Therm-water pollution caused by nuclear power station hazards the aquatic organism to grow and seriously destroys the coastal ecosystem. The method which uses satellite thermal infrared data to monitor the distribution of heat discharge dynamically in large area has big significance to prevent thermal pollution,and protect marine water quality and ecological environment. Two sea surface temperatures (SST) of Daya Bay were derived from the IRS onboard HJ satellite during 2009 using single-channel method. The analysis of the spatial distribution of SST shows the outlet of the two power plants with 3X^-5t higher SST than elsewhere in a more obvious diffusion shape. Histograms and temperature data of five points of interesting between IRS-SST and MODIS-SST show that both of the SST distributions are basically the same. This article confirmed IRS's a-bility and feasibility in therm-water pollution monitoring.%选择2009年的2景环境一号卫星热红外数据,利用单通道算法计算了大亚湾海水表面温度,分析该算法反演的海温空间分布特征,得到如下结论:大亚湾和岭澳核电站排水的出口温度,比周围水温高3℃～5℃,呈现明显的扩散状.然后,综合直方图和选取的5个样本点,将本文反演结果和当天的MODIS海水表面温度产品进行比较,结果表明:二者的海温分布特征基本一致.本文证实了环境一号卫星热红外遥感数据监测温排水的可行性.
展开▼
