Study on Lake Water Body Evolution Based on Multi-source Remote Sensing Data
Based on Landsat TM and OLI remote sensing data, Modified Normalized Water Index (MNDWI) was used to extract lake water body information from Tuanbo Lake in Jinghai District of Tianjin. According to the land use type transfer matrix and land type dynamic attitude are used to analyze the evolution characteristics of land use type. The results showed that the lake water area de-creased from 1995 to 2020. During the period from 1995 to 2020, urban land area increased the most while water area changed the least. The vegetation area was greatly reduced, most of which was converted to towns and a small amount was converted to water bodies. The change of water area is relatively stable without big fluctuation.