Table · collection · 2026
SnowEx23 MAR23 IOP Computed Tomography Snow Microstructure V001
Listed in NASA Earthdata CMR
This data set characterizes snow microstructure for 11 snow pits from the SnowEx 2023 NASA field campaign Intensive Observation Period (March 2023) using microcomputed tomography (micro-CT).
Description
Included with this data set are two- and three-dimensional microstructural analysis of snow samples, black and white binary images of each sub-sample scan, and raw instrument data. Containers of snow were collected at 6 snow pits in approximately 17 cm intervals.
There were approximately 5-8 discrete containers per pit and each container had an ~1-2 cm overlap with the sample below. A 6-cm section of snow was dissected from each container of snow, which were analyzed in ~2 cm sub-sections. Each sub-section was scanned in three intervals using a micro-CT instrument.
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The three interval scans comprise multiple slices and were combined into the reconstructed final scan used for calculating the snow microstructural data.
Links
Get the data
- nsidc.org /data/data-access-tool/SNEX23_MAR23_CTSM/versions/1 ↗
Search data by spatial and/or temporal ranges or file name. Choose from various download options, including a Python script.
download · from NASA CMR
- cmr.earthdata.nasa.gov /virtual-directory/collections/C3929306547-NSIDC_CPRD ↗
Quickly download a few files using a web browser, or access data through a command-line utility such as WGET.
download · from NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C3929306547-NSIDC_CPRD ↗
Search and order NASA Earth Science data using spatial and temporal filters. Reformatting, reprojecting, and subsetting options are available for some data sets.
download · from NASA CMR
- earthaccess.readthedocs.io /en/stable ↗
A Python library to search and access NASA Earth science data with just a few lines of code
download · from NASA CMR
Where it is published
- DOI doi.org/10.5067/895kw18ck8xh ↗
Provides access to data, documentation, tools, citation information, support, and other resources.
landing page · documentation · DOI / persistent id · from NASA CMR
Documentation and papers
- nsidc.org /sites/default/files/documents/technical-reference/snex23_mar23… ↗
SnowEx23 Mar23 IOP Computed Tomography Snow Microstructure, Version 1 Technical Reference
documentation · from NASA CMR
Catalogue records · 2
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3929306547-NSIDC_CPRD.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3929306547-NSIDC_CPRD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- GROUND-BASED OBSERVATIONS · MICROTOMOGRAPHY · Snow Microstructure
- Inferred from text
- Climate change science 71% · Computed tomography 75% · Image 65%
Provenance · 1 source records, 14 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3929306547-NSIDC_CPRD | 7 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3702 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (71%) |
| concepts[instrument].gcmd_instrument:microtomography | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/cryosphere/snow-ice/snow-microstructure | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:ct | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[modality].local:modality:image | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (65%) |
| concepts[platform].gcmd_platform:ground-based-observations | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| publication_date | source · NASA CMR | connector:nasa_cmr@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 |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |