High resolution remote sensing application research in active fault surveying

This paper analyzes systematically the technology status-quo and work flow of high resolution remote sensing in application of the active fault investigation，combing with the various of remote sensing data requirements，applicable conditions and processing methods，and summarizes the interpretation method，interpretation elements and measurement parameters of remote sensing for active faults. Furthermore，some typical features of faulted geomorphologies are analyzed，and the corresponding remote sensing characteristics are described. Taking the Daqingshan as a test，the geometric features and activity characteristics of the active faults in the area are interpreted by using the stereoscopic image and image of ZY3，meeting the needs of quantitative research on the active structure. The results suggest that the old remote sensing image should be collected in the surfaces deeply changed by city development，and the spectral differences in different bands can be adopted to enhance the information of buried faults，meanwhile, the spatial enhancement methods can be used to identify fault scarp. Multi-polarization radar data decomposition is an effective method for the detection of buried structure features，and tracking from the macro information to the local information is also an effective way to make active faults interpretation. The combination of remote sensing images with DEM will improve the measurement precise of active fault parameters. The results provide reference for the large-scale and quantitative investigation of active faults，and for the researchers to grasp the relevant technology of remote sensing application as soon as possible.