Abrupt Change in the First Tropopause Height over Xinjiang in 1960-1999.pdf

Abrupt Change in the First Tropopause Height over Xinjiang in 1960-1999.pdf

  1. 1、本文档共5页,可阅读全部内容。
  2. 2、有哪些信誉好的足球投注网站(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
  3. 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载
  4. 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
查看更多
Abrupt Change in the First Tropopause Height over Xinjiang in 1960-1999

Adv. Clim. Change Res., 2006, 2 (Suppl. 1): 41J45 41 Article ID: 1673-1719 (2006) Suppl. 1-0041-05 Received: November 30, 2005; revised: April 3, 2006 Corresponding to Zhang Guangxing (E-mail: zhangguangxin@163.com) ?2006 National Climate Commission of China. All right reserved. Abrupt Change in the First Tropopause Height over Xinjiang in 1960J1999 Zhang Guangxing 1 , Li Juan 1 , Cui Caixia 1 , Xin Yu 2 1 Institute of Desert Meteorology, China Meteorological Administration, Urumqi Xinjiang 830002, China; 2 Meteorological Bureau of Bortala Mongolian Autonomous Prefecture, Bole Xinjiang 833400, China  Abstract: Based on the1960J1999 daily radiosounding data from twelve stations in Xinjiang, which is divided into four sub-areas, the Altai Mountains, the northern and southern slopes of Tianshan Mountains and the Kunlun Mountains by climate features and latitude distribution, trends of the annual mean heights and spatial differences of the first tropopause in the past 40 years were analyzed, and tests of the abrupt change of mean heights conducted by Mann-Kendall and successive running t-test. The results showed that there was an overall increasing trend of mean height for the first tropopause over Xinjiang during 1960J1999, in particular during 1987J1999. From the view of the interdecadal change, the mean height obviously decreased from the 1960s to the early 1970s, and afterwards gradually increased with an accumulated height increment more than 100 m. The successive running t-test showed that a remarkable abrupt change of mean height occurred in the Altai Mountains in 1972, the southern slopes of the Tianshan Mountains in 1976, and the northern slopes in 1979, but no remarkable change happened in the Kunlun Mountains. The mean height obviously increased all over Xinjiang except the Kunlun Mountains. Although there were various differences in four sub-areas of Xinjiang, the increasing trend of mean height was rather consistent from the end of 1980s to 1999 over

文档评论(0)

l215322 + 关注
实名认证
内容提供者

该用户很懒,什么也没介绍

1亿VIP精品文档

相关文档