AIRS/Aqua L1B Near Real Time (NRT) Infrared (IR) geolocated and calibrated radiances V8.0 (AIRSAQIRL1B_NRT) at GES DISC

Description

The Atmospheric Infrared Sounder (AIRS) is a grating spectrometer (R = 1200) aboard the second Earth Observing System (EOS) polar-orbiting platform, EOS Aqua. 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. 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.

Resources

Name Format Description Link
22 Sample image of AIRSAQIRL1B_NRT https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/AIRIBRAD_005.jpeg
33 README Document https://docserver.gesdisc.eosdis.nasa.gov/public/project/AIRS/README.AIRSAQIRL1B.v8.0.pdf
33 Test Report, summary of validation status of products https://docserver.gesdisc.eosdis.nasa.gov/public/project/AIRS/AIRS_V8.0_L1B_Test_Report.pdf
21 AIRS Documentation Page https://disc.gsfc.nasa.gov/information/documents?title=AIRS+Documentation
21 Access the dataset landing page from the GES DISC website. https://disc.gsfc.nasa.gov/datacollection/AIRSAQIRL1B_NRT_8.0.html
21 Access the data via HTTPS. https://discnrt1.gesdisc.eosdis.nasa.gov/data/Aqua_AIRS_NRT/AIRSAQIRL1B_NRT.8.0/
21 Access the data via the OPeNDAP protocol. https://discnrt1.gesdisc.eosdis.nasa.gov/opendap/Aqua_AIRS_NRT/AIRSAQIRL1B_NRT.8.0/
21 Use the Earthdata Search to find and retrieve data sets across multiple data centers. https://search.earthdata.nasa.gov/search?q=AIRSAQIRL1B_NRT+8.0
21 AIRS home page at NASA/JPL. General information on the AIRS instrument suite, algorithms, and other AIRS-related activities can be found. https://airs.jpl.nasa.gov/index.html
33 ATBD Documentation https://docserver.gesdisc.eosdis.nasa.gov/public/project/ATBD/AIRS_V8_L1B_ATBD.pdf
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

Tags

  • infrared-wavelengths
  • aerosols
  • atmosphere
  • atmospheric-chemistry
  • spectral-engineering
  • earth-science

Topics

Categories