GPM GROUND VALIDATION CONICAL SCANNING MILLIMETER-WAVE IMAGING RADIOMETER (COSMIR) MC3E

The GPM Ground Validation Conical Scanning Millimeter-wave Imaging Radiometer (COSMIR) MC3E dataset used the Conical Scanning Millimeter-wave Imaging Radiometer (CoSMIR), which was utilized during the Midlatitude Continental Convective Clouds Experiment (MC3E) served as an airborne high-frequency simulator of the GPM Microwave Imager (GMI), which launched in 2014. The CoSMIR was modified with a new scan mode to acquire both conical and cross-track scan data simultaneously in a given flight satisfying the requirements of the Precipitation Measurement Mission (PMM) algorithm development team. The dataset provides well-calibrated radiometric data from 9 channels between 50-183 GHz with the accuracy on the order of +-1K. All channels besides the 89 and 165.5 GHz are horizontally polarized.

GPM 地面验证锥形扫描毫米波成像辐射计（COSMIR）MC3E 数据集采用锥形扫描毫米波成像辐射计（CoSMIR），该设备在2014年发射的 GPM 毫米波成像仪（GMI）中作为机载高频模拟器得到应用。CoSMIR 经过改进，新增了一种扫描模式，能够在特定飞行中同时获取锥形和横切扫描数据，以满足降水测量任务（PMM）算法开发团队的需求。该数据集提供了经过精确校准的辐射数据，包含9个频段（50-183 GHz）的辐射计数据，其精度达到 ±1K 的量级。除89 GHz 和 165.5 GHz 频段外，所有频段的极化方式均为水平极化。