for the Krauss-Turner mixed layer physics and Richardson number mixing:

umin_kt	minimum wind speed in KT physics	2.5 m/s
M	shear production coefficient	1.0
N	mixing efficiency	0.15
rich	critical Richardson number	0.8
delhri	maximum Richardson number dH	0.1 m
diss	dissipation	0.0
w1max	maximum entrainment/detrainment in the mixed layer	+/- 1e-4 m/s