SPOT/HRVデータによるアオコ発生時の宍道湖表層クロロフィルa濃度分布の推定 Estimation of Surface Chlorophyll-a Concentration in Lake Shinji Using SPOT/HRV Data under Water-bloom "Aoko" Condition.

この論文にアクセスする

この論文をさがす

著者

抄録

The objective of this study was to map the horizontal distribution of water-bloom, or "Aoko", in Lake Shinji, Shimane Prefecture, using SPOT HRV and concurrent field survey data. Surface chlorophyll-a concentration (C) was adopted as a measure of Aoko amount in lake surface water. Two kinds of empirical algorithms, single band regression and band ratio regression algorithms, were used to estimate C from SPOT HRV and in-situ C data acquired in the morning of October 9, 1997. The C distribution patterns derived from satellite data were compared with aerial photographs taken 1.5 hour prior to satellite overpass. Also, various options to determine path radiance values using "Dark pixel" method were examined. The following results were obtained : 1) Surface suspended solid concentration (SSC) affected the accuracy of the estimated C when single band algorithms were applied, 2) The ratio algorithm using HRV band 1 and 2, after path radiance removal, could reduce the influence of SSC and improved the accuracy of C estimation considerably, and 3) Aoko was found along the north shore of the lake with 4-8 km length, and it covered about 7% of the lake surface.

収録刊行物

  • 日本リモートセンシング学会誌 = Journal of the Remote Sensing Society of Japan

    日本リモートセンシング学会誌 = Journal of the Remote Sensing Society of Japan 19(2), 132-148, 1999-06-30

    The Remote Sensing Society of Japan

参考文献:  26件中 1-26件 を表示

被引用文献:  2件中 1-2件 を表示

各種コード

  • NII論文ID(NAID)
    10003791177
  • NII書誌ID(NCID)
    AN10035665
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    02897911
  • NDL 記事登録ID
    4807075
  • NDL 雑誌分類
    ZM15(科学技術--科学技術一般--測定・測定器)
  • NDL 請求記号
    Z14-1022
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
ページトップへ