Text · collection · 2011
Modeled Radar Attenuation Rate Profile at the Vostok 5G Ice Core Site, Antarctica
Listed in NASA Earthdata CMR
This data set provides a modeled radar attenuation rate profile, showing the predicted contributions from pure ice and impurities to radar attenuation at the Vostok 5G ice core site in Antarctica, as well as the total attenuation rate and its formal uncertainty.
Description
The model data are based on borehole temperature logs, concentrations of major soluble ions measured from melted ice core samples, and information about the electrical conductivity of ice.
Attenuation rates and their spatial variability are important constraints for radar studies of ice sheets. Parameters include depth, total attenuation rate, and attenuation rate contribution from pure ice, acidity, and salinity. Data are available via FTP as a text file (.txt) with columns in comma separated value format.
Links
Get the data
- Data Set Web Page usap-dc.org/view/dataset/609501 ↗
download · from NASA CMR
Where it is published
- DOI doi.org/10.7265/n59k485d ↗
DOI / persistent id · from NASA CMR
Documentation and papers
- NSF Award Abstract. nsf.gov/awardsearch/showAward.do?AwardNumber=0538674 ↗
documentation · from NASA CMR
Catalogue records · 2
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2532071027-AMD_USAPDC.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2532071027-AMD_USAPDC.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- FIELD INVESTIGATION · FIELD SURVEYS · Ice Sheets · ION CHROMATOGRAPHS · MODELS · Not provided · Snow · THERMOMETERS
- Inferred from text
- Text 75%
Provenance · 1 source records, 16 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2532071027-AMD_USAPDC | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:ion-chromatographs | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:thermometers | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/precipitation/solid-precipitation/snow | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/terrestrial-hydrosphere/glaciers-ice-sheets/ice-sheets | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:text | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[platform].gcmd_platform:field-investigation | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:field-surveys | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:models | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:not-provided | 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 |