SBU Micro Rain Radar 2 (MRR2) IMPACTS

The SBU Micro Rain Radar 2 (MRR-2) IMPACTS dataset consists of reflectivity, Doppler velocity, signal-to-noise ratio, spectral width, droplet size, Liquid Water Content, melting layer, drop size distribution, rain attenuation, rain rate, and radial velocity data collected during the Investigation of Microphysics and Precipitation for Atlantic Coast-Threatening Snowstorms (IMPACTS) field campaign. IMPACTS was a three-year sequence of winter season deployments conducted to study snowstorms over the U.S. Atlantic Coast (2020-2023). The campaign aimed to (1) Provide observations critical to understanding the mechanisms of snowband formation, organization, and evolution; (2) Examine how the microphysical characteristics and likely growth mechanisms of snow particles vary across snowbands; and (3) Improve snowfall remote sensing interpretation and modeling to significantly advance prediction capabilities. Both the MRR-2 and the MRR-PRO instruments were used to collect data for this dataset. The dataset files are available from January 1, 2020 through March 2, 2023 in netCDF-3 and netCDF-4/CF formats.

SBU微雨雷达2（MRR-2）IMPACTS数据集汇聚了反射率、多普勒速度、信噪比、频谱宽度、液滴尺寸、液态水含量、融化层、液滴尺寸分布、雨衰减、降雨率和径向速度等数据，这些数据是在对大西洋沿岸威胁性暴风雪的微物理和降水调查（IMPACTS）现场活动中收集的。IMPACTS是一项为期三年的冬季部署序列（2020-2023），旨在研究美国大西洋沿岸的暴风雪。该活动旨在：（1）提供对理解雪带形成、组织和演化的机制至关重要的观测数据；（2）探讨雪粒子的微物理特性和可能的增长机制在不同雪带中的变化；（3）提高降雪遥感解释和建模能力，以显著提升预测能力。在此数据集的收集过程中，同时使用了MRR-2和MRR-PRO仪器。数据集文件自2020年1月1日起至2023年3月2日止，以netCDF-3和netCDF-4/CF格式提供。