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1997 Fiscal Year Final Research Report Summary

CORAL REEF MAPPING WITH REMOTE SENSING DATA

Research Project

Project/Area Number 08680618
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 環境保全
Research InstitutionKOKUSHIKAN UNIVERSITY

Principal Investigator

HASEGAWA Hitoshi  Associate Professor, Department of Geography, Kokushikan University, 文学部・地理学専攻, 助教授 (80208496)

Project Period (FY) 1996 – 1997
KeywordsCORAL REEF / REMOTE SENSING / SPECTRAL REFLECTANCE
Research Abstract

The spectral reflectance was measured 23 kinds of object by dividing the wave length of 400nm-1050nm into 17 steps. These data were measured in the south eastern coast of the Ishigaki-Island, Okinawa Pref.using a portable spectro reflectometer. These objects were beach and lagoon sediments and terrigenous sediments, live and dead coral such as Acropora sp.and Poritessp., green algae, red algae and brown algae. The object measured both on the shore and the underwater from the sea surface. The outline of the result about measurement of spectral reflectance is as follows : Measures on shore live coral and dead coral can be distinguished, and green algae, red algae and brown algae can be mutually distinguished. However, it is difficult to distinguish both of them in case of being under water.
However it is difficult to distinguish these in case of being under water. Because spectral reflectance is higher than algae and seagrasses, live and dead coral can be distinguished from there in water. And moreover, various sediments for instance, coral sand and terrigenous sediments can be distinguished by using spectral reflectance in water.

  • Research Products

    (4 results)

All Other

All Publications (4 results)

  • [Publications] 長谷川 均: "リモートセンシングによるサンゴ礁地域のモニタリング" 日本サンゴ礁学会誌演要旨集. 1. 57 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 長谷川 均: "サンゴ礁環境衛星地図の作成(1)" 日本地理学会発表要旨集. 53. 400-401 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] HITOSHI HASEGAWA: "REMOTE SENSING OF CORAL REEF WITH REFERENCE TO ENVIRONMENTAL AND MULTITEMPORAL MONITORING." NIHON SANGOSYOU GAKKAI KOUEN YOUSISYU. NO.157. (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] HITOSHI HASEGAWA: "CORAL REEF MAPPING WITH REMOTE SENSING DATA" NIHON CHIRI GAKKAI HAPPYOU YOUSISYU. NO.53. 400-401 (1998)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-16  

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