Tom I have updated sea-ice code to fix problem that you reported. Could you "cvs up -r release1", then try your Atlantic test once again. Dimitris -- Dimitris Menemenlis menemenlis at jpl.nasa.gov Jet Propulsion Lab, MS 300-323 tel: 818-354-1656 4800 Oak Grove Dr, Pasadena CA 91109 fax: 818-393-6720