Global multiple tropopause features derived from COSMIC radio occultation data during 2007 to 2012
Global multiple tropopause features derived from COSMIC radio occultation data during 2007 to 2012
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2007 年至 2012 年 COSMIC 射电掩星数据得出的全球多重对流层顶特征
DOI：
10.1002/2014jd021620
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发表时间：
2014-07
影响因子：
4.4
通讯作者：
Zhang Xiaohong
中科院分区：
文献类型：
--
作者：
Xu Xiaohua;Gao Pan;Zhang Xiaohong
本文利用气象、电离层和气候星座观测系统（COSMIC）使命2007年1月至2012年12月期间全球定位系统无线电掩星测量的温度廓线，给出了多个对流层顶（MT）气候的时空结构。研究了对流层顶的气候特征，包括对流层顶与急流的关系，对流层顶的年际变化和趋势，对流层顶的季节和地理变化，以及不同季节对流层顶特征的纬向分布。我们的结果与早期基于其他数据集的研究结果一致。此外，我们发现了一些新的MT功能。在2007年至2012年期间，包括（不包括）抽样误差，全球DT的发生率分别增加了约0.15% ± 0.09%（0.13% ± 0.09%）。热带外地区尤其是亚热带地区DT的发生率呈上升趋势，热带地区DT的发生率呈下降趋势。同时发现，在30°N ~ 40°N之间，DTs出现的季节变化最大，比南半球强得多。2009年冬季至2010年春季DT的发生率远低于其他年份同期。
The spatiotemporal structure of the climatology of multiple tropopauses (MTs) is presented in this paper by using the temperature profiles from the Global Positioning System radio occultation measurements from the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) mission between January 2007 and December 2012. Various climatological characteristics about MTs are studied, including the relationship between the occurrence of double tropopauses (DTs) and jet streams, the interannual variation and the trends of the occurrence of DTs, the seasonal and geographical variations of the occurrence of MTs, and the meridional distributions of the features of MTs in different seasons. Our results agree well with those of earlier studies based on other data sets. In addition, we find some new MT features. A global increase of the occurrence of DTs of about 0.15% ± 0.09% yr−1 (0.13% ± 0.09% yr−1) is found between 2007 and 2012 including (excluding) the sampling errors, respectively. There is an increasing trend of the occurrence of DTs in the extratropics, especially in the subtropics in both hemispheres, and a decreasing trend in the tropics. We also find that the maximum seasonal variation of the occurrence of DTs is located between 30°N and 40°N, which is much stronger than that in the Southern Hemisphere. The occurrence of DTs is much lower from the winter of 2009 to the spring of 2010 than during the same time period of other years.
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影响因子：
56.9
作者：
Santer, BD;Wehner, MF;Brüggemann, W
通讯作者：
Brüggemann, W
利用GPS无线电掩星资料分析中国上空对流层顶的结构和变化
影响因子：
2.4
作者：
Xiaohua Xu;Jia Luo;Kefei Zhang
通讯作者：
Kefei Zhang
影响因子：
3.7
作者：
Chen X;Añel JA;Su Z;de la Torre L;Kelder H;van Peet J;Ma Y
通讯作者：
Ma Y
影响因子：
--
作者：
L. Pan;W. Randel;J. Gille;William D. Hall;B. Nardi;S. Massie;V. Yudin;R. Khosravi;P. Konopka;D. Tarasick
通讯作者：
L. Pan;W. Randel;J. Gille;William D. Hall;B. Nardi;S. Massie;V. Yudin;R. Khosravi;P. Konopka;D. Tarasick
影响因子：
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作者：
W. Randel;Fei Wu;Waleska Rivera Ríos
通讯作者：
W. Randel;Fei Wu;Waleska Rivera Ríos