A5078553691- Marine and coastal ecosystems
- Oceanographic and Atmospheric Processes
- Coral and Marine Ecosystems Studies
- Isotope Analysis in Ecology
- Coastal wetland ecosystem dynamics
- Coastal and Marine Dynamics
- Marine and Coastal Research
- Remote Sensing and Land Use
- Marine and fisheries research
- Atmospheric and Environmental Gas Dynamics
- Landslides and related hazards
- Marine and coastal plant biology
- Marine Biology and Ecology Research
- Remote Sensing and LiDAR Applications
- Species Distribution and Climate Change
- Water Quality Monitoring and Analysis
- Atmospheric Ozone and Climate
- Marine animal studies overview
- Water Quality Monitoring Technologies
- Environmental Changes in China
- Soil and Land Suitability Analysis
- Rock Mechanics and Modeling
- Ocean Waves and Remote Sensing
- Algal biology and biofuel production
- Remote-Sensing Image Classification
Korea Institute of Ocean Science and Technology
2016-2025
Korea University of Science and Technology
2022-2025
Gyeongsang National University
2017
Plymouth Marine Laboratory
2016
Yonsei University
2005-2011
Spectrally-resolved water-leaving radiances (ocean colour) and inferred chlorophyll concentration are key to studying phytoplankton dynamics at seasonal inter-annual scales, for a better understanding of the role in marine biogeochemistry; global carbon cycle; response ecosystems climate variability, change feedback processes. Ocean colour data also have critical operational observation systems monitoring coastal eutrophication, harmful algal blooms, sediment plumes. The contiguous...
Since coastal waters are one of the most vulnerable marine systems to environmental pollution, it is very important operationally monitor water quality. This study attempts estimate two major quality indicators, chlorophyll-a (chl-a) and suspended particulate matter (SPM) concentrations, in environments on west coast South Korea using Geostationary Ocean Color Imager (GOCI) satellite data. Three machine learning approaches including random forest, Cubist, support vector regression (SVR) were...
Since the Geostationary Ocean Color Imager (GOCI) was successfully launched in 2010, GOCI Yonsei aerosol retrieval (YAER) algorithm has been continuously updated to retrieve hourly optical properties. GOCI-II 4 more channels including UV, finer spatial resolution (250 m), and daily full disk coverage as compared GOCI, February 2020, onboard GEO-KOMPSAT-2B (GK-2B) satellite. In this study, we extended YAER data based on its improved performance many aspects present first results of properties...
The Changjiang River loads freshwater into the East China Sea (ECS) and Yellow (YS). A low-salinity plume known as Diluted Water (CDW) is formed by mixing with saline ambient waters; it disperses toward Jeju Island East/Japan due to dominant southerly wind tide during summer. To map offshore surface CDW in ECS, a proxy was developed using water beam attenuation ( c ) salinity from 18 annual summer cruises matched synchronous Geostationary Ocean Color Imager (GOCI) satellite data. We followed...
Coral reefs play a significant role in marine ecosystems, but are increasingly facing degradation, primarily due to ocean warming. Effective monitoring and management methods crucial for the conservation rehabilitation of these accurate mapping is essential conserving coral reef ecosystems. Utilizing remote sensing data an effective approach achieve high-quality maps. However, water column interference can disturb reflected signal data. In this study, depth-invariant index (DII)...
Current satellite radiation products from polar-orbiting sensors like MODIS, SGLI, VIIRS, and OCI provide only daily averaged quantities, missing critical diurnal variations. These fluctuations in light energy, ranging none to ample throughout the day, significantly influence photosynthetic communities, impacting carbon export, nutrient cycling, ecosystem functions. Incorporating hourly changes phytoplankton absorption irradiance, as shown with GOCI data, has enhanced estimates of net...
In order to analyze the distribution characteristics and migration of juvenile chum salmon, a survey was conducted four times from March April 2019 using surfacewater pair trawl in coastal waters Gangwon province. The survival rate per unit area juvenile salmon averaged 2,302 individuals/km2 (1,625 2,984 individuals/km2), stock increased over time. total length 5.4 ± 1.2 cm 1st survey, 5.8 0.9 2nd 6.6 3rd 6.8 4th sharply between surveys. condition factor highest showed tendency decrease...
To examine the spatial distribution of mackerel catches within South Korea's Exclusive Economic Zone (EEZ) from 2011 to 2019, we evaluated habitat suitability index (HSI) for using satellite-derived environmental data combined with government-provided catch data. The HSI is widely recognized its capability in identifying and predicting potential fishing areas. By integrating records satellite-based variables such as Chlorophyll-a concentration (CHL), Sea Surface Temperature (SST), Height...
Choi, J. K., Hyun Yang, H. Han, Ryu, and Park, Y.J., 2013. Quantitative estimation of the suspended sediment movements in coastal region using GOCIThe Geostationary Ocean Color Imager (GOCI), world's first geostationary ocean color observation satellite, is useful for monitoring temporal dynamics water turbidity because it can obtain satellite images every hour during daytime. Temporal variation key to understanding regions. For example, a certain patch surface be traced by generating GOCI-...
The first geostationary ocean color data from the Geostationary Ocean Color Imager (GOCI) onboard Communication, Ocean, and Meteorological Satellite (COMS) have been accumulating for more than ten years 2010. This study performs a multi-year quality assessment of GOCI chlorophyll-a (Chl-a) radiometric 2012–2021 with an advanced atmospheric correction technique regionally specialized Chl-a algorithm. We examine consistency stability GOCI, Moderate Resolution Imaging Spectroradiometer (MODIS),...
Coal mine subsidence hazard can be effectively evaluated by geographic information system (GIS) analysis if sufficient data is provided. It is, however, difficult to obtain ground-based data, especially in remote and less populated mining areas. In this study, we construct validate a coal map Taebaek, Korea, integration of space-borne L-band synthetic aperture radar (SAR) measurements fuzzy-based model. There an approximately 15-year time interval between the used for model those subsidence....