20040816: IDV version 1.1 available for download

>From: "Valentijn Venus" <address@hidden>
>Organization: ITC
>Keywords: 200408161545.i7GFjbaW027615  IDV 2D topo

Hi Valentijn-

>Exciting new stuff you've added to IDV! 

Thanks!

>How do I use the "2D gridded
>fields over topography" feature? We're looking to save crop growth
>simulation results in a 2D gridded format. 

You'd need a 2D variable and a terrain dataset.  Using the 
catalog chooser in the Data Source Selector, pick a dataset
like the "NCEP Eta 80km CONUS model data (real and near time)"
and choose one of the individual times (or use the link
to the latest), then click Add Source.  

Once the data is loaded, pick a 2D grid field like:

"Mean sea level pressure (ETA model reduction) at mean sea level"

and in the Displays, expand the 3D Surface category and choose
one of these types (try "Color-Shaded Plan View Over Topography")
and click the Create Display button.

You will be prompted to pick the topography dataset.  It should 
show "Geopotential height at surface of the earth" as a choice.
This is the model terrain.  Select that and click OK.

This will display the 2D pressure as a topographic feature.

>What is the best format to go after, netCDF?

That's our preferred format as long as you adhere to one of the
netCDF conventions and best practices:

http://www.unidata.ucar.edu/packages/netcdf/BestPractices.html

As long as you use these, you should be able to read the data
in IDV.

Don Murray
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