fnctId=thesis,fnctNo=348
[2022] Environmental variables affecting Sargassum distribution in the East China Sea and the Yellow Sea
- 작성자
- 김지수
- 저자
- 신지선, 김소현, 김부근, 조영헌
- 발행사항
- Volume 9 - 2022
- 발행일
- 2022-12
- 저널명
- Frontiers in Marine Science
- 국문초록
- 영문초록
- Shin, J., Choi, J. G., Kim, S. H., Khim, B. K., & Jo, Y. H.
Floating Sargassum horneri has ?owed into Jeju Island and the coast of the Korean Peninsula every year between February and May since 2015, causing considerable damage to aqua-farming sites and navigation. This study aimed to address the relationship between Sargassum distribution in the Yellow Sea (YS) and the East China Sea (ECS) and environmental variables for determining Sargassum distribution toward the Korean Peninsula. From feature importance ranking, we found that sea surface temperature (SST) is the most in?uential environmental variable in Sargassum distribution. From variables such as sea surface height (SSH), eastward seawater velocity (uo), and northward seawater velocity (vo), it was observed that Sargassum patches were not distributed in the southeast below 29 °N. Subsequently, we employed bagged tress models to evaluate the speci?c sensitivity of each environmental variable to Sargassum distribution. This model showed the best quantitative and qualitative performance when trained with physical and geographical variables. When estimating expanded areas of Sargassum distribution over time with the change in SST, a sider distribution range of Sargassum patches than usual and an early in?ow into the Korean Peninsula were observed when the SST increased from the original. In addition, we found that the tolerable and favorable SST for Sargassum was 12?20 and 18°C, respectively. These results will enhance the understanding of the relationship between environmental variables and Sargassum distribution and provide valuable data for establishing a pre- disaster system for Sargassum blooms ?owing toward the Korean Peninsula.
- 일반텍스트
- (RCMS) 해양위성영상을 이용한 해수면 염분, 해류, 어장지수 산출 연구
- 첨부파일