Imaging · collection · 2025
AIRS/Aqua L1B Infrared (IR) geolocated and calibrated radiances V8.0 (AIRSAQIRL1B)
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/d82he19r6r5h
The Atmospheric Infrared Sounder (AIRS) is a grating spectrometer (R = 1200) aboard the second Earth Observing System (EOS) polar-orbiting platform, EOS Aqua.
Description
In combination with the Advanced Microwave Sounding Unit (AMSU) and the Humidity Sounder for Brazil (HSB), AIRS constitutes an innovative atmospheric sounding group of visible, infrared, and microwave sensors. The AIRS Infrared (IR) level 1B data set contains AIRS calibrated and geolocated radiances in milliWatts/m^2/cm^-1/steradian for 2378 infrared channels in the 3.74 to 15.4 micron region of the spectrum.
The AIRS Level 1B product consists of calibrated radiances, geolocation coordinates, quality control parameters, and calibration engineering support information. This product converts the AIRS raw data in digital counts to radiances referenced to SI (Système international) traceable standards established at NIST for each of the 2378 AIRS channels, and contains ancillary information pertaining to the instrument calibration and performance.
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In general, the differences between the previous version, V5, and V8 are extremely small and not significant for most applications, however the improvements may have relevance for certain climate applications. The differences also make the product more versatile and contains more information about the calibration that will be useful for future modifications. More information can be found in the AIRS Version 8 Level 1B ATBD and Test Report.
The AIRS instrument is co-aligned with AMSU-A so that successive blocks of 3 x 3 AIRS footprints are contained within one AMSU-A footprint. The AIRSAQIRL1B_8 products are stored in files (often referred to as "granules") that contain 6 minutes of data, 90 footprints across track by 135 lines along track.
Links
Get the data
- Resource disc.gsfc.nasa.gov/datacollection/AIRSAQIRL1B_8.0.html ↗
Access the dataset landing page from the GES DISC website.
landing page · download · from NASA CMR, data nasa gov
- AIRS Documentation Page docserver.gesdisc.eosdis.nasa.gov/public/project/AIRS/AIRS_Documentation.pdf ↗
documentation · download · from NASA CMR, data nasa gov
- PDF docserver.gesdisc.eosdis.nasa.gov/public/project/AIRS/AIRS_V8.0_L1B_Test_Report.pdf ↗
Test Report, summary of validation status of products
documentation · download · from NASA CMR, data nasa gov
- ATBD Documentation docserver.gesdisc.eosdis.nasa.gov/public/project/ATBD/AIRS_V8_L1B_ATBD.pdf ↗
documentation · download · from NASA CMR, data nasa gov
- README Document docserver.gesdisc.eosdis.nasa.gov/public/project/AIRS/README.AIRSAQIRL1B.v8.0.pdf ↗
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C3173400482-GES_DISC.iso19115 ↗
download · from data nasa gov
- Access the data via HTTPS. airsl1.gesdisc.eosdis.nasa.gov/data/Aqua_AIRS_Level1/AIRSAQIRL1B.8.0 ↗
download · from NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C3173400482-GES_DISC ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
- Resource airs.jpl.nasa.gov/index.html ↗
AIRS home page at NASA/JPL. General information on the AIRS instrument suite, algorithms, and other AIRS-related activities can be found.
download · project · from data nasa gov, NASA CMR
- JPEG docserver.gesdisc.eosdis.nasa.gov/public/project/Images/AIRIBRAD_005.jpeg ↗
download · preview image · from data nasa gov, NASA CMR
- Resource airsl1.gesdisc.eosdis.nasa.gov/opendap/Aqua_AIRS_Level1/AIRSAQIRL1B.8.0 ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/airs-aqua-l1b-infrared-ir-geolocated-and-calibrated-ra… ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/d82he19r6r5h ↗
DOI / persistent id · from NASA CMR
Catalogue records · 4
- Access the data via the OPeNDAP protocol. cmr.earthdata.nasa.gov/virtual-directory/collections/C3173400482-GES_DISC ↗
metadata API · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3173400482-GES_DISC.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=be091657-b13e-43fe-a3db-74996e443… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3173400482-GES_DISC.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Atmospheric Infrared Sounder · Dust/Ash/Smoke · Earth Observing System, Aqua · Infrared Radiance · Sulfur Dioxide
- From keywords
- Astronomy & Astrophysics · Chemistry · Earth & Environmental Science · Engineering · Ocean & Atmospheric Science · Physics
- Inferred from text
- Atmospheric sciences 70%
Provenance · 2 source records, 22 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3173400482-GES_DISC | 10 d ago | JSON v1 |
| NASA Data Portal | be091657-b13e-43fe-a3db-74996e44325e | 7 d ago | JSON v2 |
| 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 (70%) |
| 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:engineering | 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:airs | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/aerosols/dust-ash-smoke | 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[measured_variable].gcmd:earth-science/spectral-engineering/infrared-wavelengths/infrared-radiance | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:aqua | 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 |