GPM GROUND VALIDATION DUAL-FREQUENCY DUAL-POLARIZED DOPPLER RADAR (D3R) IFLOODS

The GPM Ground Validation Dual-frequency Dual-polarized Doppler Radar (D3R) IFloodS dataset contains radar reflectivity and doppler velocity measurements from the Iowa Flood Studies (IFloodS) campaign. This campaign aimed to improve satellite precipitation measurements for flood prediction by using ground measurements to improve satellite retrieval algorithms. The D3R was developed by a government-industry-academic consortium with funding from NASA's Global Precipitation Measurement (GPM) Project. It operates at the ku (13.91 GHz ± 25 MHz) and ka (35.56 GHz ± 25 MHz) frequencies covering a fixed range from 450 m to 39.75 km. The D3R IFloodS dataset is available from May 9, 2013 through June 13, 2013 in netCDF-3 format with corresponding browse imagery available in PNG format.

GPM 地面验证双频双极化多普勒雷达（D3R）IFloodS 数据集收录了来自爱荷华洪水研究（IFloodS）项目中的雷达反射率和多普勒速度测量数据。该项目旨在通过利用地面测量数据来优化卫星降水测量，从而提升洪水预测的准确性。D3R 雷达系统由政府、产业和学术界联合开发，并得到了美国国家航空航天局（NASA）全球降水测量（GPM）项目的资金支持。该系统工作在 ku 波段（13.91 GHz ± 25 MHz）和 ka 波段（35.56 GHz ± 25 MHz），覆盖固定的距离范围，从 450 米至 39.75 公里。D3R IFloodS 数据集以 netCDF-3 格式提供，时间跨度为 2013 年 5 月 9 日至 2013 年 6 月 13 日，并附带 PNG 格式的浏览图像。