GPM GROUND VALIDATION NOAA S-BAND PROFILER RAW DATA SPC FORMAT MC3E

The GPM Ground Validation NOAA S-Band Profiler Raw Data SPC Format MC3E dataset is the S-band Profiler Raw dataset was saved in Vaisala SPC format. The numeric values in both formats are exactly the same. The overarching goal was to provide the most complete characterization of convective cloud systems, precipitation, and the environment that has ever been obtained, providing constraints for model cumulus parameterizations and space-based rainfall retrieval algorithms over land that had never before been available. The S-band Profiler Raw dataset in the proprietary Vaisala SPC format was gathered during the Midlatitude Continental Convective Clouds Experiment (MC3E) in Oklahoma April 8, 2011 to June 7, 2011 and consists of uncalibrated Doppler velocity spectra data in units of relative power return. The S-band 2.8 GHz profiler points vertically and measures the backscattered power from raindrops and ice particles as precipitating cloud systems pass overhead. The profiler processes radar pulses during a 7-second dwell before calculating and saving uncalibrated Doppler velocity spectra at each range gate that were separated by 60-meters vertically. Data collected during each hour are saved in two files. All precipitation mode profiles are saved in one hourly data file and all attenuated mode profiles are saved in another hourly data file. Calibrated data can be obtained from the S-band Original Dwell and Minute datasets. Specialized read software may be purchased from Vaisala.

GPM 地面验证项目之 NOAA S波段廓线仪原始数据（SPC 格式）MC3E 数据集，系将 S波段廓线仪原始数据保存于 Vaisala SPC 格式。两种格式中的数值完全一致。该数据集的总体目标是为历来获取的最为全面的雷暴云系统、降水及其环境特征提供详细描述，为模型中积云参数化以及陆地上的基于空间降雨检索算法提供前所未有的约束。S波段廓线仪原始数据集以专有 Vaisala SPC 格式收集于美国俄克拉荷马州进行的 Midlatitude Continental Convective Clouds Experiment (MC3E) 期间，即 2011 年 4 月 8 日至 2011 年 6 月 7 日，包含未经校准的多普勒速度谱数据，单位为相对功率回波。S波段 2.8 GHz 廓线仪垂直指向，测量降水云系统经过头顶时雨滴和冰粒子的后向散射功率。在 7 秒的停留时间内，廓线仪处理雷达脉冲，并在每个垂直方向上间隔 60 米的范围门处计算并保存未经校准的多普勒速度谱。每小时收集的数据分别保存在两个文件中。所有降水模式廓线保存在一个每小时数据文件中，而所有衰减模式廓线保存在另一个每小时数据文件中。校准数据可从 S波段原始停留时间和分钟数据集中获得。可从 Vaisala 购买专门的读取软件。