摘要
为了探索利用卫星遥感数据监测核电站温排水的业务方法,并检验新发射的Landsat-8卫星的热红外数据用于核电站温排水监测的应用能力,选取红沿河核电站附近的10 km×10 km海域作为研究区域,采用Landsat-8卫星的热红外数据与中分辨率成像光谱仪(Moderate Resolution Imaging Spectroradiometer,MODIS)温度产品的交叉标定方式建立了温度信息提取模型。参考《海水水质标准》,将温排水的不同温升强度分成五级;辅以现场水文、气象资料数据,分析了红沿河核电站温排水的温度场分布及温升强度变化,绘制出了不同潮汐条件下1℃步长的温升曲线,获取了不同温升的影响面积。将该数据与温排水数学模拟计算及物理模型试验的综合结果进行了对比。结果表明,依据这种研究方法,Landsat 8卫星数据可实现高精度的核电站温排水遥感监测。
To explore the way to use remote sensing data to monitor the thermal plume from a nuclear power plant and verify the application ability of the thermal infrared data from Landsat-8 satellite in thermal plume monitoring of a nuclear power plant,a sea area of 10×10 km^2 near Hongyanhe Nuclear Power Plant is selected as the research area.The cross calibration method consisting of the thermal infrared data from Landsat-8 satellite and the temperature product from the Moderate Resolution Imaging Spectroradionieter（MODIS） is used to establish a temperature information extraction model.By referring to the ＇Sea Water Quality Standard＇,different temperature rising intensity is classified into five ranks.With the supplemented in-situ hydrological and meteorological data,the temperature field distribution and temperature rising intensity variation of the thermal plume from Hongyanhe Nuclear Power Plant are analyzed.The temperature rising curves of a step of 1 ℃ in different tidal states are mapped out.The areas affected by different temperature rising are obtained.The data are compared with the comprehensive result of the mathematic simulation and physical model test.The results show that with the Landsat-8 satellite data,precise monitoring of thermal plume from a nuclear power plant can be implemented.
出处
《红外》
CAS
2015年第8期22-27,共6页
Infrared
基金
海域使用动态监测和污染监测研究(41-Y30B12-9001-14/16)
