METHOD AND APPARATUS FOR MONITORING DRYING UP OF RIVERS BASED ON MULTI-SOURCE REMOTE SENSING IMAGES

Disclosed are a method and an apparatus for monitoring drying up of rivers based on multi-source remote sensing images. The method includes: acquiring multi-source satellite remote sensing images of a monitoring region; preprocessing the multi-source satellite remote sensing images; calculating a normalized difference water indeX by using meter-level remote sensing images, and extracting water body information of trunk rivers; reversely cutting the water bodies of trunk rivers based on the regional river channel buffer vector data to obtain first-level suspected dried-up river channels; analyzing the first-level suspected dried-up river channels based on the sub-meter-level remote sensing images by using an object-oriented method to obtain water body information of small rivers; and reversely cutting the first-level suspected dried-up river channels by using the water body information of small rivers to obtain second-level suspected dried-up river channels.