Imaging · collection · 2020
OMG Glacial Elevations from GLISTIN-A Ver. 1
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/omgev-glna1
This dataset contains 50m horizontal resolution gridded digital elevation models (DEMs) of Greenland Ice Sheet outlet glaciers collected during the NASA Oceans Melting Greenland mission.
Description
Between 2016 and 2019 the GLacier and Land Ice Surface Topography Interferometer airborne (GLISTIN-A) radar measured surface elevations around the periphery of the Greenland Ice Sheet using Ka-Band (8.4 mm wavelength) single-pass interferometry.
Level 2 (L2) GLISTIN-A elevation data, available on the JPL UAVSAR website (uavsar.jpl.nasa.gov), were collected each year in 81 swaths of varying lengths and 10-12km widths and then mapped to 3m horizontal grids. This Level 3 (L3) dataset was created to facilitate analysis of the year-to-year glacier surface elevation changes. Improvements over the L2 dataset include: a consistent swath numbering scheme (1 to 81) corresponding to repeated flight lines; common regular equal-area grids for each swath; filtering and flagging of outliers; an ancillary geoid layer; and UTM map projections corresponding to swath location.
Read the rest (1 more)
The interested user may generate their own L3 DEMs at different horizontal resolutions and projections using the Python 3 resample_GLISTIN_DEMs package available which will be available from github.com/NASA/resample_GLISTIN_DEMs
Links
Get the data
- Resource opendap.earthdata.nasa.gov ↗
This dataset can be accessed with the Open-source Project for a Network Data Access Protocol (OPeNDAP) API framework. This service enables variable and dimensional subsetting. The URL redirects to a p
metadata API · download · from NASA CMR, data nasa gov
- Data Use and Citation Guidelines podaac.jpl.nasa.gov/CitingPODAAC ↗
documentation · download · from NASA CMR, data nasa gov
- OMG GLISTIN-A Users Guide archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/omg/open/L3/elevation/GLISTINA/docs/om… ↗
documentation · download · from NASA CMR, data nasa gov
- PO.DAAC OMG Mission Page podaac.jpl.nasa.gov/OMG ↗
documentation · download · from NASA CMR, data nasa gov
- OMG Mission Page omg.jpl.nasa.gov ↗
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C2491772159-POCLOUD.iso19115 ↗
download · from data nasa gov
- cmr.earthdata.nasa.gov /virtual-directory/collections/C2491772159-POCLOUD ↗
Browse and download granules over HTTPS using the virtual directories
download · from NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C2491772159-POCLOUD ↗
Browse granule search results in Earthdata Search
download · from NASA CMR
- github.com /podaac/data-subscriber ↗
This dataset can be downloaded using the podaac-data-subscriber (the recommended tool for bulk downloading PO.DAAC data). It is a Python package for downloading one or many files using the command lin
download · from NASA CMR
- JPEG podaac.jpl.nasa.gov/Podaac/thumbnails/OMG_L3_ICE_ELEV_GLISTINA.jpg ↗
download · preview image · from data nasa gov, NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/omg-glacial-elevations-from-glistin-a-ver-1-1bb21 ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/omgev-glna1 ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2491772159-POCLOUD.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=b81b32b2-e84f-4e15-aa0d-1a4f4aeff… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2491772159-POCLOUD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Glacier and Land Ice Surface Topography Interferometer · Glacier Elevation/Ice Sheet Elevation · Gulfstream III
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
- Inferred from text
- Physical geography and environmental geoscience 70%
Provenance · 2 source records, 18 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2491772159-POCLOUD | 15 d ago | JSON v1 |
| NASA Data Portal | b81b32b2-e84f-4e15-aa0d-1a4f4aeff011 | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3709 | enrichment · NASA CMR | taxonomy-embedding@1.0.0 | title+keywords+description (70%) |
| 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: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[instrument].gcmd_instrument:glistin-a | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/cryosphere/glaciers-ice-sheets/glacier-elevation-ice-sheet-elevation | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:g-iii | 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 |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| 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 |
| updated_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |