阿賀野川の塩水溯上

Laguna : 汽水域研究 Volume 13 Page 43-62 published_at 2006-06
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d0070013005.pdf 2.43 MB エンバーゴ : 2006-12-04
Title
阿賀野川の塩水溯上
Title
Saline water intrusion into the Aganogawa River
Title Transcription
アガノガワ ノ エンスイ ソジョウ
Creator
Tateishi Masaaki
Honda Yu
Tokuoka Takao
Fukita Ayumi
Matsuda Shigeo
Anma Kei
Nishimura Kiyokazu
Source Title
Laguna : 汽水域研究
Volume 13
Start Page 43
End Page 62
Journal Identifire
ISSN 21852995
Descriptions
Salt water intrusion into the Aganogawa River was measured on November 19 and 20, 2004, and October 16 and 17, 2005 at spring tide, using mainly a SC-3 acoustic profiling system and water quality meter called TPM CLOROTEC. Velocity, direction and depth were also measured at two stations in the latter observation. SC-3 acoustic profiling system is an improved 200 kHz precision echosounder, that records the distribution of the halocline and the thickness of the saltwater layer as profile records. TPM CLOROTEC is a towing-type water quality meter, and real time data of depth, temperature, salinity, turbidity and chlorophyll-a can be obtained on the ship. These two instruments are very useful to recognize time-space ditiribution and changes of the halocline. At the Aganogawa River saline intrusion has been known to reach up to 14 km from the river mouth, and has been wrongly interpreted to the cause of the Niigata Minamata Disease. Our observation has successfully visualized the bebavior of salt water intrusion into the Aganogawa River
Subjects
Aganogawa River ( Other)
saline wedge ( Other)
echo-sounding survey ( Other)
Niigata Minamata Disease ( Other)
Language
jpn
Resource Type departmental bulletin paper
Publisher
島根大学汽水域研究センター
Date of Issued 2006-06
Publish Type Version of Record
Access Rights open access
Relation
[NCID] AN10439529