Imaging · collection · 2026
OMPS-N20 L2 NM Ozone (O3) Total Column swath orbital
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/t4bryy6l5hfd
The OMPS-N20 L2 NM Ozone (O3) Total Column swath orbital product provides total ozone measurements from the Ozone Mapping and Profiling Suite (OMPS) Nadir-Mapper (NM) instrument on the NOAA-20 (JPSS-1) satellite.
Description
The total column ozone amount is derived from normalized radiances using 2 wavelength pairs 317.5 and 331.2 nm under most conditions, and 331.2 and 360 nm for high ozone and high solar zenith angle conditions.
Additionally, this data product contains measurements of UV aerosol index and reflectivity at 331 nm. Each granule contains data from the daylight portion of each orbit measured for a full day. Spatial coverage is global (-90 to 90 degrees latitude), and there are about 14.5 orbits per day, each has typically about 1200 swaths.
Read the rest (1 more)
The swath width of the NM is about 2800 km with 140 scenes, or pixels, with a footprint size of 13 km × 17 km at nadir. The files are written using the Hierarchical Data Format Version 5 or HDF5.
Links
Get the data
- Resource disc.gsfc.nasa.gov/datacollection/OMPS_N20_NMTO3_L2_2.html ↗
Access the dataset landing page from the GES DISC website.
landing page · download · from NASA CMR, data nasa gov
- README Document omps.gesdisc.eosdis.nasa.gov/data/NOAA20_OMPS_Level2/OMPS_N20_NMTO3_L2.2/doc/README.OMPS_N2… ↗
documentation · download · from NASA CMR, data nasa gov
- Resource nesdis.noaa.gov/our-satellites/currently-flying/joint-polar-satellite-system ↗
Joint Polar Satellite System (JPSS) mission home page
download · project · from data nasa gov, NASA CMR
- Access the data via HTTPS. omps.gesdisc.eosdis.nasa.gov/data/NOAA20_OMPS_Level2/OMPS_N20_NMTO3_L2.2 ↗
download · from NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C4254365808-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/C4254365808-GES_DISC.iso19115 ↗
download · from data nasa gov
- PNG docserver.gesdisc.eosdis.nasa.gov/public/project/Images/OMPS_N20_NMTO3_L2_2.png ↗
download · preview image · from data nasa gov, NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/omps-n20-l2-nm-ozone-o3-total-column-swath-orbital ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/t4bryy6l5hfd ↗
DOI / persistent id · from NASA CMR
Catalogue records · 4
- CKAN API data.nasa.gov/api/3/action/package_show?id=d1e70b50-d940-402f-8764-850534d67… ↗
metadata API · from data nasa gov
- Access the data via the OPeNDAP protocol. cmr.earthdata.nasa.gov/virtual-directory/collections/C4254365808-GES_DISC ↗
metadata API · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C4254365808-GES_DISC.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C4254365808-GES_DISC.html ↗
catalogue entry · from NASA CMR
Topics
Provenance · 2 source records, 18 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C4254365808-GES_DISC | 7 d ago | JSON v1 |
| NASA Data Portal | d1e70b50-d940-402f-8764-850534d67d1c | 4 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:omps | 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[platform].gcmd_platform:noaa-20 | 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 |