Bài báo này tập trung phân tích dữ liệu nhiệt độ nước biển tầng mặt (SST) được giải đoán từ ảnh viễn thám với phổ kế có độ phân giải trung bình (MODIS) chụp từ vệ tinh AQUA của Cục quản trị Hàng không và Vũ trụ Hoa Kỳ (US NASA), với chuỗi dữ liệu SST trung bình tháng liên tục trong 16 năm (7/2002–12/2017), các kết quả phân tích đã cho thấy mỗi khi hiện tượng ENSO xảy ra đều tác động rất rõ nét đến SST tại các vùng biển ven bờ Việt Nam. Mời các bạn tham khảo! | Vietnam Journal of Marine Science and Technology Vol. 20 No. 1 2020 1 11 DOI https 1859-3097 20 1 15038 http jmst Sea surface temperature anomaly in the coastal waters of Vietnam related to ENSO phenomenon Vu Van Tac Nguyen Huu Huan Tong Phuoc Hoang Son Ngo Manh Tien Nguyen Hoang Thai Khang Phan Quang Tran Van Chung Institute of Oceanography VAST Vietnam E-mail quiet_seavn@ Received 19 March 2019 Accepted 30 September 2019 2020 Vietnam Academy of Science and Technology VAST Abstract The studies on the impact of the ENSO phenomenon on climate and environment change have shown that the Bien Dong Southeast Asia Sea is strongly influenced by this phenomenon. This paper focuses on analyzing sea surface temperature SST monthly data for 16 years 7 2002 12 2017 in the coastal waters of Vietnam from MODIS satellite images of National Aeronautics and Space Administration US NASA . The analysis results showed a clear pattern of ENSO impacts on SST in the coastal waters of Vietnam. However the intensity of the ENSO phenomenon affecting the three studied areas is very different and in terms of trend the intensity gradually increases to the north. The period of impact of ENSO on SST in the coastal waters of Vietnam is often about one month later than the ONI index and the influenced duration lasts about 6 to 9 months. In addition in the La Niña years the values of the SST anomaly reflect quite well in terms of the intensity of the La Niña phenomenon. However in the El Niño years the SST anomaly index is not generally proportional to the ONI index. Specifically in the years when El Niño phenomenon was considered to be weak the SST anomaly index of the coastal waters of Vietnam is much higher than in the years when El Niño phenomenon was considered to be moderate or very strong. The above results are contributing to improving the understanding of the impact of the vagaries of the climate on the coastal waters of Vietnam supporting
