GPM GROUND VALIDATION NOAA UHF 449 PROFILER MC3E

The GPM Ground Validation NOAA UHF 449 Profiler MC3E dataset was collected during the NASA supported Midlatitude Continental Convective Clouds Experiment (MC3E). The overarching goal was to provide the most complete characterization of convective cloud systems, precipitation, and the environment that has ever been obtained, providing constraints for model cumulus parameterizations and space-based rainfall retrieval algorithms over land that had never before been available. The Ultra High Frequency 449 MHz profiler was one of three NOAA deployed instruments which also included a Parsivel and a 2.8 GHz profiler (S-Band). The 449 MHz profiler raw data files provide estimates of the vertical air motion during precipitation from near the surface to just below the freezing level. Used together with the S-band profiler, vertical profiles of raindrop size distributions can be retrieved. The raw 449MGx profiler data consists of uncalibrated Doppler velocity spectra data in units of relative power return.

本数据集为GPM地面验证NOAA超高频449MHz测风雷达MC3E数据集，该数据集系在NASA支持的北美中纬度大陆性对流云实验（MC3E）期间收集而成。其核心目标在于提供迄今为止对对流云系、降水及其环境的最全面描述，为模型积云参数化以及陆地上的空间降雨反演算法提供前所未有的约束。超高频449MHz测风雷达是NOAA部署的三种仪器之一，其余两种分别为Parsivel测风仪和2.8GHz测风雷达（S波段）。449MHz测风雷达的原始数据文件提供了从近地表至冻结层以下降水期间的垂直空气运动估计。与S波段测风雷达结合使用，可获取雨滴尺寸分布的垂直剖面。未经校准的多普勒速度谱数据以相对功率单位呈现，构成了449MGx测风雷达原始数据的主体。