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http://dx.doi.org/10.7837/kosomes.2018.24.2.188

A Study on the Distribution of Summer Water Temperature in Wando Using Time-Series Analysis and Numerical Experiments  

Jang, Chan-Il (Interdisciplinary Program of Ocean Industrial Engineering, Pukyong National University)
Jeong, Da-Woon (Interdisciplinary Program of Ocean Industrial Engineering, Pukyong National University)
Kim, Dong-Sun (Department of Ecological Engineering, Pukyong National University)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.24, no.2, 2018 , pp. 188-195 More about this Journal
Abstract
Time series analysis was conducted to identify the factors affecting short-term variation of water temperature in Wando. Spectrum analysis showed that air temperature peaks at diurnal period, while water temperature and tide level peak at both semi-diurnal and diurnal periods. Coherence between water temperature and the tide level presented 0.92 at semi-diurnal period. Numerical experiment were carried out to understand the spatio-temporal distribution of water temperature in the study area. Average water temperature difference between maximum ebb and flood was $0.3^{\circ}C$ in spring tide, but $0.13^{\circ}C$ in neap tide. The reason for the large difference in spring tide is that relatively cold water entered with strong tidal currents at flood tide and flowed out at ebb tide. Water temperature on coasts was higher than out at sea. This is because the depth in the coast is shallower than at sea, and water temperature increases rapidly due to solar radiation.
Keywords
Water Temperature; Tide; Power Spectrum; Coherence; Numerical Experiment;
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Times Cited By KSCI : 1  (Citation Analysis)
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