Fig. 6
From: Use of GOCI-II images for detection of harmful algal blooms in the East China Sea
a Distribution of bloom detection area using the SS (510) method during the landfall period of Typhoon Yanhua using GOCI-II data from July 21 to July 31, 2021. Red indicates the bloom area extracted by SS (510) and grey indicates the non-bloom area. b Discrimination of algal species using the BI method before and after Typhoon Yanhua landed by GOCI-II data on July 21 and July 31, 2021, respectively. Yellow indicates dinoflagellate bloom waters and blue indicates diatom bloom waters. The yellow star represents the landfall of Typhoon Yanhua in Zhoushan, Zhejiang Province, on July 25, 2021. Region A represents the trajectory of Typhoon Yanhua landing in the ECS area from July 24 to July 27, 2021