...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE Geoscience and Remote Sensing Letters >Monitoring Deep Convection and Convective Overshooting From 60° S to 60° N Using MHS: A Cloudsat/CALIPSO-Based Assessment
【24h】

Monitoring Deep Convection and Convective Overshooting From 60° S to 60° N Using MHS: A Cloudsat/CALIPSO-Based Assessment

机译：使用MHS监测60°S至60°N的深对流和对流超调：基于Cloudsat / CALIPSO的评估

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

Spaceborne passive microwave sounders allow to detect convective storms thanks to their sensitivity to ice cloud particles. However, a worldwide assessment of the conditions under which these instruments can detect storms as well as a characterization of the microphysics of the detected storms is still missing. In this letter, we used ten-year measurements from Cloudsat radar and CALIPSO lidar to assess and characterize two convection diagnostics, namely, deep convection (DC) and convective overshooting (COV), derived from microwave humidity sounder measurements. When snow and sea ice-covered regions, such as Siberia and elevated regions (>1800 m) are discarded, DC and COV are associated with convective clouds, as identified by Cloudsat, more than 90% of time. COV reaches the Tropopause in 51% of cases. Results also show that ice water content (IWC) profiles peak higher for COV (9 km) than DC (7 km), with a heavier average ice loading for DC (0.9 g/m3) than for COV (0.8 g/m3). Maximal altitude reached by ice clouds is higher in the tropics than in the midlatitudes (16.1 km against 12.7 km in average for COV events), while average IWC is slightly higher in the tropics (0.21 g/m3 against 0.18 g/m3 for DC events). This evaluation and characterization open the doors to the development of a unique 60° S/60° N, 1999-present database of DC and COV using spaceborne passive microwave sounders.
机译：太空无源微波探测器由于对冰云颗粒敏感，因此可以检测对流风暴。但是，对于这些仪器可以检测到风暴的条件的全球评估以及所检测到风暴的微观物理特征仍然缺乏。在这封信中，我们使用了Cloudsat雷达和CALIPSO激光雷达的十年测量结果来评估和表征两种对流诊断，即深对流（DC）和对流超调（COV），它们是从微波湿度探测器测量得出的。丢弃西伯利亚和高海拔地区（> 1800 m）等被冰雪覆盖的地区时，DCs和COV与对流云相关联（如Cloudsat所确定的），时间超过90％。在51％的病例中，COV达到了对流线虫。结果还显示，COV（9 km）的冰水含量（IWC）峰值高于DC（7 km），DC（0.9 g / m3）的平均冰负荷比COV（0.8 g / m3）高。热带地区的冰云达到的最高高度比中纬度更高（COV事件的平均高度为16.1 km，平均为12.7 km），而热带地区的平均IWC略高（DC事件的平均IWC为0.21 g / m3，0.18 g / m3 ）。这项评估和鉴定为使用太空无源微波测深仪开发独特的60°S / 60°N，1999年至今的DC和COV数据库打开了大门。

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