id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc 758,ORCA1 support and alternative vertical levels,acc,acc,"ORCA1 configuration details are to be added to v3.3beta. ORCA1 is in use with several different vertical grids including a 75 level version which uses a double tanh function to set the vertical spacing. This same vertical grid is also used with some configurations of ORCA025. Support for ORCA1 will therefore be added in two stages: A. The introduction of an optional double tanh function in domzgr. This will be selected via a logical (ldbletanh) set in each par*.h90 file. This will be false and the associated parameters set to ""pp_do_not_use"" for all configurations except for ORCA025 (key_orca_r025). In par_ORCA_R025.h90 two alternative sets are provided: one for 75 levels (with ldbletanh=T) and one for the standard 46 level case (with ldbletanh=F). The standard case will be used unless key_orca_r025=75 is defined. B. The ORCA1 settings (par_ORCA_R1.h90) and associated changes will be added to the system with similar support for 75 and 46 level versions.",Enhancement,closed,low,,OCE,v3.3,,fixed,,