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Keywords:

  • remote sensing;
  • ALOS AVNIR-2;
  • fuzzy c-means;
  • water conditions;
  • iron hydroxide

Abstract

This letter reports the development of a technique to understand the water conditions appearing in the Advanced Land Observing Satellite Advanced Visible and Near Infrared Radiometer type-2 (ALOS AVNIR-2) data using fuzzy c-means. Also, waters of Lake Hosenko, into which the Tamagawa hot spring flows, were analyzed because the lake contains amorphous iron hydroxide. On the basis of the experimental results for the months of September and May data obtained by the proposed method, it is found that seasonal differences in the water surface conditions of the lake are caused by the changes in the amount of water as well as the water temperature. © 2011 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.