This internal routine is the heart of the code. It contains the main time-loop inside of which all routines required during the time step are called. The following main processes are successively triggered.
Depending on macros set for the Fortran pre-processor, extra features like the effects of sea-grass or sediments are considered in this routine (see section 10).
IMPLICIT NONEREVISION HISTORY:
Original author(s): Karsten Bolding & Hans Burchard