남해와 동중국해에서 위성으로 추정된 표층수온 및 클로로필의 장기 변화
- 남해와 동중국해에서 위성으로 추정된 표층수온 및 클로로필의 장기 변화
- Climatological Variability of Satellite-derived Sea Surface Temperature and Chlorophyll in the South Sea of Korea and East China Sea
- 손영백; 유주형; 노재훈; 주세종; 김상현
- KIOST Author(s)
- Son, Young Baek(손영백); Ryu, Joo Hyung(유주형); Noh, Jae Hoon(노재훈)
- The purpose of this study is to investigate climatological variations from the sea surface temperature (SST), chlorophyll-a concentration (Chl-a), and phytoplankton size class (PSC), using NOAA AVHRR, SeaWiFS, and MODIS data in the South Sea of Korea (SSK) and East China Sea (ECS). 26-year monthly SST and 13-year monthly Chl-a and PSC data, separated by whole and nine-different areas, were used to understand seasonal and inter-annual variations. SST and Chl-a clearly showed seasonal variations: higher SST and Chl-a were observed during the summer and spring, and lower values occurred during the winter and summer. The annual and monthly SST over 26 years increased by 0.2~1.0oC. The annual and monthly Chl-a concentration over 13 years decreased by 0.2~1.1 mg/m3. To determine more detailed spatial and temporal variations, we used the combined data with monthly SST, Chl-a, and PSC. Between 1998 and 2010, the inter-annual trend of Chl-a decreased, with decreasing micro- and nano-size plankton, and increasing pico-size plankton. In regional analysis, the west region of the study area was spatially and temporally correlated with the area dominated by decreasing micro-size plankton; while the east region was less sensitive to coastal and land effects, and was dominated by increasing pico-size plankton. This phenomenon is better related to one or more forcing factors: the increased stratification of ocean driven by changes occurring in spatial variations of the SST caused limited contributions of nutrients and changed marine ecosystems in the study area.
- Ocean and Polar Research, v.34, no.2, pp.201 - 218, 2012
- climatological variation; SST; chlorophyll-a; phytoplankton size class; East China Sea
- Related Researcher
Coastal Remote Sensing,RS based Marine Surveillance System,GOCI Series Operation,연안 원격탐사,원격탐사기반 해양감시,천리안해양관측위성 운영
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