rothrock ice strength
debug rothrock scheme in the main from Emma's 4.0 branch: https://forge.ipsl.jussieu.fr/nemo/log/NEMO/branches/UKMO/NEMO_4.0.4_ice_strength_EAP
debug rothrock scheme in the main from Emma's 4.0 branch: https://forge.ipsl.jussieu.fr/nemo/log/NEMO/branches/UKMO/NEMO_4.0.4_ice_strength_EAP