...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Atmospheric chemistry and physics >The SCOUT-O3 Darwin Aircraft campaign: Rationale and meteorology
【24h】

The SCOUT-O3 Darwin Aircraft campaign: Rationale and meteorology

机译：SCOUT-O3达尔文飞机运动：基本原理和气象

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

An aircraft measurement campaign involving the Russian high-altitude aircraft M55 Geophysica and the German DLR Falcon was conducted in Darwin, Australia in November and December 2005 as part of the European integrated project SCOUT-O3. The overall objectives of the campaign were to study the transport of trace gases through the tropical tropopause layer (TTL), mechanisms of dehydration close to the tropopause, and the role of deep convection in these processes. In this paper a detailed roadmap of the campaign is presented, including rationales for each flight, and an analysis of the local and large-scale meteorological context in which they were embedded. The campaign took place during the pre-monsoon season which is characterized by a pronounced diurnal evolution of deep convection including a mesoscale system over the Tiwi Islands north of Darwin known as "Hector". This allowed studying in detail the role of deep convection in structuring the tropical tropopause region, in situ sampling convective overshoots above storm anvils, and probing the structure of anvils and cirrus clouds by Lidar and a suite of in situ instruments onboard the two aircraft. The large-scale flow during the first half of the campaign was such that local flights, away from convection, sampled air masses downstream of the "cold trap" region over Indonesia. Abundant cirrus clouds enabled the study of active dehydration, in particular during two TTL survey flights. The campaign period also encompassed a Rossby wave breaking event transporting stratospheric air to the tropical middle troposphere and an equatorial Kelvin wave modulating tropopause temperatures and hence the conditions for dehydration.
机译：作为欧洲综合项目SCOUT-O3的一部分，于2005年11月和12月在澳大利亚达尔文市进行了一次涉及俄罗斯高空飞机M55 Geophysica和德国DLR Falcon的飞机测量运动。该运动的总体目标是研究痕量气体通过热带对流层顶层（TTL）的传输，靠近对流层顶的脱水机制以及深对流在这些过程中的作用。在本文中，提出了该运动的详细路线图，包括每次飞行的原理，并分析了嵌入其中的当地和大规模气象环境。这场运动是在季风前季节进行的，其特征是深对流的昼夜变化明显，包括达尔文以北的蒂维群岛上被称为“赫克托”的中尺度系统。这样就可以详细研究深对流在构造热带对流层顶区域，对暴风砧以上的对流超调进行原位采样以及利用雷达和两架飞机上的一套现场仪器探测砧和卷云结构方面的作用。竞选活动的前半部分大规模流动，以致本地航班远离对流，对印度尼西亚“冷阱”区域下游的空气质量进行了采样。丰富的卷云使人们能够研究主动脱水，特别是在两次TTL测量飞行期间。竞选期间还包括将平流层空气输送到热带对流层中的罗斯比海浪破裂事件和调节对流层顶温度以及因此造成脱水条件的赤道开尔文波。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号