Lets look over the various items on the SAGA Explorer tool bar.
Listed from left to right:
File folder
This contains the GRIB files that you have downloaded as well as a section of sample files for you to work with.
You will notice that of the files you have downloaded there is the one combined file (labeled ‘GRIB_date_x.grb’). The other single product files start with the model and type of file in the name.
Refresh tool
Should your images need to be refreshed you can tap this.
View tool
This will allow you to turn on and off the following:
When this feature is on you can reposition the graph by dragging it to a different location on the screen. To change what parameters are being referenced select the title and then select what you want from the available choices.
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Curser Position indicator
This is displayed near the top of your screen showing the lat/lon of the cursor as well as the range and bearing from your home location to the cursor. This can also be turned on an off from the Preferences screen.
This displays a box just above your cursor showing the lat / lon and values for the data that is being displayed on the map at that position. This can also be turned on an off from the Preferences screen.
When this is on your home location is updated using data available from your device and displayed on the map.
Zoom
Graphs
The route finder profile is a plot of the values of the main weather parameter located on a great circle line between two arbitrary points on the chart. You can move either points in any direction by holding the left mouse button and dragging to the desired new point. The route finder profile works for both single frame and animated charts.
The time data profile is a plot of the values of the main weather parameter located at the mouse position through time. As you move your mouse position, a new time plot is displayed. The time data profile works for multiple time frame GRIB charts.
The route finder profile is a plot of the values of the main weather parameter located on a great circle line between two arbitrary points on the chart. You can move either points in any direction by holding the left mouse button and dragging to the desired new point. The route finder profile only works for multi frame charts.
SAGA Explorer provides global access to sub-surface temperature data down to 1000 meters. These are individual files you can download. It also offers a Thermocline product which combines all those layers into one file so you get a complete picture of subsurface conditions around you. The Thermocline tool shows you the depth of the mixed layer in the ocean.
Map Outlines
Here you can turn on and off various features of the map display.
Plotting GRIBs
This menu allows you to turn on and off the various GRIB data that you currently have layered on your screen.
Layers Display
SAGA can download and simultaneously layger GRIB data, coastal/offshore/high seas text forecasts, Nexrad radar imagery. and Marine Buoy data. GRIB data is always displayed as your 'base' layer. This Layers Display is where you decide what layers in addition to GRIB you want to see for a particular analysis.
Select Frame
This menu allows you to go directly to a time frame in the file you are viewing.
Player controls
These tools allow you to control the animation of the GRIB data frames.
View screen icons video tutorial