3 Simulation

The following scripts are provided by the author for running CESM with the transient urban albedo functionality.

Modify job script

  • transient_urbanalbedo_roof: If true, roof albedo changes over time.

    • stream_fldFileName_urbanalbtvroof: Filename of input stream data for time varying urban roof albedo

    • stream_meshfile_urbanalbtvroof: Mesh filename of input stream data for time varying urban roof albedo

    • stream_year_first_urbanalbtvroof: First year to loop over for urban time varying roof albedo

    • stream_year_last_urbanalbtvroof: Last year to loop over for urban time varying roof albedo

    • model_year_align_urbanalbtvroof: Simulation year that aligns with stream_year_first_urbanalbtvroof value

    • urbanalbtvroofmapalgo: Mapping method from urban time varying roof albedo file to the model resolution.

  • transient_urbanalbedo_improad: If true, impervious road albedo changes over time.

  • transient_urbanalbedo_wall: If true, wall albedo changes over time

  • Define the albedo stream input. Please refer to the last section 2 Surface Input.

    # For example
echo "transient_urbanalbedo_roof = .true.">> user_nl_clm
echo "fsurdat='${SURF}'" >> user_nl_clm
echo "stream_fldFileName_urbanalbtvroof = '${INPUT}/dyn_alb_roof_0.9x1.25_simyr2020-2025_c240930.nc'">> user_nl_clm 
echo "stream_meshfile_urbanalbtvroof = '${INPUT}/lnd_mesh.nc'"
echo "stream_year_first_urbanalbtvroof = 2000" >> user_nl_clm
echo "stream_year_last_urbanalbtvroof = 2025" >> user_nl_clm
echo "model_year_align_urbanalbtvroof = 2000" >> user_nl_clm
echo "urbanalbtvroofmapalgo = 'nn'" >> user_nl_clm