Temporal scale of sea surface temperature fronts revealed by microwave observations

Kohtaro Hosoda, Hiroshi Kawamura, Kuo Wei Lan, Teruhisa Shimada, Futoki Sakaida

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


Sea surface temperature (SST) data for three years from the Advanced Microwave Scanning Radiometer for the Earth Observing System are used to statistically evaluate the temporal scales of the global SST fronts (SSTFs). Using the entropy-based edge detection method which is very resistant to impulsive noises, temporal autocorrelation of the dissimilarities of two SST groups across the SSTF is calculated in 10-km-gridded map. In general, the derived temporal scales, defined as e-folding scales in this study, range from 10 to 40 days. Long temporal scales of up to 100 days are found in areas where the stationary ocean currents maintain the frontal structures.

Original languageEnglish
Article number5941059
Pages (from-to)3-7
Number of pages5
JournalIEEE Geoscience and Remote Sensing Letters
Issue number1
Publication statusPublished - 2012


  • Front detection
  • microwave remote sensing
  • sea surface temperature (SST)

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Electrical and Electronic Engineering


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