Imaging · collection · 2026
OMI/Aura Formaldehyde (HCHO) Total Column Daily L3 Weighted Mean Global 0.1deg Lat/Lon Grid V004 (OMHCHOd)
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/aura/omi/data3410
The OMI/Aura Formaldehyde (HCHO) Total Column Daily L3 Weighted Mean Global 0.1deg Lat/Lon Grid (OMHCHOd).
Description
The formaldehyde values in each file are the average for 0.1 x 0.1 degree grid cell of cloud-screened total HCHO columns for a single day. Other variables included in the files are the weight of each grid cell, the standard error of column averages, mean albedo, mean cloud fraction, mean cloud pressure, and surface height.
The weight information is useful for combining data from several files and reducing the noise of the retrievals by co-adding in the temporal or spatial dimensions. The OMHCHOd files are in the netCDF4 format which is compatible with most HDF5 readers and tools. Each file contains daily data from approximately 15 orbits.
Read the rest (1 more)
The maximum file size for the OMHCHOd data product is about 80 Mbytes.
Links
Get the data
- Resource disc.gsfc.nasa.gov/datacollection/OMHCHOd_004.html ↗
Access the dataset landing page from the GES DISC website.
landing page · download · from NASA CMR, data nasa gov
- Access the data via the OPeNDAP protocol. cmr.earthdata.nasa.gov/virtual-directory/collections/C4119459768-GES_DISC ↗
metadata API · download · from NASA CMR
- List of publications. projects.knmi.nl/omi/research/documents ↗
documentation · download · from NASA CMR, data nasa gov
- Algorithm Theoretical Basis Documents docserver.gesdisc.eosdis.nasa.gov/repository/Mission/OMI/3.3_ScienceDataProductDocumentation/3.3… ↗
documentation · download · from NASA CMR, data nasa gov
- README Document acdisc.gesdisc.eosdis.nasa.gov/data/Aura_OMI_Level3/OMHCHOd.004/doc/README_OMHCHOd_v004.pdf ↗
documentation · download · from NASA CMR, data nasa gov
- OMI Data User's Guide docserver.gesdisc.eosdis.nasa.gov/repository/Mission/OMI/3.3_ScienceDataProductDocumentation/3.3… ↗
documentation · download · from NASA CMR, data nasa gov
- Resource cfa.harvard.edu/atmosphere ↗
Harvard-Smithsonian Center for Astrophysics: Atmospheric MEasurements website
documentation · download · from NASA CMR, data nasa gov
- General Documentation cfa.harvard.edu/atmosphere/Instruments/OMI/PGEReleases/index.html ↗
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C4119459768-GES_DISC.iso19115 ↗
download · from data nasa gov
- search.earthdata.nasa.gov /search/granules?p=C4119459768-GES_DISC ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
- Resource aura.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
- PNG docserver.gesdisc.eosdis.nasa.gov/public/project/Images/OMHCHOd_004.png ↗
download · preview image · from data nasa gov, NASA CMR
- Resource acdisc.gesdisc.eosdis.nasa.gov/data/Aura_OMI_Level3/OMHCHOd.004 ↗
download · from data nasa gov
- Resource giovanni.gsfc.nasa.gov/giovanni ↗
The GES-DISC Interactive Online Visualization ANd aNalysis Interface (Giovanni) is a web-based tool that allows users to interactively visualize and analyze data.
download · preview image · from data nasa gov, NASA CMR
- Resource acdisc.gesdisc.eosdis.nasa.gov/opendap/HDF-EOS5/Aura_OMI_Level3/OMHCHOd.004/contents.html ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/omi-aura-formaldehyde-hcho-total-column-daily-l3-weigh… ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/aura/omi/data3410 ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C4119459768-GES_DISC.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=518e2249-7725-41e8-aa83-5a223aa6e… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C4119459768-GES_DISC.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Earth Observing System, Aura · Formaldehyde · Ozone Monitoring Instrument
- 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 | C4119459768-GES_DISC | 8 d ago | JSON v1 |
| NASA Data Portal | 518e2249-7725-41e8-aa83-5a223aa6e890 | 5 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/carbon-and-hydrocarbon-compounds/formaldehyde | 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 |