Results 51 to 60 of about 1,152 (203)

Retrieval of Chlorophyll a Concentration Using GOCI Data in Sediment-Laden Turbid Waters of Hangzhou Bay and Adjacent Coastal Waters

open access: yesJournal of Marine Science and Engineering, 2023
The Geostationary Ocean Color Imager (GOCI) provided images at hourly intervals up to 8 times per day with a spatial resolution of 500 m from 2011 to 2021.
Yixin Yang   +6 more
doaj   +1 more source

Estimation of Water Quality Index for Coastal Areas in Korea Using GOCI Satellite Data Based on Machine Learning Approaches [PDF]

open access: yes, 2016
In Korea, most industrial parks and major cities are located in coastal areas, which results in serious environmental problems in both coastal land and ocean.
Ha, Sunghyun   +4 more
core   +1 more source

Evaluation of Four Atmospheric Correction Algorithms for GOCI Images over the Yellow Sea

open access: yesRemote Sensing, 2019
Atmospheric correction (AC) for coastal waters is an important issue in ocean color remote sensing. AC performance is fundamental in retrieving reliable water-leaving radiances and then bio-optical parameters.
Xiaocan Huang   +7 more
doaj   +1 more source

Estimation of ground-level particulate matter concentrations through the synergistic use of satellite observations and process-based models over South Korea [PDF]

open access: yes, 2019
Long-term exposure to particulate matter (PM) with aerodynamic diameters < 10 (PM10) and 2.5 mu m (PM2.5) has negative effects on human health. Although station-based PM monitoring has been conducted around the world, it is still challenging to ...
C.-K. Song   +11 more
core   +2 more sources

An Improved Cloud Masking Method for GOCI Data over Turbid Coastal Waters

open access: yesRemote Sensing, 2021
Clouds severely hinder the radiative transmission of visible light; thus, correctly masking cloudy and non-cloudy pixels is a preliminary step in processing ocean color remote sensing data.
Shiming Lu   +6 more
doaj   +1 more source

Assessing Diurnal Variability of Biogeochemical Processes Using the Geostationary Ocean Color Imager (GOCI) [PDF]

open access: yes, 2018
Short-term (hours) biological and biogeochemical processes cannot be fully captured by the current suite of polar-orbiting satellite ocean color sensors, as their temporal resolution is limited to potentially one clear image per day. Geostationary sensors, such as the Geostationary Ocean Color Imager (GOCI) from the Republic of Korea, allow the study ...
Javier Concha   +3 more
openaire   +1 more source

Aerosol optical properties derived from the DRAGON-NE Asia campaign, and implications for a single-channel algorithm to retrieve aerosol optical depth in spring from Meteorological Imager (MI) on-board the Communication, Ocean, and Meteorological Satellite (COMS) [PDF]

open access: yes, 2016
An aerosol model optimized for northeast Asia is updated with the inversion data from the Distributed Regional Aerosol Gridded Observation Networks (DRAGON)northeast (NE) Asia campaign which was conducted during spring from March to May 2012.
B. Holben   +12 more
core   +2 more sources

Initial On-Orbit Modulation Transfer Function Performance Analysis for Geostationary Ocean Color Imager [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2012
The world’s first geostationary ocean color imager (GOCI) is a three-mirror anastigmat optical system 140 mm in diameter. Designed for 500 m ground sampling distance, this paper deals with on-orbit modulation transfer function (MTF)measurement and ...
Eunsong Oh   +4 more
doaj   +1 more source

Remote sensing of suspended sediment in high turbid estuary from sentinel-3A/OLCI: A case study of Hangzhou Bay

open access: yesFrontiers in Marine Science, 2022
The suspended sediment in water infers water quality, and directly reflects optical properties such as water transparency, turbidity, and water color. Thus, these physical properties provide a viable basis to rigorously retrieve for suspended sediment ...
Zhifeng Yu   +13 more
doaj   +1 more source

The Spatial Maps of Paddy Rice Yield over Northeast Asia Using COMS Geostationary Satellite and Reanalysis Meteorological Data [PDF]

open access: yesGeo Data, 2021
This study estimated rice yield maps for Northeast Asia by using the Communication, Ocean and Meteorological satellite (COMS), Terra satellite, and Regional Data Assimilation and Prediction System (RDAPS) of the numerical model.
Seungtaek Jeong   +2 more
doaj   +1 more source

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