Imaging · collection · 2026
GSFC EPIC/MERRA2 L3 1x1deg Monthly Tropospheric Column Ozone V1 (TrCO3_Monthly_EPIC)
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/ik4g93ygw9vu
The GSFC EPIC/MERRA2 L3 1x1deg Monthly Tropospheric Column Ozone product (TrCO3_Monthly_EPIC) contains tropospheric column ozone amounts averaged by month from 2015 to present.
Description
Measurements from four UV channels of the Earth Polychromatic Imaging Camera (EPIC) on the Deep Space Climate ObserVatoRy (DSCOVR) are used to reconstruct distributions of global ozone. Tropospheric column ozone (TCO) is derived by subtracting the stratospheric column ozone (SCO) estimated from the Modern-Era Retrospective analysis for Research and Applications, Version 2 (MERRA2) ozone fields.
The data are stored in a single netCDF (classic) file. Data are averaged monthly at 1 degree x 1 degree resolution globally. The single data file size is 31.1 MB.
Links
Get the data
- Resource disc.gsfc.nasa.gov/datacollection/TrCO3_Monthly_EPIC_1.html ↗
Access the dataset landing page from the GES DISC website.
landing page · download · from NASA CMR, data nasa gov
- README Document acdisc.gesdisc.eosdis.nasa.gov/data/Tropospheric_Ozone/TrCO3_Monthly_EPIC.1/doc/README_EPIC_t… ↗
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C3944464114-GES_DISC.iso19115 ↗
download · from data nasa gov
- Access the data via HTTPS. cmr.earthdata.nasa.gov/virtual-directory/collections/C3944464114-GES_DISC ↗
download · from NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C3944464114-GES_DISC ↗
Use the Earthdata Search to find and retrieve data sets across multiple data centers.
download · from NASA CMR
- PNG docserver.gesdisc.eosdis.nasa.gov/public/project/Images/TrCO3_Monthly_EPIC_1.png ↗
download · preview image · from data nasa gov, NASA CMR
- Resource acdisc.gesdisc.eosdis.nasa.gov/data/Tropospheric_Ozone/TrCO3_Monthly_EPIC.1 ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/gsfc-epic-merra2-l3-1x1deg-monthly-tropospheric-column… ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/ik4g93ygw9vu ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CKAN API data.nasa.gov/api/3/action/package_show?id=6adcfdd1-019c-4b52-9c22-5167abe00… ↗
metadata API · from data nasa gov
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3944464114-GES_DISC.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3944464114-GES_DISC.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Atmospheric Ozone · NOT APPLICABLE · The second Modern-Era Retrospective analysis for Research and Applications · Tropospheric Ozone
- From keywords
- Astronomy & Astrophysics · Chemistry · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
- Inferred from text
- Atmospheric sciences 69% · Imaging 75%
Provenance · 2 source records, 21 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3944464114-GES_DISC | 7 d ago | JSON v1 |
| NASA Data Portal | 6adcfdd1-019c-4b52-9c22-5167abe00519 | 4 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@1.0.0 | 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:not-applicable | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/air-quality/tropospheric-ozone | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/oxygen-compounds/atmospheric-ozone | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:imaging | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[platform].gcmd_platform:merra-2 | 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 · NASA CMR | connector:nasa_cmr@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 |