Navigate to near the bottom and there is another clickable link to information about an upcoming community forum entitled "Our changing environment - the risks and challenges of living with natural hazards" which is happening Saturday 15 March, 9.30am-4.30pm at the Salvation Army Hall, 250 Colombo Street, Sydenham.
Of particular interest will be the part about the District Plan review in relation to natural hazards.
(Edited to add the BBCode to make the URL clickable...)
You're looking at the day before yesterday, The white patches are water within clouds, the lines represent air movement, click on the water to see the volume in kg/m2 (the mass of water in a column between the ground and the stratosphere) These storms , including last weeks hail storm come from the same system. Winter will be interesting, we may get the same polar vortex that has been seen in the northern hemispheres winter, which blew cold air at 450km/h over canada and the Us. How many of these 100 year storms have you heard of in the last 5 years, semantically it's a new term of course but the guld stream ocean currents are slower than they ever have been and the earths magnetic field is 15% weaker than it was 100 years ago. Scientists are only just starting to consider the effect of the weakening magnetosphere but this could be a significant factor. Not suggesting CO2 isn't a significant factor but a weaker magnetsphere allows more of the suns energy in.
When I was a kid I lived a couple of streets over from the flooding in the 'Flockton Basin' It has always had a very high water table and the quakes having sunk the ground has made it even worse.
Can remember times where if you had a dip in your lawn you could have water sitting there for days. It didn't normally flood any houses though.
The issue you have with Christchurch is that when it was settled a protected port was the main criteria which you get with Lyttleton. If you were creating a city in the area now you would put it around Waipara.
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