Rainfall in many irrigated regions of NZ is uniformly distributed (in time) and, theoretically, irrigations could be scheduled based around forecast rainfall. However, in the absence of easy access to reliable rainfall forecast information, farmers seldom irrigate based upon forecast, often irrigating right before significant rainfall events, resulting in the loss of water and nutrients from the root-zone, either by drainage and leaching, or via overland flow.
Increasing interest in citizen science is benefiting environmental monitoring. Citizen data supplements professional data, meaning more data collection overall.
NIWA and Waipa District Council are working together to demonstrate the use of enhanced pond systems (EPS) to achieve cost-effective, efficient wastewater treatment.
It’s now almost ten years since blooms of the stalked diatom Didymosphenia geminata – commonly known as didymo, or “rock snot” – were first discovered in the Waiau River, Southland.
24 November 2014 to 28 November 2014
A joint symposium of the New Zealand Hydrological Society, New Zealand Freshwater Sciences Society and the IPENZ Rivers Group.