MODIS画像に基づく若狭湾の赤潮発生条件  [in Japanese] Condition of red tide appearance in Wakasa bay based on MODIS images  [in Japanese]

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Author(s)

Abstract

Since June, 2004, studies on triggering factors of the red tide have been carried out in Awara Space Radio Observatory (ASRO), Fukui University of Technology utilizing directly received data of MODIS on the Terra and Aqua satellites which have been acquired in ASRO. Preliminary results of the data analyses for the period from July, 2001 to September, 2006 indicate conditions, for the appearance of the red tide bloom in Wakasa bay as follows : (1) the threshold amount of chlorophyll-a is close to 1.5mg/m^3, (2) the range of sea surface temperature (SST) is limited in a range from 12 to 20℃ and (3) the period of sunlit time in spring is also a significantly sensitive factor. We also propose here to utilize MODIS band1 images corresponding to a red band with spatial resolution of 250m together with NDVI (Normalized Difference Vegetation Index) images which has also spatial resolution of 250m, for the confirmation of the red tide.

Journal

  • Memoirs of the Fukui University of Technology

    Memoirs of the Fukui University of Technology (37), 343-350, 2007

    Fukui University of Technology

Codes

  • NII Article ID (NAID)
    110006459272
  • Text Lang
    JPN
  • Article Type
    departmental bulletin paper
  • Journal Type
    大学紀要
  • ISSN
    02868571
  • NDL Article ID
    8875900
  • NDL Source Classification
    ZM2(科学技術--科学技術一般--大学・研究所・学会紀要)
  • NDL Call No.
    Z14-929
  • Data Source
    NDL  NII-ELS  IR 
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