Chapter
Dec 31, 2015
Behaviors of the Salt Wedge and the Salinity Distribution at Estuaries
Authors: Isao Yakuwa, Susumu Takahashi, and Morimasa OhtaniAuthor Affiliations
Publication: Coastal Engineering 1978
Abstract
The salt wedge has been observed by ultrasonic method at estuaries of the Ishikari, Shiribetsu and Rumoi River in Hokkaido, Japan. According to the records of the longitudinal profile of the salt wedge, behavior of the interface of salt and fresh water is strongly influenced by configurations of the water course and the river, bed. Therefore, in this paper, a distance from the front of the salt wedge to the river mouth is divided into two or three sections in accordance with behavior of the interface, and the salinity distribution in the upper layer is estimated in each section.
By solving the differential equation of two dimentional salinity diffusion, the distribution is represented by terms of flow velocity, diffusion coefficients, depth of the upper layer and salinity at the boundary. Where, diffusion coefficients are determined by comparing evaluated longitudinal distribution of surface salinity with observed one.
By estimating the rate of salinity entrainment into the upper layer, the entrainment coefficient E at the interface is evaluated as E = 0.4 x 10-5 ˜ 0.8 x 10-3 at three estuaries.
Get full access to this article
View all available purchase options and get full access to this chapter.
Information & Authors
Information
Published In
Coastal Engineering 1978
Pages: 2746 - 2760
Copyright
© 1978 American Society of Civil Engineers.
History
Published online: Dec 31, 2015
Permissions
Request permissions for this article.
Authors
Affiliations
Isao Yakuwa
Professor, Department of Engineering Science, Hokkaido University, Sapporo, Japan.
Susumu Takahashi
Associate Professor, Department of Engineering Science, Hokkaido University.
Morimasa Ohtani
Research Assistant, Department of Engineering Science, Hokkaido University.
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.
View Options
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.