,结果表明:前期冬季太平洋SSTA同我国东部夏季极端降水事件的关系比较显著;前冬赤道中东太平洋是影响我国华北地区夏季极端降水事件的关键区,若前冬该海域海温发生异常,从冬到夏大气环流先后通过PNA(反PNA)和WP(反WP)遥相关型使得西太平洋副热带高压发生异常,进而使得华北夏季极端降水事件发生异常;前冬热带西太平洋是影响我国东北南部及江南地区夏季极端降水事件的关键区,若前冬该海域海温发生异常,从冬到夏105°~135°E的平均经向垂直环流圈发生异常,使得夏季东北南部与江南地区垂直运动发生异常,进而使得东北南部和江南夏季极端降水事件发生异常。
- 极端降水事件 /
- 太平洋SSTA /
- 遥联
Abstract: Based on 233 stations daily precipitation datasets in the East China from 1955 to 2004, NCEP/NCAR reanalysis height fields, vertical velocity, specific humidity, surface pressure and NOAA reconstruct sea surface temperature, and with singular value decomposition, compose analysis methods, relation between Pacific sea surface temperature and extreme precipitation events of East China is researched. It is found that winter Pacific sea surface temperature have remarkable relations with anaphase summer extreme precipitation events of East China, and Equator middle and East Pacific is key area which affect to summer extreme precipitation events of East China, when sea surface temperature occur anomaly phenomenon in the Equator middle and East Pacific in winter, by PNA (AntiPNA) and WP (AntiWP) teleconnection on atmospheric circulation take place adjustment from winter to summer, thus West Pacfic SubTropic High Pressure also take palce anomaly, at last summer extreme precipitation events of North China occur anomaly phenomenon. It is also found that tropic West Pacific is key area which affect to summer extreme precipitation events of northeast China and south of Changjiang River, when sea surface temperature occur anomaly phenomenon in the tropic West Pacific in winter, the average latitudinal vertical circulation of 105°~135°E take place anomaly phenomenon, and vertical motion occur anomaly in the northeast China and south of Changjiang River, at last the extreme precipitation events of the areas also occur anomaly.
- extreme precipitation events /
- SSTA of pacific /
- teleconnection

HTML全文

参考文献(26)

CHANGNON S A, ROGER A, PIELK J R, et al. Human factors explain the increased losses from weather and climate extremes[J]. Bull of the Amer Mete Soci,2000,81(3):437—442.

EASTERLING D R, EVANS J L, GROISMAN YA P, et al. Observed variability and trends in extreme climate events: a brief review[J]. Bull of the Ameri Mete Soci, 2000,81(3):417—425.

WANG B, WU R, FU X. Pacific-East Asian teleconnection: How does ENSO affect East Asian climate?[J].J Climate, 2000,13:1517—1536.

KUNKEL K E, ANDSAGER K,EASTERLING D R. Longterm trends in extreme precipitation events over the conterminous United States and Canada[J]. J Climate, 1999, 12: 2515—2527.

STONE D A, WEAVER A J, ZWIERS F W. Trends in Canadian precipitation intensity[J]. Atmos Ocean, 1999, 2: 321—347.

YAMAMOTO R, SAKURAI Y. Longterm intensification of extremely heavy rainfall intensity in recent 100 years[J]. World Resource Rev, 1999, 11: 271—281.

OSBORN T J, HULME M, JONES P D, et al. Observed trends in the daily intensity of United Kingdom precipitation[J]. Int J Climate, 2000, 20:347—364.

GROISMAN P Y A, KARL T R,EASTERLING D R, et al. Changes in the probability of heavy precipitation: Important indicators of climatic change[J]. Clim Change, 1999, 42: 243—283.

MANTON M J, DELLAMARTA PM, HAYLOCK M R, et al. Trends in extreme daily rainfall and temperature in Southeast Asia and the South Pacific: 1961-1998[J]. Int J Climate, 2001, 21: 269—284.

BUFFONI L, MAUGERI M, NANNI T. Precipitation in Italy from 1833 to 1996[J]. Theoretical and Applied Climatology, 1999, 63: 33—40.

翟盘茂,任福民,张强.中国降水极端值变化趋势检测[J].气象学报,1999,75(2):208—216.

刘小宁. 我国暴雨极端事件的气候变化特征[J].灾害学, 1999, 14(1): 54—59.

刘学华,季致建,吴洪宝,等.中国近40年极端气温和降水的分布特征及年代际差异[J].热带气象学报,2006,22(6):618—624.

吕炯.海水温度与水旱问题[J].气象学报, 1950, 21(1): 1—16 .

陈烈庭.阿拉伯海—南海海温距平纬向差异对长江中下游降水的影响[J].大气科学, 1991, 15(1): 33—41 .

邓爱军,陶诗言,陈烈庭.印度洋海表温度的时空分布特征及其与我国汛期降水关系的探讨[J].大气科学,1989,13(4):393—399.

罗绍华,金祖辉.南海海温变化与初夏西太平洋副高活动及长江中、下游汛期降水关系的分析[J].大气科学,1986, 10(4): 409—417.

张琼,刘平,吴国雄.印度洋和南海海温与长江中下游旱涝[J].大气科学2003, 27(6): 992—1006

金祖辉,罗绍华.长江中下游梅雨期旱涝与南海海温异常关系的初步分析[J].气象学报, 1986, 44(3):360—372.

秦正坤,孙照渤.冬季风异常对西北太平洋海温影响的区域性特征[J].大气科学,2006,30(2): 257—267.

张启龙,翁学传,程明华.华北地区汛期降水与热带西太平洋暖池和黑潮的关系[J].高原气象, 1999, 18(4): 575—583.

陈烈庭.东太平洋赤道地区海水温度异常对热带大气环流及我国汛期降水的影响[J].大气科学, 1977, 1(1): 1—12 .

郭其蕴.东亚季风强度指数及其变化分析[J].地理学报, 1983, 38(31): 207—216.

翟盘茂,潘晓华.中国北方近50年温度和降水极端事件变化[J].地理学报,2003,58(增): 1—10.

BONSAL B R, ZHANG X B, VINCENT L A ,et al. Characteristic of daily and extreme temperature over Canada[J]. J Climate, 2001, 5(14): 1959—1976.

冯俊茹,周晓兰.我国冬季气温异常的空间型及其与500 hPa环流的初步研究[J].南京气象学院学报, 1998(增): 478—483.

施引文献

资源附件(0)

访问统计

点击查看大图

计量

文章访问数: 1530
HTML全文浏览量: 12
PDF下载量: 911
被引次数: 0

姓名
邮箱
手机号码
标题
留言内容
验证码

留言板