Tracing floating green algae blooms in the Yellow Sea and the East China Sea using GOCI satellite data and Lagrangian transport simulations SCIE SCOPUS

Cited 62 time in WEB OF SCIENCE Cited 64 time in Scopus
Title
Tracing floating green algae blooms in the Yellow Sea and the East China Sea using GOCI satellite data and Lagrangian transport simulations
Author(s)
Son, Young Baek; Choi, Byoung-Ju; Kim, Yong Hoon; Park, Young-Gyu
KIOST Author(s)
Son, Young Baek(손영백)Park, Young Gyu(박영규)
Publication Year
2015-01
Abstract
In an image from the Geostationary Ocean Color Imager (GOCI) taken on 13 June 2011, a recurrent floating green algae bloom was detected around Qingdao. To detect the bloom an index based on multi-spectral band ratios using three wavelengths (555, 660, 745 nm) was utilized. One month later, the GOCI images detected widespread floating green algae patches (east west elongated) across the Yellow Sea and East China Sea (YS, ECS). The presence of the patches was confirmed from various oceanic observation cruises. Lagrangian particle tracking experiments were conducted to understand the pathway of the floating green algae patches and interpret the physical forcing factors that affect the distribution and advection of the floating green algae. The numerical simulation results indicated that dominant southerly winds during June and July 2011 were related to offshore movement of the floating green algae, especially their eastward extension in the YS/ECS. An infrequent and unusual event occurred in June 2011: a typhoon MEARI, caused the green algae to detach from the coast and initiated movement to the east. After the typhoon event, sea surface temperature recovered rapidly enough to grow the floating green algae, and wind and local current controlled the movement of the massive floating algae patches (coastal accumulation or offshore advection in the YS/ECS). Analysis of the floating green algae pixels' movement during passage of Typhoon MAON in July 2011 revealed that the floating green algae patches were significantly controlled by both ocean currents and enhanced winds. These findings suggest that the floating green algae bloom off Qingdao and in the middle of the YS and ECS in the summer of 2011 occurred due to the combined effects of recent rapid expansion of seaweed aquaculture, strong winds, and the wind patterns in blooming regions. Our combined approach, using satellite data and numerical simulations, provides a robust estimate for tracing and monitoring changes in green algae blooms on a regional scale. (C) 2014 Elsevier Inc. All rights reserved.
ISSN
0034-4257
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2564
DOI
10.1016/j.rse.2014.09.024
Bibliographic Citation
REMOTE SENSING OF ENVIRONMENT, v.156, pp.21 - 33, 2015
Publisher
ELSEVIER SCIENCE INC
Subject
GULF-OF-MEXICO; OCEAN; IMAGER; SEAWIFS; SUMMER; SYSTEM; MODEL; PARAMETERIZATION; SURFACE
Keywords
GOCI; IGAG; Floating green algae; Lagrangian particle trajectory; Ulva prolifera; Yellow Sea; East China Sea
Type
Article
Language
English
Document Type
Article
Publisher
ELSEVIER SCIENCE INC
Related Researcher
Research Interests

ocean circulation,ocean mixing,marine debris,해양순환,해양혼합,해양부유물

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse