29 May 2012 DC3 PASIV Archive. Version 1.0

This dataset contains the National Severe Storms Laboratory (NSSL) Particle Size, Image, and Velocity (PASIV) probe observations during the Deep Convective Clouds and Chemistry (DC3) experiment in the spring of 2012. The PASIV probe is a balloonborne microphysics probe that was used to collect in situ microphysics observations inside severe convection during the project. There were two cases, 21 June 2012 and 29 May 2012 and this dataset contains the data for the 29 May 2012 case. This dataset contains video files as recorded from the camera on the PASIV probe which captures particles passing through the instrument viewing chamber.The Parsivel file is a text file containing Parsivel output, including binned particle data, every 10 seconds as particles pass through the laser beam of the Parsivel during the flight. The T230946.txt file is the radiosonde data, output every 1 second. Please see the readme file for more information on this dataset. Note that this dataset contains large files.

本数据集收录了2012年春季深层对流云与化学（Deep Convective Clouds and Chemistry, DC3）实验期间，美国国家强风暴实验室（National Severe Storms Laboratory, NSSL）的粒径、图像与速度（Particle Size, Image, and Velocity, PASIV）探空仪的观测数据。PASIV探空仪为一种气球载微物理探头，用于在本项目中对强对流系统内部开展原位微物理观测。本次实验共设置两个观测案例：2012年6月21日与2012年5月29日，本数据集仅包含2012年5月29日案例的相关数据。本数据集包含PASIV探空仪搭载摄像机录制的视频文件，该摄像机可捕捉穿过仪器观测腔的粒子图像。Parsivel格式文件为文本文件，每10秒记录一次粒子穿过Parsivel激光束时输出的分箱粒子数据。文件T230946.txt为探空观测数据，采样间隔为每秒1次。有关本数据集的更多详细信息，请参阅配套自述文件。请注意，本数据集包含大体积文件。