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AIRS/Aqua L1B Near Real Time (NRT) Visible/Near Infrared (VIS/NIR) geolocated and calibrated radiances V005 (AIRVBRAD_NRT) at GES DISC

Published by NASA/GSFC/SED/ESD/GCDC/GESDISC | National Aeronautics and Space Administration | Catalog Last Checked: July 14, 2026 at 11:32 PM | Dataset Last Updated: March 31, 2025
The AIRS Visible/Near Infrared (VIS/NIR) Level 1B Near Real Time (NRT) product (AIRVBRAD_NRT_005) differs from the routine product (AIRVBRAD_005) 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. The consequences of these differences are described in the AIRS Near Real Time (NRT) data products document. The AIRS VIS/NIR level 1B data set contains visible and near-infrared calibrated and geolocated radiances in W/m^2/micron/steradian for 4 channels in the 0.4 to 1.0 um region of the spectrum. The spectral range of the VIS/NIR channels are as follows: Channel 1 0.41 um - 0.44 um, Channel 2 0.58 um - 0.68 um, Channel 3 0.71 um - 0.92 um, Channel 4 0.49 um - 0.94 um. The AIRVBRAD_NRT_005 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. The VIS/NIR granules are only produced in the daytime so there will always be fewer VIS/NIR granules than Infrared or microwave granules.

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
[
  "026:00"
]
contactPoint 
{
  "fn": "ED ESFANDIARI",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:asghar.e.esfandiari@nasa.gov"
}
description The AIRS Visible/Near Infrared (VIS/NIR) Level 1B Near Real Time (NRT) product (AIRVBRAD_NRT_005) differs from the routine product (AIRVBRAD_005) 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. The consequences of these differences are described in the AIRS Near Real Time (NRT) data products document. The AIRS VIS/NIR level 1B data set contains visible and near-infrared calibrated and geolocated radiances in W/m^2/micron/steradian for 4 channels in the 0.4 to 1.0 um region of the spectrum. The spectral range of the VIS/NIR channels are as follows: Channel 1 0.41 um - 0.44 um, Channel 2 0.58 um - 0.68 um, Channel 3 0.71 um - 0.92 um, Channel 4 0.49 um - 0.94 um. The AIRVBRAD_NRT_005 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. The VIS/NIR granules are only produced in the daytime so there will always be fewer VIS/NIR granules than Infrared or microwave granules.
distribution 
[
  {
    "@type": "dcat:Distribution",
    "title": "View information related to this dataset",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "AIRS Documentation Page",
    "downloadURL": "https://disc.gsfc.nasa.gov/information/documents?title=AIRS+Documentation"
  },
  {
    "@type": "dcat:Distribution",
    "title": "The dataset's project home page",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "AIRS home page at NASA/JPL. General information on the AIRS instrument, algorithms, and other AIRS-related activities can be found.",
    "downloadURL": "https://airs.jpl.nasa.gov/index.html"
  },
  {
    "@type": "dcat:Distribution",
    "title": "View information related to this dataset",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "AIRVBRAD_NRT information",
    "downloadURL": "https://disc.gsfc.nasa.gov/datacollection/AIRVBRAD_NRT_005.html"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Download this dataset through a directory map",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "Access the data via HTTPS. User registration is required. Register for a username and password at https://urs.eosdis.nasa.gov/users/new.",
    "downloadURL": "https://discnrt1.gesdisc.eosdis.nasa.gov/data/Aqua_AIRS_NRT/AIRVBRAD_NRT.005/"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Use OPeNDAP to access the dataset's data",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "Access the data via the OPeNDAP protocol.",
    "downloadURL": "https://discnrt1.gesdisc.eosdis.nasa.gov/opendap/Aqua_AIRS_NRT/AIRVBRAD_NRT.005/contents.html"
  },
  {
    "@type": "dcat:Distribution",
    "title": "This dataset's landing page",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "Access the dataset landing page from the GES DISC website.",
    "downloadURL": "https://disc.gsfc.nasa.gov/datacollection/AIRVBRAD_NRT_005.html"
  },
  {
    "@type": "dcat:Distribution",
    "title": "View documentation related to this dataset",
    "format": "PDF",
    "mediaType": "application/pdf",
    "description": "Memo on NRT vs Standard Product",
    "downloadURL": "https://docserver.gesdisc.eosdis.nasa.gov/repository/Mission/AIRS/3.3_ScienceDataProductDocumentation/3.3.5_ProductQuality/nrt_memo_v6.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "View this dataset's read me document",
    "format": "PDF",
    "mediaType": "application/pdf",
    "description": "README Document",
    "downloadURL": "https://docserver.gesdisc.eosdis.nasa.gov/repository/Mission/AIRS/3.3_ScienceDataProductDocumentation/3.3.4_ProductGenerationAlgorithms/README.AIRVBRAD.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Get a related visualization",
    "format": "JPEG",
    "mediaType": "image/jpeg",
    "description": "Sample image of AIRVBRAD",
    "downloadURL": "https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/AIRVBRAD_NRT_005.jpeg"
  },
  {
    "@type": "dcat:Distribution",
    "title": "View documentation related to this dataset",
    "format": "PDF",
    "mediaType": "application/pdf",
    "description": "Summary of validation status of products",
    "downloadURL": "https://docserver.gesdisc.eosdis.nasa.gov/repository/Mission/AIRS/3.7_ScienceDataProductValidation/V5_CalVal_Status_Summary.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Download this dataset through Earthdata Search",
    "format": "HTML",
    "mediaType": "text/html",
    "description": "Use the Earthdata Search to find and retrieve data sets across multiple data centers.",
    "downloadURL": "https://search.earthdata.nasa.gov/search?q=AIRVBRAD_NRT+005"
  },
  {
    "@type": "dcat:Distribution",
    "title": "View this dataset's algorithm theoretical basis document",
    "format": "PDF",
    "mediaType": "application/pdf",
    "downloadURL": "https://eospso.gsfc.nasa.gov/sites/default/files/atbd/AIRS_L1B_ATBD_Part_2.pdf"
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]
identifier C1233768984-GES_DISC
issued 2024-07-03
keyword 
[
  "earth-science",
  "spectral-engineering",
  "visible-wavelengths"
]
landingPage https://cmr.earthdata.nasa.gov:443/search/concepts/C1233768984-GES_DISC.html
language 
[
  "en-US"
]
modified 2025-03-31
programCode 
[
  "026:001"
]
publisher 
{
  "name": "NASA/GSFC/SED/ESD/GCDC/GESDISC",
  "@type": "org:Organization"
}
spatial -180.0 -90.0 180.0 90.0
temporal 2018-11-01T00:00:00Z/2024-08-12T00:00:00Z
theme 
[
  "Aqua",
  "LANCE",
  "geospatial"
]
title AIRS/Aqua L1B Near Real Time (NRT) Visible/Near Infrared (VIS/NIR) geolocated and calibrated radiances V005 (AIRVBRAD_NRT) at GES DISC

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