Tracking water age in hydrological models
Building a hydrological model
Hydrological models enable us to predict river flows and floods,
Freshwater Update 54, July 2012
27 July 2012
Welcome to Freshwater Update 54. This issue features some of the latest work from our Freshwater and Estuaries teams, Water Quality maps and information and River flow maps for Autumn.
Latest news from the centre includes: Float your boat! Scientists use hi-tech miniature Q-boat to measure river flows
NIWA initiates new information system for urban stormwater quality
Urban runoff is a major source of contamination for streams and estuaries, and can result in the accumulation of metal and organic contaminants in sensitive environments.
Water quality maps and information, April to June 2012
River temperatures April to June
Autumn river water temperatures were mostly in the range 8 to 16oC and tended to be slightly higher in the north and at lower altitude.
River flows - April to June 2012
River flows - April to June 2012
The three month picture (on the right) shows the extreme dryness across most of the country, and the after effect of a wet April over East Cape and Hawkes Bay.