Prepare data: use the natural breakpoint method to classify the tif image data that has been inverted to obtain the raster image data with different ground temperature classifications.
1. Calculate the barycentric coordinates of each geothermal grade
ArcToolbox——Spatial Analyst—area analysis—displaying regional geometric statistics in tables
Use this tool to obtain geometric data of various ground temperature levels: area, perimeter, XY coordinates of the center of gravity and other data.
2. Import XY coordinates into the map
Firstly, the obtained XY coordinate data is processed into an excel sheet, and the data of the same ground temperature level in different years are placed in the same sheet. As shown:
Then save the .xlsx file as a .csv file.
Add the .csv file to the map:
After being added to the map, it will be displayed on the map and can be exported as a shp file:
At this time, you can see the center of gravity transfer trajectory of the same temperature level in different years on the map.
