features that would seem useful to add or improve

[gaelforget]

• use DataDeps for code and data inputs
• better handling of environment variables (switch to withenv, ...)
  • MITGCM_ROOTDIR, DATADEPS_ALWAYS_ACCEPT
  • NETCDF_ROOT, MPI_INC_DIR
• method to cutout subdomain from a global grid, and generate inputs for OBCS
• passive tracer example with interactive choice of injection site
• workflow that repeats forcing, starting from final checkpoint
• profiles package handling (input, output, interpolation coeffs)
• ecco package handling (cost function, generic terms)
• adjoint examples (gradient check, reconstruction)
• preparation of initial conditions for e.g. llc90 and cs32
• preparation of forcing field on e.g. llc90 and cs32
• pkg/darwin+radtrans example
• plot method for MITgcm_config (verification exps to start)
• summary view across stdout, and interactive access to items in it
• more detailed and explicit feedback from system_check
  • especially wrt undocumented features like NETCDF_ROOT and SKIP_NETCDF_CHECK (genmake2 sometimes returns error in relation to these)
  • maybe point user to this issue and other relevant issues