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Variance of Subgrid Scale Orography reference

heyej

New member
Hi,

I'm trying to track what digital elevation model is used to calculate the static field "VAR_SSO" of the WPS v3 static fields (WRF Download).

Based on this post in the forum (References for geogrid static data) I guess it is USGS GTOPO30 but I just wanted to be sure that the topography reference include the VAR_SSO field.

Thank you in advance,
Gus
 
Gus,

VARSSO is independently calculated based on topography data of different resolution. Currently WPS Geostatic provides several varsso datasets of different resolutions, i.e., varsso_10m, varsso_2m, varsso_5m etc. Note that topography reference doesn't include varsso data.
 
Hi,

could you please provide reference for the original topographic data on which the calculation of VAR_SSO is based? In particular I am interested in what the spatial resolution of the source topographic dataset is.

Thank you
Giovanni
 
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