Particle Habit Imaging and Polar Scattering Probe (PHIPS) IMPACTS V1

The Particle Habit Imaging and Polar Scattering (PHIPS) Probes IMPACTS dataset consists of cloud particle imagery collected by the Particle Habit Imaging and Polar Scattering (PHIPS) probe onboard the NASA P-3 aircraft 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. PHIPS allows for the measurement of particle shape, size, and habit. The browse files in this dataset contain the post-processed particle-by-particle stereo images (2 images from different angles) collected by PHIPS during the campaign. The files are available from January 18, 2020, through February 28, 2023, in PNG format.

粒子形态与偏振散射成像探测（PHIPS）项目所采集的云粒子影像及偏振散射（PHIPS）探测器所获数据集，即IMPACTS数据集，由搭载于NASA P-3飞机上的PHIPS探测器在针对大西洋沿岸暴风雪的微物理和降水过程研究（IMPACTS）现场考察活动中收集。IMPACTS项目是一项为期三年的冬季部署序列，旨在研究美国大西洋沿岸的暴风雪（2020-2023年）。该考察旨在（1）提供对雪带形成、组织与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征及其可能的增长机制在雪带中的变化；（3）提升降雪遥感解释与建模能力，以显著推进预测技术的进步。PHIPS探测器能够测量粒子的形状、大小和习性。本数据集中的浏览文件包含PHIPS探测器在考察期间收集的经过后处理的粒子级立体影像（不同角度的2幅图像）。文件格式为PNG，自2020年1月18日至2023年2月28日可供获取。