Data · collection · 2011
Alkanes in Firn Air Samples, Antarctica and Greenland
Listed in NASA Earthdata CMR
This data set contains ethane, propane, and n-butane measurements in firn air from the South Pole and the West Antarctic Ice Sheet (WAIS) Divide in Antarctica, and from Summit, Greenland.
Description
The WAIS Divide and South Pole samples were collected in December to January of of 2005/06 and 2008/09, respectively. The Summit firn was sampled in the summer of 2006.
Analyses were conducted on a gas chromatography - mass spectrometry (GC-MS) system at the University of California, Irvine. Measurements and the associated uncertainties are reported as dry air molar mixing ratios in part per trillion (ppt). The reported measurements for each sampling depth represent a mean of multiple measurements on more than one flask in most cases.
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Data are available via FTP in Microsoft Excel (.xls) format.
Links
Get the data
- Data Set Web Page usap-dc.org/view/dataset/609504 ↗
download · from NASA CMR
Where it is published
- DOI doi.org/10.7265/n5x9287c ↗
DOI / persistent id · from NASA CMR
Documentation and papers
- NSF Award Abstract. nsf.gov/awardsearch/showAward.do?AwardNumber=0739598 ↗
documentation · from NASA CMR
Catalogue records · 2
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2532070980-AMD_USAPDC.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2532070980-AMD_USAPDC.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Carbon And Hydrocarbon Compounds · FIELD INVESTIGATION · Firn · Firn · GAS CHROMATOGRAPHS · LABORATORY · MASS SPECTROMETERS · Not provided · Petroleum Hydrocarbons
- Inferred from text
- Climate change science 70% · Mass spectrometry 75%
Provenance · 1 source records, 18 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2532070980-AMD_USAPDC | 13 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 (70%) |
| concepts[instrument].gcmd_instrument:gas-chromatographs | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:mass-spectrometers | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/carbon-and-hydrocarbon-compounds | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/cryosphere/glaciers-ice-sheets/firn | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/terrestrial-hydrosphere/glaciers-ice-sheets/firn | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/terrestrial-hydrosphere/water-quality-water-chemistry/contaminants/petroleum-hydrocarbons | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:mass-spectrometry | 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:laboratory | 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 |