Data · collection · 2025
AIRS/Aqua L1B Near Real Time (NRT) Infrared (IR) geolocated and calibrated radiances V8.0 (AIRSAQIRL1B_NRT)
Listed in NASA Earthdata CMR
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 Near Real Time (NRT) product (AIRSIRAQL1B_NRT_v8.0) differs from the routine product (AIRSAQIRL1B_8) in 2 ways to meet the three hour latency requirements of the Land Atmosphere NRT Capability Earth Observing System (LANCE): (1) The NRT granules are produced without previous or subsequent granules if those granules are not available within 5 minutes, (2) the predictive ephemeris/attitude data are used rather than the definitive ephemeris/attitude.
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The consequences of these differences are described in the AIRS Near Real Time (NRT) data products document. The 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
- Access the data via HTTPS. discnrt1.gesdisc.eosdis.nasa.gov/data/Aqua_AIRS_NRT/AIRSAQIRL1B_NRT.8.0 ↗
download · from NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C3173404183-GES_DISC ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
Where it is published
- disc.gsfc.nasa.gov /datacollection/AIRSAQIRL1B_NRT_8.0.html ↗
Access the dataset landing page from the GES DISC website.
landing page · from NASA CMR
Documentation and papers
- README Document docserver.gesdisc.eosdis.nasa.gov/public/project/AIRS/README.AIRSAQIRL1B.v8.0.pdf ↗
documentation · from NASA CMR
- AIRS Documentation Page docserver.gesdisc.eosdis.nasa.gov/public/project/AIRS/AIRS_Documentation.pdf ↗
documentation · from NASA CMR
- docserver.gesdisc.eosdis.nasa.gov /public/project/AIRS/AIRS_V8.0_L1B_Test_Report.pdf ↗
Test Report, summary of validation status of products
documentation · from NASA CMR
- ATBD Documentation docserver.gesdisc.eosdis.nasa.gov/public/project/ATBD/AIRS_V8_L1B_ATBD.pdf ↗
documentation · from NASA CMR
- Memo on NRT vs Standard Product docserver.gesdisc.eosdis.nasa.gov/repository/Mission/AIRS/3.3_ScienceDataProductDocumentation/3.… ↗
documentation · from NASA CMR
- 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.
project · from NASA CMR
- Sample image of AIRSAQIRL1B_NRT docserver.gesdisc.eosdis.nasa.gov/public/project/Images/AIRIBRAD_005.jpeg ↗
preview image · from NASA CMR
Catalogue records · 2
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3173404183-GES_DISC.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3173404183-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
Provenance · 1 source records, 15 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3173404183-GES_DISC | 14 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@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 |