Spatiotemporal Variation in Suspended Sediment Concentrations and Related Factors of Coastal Waters Based on Multispatial Satellite Data in Gyeonggi Bay, Korea

Jinah Eom, Jong Kuk Choi, Joong-sun Won, Joo Hyung Ryu, David Doxaran, Kevin Ruddick, Seok Lee

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The variations in suspended sediment concentration (SSC) in turbid coastal waters around Gyeonggi Bay, Korea were analyzed using multiresolution ocean-color satellite imagery. Geostationary Ocean Color Imager (GOCI) and Land Satellite 7 (Landsat-7) Enhanced Thematic Mapper Plus (ETM+) images were atmospherically corrected, and an empirical algorithm was employed to generate maps of SSCs in the study area and investigate daily and annual variabilities in coastal water turbidity. SSC values were highest around 6 hours before high tide and around low tide, and the maximum values had strong positive relations with the tidal range near the sand ridge and channel (R2 values of 0.74 and 0.72, respectively), which implies that the main driver of the diurnal variability in SSC is resuspension of bottom sediment by tides in areas of shallow water. Annually, the maximum SSC value near the sand ridge was about 400 g m-3, showing remarkable variation over tidal cycles, whereas it was about 10 g m-3 in the open sea, with little variation. The SSC around the sand ridge was higher in winter than in summer, mainly because of stronger resuspension resulting from winds during the NW monsoon in winter. The SSC around the Han River estuary was higher in summer than in winter because of the river discharge, which indicates that suspended sediments supplied by the Han River do not significantly affect SSC variation in the open ocean. This study revealed that application of the high temporal resolution of GOCI, combined with the high spatial resolution of Landsat-7 ETM+, can be useful for monitoring short-and long-term variations in SSC in Korean coastal waters.

Original languageEnglish
Pages (from-to)653-667
Number of pages15
JournalJournal of Coastal Research
Volume33
Issue number3
DOIs
Publication statusPublished - 2017 May 1

Fingerprint

suspended sediment
coastal water
satellite data
sand ridge
tide
resuspension
winter
tidal range
ocean color
tidal cycle
summer
river discharge
open ocean
river
satellite imagery
turbidity
monsoon
spatial resolution
shallow water
estuary

All Science Journal Classification (ASJC) codes

  • Ecology
  • Water Science and Technology
  • Earth-Surface Processes

Cite this

Eom, Jinah ; Choi, Jong Kuk ; Won, Joong-sun ; Ryu, Joo Hyung ; Doxaran, David ; Ruddick, Kevin ; Lee, Seok. / Spatiotemporal Variation in Suspended Sediment Concentrations and Related Factors of Coastal Waters Based on Multispatial Satellite Data in Gyeonggi Bay, Korea. In: Journal of Coastal Research. 2017 ; Vol. 33, No. 3. pp. 653-667.
@article{d12578b306af416284897ca84a35ac6b,
title = "Spatiotemporal Variation in Suspended Sediment Concentrations and Related Factors of Coastal Waters Based on Multispatial Satellite Data in Gyeonggi Bay, Korea",
abstract = "The variations in suspended sediment concentration (SSC) in turbid coastal waters around Gyeonggi Bay, Korea were analyzed using multiresolution ocean-color satellite imagery. Geostationary Ocean Color Imager (GOCI) and Land Satellite 7 (Landsat-7) Enhanced Thematic Mapper Plus (ETM+) images were atmospherically corrected, and an empirical algorithm was employed to generate maps of SSCs in the study area and investigate daily and annual variabilities in coastal water turbidity. SSC values were highest around 6 hours before high tide and around low tide, and the maximum values had strong positive relations with the tidal range near the sand ridge and channel (R2 values of 0.74 and 0.72, respectively), which implies that the main driver of the diurnal variability in SSC is resuspension of bottom sediment by tides in areas of shallow water. Annually, the maximum SSC value near the sand ridge was about 400 g m-3, showing remarkable variation over tidal cycles, whereas it was about 10 g m-3 in the open sea, with little variation. The SSC around the sand ridge was higher in winter than in summer, mainly because of stronger resuspension resulting from winds during the NW monsoon in winter. The SSC around the Han River estuary was higher in summer than in winter because of the river discharge, which indicates that suspended sediments supplied by the Han River do not significantly affect SSC variation in the open ocean. This study revealed that application of the high temporal resolution of GOCI, combined with the high spatial resolution of Landsat-7 ETM+, can be useful for monitoring short-and long-term variations in SSC in Korean coastal waters.",
author = "Jinah Eom and Choi, {Jong Kuk} and Joong-sun Won and Ryu, {Joo Hyung} and David Doxaran and Kevin Ruddick and Seok Lee",
year = "2017",
month = "5",
day = "1",
doi = "10.2112/JCOASTRES-D-16-00012.1",
language = "English",
volume = "33",
pages = "653--667",
journal = "Journal of Coastal Research",
issn = "0749-0208",
publisher = "Coastal Education Research Foundation Inc.",
number = "3",

}

Spatiotemporal Variation in Suspended Sediment Concentrations and Related Factors of Coastal Waters Based on Multispatial Satellite Data in Gyeonggi Bay, Korea. / Eom, Jinah; Choi, Jong Kuk; Won, Joong-sun; Ryu, Joo Hyung; Doxaran, David; Ruddick, Kevin; Lee, Seok.

In: Journal of Coastal Research, Vol. 33, No. 3, 01.05.2017, p. 653-667.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Spatiotemporal Variation in Suspended Sediment Concentrations and Related Factors of Coastal Waters Based on Multispatial Satellite Data in Gyeonggi Bay, Korea

AU - Eom, Jinah

AU - Choi, Jong Kuk

AU - Won, Joong-sun

AU - Ryu, Joo Hyung

AU - Doxaran, David

AU - Ruddick, Kevin

AU - Lee, Seok

PY - 2017/5/1

Y1 - 2017/5/1

N2 - The variations in suspended sediment concentration (SSC) in turbid coastal waters around Gyeonggi Bay, Korea were analyzed using multiresolution ocean-color satellite imagery. Geostationary Ocean Color Imager (GOCI) and Land Satellite 7 (Landsat-7) Enhanced Thematic Mapper Plus (ETM+) images were atmospherically corrected, and an empirical algorithm was employed to generate maps of SSCs in the study area and investigate daily and annual variabilities in coastal water turbidity. SSC values were highest around 6 hours before high tide and around low tide, and the maximum values had strong positive relations with the tidal range near the sand ridge and channel (R2 values of 0.74 and 0.72, respectively), which implies that the main driver of the diurnal variability in SSC is resuspension of bottom sediment by tides in areas of shallow water. Annually, the maximum SSC value near the sand ridge was about 400 g m-3, showing remarkable variation over tidal cycles, whereas it was about 10 g m-3 in the open sea, with little variation. The SSC around the sand ridge was higher in winter than in summer, mainly because of stronger resuspension resulting from winds during the NW monsoon in winter. The SSC around the Han River estuary was higher in summer than in winter because of the river discharge, which indicates that suspended sediments supplied by the Han River do not significantly affect SSC variation in the open ocean. This study revealed that application of the high temporal resolution of GOCI, combined with the high spatial resolution of Landsat-7 ETM+, can be useful for monitoring short-and long-term variations in SSC in Korean coastal waters.

AB - The variations in suspended sediment concentration (SSC) in turbid coastal waters around Gyeonggi Bay, Korea were analyzed using multiresolution ocean-color satellite imagery. Geostationary Ocean Color Imager (GOCI) and Land Satellite 7 (Landsat-7) Enhanced Thematic Mapper Plus (ETM+) images were atmospherically corrected, and an empirical algorithm was employed to generate maps of SSCs in the study area and investigate daily and annual variabilities in coastal water turbidity. SSC values were highest around 6 hours before high tide and around low tide, and the maximum values had strong positive relations with the tidal range near the sand ridge and channel (R2 values of 0.74 and 0.72, respectively), which implies that the main driver of the diurnal variability in SSC is resuspension of bottom sediment by tides in areas of shallow water. Annually, the maximum SSC value near the sand ridge was about 400 g m-3, showing remarkable variation over tidal cycles, whereas it was about 10 g m-3 in the open sea, with little variation. The SSC around the sand ridge was higher in winter than in summer, mainly because of stronger resuspension resulting from winds during the NW monsoon in winter. The SSC around the Han River estuary was higher in summer than in winter because of the river discharge, which indicates that suspended sediments supplied by the Han River do not significantly affect SSC variation in the open ocean. This study revealed that application of the high temporal resolution of GOCI, combined with the high spatial resolution of Landsat-7 ETM+, can be useful for monitoring short-and long-term variations in SSC in Korean coastal waters.

UR - http://www.scopus.com/inward/record.url?scp=85019219847&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85019219847&partnerID=8YFLogxK

U2 - 10.2112/JCOASTRES-D-16-00012.1

DO - 10.2112/JCOASTRES-D-16-00012.1

M3 - Article

VL - 33

SP - 653

EP - 667

JO - Journal of Coastal Research

JF - Journal of Coastal Research

SN - 0749-0208

IS - 3

ER -