VALIDATION OF REMOTELY SENSED CHLOROPHYLL ESTIMTION MODEL IN BRACKISH LAKE TOGO-IKE

• SAKUNO Yuji

  広島大学 大学院工学研究院エネルギー・環境部門

• MAEDA Akihiro

  鳥取県衛生環境研究所水環境対策チーム

• MIYAMOTO Yasushi

  鳥取県衛生環境研究所水環境対策チーム

• MORI Akihiro

  鳥取県衛生環境研究所水環境対策チーム

• OKAMOTO Masaki

  鳥取県衛生環境研究所水環境対策チーム

• HATAKEYAMA Keisuke

  鳥取県衛生環境研究所大気・地球環境室

• KUKI Takahiro

  鳥取県水・大気環境課

Bibliographic Information

Other Title

• 汽水湖東郷池における非接触クロロフィル推定手法の検証

Abstract

 The objective of this study is to validate the method of chlorophyll-a (Chla) estimation in the brackish Lake Tougou-ike which is located in the central part of Tottori Prefecture. The 42 (4 times) in-situ spectral reflectance / Chla data set was acquired from May, 2013 to July, 2015 for the validation. As a result, a substantial margin of error at the high Chla area of more than 40 μgL^-1 was observed using "Koyama-ike model" using 2 bands of 672nm and 704nm. A new three band model based on bio-optical theory in the water was adopted and an optimal expression and suitable bands for this lake were discussed to reduce the error. Finally the Chla estimation model using 3 band model of 650nm, 703nm, and 740nm substantially improved the precision of about 8% compared with Lake Koyama-ike model.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 72 (2), I_964-I_969, 2016

  Japan Society of Civil Engineers

Keywords

• remote sensing
• drone
• reflectance
• chlorophyll-a
• 3 band model

Details

• CRID: 1390282680330205056
• NII Article ID: 130005263420
• DOI: 10.2208/jscejoe.72.i_964
• ISSN: 21854688
• Web Site: https://www.jstage.jst.go.jp/article/jscejoe/72/2/72_I_964/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed