Extratropical Cyclone Hydrometeor Vertical and Horizontal Spatial Correlation Structure

温带气旋水凝物垂直和水平空间相关结构

• 批准号: 1216319
• 负责人: Roger Marchand
• 金额: $ 20.16万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-08-01 至 2015-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1216319&HistoricalAwards=false
• 关键词: Extratropical; Cyclone; Hydrometeor; Vertical; Horizontal

This project will investigate the vertical and horizontal spatial structure of hydrometeor (cloud and precipitation) fields using statistical correlation analysis applied to observed radar reflectivity as evidenced in satellite data e.g. CloudSat, derived surface rain-rates and other satellite data (including AMSR-E, MODIS, and CERES retrievals). Preliminary analysis incorporating all observations regardless of synoptic conditions, has indicated that southern hemisphere extratropics have longer correlation lengths of hydrometeor occurrence in the horizontal and vertical than the northern hemisphere, however there are shorter correlation lengths in precipitation occurrence. To gain insight into such hemispheric differences, the plan is to draw out factors controlling precipitation and cloud structure in cyclones applying compositing techniques in the South Pacific region. This project will advance discovery and understanding while at the same time promote teaching and learning by supporting directly a graduate student researcher, who will give local seminars on this research, as well as disseminate research results through conference presentations and peer-review publications.

该项目将利用统计相关分析来研究水凝物（云和降水）场的垂直和水平空间结构，该分析应用于观测到的雷达反射率，如卫星数据中所证明的那样。 CloudSat，导出的表面降雨率和其他卫星数据（包括 AMSR-E、MODIS 和 CERES 检索）。无论天气条件如何，综合所有观测结果的初步分析表明，南半球温带地区水汽凝结发生的水平和垂直相关长度比北半球更长，但降水发生的相关长度较短。为了深入了解这种半球差异，该计划是利用南太平洋地区的合成技术找出控制气旋降水和云结构的因素。 该项目将促进发现和理解，同时通过直接支持研究生研究人员来促进教学和学习，研究生研究人员将举办有关该研究的当地研讨会，并通过会议演讲和同行评审出版物传播研究成果。