主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报 ›› 2016, Vol. 32 ›› Issue (1): 95-102.doi: 10.11927/j.issn.1673-503X.2016.01.014

• 论文 • 上一篇    下一篇

青海高原春季气温异常及影响因子分析

申红艳1, 马明亮2, 时兴合1, 戴升1, 马占良1   

  1. 1. 青海省气候中心, 青海西宁 810001;
    2. 陕西中圣环境科技发展有限公司, 陕西西安 710060
  • 收稿日期:2014-02-13 修回日期:2015-03-05 出版日期:2016-02-28 发布日期:2016-02-28
  • 作者简介:申红艳,女,1980年生,高级工程师,主要从事短期气候预测研究,E-mail:ishyshen@163.com。
  • 基金资助:
    中国气象局气候变化专项(CCSF201316)资助。

Analysis of spring temperature anomaly and its impact factors in Qinghai plateau

SHEN Hong-yan1, MA Ming-liang2, SHI Xing-he1, DAI Sheng1, MA Zhan-liang1   

  1. 1. Qinghai Climate Center, Xining 810001, China;
    2. Environmental Science and Technology Development Co., Ltd. Shaanxi Zhongsheng, Xi'an 710060, China
  • Received:2014-02-13 Revised:2015-03-05 Online:2016-02-28 Published:2016-02-28

摘要: 利用1961-2012年青海省气温观测资料、NCEP月平均再分析资料集及环流因子数据,探讨了青海高原春季气温异常特征及其影响因子。结果表明:1961-2012年青海高原春季气温呈显著上升的趋势,且具有明显的年代际变化特征;青海高原春季气温主要表现为全区一致型、南北反相型和东西反相型3种分布型,其中全区一致型和东西反相型具有明显的年代际特征,而南北反相型年际振荡特征显著。春季西欧、乌拉尔山、青藏高原及以东地区是影响青海高原春季气温异常的关键系统所在地,乌拉尔山高压脊和东亚大槽的强弱直接影响青海高原春季的冷暖;青海高原春季气温异常的影响因子主要包括乌拉尔山高压脊、东亚大槽、北半球副热带高压和极涡指数、高原高度场;青海高原春季气温对北印度洋的索马里-阿拉伯海-孟加拉湾地区、西北太平洋及赤道中太平洋海温异常有较好的响应,当上述关键海区的海温偏冷(暖)时,易造成青海高原冷(暖)春。

关键词: 青海高原, 气温异常, 大气环流, 海温异常

Abstract: Using temperature data in Qinghai province, monthly mean NCEP reanalysis data and circulation index from 1961 to 2012, characteristic of the spring temperature anomaly and its impact factors were analyzed.The results show that the spring temperature is in a significant increasing trend and has significant interdecadal variation.There are three types for variation of spring temperature, i.e.regional consistence type, east-west antiphase type and north-south antiphase type.There is obvious interdecadal variation for the former two types, while annual variation is significant for the north-south antiphase type.The key areas influencing the spring temperature anomaly are located in the Western Europe, Ural mountain, Qinghai plateau and its eastern region.Ural pressure ridge and east Asian trough influence directly the spring temperatute in Qinghai plateau.Also, the subtropical high and polar vortex index in Northern Hemisphere, Plateau height field are also the main impact factors of the spring temperature.At the same time, it has good response to anomaly of SST in the Somalia, the Arabian Sea, the Bay of Bengal of North Indian Ocean, the Northwest pacific and the Equatorial Pacific.It will be cold (warm) spring in Qinghai plateau when the SST in the above areas is low (high).

Key words: Qinghai Plateau, Temperature anomaly, Atmospheric circulation, Sea surface temperature anomaly

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