Tuesday, 09 February 2010 13:24

East Antarctica is taking WA's rain


Recent snowfall studies in Antarctica suggest climate change has taken rainfall away from Western Australia to the benefit of the Law Done in East Antarctica.

Glaciologist Dr Tas van Ommen, of the Australian Antarctic Division yesterday published findings which seem to demonstrate the breaking of a strong correlation between increased snowfall at Law Dome in East Antarctica and matched decreased rainfall in south-west Western Australia (and vice versa).

The published graph clearly shows a very strong inverse match between rises and falls in snow at Law Dome and rainfall in south-west Western Australia for the past 100 years.

Up until 1970.

At which point, Dr van Ommen observes, there is a breaking of this close coupling.

According to Dr van Ommen, "Since the late 1960s there has been a 15-20% decline in winter rainfall in south-west Western Australia, and at the same time there has been a 10% increase in snowfall at Law Dome."

Van Ommen continues, "In the past three decades the strength of persistent high and low pressure systems off southern Australia have increased, directing more warm, moist air south towards the coast of Antarctica and dry, cold air north in winter."

He then concludes that, "This does not appear to be in the range of natural variability: we can see from the ice core that an event like the increased snowfall at Law Dome would only come along once every 38,000 years without some change in climate patterns and, given the connection we see with Western Australia, it would suggest that the drought is also not a natural event."

Extrapolating from this, Dr van Ommen concludes that human-induced climate change is the most likely cause, the observed changes being derived from either reductions in ozone or increased levels of atmospheric carbon dioxide.

Clearly this is just one small study, but it certainly adds to the weight of evidence in support of human-induced climate change.


As part of our Lead Machine Methodology we will help you get more leads, more customers and more business. Let us help you develop your digital marketing campaign

Digital Marketing is ideal in these tough times and it can replace face to face marketing with person to person marketing via the phone conference calls and webinars

Significant opportunity pipelines can be developed and continually topped up with the help of Digital Marketing so that deals can be made and deals can be closed

- Newsletter adverts in dynamic GIF slideshow formats

- News site adverts from small to large sizes also as dynamic GIF slideshow formats

- Guest Editorial - get your message out there and put your CEO in the spotlight

- Promotional News and Content - displayed on the homepage and all pages

- Leverage our proven event promotion methodology - The Lead Machine gets you leads

Contact Andrew our digital campaign designer on 0412 390 000 or via email andrew.matler@itwire.com



Security requirements such as confidentiality, integrity and authentication have become mandatory in most industries.

Data encryption methods previously used only by military and intelligence services have become common practice in all data transfer networks across all platforms, in all industries where information is sensitive and vital (financial and government institutions, critical infrastructure, data centres, and service providers).

Get the full details on Layer-1 encryption solutions straight from PacketLight’s optical networks experts.

This white paper titled, “When 1% of the Light Equals 100% of the Information” is a must read for anyone within the fiber optics, cybersecurity or related industry sectors.

To access click Download here.


David Heath

David Heath has had a long and varied career in the IT industry having worked as a Pre-sales Network Engineer (remember Novell NetWare?), General Manager of IT&T for the TV Shopping Network, as a Technical manager in the Biometrics industry, and as a Technical Trainer and Instructional Designer in the industrial control sector. In all aspects, security has been a driving focus. Throughout his career, David has sought to inform and educate people and has done that through his writings and in more formal educational environments.



Recent Comments