run integrated land without canopy

Author: szy21

experiments/ClimaEarth/components/land/climaland_integrated.jl

@@ -131,12 +131,15 @@ function ClimaLandSimulation(
 
     # Set up leaf area index (LAI)
     stop_date = start_date + Dates.Second(float(tspan[2] - tspan[1]))
-    LAI = CL.prescribed_lai_modis(
-        surface_space,
-        start_date,
-        stop_date;
-        time_interpolation_method = LinearInterpolation(),
-    )
+    # LAI = CL.prescribed_lai_modis(
+    #     surface_space,
+    #     start_date,
+    #     stop_date;
+    #     time_interpolation_method = LinearInterpolation(),
+    # )
+    # For now we run without canopy by setting LAI to 0.
+    # We can add canopy back once it is treated implicitly.
+    LAI = TimeVaryingInput((t) -> 0)
 
     model = CL.LandModel{FT}(forcing, LAI, toml_dict, domain, dt)