Model code of the supraglacial hydrology model. In the file running_instruction(1).txt, we give the steps about compiling and running the fortran coded part of the hydrology model. In the file, running_lake_refreezing_module.txt, we give the steps that should be followed in order to run the matlab coded part of the hydrology model. In README.txt, we give the role and description of all the code files (both fortran-coded as well as matlab-coded)