维普中文期刊产品整合服务

Trend in the atmospheric heat source over the central and eastern Tibetan Plateau during recent decades: Comparison of observations and reanalysis data

查看全文 作　　者：WANG [1,2]MeiRong;ZHOU [1]ShunWu;DUAN [2]AnMin 高影响力作者 机构地区：[1]Nanjing University oflnformation Science&Technology,Nanjing 210044,China;[2]Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China高影响力机构 出　　处：《Chinese Science Bulletin》索引2012年第57卷第5期,共10页高影响力期刊 基　　金：supported by the Chinese Ministry of Science and Technology (2010CB951703 and 2009CB421403);the Knowledge Innovation Program of Chinese Academy of Sciences (KZCX2-YW-Q11- 01);the National Natural Science Foundation of China (40975047) 摘　　要：The trend in the atmospheric heat source over the central and eastern Tibetan Plateau (CE-TP) is quantitatively estimated using historical observations at 71 meteorological stations, three reanalysis datasets from 1980-2008, and two satellite radiation datasets from 1984-2007. Results show that a weakening of sensible heat (SH) flux over the CE-TP continues. The most significant trend occurs in spring, induced mainly by decelerated surface wind speeds. The ground-air temperature difference shows a notable increasing trend over the last 5 years. Trends in net radiation flux of the atmospheric column over the CE-TP, evaluated by two satellite radiation datasets, are clearly different. Trends in the atmospheric heat source calculated by the three reanalysis datasets are not completely consistent, and even show opposite signals. Results from the two datasets both show a weakening of the heat source but the magnitude of one is significantly stronger, whereas an increase is indicated by the other data. Therefore, it is challenging to accurately calculate the trend in the atmospheric heat source over the CE-TP, particularly from the estimates of the reanalysis datasets. 关 键 词：再分析资料 气象观测站 大气热源 青藏高原 净辐射通量 定量估计 数据集 感热通量
相关文献

参考文献(42)

引证文献(25)

耦合文献(840)

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1　渝公网安备 50019002500403号　违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费