Data · collection · 2011
Methane Isotopes in South Pole Firn Air, 2008
Listed in NASA Earthdata CMR
This data set contains depth profiles for delta carbon-13 (δ13C) and delta deuterium (δD) of methane (CH<sub>4</sub>) in South Pole firn air.
Description
The investigators obtained air samples from two boreholes during December 2008 and January 2009, and subsequently determined isotope ratios at 18 depths. The profiles represent a roughly 100-year history of the isotopic composition of CH<sub>4</sub> at South Pole Station (no depth-age model provided).
Data are available via FTP as an ASCII text file (.txt) and a Microsoft Excel file (.xlsx).
Links
Get the data
- Data Set Web Page usap-dc.org/view/dataset/609502 ↗
download · from NASA CMR
Where it is published
- DOI doi.org/10.7265/n55t3hfp ↗
DOI / persistent id · from NASA CMR
Documentation and papers
- NSF Award Abstract. nsf.gov/awardsearch/showAward.do?AwardNumber=0739491 ↗
documentation · from NASA CMR
Catalogue records · 2
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2532071016-AMD_USAPDC.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2532071016-AMD_USAPDC.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- GROUND-BASED OBSERVATIONS · Isotopes · LABORATORY · MASS SPECTROMETERS · Not provided · Snow Depth
- Inferred from text
- Text 75%
Provenance · 1 source records, 14 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2532071016-AMD_USAPDC | 14 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | 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/cryosphere/sea-ice/snow-depth | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/paleoclimate/ice-core-records/isotopes | 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:ground-based-observations | 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 |