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A Study on the Decision for External Water Level of a River Considering Sea Level Rise
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 Title & Authors
A Study on the Decision for External Water Level of a River Considering Sea Level Rise
Choo, Tai Ho; Yun, Gwan Seon; Kwon, Yong Been; Ahn, Si Hyung; Kim, Jong Gu;
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 Abstract
The sea level of the Earth is rising approximately 2.0mm per year (global average value) due to thermal expansion of sea water, melting of glaciers and other causes by global warming. However, when it comes to design a river, the standard of design water level is decided by analyzing four largeness tide value and harmonic constant with observed tidal water level. Therefore, it seems the external water level needs to consider an increasing speed of the seawater level which corresponds to a design frequency. In the present study, the hourly observed tidal water level targeting 47 tidal stations operated by Korea Hydrographic and Oceanographic Administration (KHOA) from beginning of observation to 2015 per hour has been collected. The variation of monthly and yearly and increasing ratio have been performed divided 4 seas such as the Southern, East, Western, and Jeju Sea. Also, the external water level existing design for rivers nearby a coast was been reviewed. The current study could be used to figure out the cause of local seawater rise and reflect the external water level as basic data.
 Keywords
Design Flood Level;External Water Level;Tidal Level;Global Warming;Sea Level Rise;
 Language
Korean
 Cited by
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