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."

ENDS

© Scoop Media

 
 
 
 
 
Business Headlines | Sci-Tech Headlines

 

Fast Track: TPP Negotiations Set To Accelerate, Groser Says

Negotiations for the Trans-Pacific Partnership will accelerate in July, with New Zealand officials working to stitch up a deal by the month's end, according to Trade Minister Tim Groser. More>>

ALSO:

Floods: Initial Assessment Of Economic Impact

Authorities around the region have compiled an initial impact assessment for the Ministry of Civil Defence, putting the estimated cost of flood recovery at around $120 million... this early estimate includes social, built, and economic costs to business, but doesn’t include costs to the rural sector. More>>

ALSO:

Food: Govt Obesity Plan - No Tax Or Legislation

Speaking to Q+A’s Corin Dann this morning, health minister Jonathan Coleman said tackling obesity was at the top of the Government’s priority list, but there was “no evidence” a sugar tax worked, and further regulation was unnecessary. More>>

ALSO:

Treasury Docs On LVR Policy: Government Inaction Leads To Blurring Of Roles

The Treasury wouldn’t have had to warn the Reserve Bank to stick to its core functions if the Government had taken prompt and substantial measures to rein in skyrocketing Auckland house prices, Labour’s Finance spokesperson Grant Robertson says. More>>

ALSO:

Final EPA Decision: Tough Bar Set For Ruataniwha Dam

Today’s final decision by the Tukituki Catchment Board of Inquiry is good news for the river and the environment, says Labour’s Water spokesperson Meka Whaitiri. “Setting a strict level of dissolved nitrogen in the catchment’s waters will ensure that the dam has far less of an impact on the Tukituki river." More>>

ALSO:

"Don’t Give Up":
End Of Kick-Start Hits KiwiSaver Enrolments

ANZ said new enrolments for the ANZ KiwiSaver Scheme had dropped by more than 50% since the Government announced an immediate end to the $1,000 KiwiSaver kick-start incentive in the Budget last month. More>>

ALSO:

Get More From Scoop

 
 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news