Application of satellite infrared data for mapping of thermal plume contamination in coastal ecosystem of Korea
Application of satellite infrared data for mapping of thermal plume contamination in coastal ecosystem of Korea
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DOI：
10.1016/j.marenvres.2005.09.001
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发表时间：
2006-03-01
影响因子：
3.3
通讯作者：
Kang, YQ
中科院分区：
文献类型：
--
作者：
Ahn, YH;Shanmugam, P;Kang, YQ
韩国西海岸5900兆瓦的永光核电站排放的温水影响了沿海生态[KORDI报告（2003）]。广域观测永光5号、6号核电站运行的影响。BSPI 319-00-1426-3， KORDI，首尔，韩国]。本文报告了1985-2003年由Landsat卫星和美国国家海洋和大气管理局（NOAA）卫星提供的星载热红外数据的时间序列中温水热羽特征的时空特征。利用NOAA卫星的高分辨率辐射计数据对海表温度进行了表征。这些资料显示了永旺沿海地区热柱特征的一般模式和延伸范围。相比之下，利用Landsat-5和7卫星对专题制图数据进行的海温分析提供了有关这些水域羽流形状、尺寸和扩散方向的更多信息。夏季风时在流量以南70 ~ 100 km处和冬季风时在西北50 ~ 70 km处检测到热羽特征。探测到的烟羽平均温度夏季为28℃，冬季为12℃。冬季温度在2 ~ 4℃之间，夏季温度在2℃之间。这些值低于再循环水温度（6-9℃）。此外，潮滩与近海（SSTtidal flats - sstoffso）的温差在涨潮时为5.4至8.5摄氏度，在退潮时为3.5摄氏度。数据还表明，在涨潮期间，在潮滩上被直接太阳辐射加热的水可能在退潮期间被输送到近海。基于这些结果，我们认为，迫切需要保护永光沿海海洋生态系统的健康，免受永光核电站大量排放的温水严重的热影响。(c) 2005 Elsevier Ltd版权所有。
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 AT 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. (c) 2005 Elsevier Ltd. All rights reserved.