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Description

The Snowflake Measurement and Analysis System (SMAS) University of Connecticut (UCONN) dataset uses seven high-resolution cameras to reconstruct the three-dimensional structure of snowflakes based on photographs of the particles in freefall from multiple views. SMAS can measure and analyze multiple snowflakes at once. A CSV file is provided that includes additional details on each snowflake. The SMAS was deployed in 2023-2024. The dataset contains data from January 14, 2023 to March 21, 2024 as BMP images and a single CSV file.

Product Summary

Platforms
GROUND STATIONS
Projects
UCONN
Spatial Extent

N: 41.809 S: 41.807 E: -72.293 W: -72.295

Location
CONNECTICUT
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2023-01-14 to 2024-03-11
Data Partner
Global Hydrometeorology Resource Center, Marshall Space Flight Center, NASA (NASA/MSFC/GHRC)
Concept ID
C3906343000-GHRC_DAAC
Data State
COMPLETE
Number of Files/Granules
7634
Processing Level
1B
Science Keywords
RADAR IMAGERY

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

Thant, H. (2025). GPM Ground Validation Snowflake Measurement and Analysis System (SMAS) University of Connecticut (UCONN) [Dataset]. NASA Global Hydrometeorology Resource Center Distributed Active Archive Center. https://doi.org/10.5067/GPMGV/UCONN/SMAS/DATA101 Date Accessed: 2026-09-11

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Publications Citing This Dataset

Filters
Title Year Author Topic
Winter precipitation measurements in New England: results from the Filipiak, Brian C., Wolff, David B., Spaulding, Aaron, Tokay, Ali, Helms, Charles N., Loftus, Adrian M., Chibisov, Alexey V., Schirtzinger, Carl, Boulanger, Mick J., Pabla, Charanjit S., Bliven, Larry, Kim, EunYeol, Junyent, Francesc, Chandrasekar, V., Thant, Hein, Notaros, Branislav M., Britto Hupsel de Azevedo, Gustavo, Cerrai, Diego Snow Pellets, Snow Grains, Droplet Size, Hydrometeors, Particle Size Distribution, Aerosols, Aerosol Backscatter, Atmospheric River, Precipitation Rate, Precipitation Amount, Rain, SPECTRUM WIDTH, Liquid Surface Precipitation Rate, RADIAL VELOCITY, Reflectance, Liquid Water Equivalent, Doppler Velocity, Melting Layer Height, Cloud Reflectance, MEAN RADIAL VELOCITY, Wind Direction, Wind Speed, Atmospheric Water Vapor, Precipitation, RADAR IMAGERY
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