number of downloads : ?
Title Transcription
MODIS による シンジコ ナカウミ ノ ダクド ブンプ スイテイ
Title Alternative (English)
Estimation of Turbidity in Lakes Shinji and Nakaumi from MODIS
File
language
jpn
Author
Yamamoto, Shuichiro
Kozu, Toshiaki
Nonohara, Shingo
Sakuno, Yuji
Description
MODIS is a medium-resolution satellite imaging sensor that has a observation interval of once or twice a day, although the spatial resolution is marginal(250 m). Because of the high observation frequency, it should be suitable for operational monitoring of water quality of Lakes Shinji and Nakaumi. A preliminary study was undertaken to test the utility of MODIS channels 1 and 2(red and near-IR bands)for turbidity mapping. Two test data sets, May 2 2002 and August 23 2003, are used for this study. Data from a high spatial resolution satellite sensor ASTER are also used for comparison. For May 2 2002, turbidity is thought to be dominated by inorganic materials and MODIS Band 1(red)appears to produce a reasonable turbidity map. On the other hand, on August 23 2003, both organic and inorganic materials contributed to total turbidity. This caused signifi cant differences in turbidity maps created from MODIS Band 1, MODIS Band 2, and ASTER Band 1(green). Therefore we suggest that combined use of MODIS Bands 1 and 2 may produce more reliable turbidity estimates. Further information may be available from MODIS Band 4(green)although this channel has a coarser resolution of 500 m.
Subject
MODIS
ASTER
coastal lagoon
turbidity
Journal Title
Laguna : 汽水域研究
Volume
14
Start Page
57
End Page
68
ISSN
21852995
Published Date
2007-12
NCID
AN10439529
Publisher
島根大学汽水域研究センター
NII Type
Departmental Bulletin Paper
Format
PDF
Text Version
出版社版
OAI-PMH Set
Estuary Research Center
このエントリーをはてなブックマークに追加