MRI: Development: Development of a Ship-based C-Band Polarimetric Radar

这项拟议的研究旨在开发一种用于海上实地研究的舰载天气雷达。这种雷达将极大地提高我们对海洋天气系统的了解，远离陆基天气雷达的覆盖范围。从这台仪器获得的知识将提高我们对这些海洋天气系统的降雨量与陆地降雨量的不同之处的理解。这些测量反过来将提高我们对基于海洋的降水天气系统的物理和动力学的知识。从这些测量中获得的知识可能会改进我们在天气模型中计算世界辽阔海洋降雨量的方法。虽然不是部署在海上进行各种实地研究，但该雷达将为对雷达气象学最新技术感兴趣的学生和教职员工提供一个教学和学习平台。这种舰载C波段极化多普勒雷达将提供美国目前不存在的海洋能力。陆地和海洋降水过程的差异是众所周知的，但我们对这些过程的详细了解仍然存在差距。这些差异通常是不同的气溶胶浓度和陆地表面不同加热的函数，导致陆地上相对于海洋的垂直运动更强。该雷达将利用SHIP-CPOL雷达的双极化测量能力，通过更好的降水估计和微物理参数表征来帮助填补这些空白。这些数据还将作为当今用于估计世界辽阔海洋降水量的各种卫星遥感技术的地面事实。

The proposed research seeks to develop a ship-based weather radar for use in field studies at sea. This radar will greatly improve our knowledge of oceanic weather systems, far from the reach of land-based weather radars. The knowledge gained from this instrument will improve our understanding of how rainfall in these oceanic weather systems differs from rainfall over land. These measurements will in turn improve our knowledge of the physics and dynamics of ocean-based precipitating weather systems. The knowledge gained from these measurements may improve our methods to calculate rainfall over the vast oceans of the world in weather models. While not deployed at sea on various field studies, this radar will serve as a teaching and learning platform for students and faculty interested in the latest techniques in radar meteorology. This ship-based C-band, polarimetric Doppler radar will provide an oceanic capability that currently does not exist in the U.S. Differences in precipitation processes over land versus sea are well understood but gaps still exist in our detailed knowledge of these processes. These differences are often a function of varying aerosol concentrations and differential heating of land surfaces leading to stronger vertical motions over land versus the sea. This radar will help fill those gaps through better precipitation estimation and microphysical parameter characterization using the dual-polarization measurement capability from the Ship-CPOL radar. These data will also serve as ground truth for various satellite remote sensing techniques used today to estimate precipitation over the vast oceans of the world.