Using the Map

The main features of the map are as follows:

Navigating the map

There are several ways to move around the interactive map.

  • To pan (slide), use your mouse to click and drag, or the arrow keys on your keyboard.
  • To zoom in or out, use the  + zoom button to view a smaller area, and the  – zoom button to zoom out to see a larger area. Alternately, you can zoom using the mouse scroll wheel, or the + and  keys on your keyboard numeric key pad.
  • To zoom the map to its initial extent, hit F5 to reload the web page
Selecting a layer

To view different map layers, choose from the options in the selection boxes on the left side of the map. When you choose from these boxes, the map will automatically update.

  • Crop selection – change the crop for which data is displayed.
  • The Data Layer selection allows you to choose from different yield layers. See the Glossary for explanations of these layers.
  • The Year or Decile options:
    • Select ‘Year’ to view maps for the average of all years, or for individual years.
    • Select ‘Decile’ to view maps showing the yield and yield gaps divided into ten equal classes, with Decile 1 representing the lowest 10% of yields, and Decile 10 the highest 10% of yields.
  • Use the Area detail selection to see the map data at different levels of detail. Data can be displayed for SA2s, GRDC Subregions and Regions.

How to use the Compare My Farm tool

The Compare My Farm tool is intended to allow a comparison of an individual farm’s performance with both the water-limited yield potential (Yw) and the average farm yields in the local SA2, taking into account the different soil types on the farm.

1. Open the Compare My Farm tool

  • Make sure the map is displaying Statistical Local Areas (SA2s), not GRDC Subregions or Regions.
  • Locate and click on the SA2 to compare with (zoom and pan the map to find the SA2)
  • Click on the SA2 to display its details. The details window will open from the selected SA2.
  • In the SA2 details box, click the Compare My Farm button.

Note: The irrigation icon indicates SA2s in which irrigated cropping may affect actual yields estimates. This is a warning that the Yield Gap is probably under estimated in this SA2.

The main features of the Compare My Farm tool are:

2. Choose the period to compare.

  • From the Year drop-down at the top of the tool, select a year (or the 15 year average, 2000 to 2014) to compare against.

3. Enter farm specific information for each soil type that grows the selected crop on your farm

  • If unsure about the soil types listed, click the soil name to learn more.
  • For each of the soil types, enter the area of that soil type as a percentage of the farm.
  • For each of the soils, enter the actual yields obtained for the selected year or your 15 year average yields.
  • As you enter your data yields, yield gaps and relative yields will be automatically calculated.

4. To close the Compare My Farm tool, click on the map or click the “X” at the top right corner of the tool


Note: This tool is for your own comparison only, and details you enter here will not be recorded or retained.