Imaging · collection · 2018
ACT-America: L2 In Situ CO2, CO, and CH4 Concentrations from Towers, Eastern USA
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.3334/ornldaac/1568
This dataset provides atmospheric carbon dioxide (CO2), carbon monoxide (CO), and methane (CH4) concentrations as measured on a network of instrumented communications towers operated by the Atmospheric Carbon and Transport-America (ACT-America) project.
Description
ACT-America's mission spans five years and includes five 6-week intensive field campaigns covering all 4 seasons and 3 regions of the central and eastern United States.
Tower-based measurements began in early 2015 and are continuously collecting CO2, CO, and CH4 data to characterize ground-level (>100 m) carbon background conditions to support the periodic airborne measurement campaigns and transport modeling conducted by ACT-America. The towers are instrumented with infrared cavity ring-down spectrometer systems (CRDS; Picarro Inc.). Data are reported for the highest sampling port on each tower.
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The averaging interval standard deviation and uncertainty derived from periodic flask sample to in-situ measurement comparisons are provided. Complete tower location, elevation, instrument height, and date/time information are also provided.
Links
Get the data
- Data set Landing Page DOI URL doi.org/10.3334/ornldaac/1568 ↗
landing page · download · DOI / persistent id · from NASA CMR, data nasa gov
- OpenDAP URL opendap.earthdata.nasa.gov ↗
metadata API · download · from NASA CMR, data nasa gov
- ORNL DAAC Data Set Documentation data.ornldaac.earthdata.nasa.gov/public/actamerica/ACTAMERICA-PICARRO_Ground/comp/ACTAMERICA-PI… ↗
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C2706398349-ORNL_CLOUD.iso19115 ↗
download · from data nasa gov
- Collection Bundle URL data.ornldaac.earthdata.nasa.gov/protected/bundle/ACTAMERICA-PICARRO_Ground_1568.zip ↗
download · from NASA CMR
- PNG daac.ornl.gov/ACTAMERICA/guides/ACTAMERICA-PICARRO_Ground_Fig1.png ↗
download · preview image · from data nasa gov, NASA CMR
- Resource actamerica.ornl.gov ↗
download · project · from data nasa gov, NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C2706398349-ORNL_CLOUD ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/act-america-l2-in-situ-co2-co-and-ch4-concentrations-f… ↗
landing page · from data nasa gov
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2706398349-ORNL_CLOUD.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=1e40d491-9c61-4829-bc00-aaa466876… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2706398349-ORNL_CLOUD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Atmospheric Carbon Dioxide · Atmospheric Carbon Monoxide · FIXED OBSERVATION STATIONS · Methane · SPECTROMETERS · Water Vapor Mixing Ratio Profiles
- From keywords
- Astronomy & Astrophysics · Chemistry · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
- Inferred from text
- Climate change science 69%
Provenance · 2 source records, 22 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2706398349-ORNL_CLOUD | 14 d ago | JSON v1 |
| NASA Data Portal | 1e40d491-9c61-4829-bc00-aaa466876210 | 11 d ago | JSON v2 |
| 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@1.0.0 | title+keywords+description (69%) |
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:chemistry | 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:spectrometers | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/carbon-and-hydrocarbon-compounds/atmospheric-carbon-dioxide | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/carbon-and-hydrocarbon-compounds/atmospheric-carbon-monoxide | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/carbon-and-hydrocarbon-compounds/methane | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-water-vapor/water-vapor-profiles/water-vapor-mixing-ratio-profiles | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:fixed-observation-stations | 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 |