Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search


Droughts part of longer trend toward more anticyclones

Droughts part of longer trend toward increasing number of anticyclones

March 6, 2013

Extensive droughts across parts of New Zealand are part of long term trend towards increased frequency of anticyclones over New Zealand, a University of Canterbury (UC) weather expert said today.

Drought has been declared in the Auckland region, Northland, Waikato, Bay of Plenty, Hawke’s Bay, Coromandel and Taupo.

UC meteorologist Professor Andrew Sturman said anticyclones are generally associated with weaker winds, clearer skies and very little rainfall.

"This increase in their occurrence fits in with observed shifts in the major atmospheric circulation zones of the southern hemisphere, which is reflected in an observed southward shift in atmospheric circulation zones.

"Because of the associated clear skies, the increase in occurrence of anticyclones is responsible not only for drier conditions in many areas, particularly in summer, but also more frosts in some parts of the country at other times of the year.

"This all illustrates how complex climate change can be globally. People are predicting a general warming trend often associated with increased storminess and rainfall in some areas. But regionally and locally the patterns can be made more complicated by New Zealand’s location relative to these major atmospheric circulation systems and the effects of our complex terrain that cause regional variations."


© Scoop Media

Business Headlines | Sci-Tech Headlines


Hepatitis A Link: Increased Surveillance Of Imported Frozen Berries

The Ministry for Primary Industries (MPI) Director General has issued a statement warning of a potential risk associated with imported frozen berries following four human cases of Hepatitis A thought to be linked to packaged imported frozen berries. More>>


Shocking Dairy Footage: MPI Failing Our Animals And Damaging Our Reputation

Greens “Nathan Guy needs to urgently look into how his ministry is enforcing animal welfare standards, how these appalling incidents happened under its watch and what it’s going to do prevent similar incidents happening again in the future." More>>


Land & Water Forum: Fourth Report On Water Management

The Land and Water Forum (LWF) today published its fourth report, outlining 60 new consensus recommendations for how New Zealand should improve its management of fresh water and calling on the Government to urgently adopt all of its recommendations from earlier reports. More>>



Welcome Home: Record High Migration Stokes 41-Year High Population Growth

New Zealand annual net migration hit a new high in October as more people arrived from than departed for Australia for the first time in more than 20 years. More>>


Citizens' Advice Bureau: Report Shows Desperate Housing Situation Throughout NZ

CAB's in-depth analysis of over 2000 client enquiries about emergency accommodation shows vulnerable families, pregnant women and children living in cars and garages, even after seeking assistance from the Ministry of Social Development and Housing New Zealand. More>>


Get More From Scoop

Search Scoop  
Powered by Vodafone
NZ independent news