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[IDV #DTR-324190]: Centering a data source in Europe

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  • Subject: [IDV #DTR-324190]: Centering a data source in Europe
  • Date: Tue, 22 Feb 2022 10:48:31 -0700
> Full Name: Paula
> Email Address: address@hidden
> Organization: Universitat de Barcelona - STUDENT
> Package Version: 6.0u1 build date:2021-07-29 17:09 UTC
> Operating System: Windows 10
> Hardware: Java: home: C:\Program Files\IDV_6.0u1\jre version: 1.8.0_282 
> j3d:1.6.1 fcs fcs
> Description of problem: I need to plot these displays (Absolute Vorticity and 
> Geo Avor Advection, which I had saved as favorite displays) over the whole 
> Europe map, but with the data set I am using, I came up with this problem: no 
> data is plotted in west Spain and beyond.
> I have checked the properties from the data source, and I have seen that the 
> spatial subset I am using covers the whole world, but the bounding box cuts 
> the Europe region the same way the data is cut in the View Window. Since the 
> bounding box cuts Europe as I have mentioned, I cannot draw a region (when 
> trying to subset my data source or when trying to display only a spatial 
> subset from the data) that would include the whole Europe zone in a single 
> box. Is there any way to change the spatial subset from a global data set to 
> center it in Europe? Or, is there any other way I could fix my problem?
> 
> The data source I am using is a subset of a few time steps I saved as a .zidv 
> file from the data source whose pathway is as follows:
> Data Choosers> Catalogs> Main IDV Catalog> Forecast Model Data> Global 
> Forecast System (GFS)> GFS One Degree - Global Coverage> GFS One Degree 
> Forecast> GFS Global onedeg 20220217 0000.grib2 .
> 
> Thank you in advance,
> 
> Paula
> 

Hi Paula,

We do have a solution for your problem.

Use the same dataset:

Forecast Model Data> Global Forecast System (GFS)> GFS One Degree - Global 
Coverage> GFS One Degree Forecast> GFS Global onedeg 20220217 0000.grib2

BUT, you need to specify the data source type as "Grid Coverages..",  after 
loading the data,  you can subset the data region across the zero longitudes.

https://docs.unidata.ucar.edu/idv/current/workshop/datadisplays/grid/GridCoverage.html


Yuan

> 


Ticket Details
===================
Ticket ID: DTR-324190
Department: Support IDV
Priority: Normal
Status: Open
===================
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