Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China.
University of Chinese Academy of Sciences, Beijing, 100049, China.
Environ Sci Pollut Res Int. 2020 Oct;27(28):35137-35147. doi: 10.1007/s11356-020-09730-z. Epub 2020 Jun 25.
The green tide in the Yellow Sea is the world's largest macroalgal bloom. The maximum area affected by green tide can reach tens of thousands of square kilometers. Previous studies have shown that green tide drifts northward during the outbreak, yet the location of its northernmost drift and the characteristics of interannual variations have not been explored in detail. In this paper, we use the Moderate Resolution Imaging Spectrometer (MODIS) data, GaoFen-1 (GF-1) satellite data, unmanned aerial vehicle (UAV) aerial data, and field trips for extraction and monitoring of green tide and then analyze the emergence, development, and dissipation of the green tide in Rongcheng coastal waters and the change of the northernmost drift position and its related factors from the year of 2013 to 2018. The results show that green tide have drifted to the Rongcheng coastal area over the years and the northernmost drift position can reach 37.662° N in 2014. Interannual difference of the northernmost position of the drift of the green tide is obvious, it is mainly affected by the wind, and there is no certain connection with the maximum coverage area, the coverage area when reaching the northernmost position, and the existence days of the green tide. These results can help to understand the drift range and dissipation process of green tide in the Yellow Sea.
黄海绿潮是世界上最大的大型海藻藻华。绿潮爆发时受影响的最大面积可达数万平方千米。以往的研究表明，绿潮在爆发期间向北漂移，但尚未详细探讨其最北漂移的位置和年际变化特征。本研究利用 MODIS 数据、高分一号（GF-1）卫星数据、无人机（UAV）航拍数据和实地考察对绿潮进行提取和监测，分析了 2013 年至 2018 年荣成沿海绿潮的发生、发展和消散过程，以及最北漂移位置的变化及其相关因素。结果表明，多年来绿潮一直漂移到荣成沿海地区，最北漂移位置在 2014 年可达 37.662°N。绿潮最北漂移位置的年际差异明显，主要受风向影响，与最大覆盖面积、到达最北位置时的覆盖面积和绿潮存在天数没有一定的联系。这些结果有助于了解黄海绿潮的漂移范围和消散过程。
