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

 

Tax: GST Threshold For Online Purchases Won't Lower Before 2018

The government wants to lower the threshold on online purchases which qualify for GST from mid-2018, but says more work is needed and there will be no change without public consultation. More>>

ALSO:

North Canterbury: Government Extends Drought Classification

The government has extended a drought classification for the eastern South Island until the end of the year, meaning the area will have officially been in drought for almost two years, the longest period for such a category. More>>

ALSO:

Negotiations Fail: Christchurch Convention Centre Build To Proceed Without PCNZ

After protracted negotiations, the government has ditched the construction consortium it picked to build Christchurch's replacement convention centre, which it now anticipates delivering at least two years behind the original schedule. More>>

ALSO:

Other Centres' Convention Centres:

Ruataniwha: Greenpeace Launches Legal Challenge Against $1b Dam Plan

Greenpeace NZ is launching a legal challenge against a controversial plan to build a dam that’s set to cost close to $1 billion and will pollute a region’s rivers. More>>

ALSO:

Inequality: Top 10% Of Housholds Have Half Of Total Net Worth

The average New Zealand household was worth $289,000 in the year to June 2015, Statistics New Zealand said today. However wealth was not evenly distributed, with the top 10 percent accounting for around half of total wealth. In contrast, the bottom 40 percent held 3 percent of total wealth. More>>

ALSO:

What Winter? Temperature Records Set For June 20-22

The days around the winter soltice produced a number of notably warm tempertaures. More>>

Conservation Deal: New Kākāpō Recovery Partnership Welcomed

Conservation Minister Maggie Barry says the new kakapo recovery partnership between DOC and Meridian Energy is great news for efforts to save one of New Zealand’s most beloved birds. More>>

ALSO:

Get More From Scoop

 
 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news