The hard concrete surfaces that characterise New Zealand towns and cities are barely likely to register as a problem with most people. But they're never far from the minds of our urban water researchers.
How long would it take to count all the grains of sand in the world? About 5000 seconds – a little over an hour and 20 minutes – if you had a Cray XC50. NIWA has just installed one at the High Performance Computing Facility in Wellington.
Every year NIWA carries out numerous marine surveillance missions, surveys at ports and harbours around the country. Their divers are looking for the pests that have hitched a ride to New Zealand waters and are capable of destroying our unique ecosystems and shellfish industry.
Four seasons with a little bit of everything.
It started with the bummer summer… then came the fires, rain, flooding and a very weird November.
But it’s all in a year of weather as NIWA wraps up the seasonal highlights.