Dear Alexandra Thanks for the proposals. As we have discussed, I think the standard names are fine. For CMIP6 and SIMIP it is perfectly OK to specify the cell_methods for the diagnostics you want. The standard_name definitions, however, should not include mean, maximum, etc. or the specification of cell_methods. The standard_name and cell_methods together describe the diagnostics.
Best wishes Jonathan ----- Forwarded message from Alexandra Jahn <[email protected]> ----- > Date: Fri, 12 Aug 2016 19:44:12 +0000 > From: Alexandra Jahn <[email protected]> > To: "[email protected]" <[email protected]> > Subject: [CF-metadata] New sea ice variable definitions (CMIP6 SIMIP) > > Dear CF community, > > to more specifically describe sea-ice output from climate-model simulations > for the CMIP6 Sea-Ice MIP (SIMIP), we would like to propose the following > additional new CF standard names (as part of the SIMIP CMIP6 data request). > 1. magnitude_of_sea_ice_normal_stress: Average normal stress in sea ice > (first stress invariant), units 'N m-1’. This is a horizontal stress, which > is perpendicular/normal to each of the vertices making up the a grid cell in > the horizontal plane. The average represent the spatial average stress. > Cell_method attribute "area: average” > 2. magnitude_of_sea_ice_shear_stress: Maximum shear stress in sea ice > (second stress invariant), units 'N m-1’. This is a horizontal shear, the > areal maximum shear of the normal and shear stress stress acting on the > vertices of a grid. Cell_method attribute "area: maximum”. > 3. magnitude_of_sea_ice_velocity_shear: Maximum shear of sea-ice velocity > field (second shear strain invariant)(new variable with units '1/s’). This is > the areal maximum shear strain rate in the horizontal plane of the sea ice. > Cell_method attribute "area: maximum” > Thank you very much for your feedback, guidance and input. > > With best wishes, for the SIMIP Steering Committee, > > Alexandra Jahn > > > Alexandra Jahn > Assistant Professor, Department of Atmospheric and Oceanic Sciences > INSTAAR Fellow > University of Colorado Boulder > Campus Box 450 > Boulder, CO 80309-0450 USA > [email protected]<mailto:[email protected]> > Phone: 303-735-3352 > http://instaar.colorado.edu/people/alexandra-jahn/ > > > > > > > _______________________________________________ > CF-metadata mailing list > [email protected] > http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata ----- End forwarded message ----- _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
