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A Study on Estimation of Design Tidal level Considering Sea Level Change in the Korean Peninsula
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 Title & Authors
A Study on Estimation of Design Tidal level Considering Sea Level Change in the Korean Peninsula
Choo, Tai Ho; Sim, Su Yong; Yang, Da Un; Park, Sang Jin; Kwak, Kil Sin;
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 Abstract
The air temperatures of the coast and inland are rising due to an increase in carbon dioxide emissions and abnormal climate phenomena caused by global warming, El Nino, La Nina and so on. The sea levels of the Earth are rising by approximately 2.0 mm per year (global average value) due to the thermal expansion of sea water, melting of glaciers and other causes by global warming. On the other hand, when it comes to designing a hydraulic structure or coastal hydraulic structure, the standard of the design water level is decided by analyzing four largeness tide values and a harmonic constant with the observed tidal water level or simulating numerical model. Therefore, the design tidal water level needs to consider an increasing speed of the seawater level, which corresponds to the design frequency. In the present study, the observed tidal water levels targeting 46 tidal stations operated by the Korea Hydrographic and Oceanographic Administration (KHOA) from the beginning of observations to 2015 per hour were collected. The variation of the monthly and yearly and increasing ratio were performed and divided into 7 seas, such as east and west part of the Southern Sea, south part and middle of the East Sea, south part and middle of the Western Sea, and Jeju Sea. The current study could be used to determine the cause of local seawater rises and reflect the design tidal water level as basic data.
 Keywords
Change of tidal water level;Climate change;Design water level;Global warming;Sea level rise;
 Language
Korean
 Cited by
 References
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