1. Open the RAOB Single Level Data Source Chooser
• Open the Data Choosers.
• In the Data Chooser tree click on the Point node.
• Click on the Upper Air tab.
• In the Server: entry box, select the remote ADDE server adde.ucar.edu. In the Data Type: entry box, select the Upper Air Data entry.
• Click on Connect.
• The IDV will connect to the ADDE server at adde.ucar.edu and download metadata about available RAOB data. You can load data in by relative times, or by absolute times. Select the Relative times radio button and the 4 most recent times option.
• From the Level list, select 500 for the 500 millibar level.
• Click the Add Source button.
2. If the Create display option was checked in the chooser, a Point Data Plot will automatically be created. If not, create one.
   • In the Field Selector window create a Point Data Plot display using the RAOB Point Data field.

The point data plot appears in the main window.



3. Set the projection to the continental U.S. (Projections→Predefined→US→CONUS menu).
4. Use the Point Data Plot control to change the plot density to show more stations.
5. Remove the display
6. Now, plot data at a different level and region.
   • In the Field Selector window select a different level (e.g. 250 mbar) in the Level tab of the Data Subset panel.
   • Under the Region tab, select a region of interest.
   • Click the Create Display button.

Unidata IDV Workshop for version 5.7 > Accessing and Displaying Data > Upper Air Displays