GPM Ground Validation Optical Disdrometer (ODM) LPVEx

The GPM Ground Validation Optical Disdrometer (ODM) LPVEx dataset consists of precipitation particle size distribution data collected by the Eigenbrodt Optical Disdrometer (ODM) deployed onboard the RV Aranda research vessel. ODM was specifically designed to measure precipitation on ship-based platforms that experience high and variable winds. ODM’s ability to maintain the optimal orientation with respect to the wind allows it to obtain more accurate precipitation measurements in this type of environment. The ODM data were collected as part of the Light Precipitation Validation Experiment (LPVEx) in September and October of 2010 around the Gulf of Finland. The overarching goals of LPVEx were to detect and understand the process of light rainfall formation at high latitudes and to conduct a comprehensive evaluation of precipitation algorithms for current and future satellite platforms. The ODM dataset files are available in ASCII text format from September 15 through September 26, 2010.

GPM 地面验证光学谱仪（ODM）低量级降水实验（LPVEx）数据集包含了在 RV Aranda 研究船平台上，通过 Eigenbrodt 光学谱仪（ODM）收集的降水粒子尺寸分布数据。ODM 是一种专为测量经历强烈且多变风力的船载平台上的降水而设计的仪器。ODM 能够根据风向保持最佳朝向，从而在此类环境中获得更为精确的降水测量数据。ODM 数据是在 2010 年 9 月至 10 月期间，围绕芬兰湾进行的低量级降水验证实验（LPVEx）的框架内收集的。LPVEx 的总体目标在于探测和理解高纬度地区轻雨形成的机理，并对现有及未来卫星平台的降水算法进行全面评估。ODM 数据集文件以 ASCII 文本格式提供，时间范围从 2010 年 9 月 15 日至 9 月 26 日。