Sea surface temperature observation by Global Imager (GLI)/ADEOS-II: Algorithm and accuracy of the product

Futoki Sakaida, Kohtaro Hosoda, Masao Moriyama, Hiroshi Murakami, Akira Mukaida, Hiroshi Kawamura

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


A sea surface temperature (SST) retrieval algorithm for Global Imager (GLI) aboard the ADEOS-II satellite has been developed. The algorithm is used to produce the standard SST product in the Japan Aerospace Exploration Agency (JAXA). The algorithm for cloud screening is formed by combinations of various types of tests to detect cloud-contaminated pixels. The combination is changed according to the solar zenith angle, which enables us to detect clouds even in the sun glitter region in daytime. The parameters in the cloud-detection tests have been tuned using the GLI global observations. SST is calculated by the Multi-Channel SST (MCSST) technique from the detected clear pixels. Using drifting buoy measurements, match-up data are produced to derive the coefficients of the MCSST equations and to examine their performance. The bias and RMSE of the GLI SST are 0.03 K and 0.66 K for daytime and, -0.01 K and 0.70 K for nighttime, respectively.

Original languageEnglish
Pages (from-to)311-319
Number of pages9
JournalJournal of Oceanography
Issue number3
Publication statusPublished - 2006 Jun


  • Cloud detection
  • SST

ASJC Scopus subject areas

  • Oceanography


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