First, load up a couple of satellite images.

1. If you haven't already done so, remove all displays.
2. From the Field Selector window, select the 1 km GOES-8 Visible data source.
3. Select the 0.65 um Visible - Cloud Cover field in the Fields panel, and select Image Sequence Display in the Displays panel.
4. In the Times panel, select the Use Default menu item and select the 1998-06-29 21:15:00Z and 1998-06-29 22:15:00Z entries in the list.
5. Click the Create Display button to load in those two images.

1. First, let's keep the satellite projection for now. Uncheck the Projections→Auto-set Projection menu item.
2. From the Field Selector window, select the DVN (Base Reflectivity Tilt 1) data source.
3. Select the Image Sequence field in the Fields panel, and select Image Sequence display in the Displays panel.
4. In the Times panel, make sure the Use Default menu item is selected.
5. Click the Create Display button to load in the images.
6. Toggle between the two images by pressing the F1 key.
7. Turn both images on by pressing the F2 key.


8. You can reproject data into any projection you want. Let's change to the local radar projection.
   • Select the base reflectivity display control's View→Use Native Image Projection menu item to switch to the radar projection.
   • Zoom in and out
9. You can also change the time animation steps to be more regular.
   • Open the Time Animation Properties dialog.
   • Select the Define Animation Times tab and then select the Define your own list of times option.
     
     
   • By default, the time animation is automatically determined from the times of each dataset used in the display. You can change the default using this widget.
   • For the End Time select the Relative to Start Time option.
   • Click the edit icon () to the right of the Offset: label to set the offset from the start time. Set the offset to be 1 hour from the start time by typing 1 in the hours box, then click OK.
   • Set the Interval to be 10 minutes and set the Round to option to 5 minutes.
   • Click Apply and notice how this changes the time steps in the display.
   • Try other combinations and see what effect they have.
10. Remove all displays.

1. Use the Displays→Maps and Backgrounds→Add Background Image menu to load in the background image control. The default view is the Blue Marble image from NASA.
2. Change the layer type for this control to Shaded Relief.
3. From the Field Selector window, select the DVN (Base Reflectivity Tilt 1) data source.
4. Select the Image Sequence field in the Fields panel, and select Image display in the Displays panel. In the Times panel, make sure the Use Default menu item is selected and then click the Create Display button to load in the images.
5. Toggle the images as you did above and use different layers in the control. We will look at this control in more detail later.
6. Remove all displays.

Unidata IDV Workshop for version 6.3 > Accessing and Displaying Data > Displaying Satellite and Level III Radar Imagery