NCAR Particle Probes IMPACTS V1

The NCAR Particle Probes IMPACTS dataset consists of data collected from six instruments on the NASA P-3 aircraft, the SPEC Hawkeye Cloud Particle Imager (CPI), the Hawkeye Fast Cloud Droplet Probe (FastCDP), the Hawkeye Two-Dimensional Stereo Probe (Hawkeye2D-S), the SPEC Two-Dimensional Stereo probe (2D-S), and two SPEC High Volume Precipitation Spectrometers (HVPS3). The 2D-S and HVPS3 are two-dimensional optical array probes which record images of particles that travel through their sampling area. The recorded images are then analyzed to produce particle size distributions from 20 microns to 3 centimeters in diameter. The FastCDP is a forward scattering instrument designed to measure the size and concentration of cloud droplets between 2 and 50 microns in diameter. The CPI is a high-resolution imager with a 256-level color depth. No particle concentration estimates have been attempted with the CPI. These data were collected during the Investigation of Microphysics and Precipitation for Atlantic Coast-Threatening Snowstorms (IMPACTS) field campaign, a three-year sequence of winter season deployments conducted to study snowstorms over the U.S Atlantic coast. IMPACTS 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. Data files are available in netCDF-4 format, as well as browse imagery available in PNG format, from January 18, 2020 through February 26, 2020, and January 14, 2022 through February 25, 2022.

Data and Resources

Additional Info

Field Value
Maintainer undefined
Last Updated March 31, 2025, 14:24 (UTC)
Created March 31, 2025, 14:24 (UTC)
accessLevel public
bureauCode {026:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://data.nasa.gov/data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
citation Bansemer, Aaron , David Delene, Andrew J Heymsfield, Joseph O'Brien, Michael R Poellot, Kendra Sand, Greg Sova, Jennifer Moore and Christian Nairy.2022. NCAR Particle Probes IMPACTS [indicate subset used]. Dataset available online from the NASA Global Hydrometeorology Resource Center DAAC, Huntsville, Alabama, U.S.A. DOI: http://dx.doi.org/10.5067/IMPACTS/PROBES/DATA101
graphic-preview-description Browse images illustrate the nature and coverage of the data
graphic-preview-file https://ghrc.nsstc.nasa.gov/pub/fieldCampaigns/impacts/NCAR_Particle_Probes/data/images/
harvest_object_id eba219a8-210c-47cf-8c0d-426d6215ac5d
harvest_source_id 61638e72-b36c-4866-9d28-551a3062f158
harvest_source_title DNG Legacy Data
identifier C1995868627-GHRC_DAAC
issued 2022-03-23
landingPage https://doi.org/10.5067/IMPACTS/PROBES/DATA101
language {en-US}
metadata_type geospatial
modified 2023-01-26
programCode {026:001}
publisher NASA/MSFC/GHRC
resource-type Dataset
source_datajson_identifier true
source_hash 3aeae557e28f5dd2c77a4c927ac23c3fc3fc78ef89388b0502ceea790d2bc730
source_schema_version 1.1
spatial -90.4287 33.2614 -64.9866 47.2751
temporal 2020-01-18T18:00:00Z/2022-02-25T19:29:00Z
theme {IMPACTS,geospatial}