AIRS Level-1C and applications to cross-calibration with MODIS and CrIS

Evan M. Manning, Hartmut H. Aumann, Ali Behrangi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Scopus citations


We introduce and illustrate applications of the AIRS Level-1C (L1C) data product. While each spectrum in the Level- 1B (L1B) calibrated radiances is represented by 2378 channels, each spectrum in the L1C product is represented by 2645 channels, with monotonically increasing frequency. Typically 2000 of the 2378 L1B channels are copied unchanged into the 2645 channel array used in L1C. The dead or noisy channels in the L1B and new channels in the spectral gaps of L1B are filled using a Principal Component technique. We illustrate two applications of AIRS L1C: 1) to integrate over the band of broadband instruments such as MODIS and 2) resampling to emulate other hyperspectral instruments such as CrIS. The L1C data product will greatly facilitate the use of AIRS data for cross-calibration with other instruments.

Original languageEnglish (US)
Title of host publicationEarth Observing Systems XIX
EditorsXiaoxiong Xiong, Xingfa Gu, James J. Butler
ISBN (Electronic)9781628412451
StatePublished - 2014
Externally publishedYes
EventEarth Observing Systems XIX - San Diego, United States
Duration: Aug 18 2014Aug 20 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


OtherEarth Observing Systems XIX
Country/TerritoryUnited States
CitySan Diego


  • AIRS
  • Calibration
  • Climate quality
  • Climate trends
  • Principal component reconstruction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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