Analysis of Tropical Waves Using Water Vapor Imagery

使用水蒸气图像分析热带波

• 批准号: 0003351
• 负责人: William Frank
• 金额: $ 17.7万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-01-01 至 2003-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0003351&HistoricalAwards=false
• 关键词: Analysis; Tropical; Waves; Using; Water

Under this award, Dr. Frank will develop a climatology of tropical waves by combining diagnostic analyses of satellite-derived data sets with global weather analysis fields. The study will focus on waves with periods of 3-15 days, principally mixed Rossby-gravity waves, equatorial Rossby waves, and synoptic-scale easterly waves. A novel aspect of the study will be the use of precipitable water data, obtained from the NASA Water Vapor Project (NVAP), as the primary tool for identifying and tracking waves. This data set should permit identification of waves in convectively inactive regions of the tropics and complements the use of outgoing long-wave radiation (OLR) for the convectively active regions in the tropics. The study will make use of 10 years of NVAP precipitable water data, OLR data, and global analysis fields from the European Center for Medium Range Forecasts.

根据该奖项，Frank博士将通过将卫星数据集的诊断分析与全球天气分析领域相结合，开发热带海浪气候学。 研究将侧重于周期为3-15天的波，主要是混合Rossby重力波、赤道Rossby波和天气尺度东风波。 这项研究的一个新方面将是使用从美国宇航局水汽项目（NVAP）获得的可降水量数据，作为识别和跟踪波浪的主要工具。 该数据集应允许识别热带对流不活跃地区的波，并补充热带对流活跃地区向外长波辐射（OLR）的使用。 这项研究将利用10年的NVAP可降水量数据、OLR数据和欧洲中期预报中心的全球分析场。