ACT State of the Environment 2007

Indicator: Weather – Evaporation

See also: | Rainfall | Temperature | Sunshine | Relative humidity | Wind |

Figure 1 shows the effects of the drier and warmer conditions experienced over the reporting period, with generally above average conditions and 2006, in particular, having increased evaporation. Again most months during this period recorded either close to or above average evaporation, with higher evaporation occurring during 2006, especially during autumn and spring.

Figure 1: Trends in mean daily evaporation at Canberra International Airport 2003–07

Three graphs showing trends in mean daily evaporation at Canberra International Airport 2003 to 2007

Source: Bureau of Meteorology

Long-term trends

There appears to be little change in evaporation over the long term, however, there does appear to have been an increase over the last few years, reflecting both the below average rainfall and the increase in temperature experienced over this period (Figure 2).

Figure 2: Long-term trends in mean daily evaporation at Canberra International Airport, 1967–2007

Graph showing long-term trends in mean daily evaporation at Canberra International Airport, 1967 to 2007

Source: Bureau of Meteorology

living sustainably

Click to expand sitemap