8.1.3 Custom Cost Functions

This section (very much a work in progress...) pertains to the special cases of cost_gencost_bpv4.F, cost_gencost_seaicev4.F, cost_gencost_sshv4.F, cost_gencost_sstv4.F, and cost_gencost_transp.F. The cost_gencost_transp.F function can be used to compute a transport of volume, heat, or salt through a specified section (non quadratic cost function). To this end one sets gencost_name = `transp*', where * is an optional suffix starting with `_', and set gencost_barfile to one of m_trVol, m_trHeat, and m_trSalt.

name	description	remarks
`sshv4-mdt`	sea surface height	mean dynamic topography (SSH - geod)
`sshv4-tp`	sea surface height	Along-Track Topex/Jason SLA (level 3)
`sshv4-ers`	sea surface height	Along-Track ERS/Envisat SLA (level 3)
`sshv4-gfo`	sea surface height	Along-Track GFO class SLA (level 3)
`sshv4-lsc`	sea surface height	Large-Scale SLA (from the above)
`sshv4-gmsl`	sea surface height	Global-Mean SLA (from the above)
`bpv4-grace`	bottom pressure	GRACE maps (level 4)
`sstv4-amsre`	sea surface temperature	Along-Swath SST (level 3)
`sstv4-amsre-lsc`	sea surface temperature	Large-Scale SST (from the above)
`si4-cons`	sea ice concentration	needs sea-ice adjoint (level 4)
`si4-deconc`	model sea ice deficiency	proxy penalty (from the above)
`si4-exconc`	model sea ice excess	proxy penalty (from the above)
`transp_trVol`	volume transport	specify section as in section 8.1.2
`transp_trHeat`	heat transport	specify section as in section 8.1.2
`transp_trSalt`	salt transport	specify section as in section 8.1.2