Estimation on Average Residence Time of Particulate Matters in Geoje Bay using Particle Tracking Model

입자추적모델을 이용한 거제만의 입자물질 평균체류시간 산정

Kim, Jin-Ho;Hong, Sok-Jin;Lee, Won-Chan;Kim, Jeong-Bae;Kim, Hyung-Chul;Kim, Dong-Myung

  • Received : 2015.10.14
  • Accepted : 2016.02.25
  • Published : 2016.02.28


The residence time measures the time spent by a water parcel or a pollutant in a given water body. So residence time of water is widely used as an indicator of how a substance will remain in an estuary and it is used to enable comparisons among different water bodies. To estimate residence time of particulate matters from land and aquaculture, EFDC that includes particle tracking model was applied to the Geoje Bay. Modelled average residence time was about 65 days in the inner part. It meant it takes about 2 months for substance from land and aquaculture to be transported to the outside of Geoje Bay. The results indicated that residence time varied spatially throughout Geoje Bay depending on tidal flushing and, in general conditions, tidal flushing exerts the greatest influence to the flushing of Geoje Bay. This reveals relationships between residence times of particulate matters and physical properties of the bay and Geoje Bay is vulnerable to water quality problem.


Residence time;Geoje Bay;EFDC;Particle tracking model;Particulate matters


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Grant : 연안어장 생태계 통합평가 및 관리연구

Supported by : 국립수산과학원