William Atkins
Friday, 28 August 2009 18:56
Science -
Climate
Page 2 of 2
Dr. van Dijk added,
“If this technology had been available to us in the mid-1990s, the onset of dry conditions could have been detected earlier."
And,
"The results of the study underscore the importance of good water information for water resource planning.”
The CSIRO article also said,
“The data also reveals that the impact of the drought on Australia’s current water resources is broadly consistent with both the historical trend and climate change predictions.”
Dr. van Dijk commented on the historical record of water in Australia.
He states,
“Parts of Australia have had record low rainfall the last several years, but our records aren’t very long and the drought may still be within natural limits."
And,
"What makes the situation appear so much worse is that the sixties and seventies were quite wet. That’s also when we started capturing river flows in large reservoirs for our growing cities and irrigated agriculture. In retrospect it appears we have become over-reliant on what is now looking like ‘bonus’ rainfall during that time.”
A figure of water variability (increases and decreases) across Australia is shown at
ScienceImage: Water scarcity started 15 years ago.