Structure and Evolution of Southern Ocean Mesocyclones Using Multiple Satellite Systems

拟议的项目是一项研究，以确定气象 南大洋中气旋的特征 微波/成像仪（SSM/I）数据传感器，泰罗斯操作垂直 探测器（TOVS）数据和卫星雷达高度计数据， 中尺度气旋发生的选定个案研究，以及 与欧洲中心验证这些特征， 中期天气预报（ECMWF）分析。 它是共同的 印第安纳州大学和华盛顿大学的项目。 该项目将使用回收的卫星观测风， 大气湿度和热参数， 到之前从卫星上识别和编目的中气旋 图像分析 分析中将包括以下评价： SSM/I算法反演地面风场的性能， 水分参数 1992年冬季的风矢量 从欧洲遥感卫星获得的信息 （ERS-1）散射仪。 大规模 这些中气旋发生的环境将被研究， 与ECMWF诊断变量字段的比较 天气分析 该项目的预期成果是开发一个 南大洋中气旋概念和统计模式 进化 这是向包括以下内容迈出的必要的第一步： 业务数值分析中的极低过程， 预测方案，并确定其在 大气的总循环。

The proposed project is a study to determine the meteorological characteristics of Southern Ocean mesocyclones by combining Special Sensor Microwave/Imager (SSM/I) data, TIROS Operational Vertical Sounder (TOVS) data, and satellite-based radar altimeter data for selected case studies of mesoscale cyclone occurrences, and validating these characteristics with European Center for Medium-Range Weather Forecasts (ECMWF) analyses. It is a joint project of Indiana University and the University of Washington. The project will use retrieved satellite observations of winds, atmospheric moisture, and thermal parameters that will be applied to mesocyclones previously identified and catalogued from satellite image analyses. Included in the analyses will be an evaluation of the performance of SSM/I algorithms in retrieving surface winds and moisture parameters. For the austral winter of 1992 wind vector information obtained from the European Remote Sensing satellite (ERS-1) scatterometer will be included. The large-scale environment in which these mesocyclones occur will be studied by comparison with fields of diagnostic variables taken from the ECMWF synoptic analyses. The expected result of this project is the development of a conceptual and statistical model of Southern Ocean mesocyclone evolution. This is a necessary first step toward the inclusion of polar low processes in operational numerical analysis and prediction schemes, and the determination of their role in the general circulation of the atmosphere.