AIRS/Aqua L1B Near Real Time (NRT) Visible/Near Infrared (VIS/NIR) quality assurance subset V005 (AIRVBQAP_NRT) at GES DISC

Description

The AIRS Level 1B Near Real Time (NRT) product (AIRVBQAP_NRT_005) differs from the routine product (AIRVBQAP_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 Atmospheric Infrared Sounder (AIRS) Visible/Near Infrared (VIS/NIR) instrument in combination with the AIRS Infrared Spectrometer, the Advanced Microwave Sounding Unit (AMSU) and the Humidity Sounder for Brazil (HSB) constitute an innovative atmospheric sounding group aboard the Earth Observing System (EOS) Aqua platform in a near-polar Sun-synchronous orbit with a 1:30 AM/PM equator crossing time and an ~705 km altitude. The AIRS Visible/Near Infrared (VIS/NIR) Level 1B QA Subset contains Quality Assurance (QA) parameters that a may use of filter AIRS VIS/NIR Level 1B radiance data to create a subset of analysis. It includes "state" that user should check before using any VIS/NIR Level 1B data radiance and "glintlat", "glintlon", and "sun_glint_distant" that users can use to check for possibility of solar glint contamination. AIRS VIS/NIR Level 1B radiance data can be found in AIRVBRAD.

Resources

Name Format Description Link
16 AIRVBQAP_NRT_005.gif https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/AIRVBQAP_NRT_005.gif
21 Access the data via the OPeNDAP protocol. https://discnrt1.gesdisc.eosdis.nasa.gov/opendap/Aqua_AIRS_NRT/AIRVBQAP_NRT.005/contents.html
21 Use the Earthdata Search to find and retrieve data sets across multiple data centers. https://search.earthdata.nasa.gov/search?q=AIRVBQAP_NRT+005
21 AIRS Documentation Page https://disc.gsfc.nasa.gov/information/documents?title=AIRS+Documentation
21 AIRS AIRVBQAP_NRT information page https://disc.gsfc.nasa.gov/datacollection/AIRVBQAP_NRT_005.html
21 AIRS home page at NASA/JPL. General information on the AIRS instrument, algorithms, and other AIRS related activities can be found. https://airs.jpl.nasa.gov/index.html
33 Memo on NRT vs Standard Product https://docserver.gesdisc.eosdis.nasa.gov/repository/Mission/AIRS/3.3_ScienceDataProductDocumentation/3.3.5_ProductQuality/nrt_memo_v6.pdf
21 Access the data via HTTPS. User registration is required. Register for a username and password at https://urs.eosdis.nasa.gov/users/new https://discnrt1.gesdisc.eosdis.nasa.gov/data/Aqua_AIRS_NRT/AIRVBQAP_NRT.005/
33 README Document https://docserver.gesdisc.eosdis.nasa.gov/repository/Mission/AIRS/3.3_ScienceDataProductDocumentation/3.3.4_ProductGenerationAlgorithms/README.AIRVBRAD.pdf
33 AIRS_L1B_ATBD_Part_2.pdf https://eospso.gsfc.nasa.gov/sites/default/files/atbd/AIRS_L1B_ATBD_Part_2.pdf
33 Summary of validation status of products https://docserver.gesdisc.eosdis.nasa.gov/repository/Mission/AIRS/3.7_ScienceDataProductValidation/V5_CalVal_Status_Summary.pdf

Tags

  • infrared-wavelengths
  • visible-wavelengths
  • spectral-engineering
  • earth-science

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