Document Detail


Application of satellite infrared data for mapping of thermal plume contamination in coastal ecosystem of Korea.
MedLine Citation:
PMID:  16256190     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The 5900 MW Younggwang nuclear power station on the west coast of Korea discharges warm water affecting coastal ecology [KORDI report (2003). Wide area observation of the impact of the operation of Younggwang nuclear power plant 5 and 6, No. BSPI 319-00-1426-3, KORDI, Seoul, Korea]. Here the spatial and temporal characteristics of the thermal plume signature of warm water are reported from a time series (1985-2003) of space-borne, thermal infrared data from Landsat and National Oceanic and Atmospheric Administration (NOAA) satellites. Sea surface temperature (SST) were characterized using advanced very high resolution radiometer data from the NOAA satellites. These data demonstrated the general pattern and extension of the thermal plume signature in the Younggwang coastal areas. In contrast, the analysis of SST from thematic mapper data using the Landsat-5 and 7 satellites provided enhanced information about the plume shape, dimension and direction of dispersion in these waters. The thermal plume signature was detected from 70 to 100 km to the south of the discharge during the summer monsoon and 50 to 70 km to the northwest during the winter monsoon. The mean detected plume temperature was 28 degrees C in summer and 12 degrees C in winter. The DeltaT varied from 2 to 4 degrees C in winter and 2 degrees C in summer. These values are lower than the re-circulating water temperature (6-9 degrees C). In addition the temperature difference between tidal flats and offshore (SSTtidal flats - SSToffsore) was found to vary from 5.4 to 8.5 degrees C during the flood tides and 3.5 degrees C during the ebb tide. The data also suggest that water heated by direct solar radiation on the tidal flats during the flood tides might have been transported offshore during the ebb tide. Based on these results we suggest that there is an urgent need to protect the health of Younggwang coastal marine ecosystem from the severe thermal impact by the large quantity of warm water discharged from the Younggwang nuclear power plant.
Authors:
Yu-Hwan Ahn; Palanisamy Shanmugam; Jae-Hak Lee; Yong Q Kang
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2005-10-26
Journal Detail:
Title:  Marine environmental research     Volume:  61     ISSN:  0141-1136     ISO Abbreviation:  Mar. Environ. Res.     Publication Date:  2006 Mar 
Date Detail:
Created Date:  2006-02-10     Completed Date:  2006-04-25     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9882895     Medline TA:  Mar Environ Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  186-201     Citation Subset:  IM    
Affiliation:
Ocean Satellite Research Group, Korea Ocean Research and Development Institute, Ansan, P.O. Box 29, Seoul 425-600, Korea. yhahn@kordi.re.kr
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MeSH Terms
Descriptor/Qualifier:
Ecosystem
Environmental Monitoring / methods*
Geologic Sediments
Infrared Rays
Korea
Oceans and Seas
Power Plants
Satellite Communications
Seawater
Temperature
Time Factors
Water Movements
Water Pollution / analysis*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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