Imaging · collection · 2025
OMI/Aura Sulphur Dioxide (SO2) Total Column 1-orbit L2 Swath 13x24 km V004 (OMSO2)
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/aura/omi/data2422
The OMI/Aura Sulphur Dioxide (SO2) Total Column 1-orbit L2 Swath 13x24 km (OMSO2) data product has been updated with a principal component analysis (PCA)-based algorithm (v2) with new SO2 Jacobian lookup tables and a priori profiles that significantly improve retrievals for anthropogenic SO2.
Description
The data files (or granules) contain different estimates of the vertical column density (VCD) of SO2 depending on the users investigating anthropogenic or volcanic sources.
Files also contain quality flags, geolocation and other ancillary information. The lead scientist for the OMSO2 product is Can Li. The OMSO2 files are stored in the version 5 EOS Hierarchical Data Format (HDF-EOS5).
Read the rest (1 more)
Each file contains data from the daylit half of an orbit (~53 minutes). There are approximately 14 orbits per day. The resolution of the data is 13x24 km2 at nadir, with a swath width of 2600 km and 60 pixels per scan line every 2 seconds.
Links
Get the data
- Resource disc.gsfc.nasa.gov/datacollection/OMSO2_004.html ↗
Access the dataset landing page from the GES DISC website.
landing page · download · from NASA CMR, data nasa gov
- README Document aura.gesdisc.eosdis.nasa.gov/data/Aura_OMI_Level2/OMSO2.004/doc/README.OMSO2_004.pdf ↗
documentation · download · from NASA CMR, data nasa gov
- List of SO2 Publications so2.gsfc.nasa.gov/pubs.html ↗
documentation · download · from NASA CMR, data nasa gov
- File Specification Document docserver.gesdisc.eosdis.nasa.gov/public/project/OMI/OMSO2_2025-03-05.fs ↗
documentation · download · from NASA CMR, data nasa gov
- Resource aura.gsfc.nasa.gov ↗
download · project · from data nasa gov, NASA CMR
- Resource aura.gesdisc.eosdis.nasa.gov/data/Aura_OMI_Level2/OMSO2.004 ↗
download · from data nasa gov
- Access the data via HTTPS. cmr.earthdata.nasa.gov/virtual-directory/collections/C3454342607-GES_DISC ↗
download · from NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C3454342607-GES_DISC ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C3454342607-GES_DISC.iso19115 ↗
download · from data nasa gov
- Resource so2.gsfc.nasa.gov ↗
download · project · from data nasa gov, NASA CMR
- Resource knmiprojects.nl/projects/ozone-monitoring-instrument ↗
download · project · from data nasa gov, NASA CMR
- Resource aura.gesdisc.eosdis.nasa.gov/opendap/Aura_OMI_Level2/OMSO2.004/contents.html ↗
download · from data nasa gov
- PNG docserver.gesdisc.eosdis.nasa.gov/public/project/Images/OMSO2_004.png ↗
download · preview image · from data nasa gov, NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/omi-aura-sulphur-dioxide-so2-total-column-1-orbit-l2-s… ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/aura/omi/data2422 ↗
DOI / persistent id · from NASA CMR
Catalogue records · 4
- Access the data via the OPeNDAP protocol. cmr.earthdata.nasa.gov/virtual-directory/collections/C4181289230-OMINRT ↗
metadata API · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3454342607-GES_DISC.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=9e5ffacb-824c-4bb1-9749-b77e12e62… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3454342607-GES_DISC.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Earth Observing System, Aura · Ozone Monitoring Instrument · Sulfur Dioxide
- From keywords
- Astronomy & Astrophysics · Chemistry · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
Provenance · 2 source records, 18 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3454342607-GES_DISC | 13 d ago | JSON v1 |
| NASA Data Portal | 9e5ffacb-824c-4bb1-9749-b77e12e621a5 | 11 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| 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:omi | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/sulfur-compounds/sulfur-dioxide | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:aura | 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 |