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Temporal variation of chlorophyll a concentration in the coastal waters affected by the Hebei Spirit oil spill in the West Sea of Korea |
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| Authors: | Chung Il Lee Hyung Chul Kim |
| Institution: | a Faculty of Marine Bioscience and Technology, Kangnung National University, Gangneung 210-702, Republic of Korea b Department of Marine Environment Engineering, Gyeongsang National University, Tongyeong 650-160, Republic of Korea c West Sea Fisheries Research Institute, National Fisheries Research and Development Institute, Incheon 400-420, Republic of Korea |
| Abstract: | Time series changes in chlorophyll a concentration before and after the Hebei Spirit oil spill that occurred in December 2007 were analyzed using NCEP wind and SeaWiFS/MODIS ocean color data. Prevailing southwesterly winds and northeast/southwestward tidal currents pushed the oil towards Korea’s West Sea coast of Taean. After the oil spill, daily chlorophyll a concentration decreased about 45-50% compared to the normal condition before the oil spill, and this decrease continued for about two weeks. Monthly mean chlorophyll a concentration in December 2007 was lower compared to the average value for the same month between 1998 and 2007, but, in October and November 2007 before the spill and in January-February 2008 after the spill, the concentration value was higher than average for the same period between 1998 and 2007. |
| Keywords: | Hebei spirit Oil spill West sea of Korea Chlorophyll a Ocean color Satellite |
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