Table · collection · 2026
Snowflake Measurement and Analysis System (SMAS) UCONN
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/gpmgv/uconn/smas/data101
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.
Description
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.
Links
Get the data
- PDF ghrc.earthdata.nasa.gov/browseui ↗
The guide document contains detailed information about the dataset
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C3906343000-GHRC_DAAC.iso19115 ↗
download · from data nasa gov
- search.earthdata.nasa.gov /search/granules?p=C3906343000-GHRC_DAAC ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/snowflake-measurement-and-analysis-system-smas-uconn ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/gpmgv/uconn/smas/data101 ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3906343000-GHRC_DAAC.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=99eb2f8c-85c2-4d81-8cee-c9b6f269e… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3906343000-GHRC_DAAC.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- GROUND STATIONS · Radar Imagery
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Engineering · Ocean & Atmospheric Science · Physics
- Inferred from text
- Geomatic engineering 72% · Image 65%
Provenance · 2 source records, 19 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3906343000-GHRC_DAAC | 9 d ago | JSON v1 |
| NASA Data Portal | 99eb2f8c-85c2-4d81-8cee-c9b6f269e309 | 6 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:4013 | enrichment · NASA CMR | taxonomy-embedding@1.0.0 | title+keywords+description (72%) |
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:engineering | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:physics | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/spectral-engineering/radar/radar-imagery | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:image | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (65%) |
| concepts[platform].gcmd_platform:ground-stations | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| updated_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |