...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Atmospheric chemistry and physics >Ice injected into the tropopause by deep convection-Part 1: In the austral convective tropics
【24h】

Ice injected into the tropopause by deep convection-Part 1: In the austral convective tropics

机译：通过深入对流将冰重新注入到对象，第1部分：在澳洲对流热带地区

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

The contribution of deep convection to the amount of water vapour and ice in the tropical tropopause layer (TTL) from the tropical upper troposphere (UT; around 146 hPa) to the tropopause level (TL; around 100 hPa) is investigated.Ice water content (IWC) and water vapour (WV) measured in the UT and the TL by the Microwave Limb Sounder (MLS; Version 4.2) are compared to the precipitation (Prec) measured by the Tropical Rainfall Measurement Mission (TRMM; Version 007).The two datasets, gridded within 2° × 2° horizontal bins, have been analysed during the austral convective season, December, January, and February (DJF), from 2004 to 2017.MLS observations are performed at 01:30 and 13:30 local solar time, whilst the Prec dataset is constructed with a time resolution of 1 h.The new contribution of this study is to provide a much more detailed picture of the diurnal variation of ice than is provided by the very limited (two per day) MLS observations.Firstly, we show that IWC represents 70% and 50% of the total water in the tropical UT and TL, respectively, and that Prec is spatially highly correlated with IWC in the UT (Pearson's linear coefficient R=0:7).We propose a method that uses Prec as a proxy for deep convection bringing ice up to the UT and TL during the growing stage of convection, in order to estimate the amount of ice injected into the UT and the TL, respectively.We validate the method using ice measurements from the Superconducting Submillimeter-Wave Limb-Emission Sounder (SMILES) during the period DJF 2009–2010.Next, the diurnal cycle of injection of IWC into the UT and the TL by deep convection is calculated by the difference between the maximum and the minimum in the estimated diurnal cycle of IWC in these layers and over selected convective zones.Six tropical highly convective zones have been chosen: South America, South Africa, Pacific Ocean, Indian Ocean, and the Maritime Continent region, split into land (MariCont-L) and ocean (MariCont-O).IWC inje
机译：对热带上层对流层（UT;约146 HPA）的热带对流层（TTL）中的水蒸气和冰量的贡献研究了对流层水平（TL;大约100hpa）。含水量（IWC）和在UT中测量的水蒸气（WV）通过微波肢体声音（MLS;版本4.2）测量的TL与通过热带降雨测量任务（TRMM;版本007）测量的降水（ph）进行比较。在2°×2°水平箱内网格网格包装，在澳洲对流季节，1月，1月和2月（DJF）期间分析了2004年至2017年.MLS观察在01:30和13:30太阳时间，虽然预构建了一个时间分辨率，但是这项研究的新贡献是提供比由非常有限（每天两个）MLS提供的冰的昼夜变化的更详细图片观察。首先，我们表明IWC代表70％a在热带ut和tl中的总水分中的50％，并且之前与IWC在UT中的空间高度相关（Pearson的线性系数r = 0：7）.We提出了一种使用PROD作为代理的方法深入对流将冰升至ut和tl在日益增长的对流阶段，以便分别估计注入到ut和tl中的冰量。我们验证了使用超导亚峰值波肢体的冰测量的方法 - 发射声音（微笑）在期间DJF 2009-2010.next中，通过IWC估计的昼夜循环中的最大值和最小值之间的差异计算IWC进入UT和TL的昼夜循环这些层和过度选定的对流区。选择了热带高度对流的地区：南美洲，南非，太平洋，印度洋和海洋大陆地区，分为陆地（MariCont-L）和海洋（MariCont-O） 。它伤害

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