adjust layer dynamics for core initializiation runs

mo_layer_dynamics.f90

@@ -185,7 +185,7 @@ CONTAINS
   !!
   !! @par Revision History
   !! Pasted by Philipp Griewank, IMPRS (2011-05-10)
-  !! Edited by Niels Fuchs, UHH (2024-05-03), changed thick_0 to thick(k) in middle layers to work better with ice core initialization
+  !! Edited by Niels Fuchs, UHH (2024-05-03), changed thick_0 to thick(k) in middle layers to work better with ice core initialization, since middle layer thickness can vary
 
 
   SUBROUTINE top_melt (Nlayer,N_active,N_middle,N_top,thick_0,m,S_abs,H_abs,thick,N_bgc,bgc_abs)