Handbook for Irrigation of Wine Grapes in South Africa

Figure 8.7

Figure 8.8 FIGURE 8.7. Map showing distribution of weather stations for which long term mean E p is available. Users can select some topo cadastral features to help locate the nearest weather station.

Figure 8.8

FIGURE 8.8. In order to select a weather station, first select the area closer to where the farm is located, and then select the station as indicated on the screen. Resting the cursor on a weather station will show its identity. The weather station marker will change colour upon selection.

244 CHAPTER 8 – PRACTICAL IRRIGATION SCHEDULING