Use the Select Points tool to define an Edit Area by hand. For more information see the section Define an EditArea by Hand in the GFE Training Guide.
Select an Edit Area that includes four different forecast zones of your choice.
There are several way to accomplish this, but the easiest is to select it from one of the cascading menus found in the Main Menu bar, EditAreas->Zones->[zone name]. Note that to accumulate the edit areas, you will need to put the Spatial Editor into UNION mode by selecting the "+" from the button labelled "=". For more detailed information, see the section Loading Named Edit Areas in the GFE Training Guide.
Select an Edit Area based on a given elevation.
Unless your site manager has already set up edit areas based on elevation, you will need to do this from the Edit Area Query Dialog. Select the button labelled "?" on the tool bar. The Edit Area Query Dialog will appear. Next enter your query using the buttons such as, "Topo > 4000" (adjust the value based on your topography). Once you have defined the query select "Submit". The query will execute and a new edit area will be selected that matches the query you entered. For more information on queries, see the section, Edit Area Queries in the GFE Training Guide. For more infomation on the dialog, see the section, EditArea and Query Dialog in the Button Bar Dialogs document.
Select an Edit Area that includes locations where the dew point is above a value that you specifiy.
This task is similar to the one above except that
this time you are using a different element to define the area.
Make sure that the dew point weather element
is loaded into the GFE. Open the query dialog (by selecting the button
labelled "?") and define your query such as, "Td
> 45". Then select "Submit". You
should see a new edit area displayed in the Spatial Editor that corresponds
to your query. Note that when you animate or step frames the query
is re-run so that the edit area always reflects the currently displayed
grid. For more information on queries, see the section, Edit
Area Queries in the GFE Training Guide. For more infomation on the
dialog, see the section, EditArea
and Query Dialog in the Button Bar Dialogs document.
Select an Edit Area that covers locations with a certain type of weather.
For this task, load the "Wx" weather element and open the query dialog by selecting the button labelled "?". Next define your query such as mask(Wx, ":RW:") and click the submit button. The new edit area should match your query. For more information on queries, see the section, Edit Area Queries in the GFE Training Guide. For more infomation on the dialog, see the section, EditArea and Query Dialog in the Button Bar Dialogs document.
Another way to select areas of the same weather is to use the option available from the MB3 pop-up menu, "Select Homogeneous Area". Selecting this option will create a new edit area defined by the type, coverage and intensity of whatever weather value the cursor is over when you execute "Select Homogeneous Area". For more information, see the section, Select Homogeneous Area based on Value in the GFE Training Guide.
Save an Edit Area in a Quick Set button, clear the Edit Area and restore it with the same Quick Set button.
For this task you use the Quickset buttons located in the far right section of the button bar. Create an edit area either by hand, from the Main Menu or a query. Then select "Q" followed by any one of the numbers. Now clear the edit area by pressing the button labelled "C" and then select the same number button that you did earlier. Note that the edit area that you just cleared has been redisplayed. This operation works for edit area queries as well. Saving a query under a QuickSet entry returns as a query when it is recalled. When an edit area query is loaded and executed it always runs on the currently displayed grid. See the section in the GFE Training Guide, Saving Edit Areas as QuickSets for more information
Zoom the Spatial Editor so that only a portion of your CWA is displayed.
There are two different ways to zoom the Spatial Editor display. One is to MB3 press and select the "Zoom to" cascade menu and select one of the numbered options. These numbers represent the final width of the display (in kilometers) after the display zooms.
A short cut allows you to zoom in and out using the mouse buttons. Press and hold the SHIFT key on the keyboard and click MB2 anywhere in the Spatial Editor display. Note that the display zooms in one level. Zoom in further by clicking MB2 a few more times. Now zoom back ou by again holding the SHIFT key and clicking MB1.
For more information on zooming the Spatial Editor
display see the section, Zooming
(enlarging) the Spatial Display in the GFE Training Guide.