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Description

The UND Cloud Microphysics IMPACTS dataset consists of cloud particle measurements 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. The UND Cloud Microphysics IMPACTS dataset files are stored in ASCII format from January 25, 2020, through February 28, 2023.

Product Summary

Platforms
NASA P-3
Instruments
2DS ,
CDP ,
CPI ,
HVPS ,
NEVZOROV PROBE ,
PMS KING PROBE ,
ROSEMOUNT PROBES
Spatial Extent

N: 48.237 S: 33.261 E: -64.987 W: -95.243

Location
UNITED STATES OF AMERICA
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2020-01-25 to 2023-02-28
Data Partner
Global Hydrometeorology Resource Center, Marshall Space Flight Center, NASA (NASA/MSFC/GHRC)
Concept ID
C1997744632-GHRC_DAAC
Data State
COMPLETE
Number of Files/Granules
74
Processing Level
2
Published
Updated
Science Keywords
Cloud Microphysics

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

David Delene, M. P. (2025). UND Cloud Microphysics IMPACTS [Data set]. NASA Global Hydrometeorology Resource Center Distributed Active Archive Center. https://doi.org/10.5067/IMPACTS/MULTIPLE/DATA101 Date Accessed: 2026-05-13

Documents

Publications Citing This Dataset

Filters
Title Year Author Topic
In-cloud characteristics observed in northeastern and midwestern US non-orographic winter storms with implications for ice particle mass growth and residence time Allen, Luke R., Yuter, Sandra E., Crowe, Declan M., Miller, Matthew A., Thornhill, K. Lee Cloud Microphysics, Cloud Liquid Water/Ice, Cloud Droplet Concentration/Size, Particle Size Distribution, Flight Level Winds, Wind Speed, Wind Direction, Relative Humidity, Potential Temperature, Atmospheric Pressure Measurements, Atmospheric Temperature Indices, Airspeed/Ground Speed, Attitude Characteristics, Atmospheric Precipitation Indices, Cloud Dynamics, Radar Reflectivity, Doppler Velocity, Radar Reflectivity, Doppler Velocity, SPECTRUM WIDTH
Evaluation of Physical Microphysical Property Retrieval Algorithms During the 2020 IMPACTS Field Campaign Nicholls, Stephen D., Heymsfield, Andrew, Heymsfield, Gerald M., Yorks, John E., Bansemer, Aaron, Aubry, Clemantyne, Deng, Min, Delanoe, Julien Cloud Microphysics, Cloud Liquid Water/Ice, Cloud Droplet Concentration/Size, Particle Size Distribution, Relative Humidity, Potential Temperature, Atmospheric Pressure Measurements, Wind Speed, Atmospheric Temperature Indices, Airspeed/Ground Speed, Attitude Characteristics, Geolocation, Cloud Droplet Distribution, Water Vapor Indicators, Aerosol Backscatter, Lidar Depolarization Ratio, Optical Depth/Thickness, Atmospheric Precipitation Indices, Cloud Dynamics, Radar Reflectivity, Doppler Velocity, Radar Reflectivity, Doppler Velocity, SPECTRUM WIDTH
Electrification Within Wintertime Stratiform Regions Sampled During the 2020/2022 NASA IMPACTS Field Campaign Harkema, Sebastian S., Carey, Lawrence D., Schultz, Christopher J., Mansell, Edward R., Berndt, Emily B., Fierro, Alexandre O., Matsui, Toshi Cloud Microphysics, Cloud Liquid Water/Ice, Cloud Droplet Concentration/Size, Particle Size Distribution, Lightning, Radiance, Electric Field
Radar retrieval evaluation and investigation of dendritic growth layer polarimetric signatures in a winter storm Dunnavan, Edwin L., Carlin, Jacob T., Hu, Jiaxi, Bukovcic, Petar, Ryzhkov, Alexander V., McFarquhar, Greg M., Finlon, Joseph A., Matrosov, Sergey Y., Delene, David J. Cloud Microphysics
Remote Sensing of Electric Fields Observed Within Winter Precipitation During the 2020 Investigation of Microphysics and Precipitation for Atlantic CoastThreatening ... Schultz, Christopher J., Harkema, Sebastian S., Mach, Douglas M., Bateman, Monte, Lang, Timothy J., Heymsfield, Gerald M., McLinden, Matthew L., Li, Lihua, Poellot, Michael, Sand, Kendra Cloud Microphysics, Cloud Liquid Water/Ice, Cloud Droplet Concentration/Size, Particle Size Distribution, Relative Humidity, Potential Temperature, Atmospheric Pressure Measurements, Wind Speed, Atmospheric Temperature Indices, Airspeed/Ground Speed, Attitude Characteristics, Lightning, Radiance, Electric Field, Wind Profiles, Temperature Profiles, Geolocation, Cloud Dynamics, Doppler Velocity, Radar Reflectivity
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