Atmospheric Conditions during the Deep Propagating Gravity Wave Experiment (DEEPWAVE)
Atmospheric Conditions during the Deep Propagating Gravity Wave Experiment (DEEPWAVE)
复制标题
深传播重力波实验 (DEEPWAVE) 期间的大气条件
DOI：
10.1175/mwr-d-16-0435.1
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发表时间：
2017
影响因子：
3.2
通讯作者：
M. Rapp
中科院分区：
文献类型：
--
作者：
S. Gisinger;A. Dörnbrack;V. Matthias;J. Doyle;S. Eckermann;Benedikt Ehard;L. Hoffmann;B. Kaifler;C. Kruse;M. Rapp
本文描述了2014年南半球冬季深传播重力波实验(DEEPWAVE)期间大气条件的综合分析结果。不同的数据集和诊断结合在一起，以描述从对流层到中间层上层的背景大气。文中还介绍了天气状况和大气状态与气候条件的比较情况，以及它们与机载和地面重力波观测的关系。这项研究的主要结果是2014年6月至8月期间新西兰上空的对流层阻塞情况和低水平西南风气流占主导地位。发现变化的对流层顶逆温层与变化的垂直能量通量有关，因此是波反射的一个重要特征。副热带急流频繁地从S 30°的气候学位置向南转移，并最常参与到东太平洋的强山波强迫事件中。
AbstractThis paper describes the results of a comprehensive analysis of the atmospheric conditions during the Deep Propagating Gravity Wave Experiment (DEEPWAVE) campaign in austral winter 2014. Different datasets and diagnostics are combined to characterize the background atmosphere from the troposphere to the upper mesosphere. How weather regimes and the atmospheric state compare to climatological conditions is reported upon and how they relate to the airborne and ground-based gravity wave observations is also explored. Key results of this study are the dominance of tropospheric blocking situations and low-level southwesterly flows over New Zealand during June–August 2014. A varying tropopause inversion layer was found to be connected to varying vertical energy fluxes and is, therefore, an important feature with respect to wave reflection. The subtropical jet was frequently diverted south from its climatological position at 30°S and was most often involved in strong forcing events of mountain waves at t...