Spatial patterns and quantification of lacustrine groundwater discharge determined based on 222Rn

The 132 bathymetric data from the lake while lake samples were taken on board. We created a bathymetric contour map in ArcGIS 10.2 using the natural neighborhood method to reflect the overall bathymetry of the lake through 116 randomly selected bathymetric data. The size of the Landsat 8 image was used as the basic unit (30*30 m) to divide the lake into 30*30 m areas and read data from 16 other bathymetric points that were not involved in the production of the bathymetric map.