| Abstract: | Straw incineration monitor is a key part of international environmental governance. In the paper, the combination of MODIS, MUX and TLC remote sensors is used to monitor straw burning fire points accurately. MODIS remote sensor has the characteristics of high temporal resolution and thermal infrared band, which can be used to judge the regional thermal abnormal variation and preliminary extract the suspicious thermal abnormal points. Combining with GIS information, the preliminary position of MODIS thermal abnormal points can be acquired. The MUX and TLC sensors of ZY-3 satellite in the preliminary position area can be pretreated, which includes radiometric calibration, atmospheric correction, geometric precision correction, ortho-rectification, etc. Through analyzing the physical properties and spectral information in the straw incineration area, the interpretation features of the straw incineration area will be determined. Then the high geographical resolution fusion image with two meters resolution can be interpreted, and the information of fire-point in high geographical resolution remote sensor can be extracted. Combining with the Google earth map to compare interpretation images in different time range of this area, and using ArcGIS platform to accurately position the confirmed fire point, the final position of the fire can be determined. Correspondingly, the combination of remote sensing sensors with high, medium and low resolution can be used to monitor the straw incineration point in county area. In experimental area, there are twenty-three straw burning fire points are found. The experimental results show that, this method can realize precise monitoring of straw incineration point in county area. However, straw incineration point monitoring in real time still need to be further investigated. |
