Data · collection
Annual measurements of atmospheric carbon monoxide concentrations and isotopic ratios from Arrival Heights, Ross Island since June 1991
Listed in NASA Earthdata CMR
Carbon monoxide (CO) is a trace gas in the atmosphere.
Description
Although it occurs naturally in the atmosphere at very low concentrations, it may contribute to the greenhouse effect and concentrations are increasing due to anthropogenic activity. The use of the radioactive isotope 14C in carbon monoxide is useful for determining the oxidative capacity of the atmosphere via oxidation by hydroxyl (OH).
Large whole air samples (1000-1400L) are collected from a compressor system at Arrival Heights annually (since 1991) and samples are analysed for CO concentrations and isotopic ratios of 14C and 13C to assess the characteristics and fluxes of sources and sinks of CO. CO is extracted as CO2 by selective combustion techniques and the 13C/12C and 18O/16O isotopic ratios are determined. Sample collection is aimed at the clean sector of the sky from the West through North to East, throughout the year.
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Measurements of CO carbon isotopes and its concentration in the atmosphere in Antarctica will help to determine the geographic variation, transport and the type and distribution of the sources of CO from the northern hemisphere.
Links
Get the data
- gaw.kishou.go.jp /wdcgg ↗
The data is publically available at the Global Atmospheric Watch, World Data Centre for Greenhouse Gases (WDCGG)
download · from NASA CMR
- niwa.co.nz /our-science/atmosphere/baring/info ↗
NIWA's atmospheric homepage with links to ftp data and publications
download · from NASA CMR
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214593448-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214593448-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Air Quality · Carbon Monoxide · Not provided · Trace Gases/Trace Species
- Inferred from text
- Atmospheric sciences 71%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214593448-SCIOPS | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3701 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (71%) |
| concepts[measured_variable].gcmd:earth-science/atmosphere/air-quality | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/carbon-and-hydrocarbon-compounds/carbon-monoxide | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/trace-gases-trace-species | 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 |
| 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 |