Validation of atmospheric profile retrievals from the SNPP NOAA-unique combined atmospheric processing system. Part 2: Ozone

Nicholas R. Nalli, Antonia Gambacorta, Quanhua Liu, Changyi Tan, Flavio Iturbide-Sanchez, Christopher D. Barnet, Everette Joseph, Vernon R. Morris, Mayra Oyola, Jonathan W. Smith

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


This paper continues an overview of the validation of operational profile retrievals from the Suomi National Polar- Orbiting Partnership (SNPP), with focus here given to the infrared (IR) ozone profile environmental data record (EDR) product. The SNPP IR ozone profile EDR is retrieved using the cross-track IR sounder (CrIS), a Fourier transform spectrometer that measures high-resolution IR earth radiance spectra containing atmospheric state information, namely, vertical profiles of temperature, moisture, and trace gas constituents. The SNPP CrIS serves as the U.S. low earth orbit (LEO) satellite IR sounding system and will be featured on future Joint Polar Satellite System (JPSS) LEO satellites. The operational sounding algorithm is the National Oceanic and Atmospheric Administration-Unique Combined Atmospheric Processing System (NUCAPS), a legacy sounder science team algorithm that retrieves atmospheric profile EDR products, including ozone and carbon trace gases, with optimal vertical resolution under nonprecipitating (clear to partly cloudy) conditions. The NUCAPS ozone profile product is assessed in this paper using extensive global in situ truth data sets, namely, ozonesonde observations launched from ground-based networks and from ocean-based intensive field campaigns, along with numerical weather predic-tion model output. Based upon rigorous statistical analyses using these data sets, the NUCAPS ozone profile EDRs are determined to meet the JPSS Level 1 global performance requirements.

Original languageEnglish (US)
Pages (from-to)598-607
Number of pages10
JournalIEEE Transactions on Geoscience and Remote Sensing
Issue number1
StatePublished - Jan 2018
Externally publishedYes


  • Algorithms
  • Atmospheric measurements
  • Geophysical measurements
  • Infrared (IR) measurements
  • Measurement errors
  • Ozone
  • Radiosondes
  • Remote sensing
  • Satellite applications

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Earth and Planetary Sciences(all)


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