id summary reporter owner description type status priority milestone component version severity resolution keywords cc 720 OPA vertical z_tilde coordinate mlelod Matthieu Leclair & Gurvan Madec "Introduce the ALE z_tilde vertical coordinate following Leclair and Madec (2010, in revision) based on the separation of high and low frequency motions. See wiki page for more informations." Enhancement closed normal OCE v3.2 fixed