[MITgcm-support] Netcdf overlays

[Martin Losch]

Hi Chris,

this a problem of ncview, or rather of the MITgcm/mnc-pkg not following the conventions that ncview expects. The "netcdf coordinate variables" X and Y are sometimes just the grid indices (I would have expected that the nc-attribute "description" would actually describe what's in the coordinate variable, but apparently for global_ocean.90x40x15, this attribute is not correct). Ncview interprets them as coordinate variables in degrees. I don't know why this happens in the particular case (try figuring out the call tree within the diagnostics and/or netcdf package and you'll see, why it's difficult to say anything about that), but you can try to tweak ncview into not using the overlays by default. There should be a "resource" that can be specified in the Ncview configuration file(s).

Martin

On Aug 13, 2013, at 10:41 PM, Chris Horvat <horvat at fas.harvard.edu> wrote:

> Hi, 
> 
> I'm looking at output that relates to the verification experiment global_oce.90x45x15, and whenever I load in a netcdf file for viewing (say with ncview), it pops up an overlay of the continents which I have to deselect, because it is incorrectly scaled (I am just using 1 processor/tile). 
> 
> It seems to me that this is an artifact of the original verification experiment, for which it is subdivided and therefore the coastlines match the tiling... but I'm not sure how to change this in the experiment. 
> 
> Any help? Other runs not based on this experiment don't auto-load the coastlines
> 
> Chris
> 
> 
> ---
> Christopher Horvat -- www.chrv.at
> 
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