GPM GROUND VALIDATION TWO-DIMENSIONAL VIDEO DISDROMETER (2DVD) IFLOODS V1

The GPM Ground Validation Two-Dimensional Video Disdrometer (2DVD) IFloodS dataset was collected during the GPM Ground Validation Iowa Flood Studies (IFLoodS) field campaign in central-northeastern Iowa in 2013. This campaign aimed to improve satellite precipitation measurements for flood prediction by using ground measurements to improve satellite retrieval algorithms. The Two-Dimensional Video Disdrometer (2DVD), developed by Joanneum Research (Graz, Austria), measures raindrop characteristics such as size distribution, shape, and velocity. The 2DVD IFloodS data was collected from 6 sites from April 3, 2013 to June 18, 2013. Officially, the IFloodS campaign ran from May 1 to June 15, 2013 but the 2DVD instruments were installed and calibrated prior to the start, allowing for the wider period of record. The dataset contains daily ASCII files that include measurements for various precipitation parameters.

GPM 地面验证二维视频液滴谱仪（2DVD）IFloodS 数据集于 2013 年在爱荷华州中部东北部的 Iowa Flood Studies（IFloodS）野外考察活动中采集。此次考察旨在通过地面测量来优化卫星降水测量，从而提升洪水预测的准确性。二维视频液滴谱仪（2DVD），由奥地利格拉茨的 Joanneum Research 开发，能够测量雨滴特征，诸如尺寸分布、形状和速度等。2DVD IFloodS 数据自 2013 年 4 月 3 日至 6 月 18 日在 6 个地点收集。IFloodS 考察活动正式于 2013 年 5 月 1 日至 6 月 15 日进行，但 2DVD 仪器在活动开始前已安装并校准，因此记录期得以延长。该数据集包含每日的 ASCII 文件，其中包含了多种降水参数的测量数据。