function f = coriolis(lat)
%  1.  NAME
%
%  coriolis - Calculate Coriolis coefficient
%
%  2.  SYNOPSIS
%
%  f = coriolis(lat )
%
%  3.  DESCRIPTION
%
%  This function returns the Coriolis parameter for the specified
%  latitude.
%
%  4.  AUTHORS
%
%  Pierre Jaccard, Geophysical Institute, University of Bergen, 1999
%

%--- Calculate coriolis coefficient:
f = 4.0 * pi * sin(pi*lat/180.0)/86400.0;


