Marine environmental change monitoring according to the dyke construction using Landsat TM/ETM+ data in the Saemangeum coastal area of Korea

Jee-Eun Min; Joo-Hyung Ryu; Seok Lee; Yu-Hwan Ahn

doi:10.1117/12.804939

19 December 2008 Marine environmental change monitoring according to the dyke construction using Landsat TM/ETM+ data in the Saemangeum coastal area of Korea

Jee-Eun Min, Joo-Hyung Ryu, Seok Lee, Yu-Hwan Ahn

Author Affiliations +

Proceedings Volume 7150, Remote Sensing of Inland, Coastal, and Oceanic Waters; 71501O (2008) https://doi.org/10.1117/12.804939
Event: SPIE Asia-Pacific Remote Sensing, 2008, Noumea, New Caledonia

Abstract

In the Saemangeum coastal area as a study area, the tidal dyke of 33 km-long has been constructed for over 10 years. This large scale of coastal engineering work has influenced the environment around the Saemangeum tide embankment. Especially the construction has induced in the changes of ocean circulation system, so that the re-suspension and movement of the Suspended Sediments (SS) were changed. The Suspended Sediments Concentration (SSC) is an important factor for understanding of the Saemangeum oceanic environmental change because SSC directly affect to the primary production by phytoplankton in the ocean. Accordingly we investigated and monitored the SS and chlorophyll concentration change using time-series multi-sensor satellite data. We used Landsat TM/ETM+ for the SS and chlorophyll monitoring respectively. As a result, it was found that the northern sea area of Gogunsan Islands had significantly become clear after the completion of 4th embankment in the end of 2003 whereas the southern sea area was getting a high amount of incoming flux of SS through 2 dyke gates that were still under construction. Chlorophyll concentration around the 4th embankment showed an increasing pattern after dyke construction.

Citation Download Citation

Jee-Eun Min, Joo-Hyung Ryu, Seok Lee, and Yu-Hwan Ahn "Marine environmental change monitoring according to the dyke construction using Landsat TM/ETM+ data in the Saemangeum coastal area of Korea", Proc. SPIE 7150, Remote Sensing of Inland, Coastal, and Oceanic Waters, 71501O (19 December 2008); https://doi.org/10.1117/12.804939

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KEYWORDS

Earth observing sensors

Landsat

Satellites

Water

Algorithm development

Environmental monitoring

Ocean optics

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