Journal
INDIAN JOURNAL OF GEO-MARINE SCIENCES
Volume 50, Issue 8, Pages 613-619Publisher
NATL INST SCIENCE COMMUNICATION-NISCAIR
Keywords
GOCI; Landsat-8; MAB; Multispectral; NDVI; Yellow Sea
Categories
Funding
- Korea Coast Guard
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This study aims to detect macroalgal bloom in the Yellow Sea by comparing NDVI performance between GOCI and Landsat-8 sensors. The largest MAB in 2018 was identified along the coast of Sheyang and Qingdao of China. In consecutive years, MABs occurred in nearby areas during the initial phase and reached the shoreline of Qingdao.
There are many complains against macroalgal bloom (MAB) from all over the world for its high negative economic impacts. Early and precise detection of MAB occurance can reduce huge economic loss in tourism and marine business. Thus, this study aims to detect the MAB in the Yellow Sea (YS) by comparing performance of Normalized Difference Vegetation Index (NDVI) between Geostationary Ocean Color Imager (GOCI) and Landsat-8 sensors from 2014 to 2019. The largest MAB during this period was identified from Landsat-8 sensors along the coast of Sheyang and Qingdao of China in 2018. The locations of MABs were almost nearby areas during the begining phase of MABs in consecutive years. In successive years huge and dense MABs reached the brink of shoreline of Qingdao. In Landsat-8 images in most cases larger total areas of MABs were detected including very small pathches which could not be detected from GOCI due to low spatial resolution. The findings of this study will be helpful for scientists to choose between GOCI and Landsat-8 based on the objectives of their study.
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