Current and Water Quality Observation System by Drift Type Buoy with DGPS
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- FUJII Hideto
- National Research Institute of Agricultural Engineering
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- KIRI Hirohide
- National Research Institute of Agricultural Engineering
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- NAKAYA Tetsuo
- National Research Institute of Agricultural Engineering
Bibliographic Information
- Other Title
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- 漂流式DGPSブイによる流況・水質観測装置の開発
- ヒョウリュウシキ DGPS ブイ ニ ヨル リュウキョウ スイシツ カンソク ソウチ ノ カイハツ
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Abstract
Drift type buoy equipped with differential GPS (DGPS) was developed as a new observation system for current and water quality in the estuary. The drift type buoy with DGPS will make the current observation such as current direction or velocity and water quality such as turbidity and salinity concentration easy and accurate. This paper reports on the characteristics of the system and its tested results observed in an estuary in the Ariake Sea. Through the observations twice, the system was shown to be useful as a current observation method in an estuary.<BR>The system has the following characteristics.<BR>(1) It is possible to grasp a current direction and velocity in outer layer by the locus of flow of the drift type buoy with DGPS.<BR>(2) The system is useful for the flow elucidation in the fields where two kinds of flows like salt water and fresh water exist.<BR>(3) The system installs two salt concentration sensors and a turbidity sensor, although it is easy to change the sensors to other sensors according to the objectives.<BR>(4) The system is expected to improve the dangerous observation work like in flood.
Journal
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- Transactions of The Japanese Society of Irrigation, Drainage and Reclamation Engineering
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Transactions of The Japanese Society of Irrigation, Drainage and Reclamation Engineering 1999 (204), 757-764, 1999
The Japanese Society of Irrigation, Drainage and Rural Engineering
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Keywords
Details 詳細情報について
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- CRID
- 1390282679519516160
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- NII Article ID
- 10016216487
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- NII Book ID
- AN00201203
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- ISSN
- 18847234
- 03872335
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- NDL BIB ID
- 4958117
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed