GPM GROUND VALIDATION AUTONOMOUS PARSIVEL UNIT (APU) NSSTC V1

The GPM Ground Validation Autonomous Parsivel Unit (APU) NSSTC dataset was collected by the Autonomous Parsivel Unit (APU), which is an optical disdrometer based on single particle extinction that measures particle size and fall velocity. This APU consists of the Parsivel, which was developed by OTT in Germany, and its support systems, which were designed and built by the University of Alabama in Huntsville. This dataset provides rainfall data for the Global Precipitation Measurement (GPM) Mission Ground Validation Experiment collected at the National Space Science Technology Center (NSSTC) in Huntsville, Alabama. The validation effort will entail numerous GPM-specific and joint-agency/international external field campaigns, using state of the art cloud and precipitation observational infrastructure. Surface rainfall will be measured by very dense rain gauge and disdrometer networks at various field campaign sites. There may be occasional gaps in the data when the instrument is not resident at the NSSTC and is sent to participate in field campaigns.

GPM 地面验证自主 Parsivel 单元 (APU) NSSTC 数据集由自主 Parsivel 单元 (APU) 收集而成，该单元基于单颗粒消光原理的光学谱仪，用于测量颗粒大小和下降速度。该 APU 包括德国 OTT 开发的 Parsivel，以及由阿拉巴马大学亨茨维尔分校设计和构建的支持系统。本数据集提供了全球降水测量 (GPM) 任务地面验证实验在阿拉巴马州亨茨维尔的国家空间科学技术中心 (NSSTC) 收集的降水数据。验证工作将涉及多个 GPM 特定和联合机构/国际外部现场活动，利用最先进的云和降水观测基础设施。地面降水将通过非常密集的雨量计和谱仪网络在各个现场活动地点进行测量。当仪器不在 NSSTC 并被派遣参与现场活动时，数据中可能会有偶尔的缺失。