Abstract
Thermal power technology has brought great convenience for human electricity energy demand, but thermal discharge from thermal power plants has caused great harm to the coastal environment. Therefore, it’s important to strengthen the monitoring of thermal pollution from power plants for guarantee the normal operation of coastal environment and ecological system. Thermal infrared remote sensing technology provides a new measure for monitoring the thermal discharge. In this paper, we use mono-window algorithm and Landsat thermal infrared data to retrieved the sea surface temperature around Xiangshan Power Plants, and achieved the result of 1~5.4°C temperature rise in 106.52km2 in Xiangshan Harbor, revealed the spatial distribution regularities of thermal discharge and discussed the influence of thermal discharge on costal environment.
Highlights
With the rapid development of industry, the demand for energy increase, the construction of power plants increase, the installed capacity of power plants expand, and the demand for condensate increase
According to the calculate method of Sea Surface Temperature (SST), we can achieve the result of SST in three different imaging time about Xiangshan Power Plant (Fig.1)
Through the research of thermal discharge pollution of Xiangshan Power Plants based on remote sensing technology, we found that, thermal infrared Remote Sensing (RS) technology can provide a convenient method for the study of SST with the improvement of RS technology and research methods
Summary
With the rapid development of industry, the demand for energy increase, the construction of power plants increase, the installed capacity of power plants expand, and the demand for condensate increase. Most of plants use once-through cooling water system which is condense the plants by extract natural water from the lake or ocean, and discharge the heated water to receiving water directly, the water heated by high temperature in power plants named Thermal Discharge. While thermal discharge produces negative effects to receiving water ecological environment, it harms to aquatic organism, this situation is called Thermal Pollution. While the Sea Surface Temperature (SST) refers to the temperature of sea in surface, generally refers to the average temperature of 0.5m depth in sea surface. It have important applications in the atmosphere energy and material exchange, weather forecasts, global ocean circulation, climate change
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