Tagged: Groundwater

Rainfall recharge to groundwater - Waiology

Waiology Jan 17, 2012

Guest post by Paul White, Senior Groundwater Scientist at GNS Science. Groundwaters are very important water resources in many New Zealand regions — important because they are used for water supplies (urban and rural) and because they supply flow to many springs, streams, rivers and wetlands. The two major inflows to groundwater are from rainfall and from surface … Read More

Recent NZ research from climate change to tussock | Journal of Hydrology (NZ): 50(2) - Waiology

Waiology Nov 24, 2011

By Daniel Collins For those of you who don’t receive New Zealand’s own hydrology journal, or for those who want to save some time, here’s an overview of this month’s edition — the journal’s 100th. 1. Barry Fahey (Landcare Research) et al. use their water balance model, WATYIELD, to assess whether tussock in Otago’s uplands can really intercept … Read More

The importance of groundwater - Waiology

Waiology Nov 14, 2011

By Tiejun Wang Groundwater is one of the most important natural resources in New Zealand, which by one estimate accounts for about 80% of the water present at any one time across and beneath the country. According to a 2010 review of water allocation [2], the number of groundwater consents accounts for 68% of all national consents. In … Read More

The low down on groundwater - Waiology

Waiology Nov 10, 2011

By Daniel Collins Several posts back I reported on a public perceptions survey that showed that New Zealanders seem to know less about groundwater and wetlands than about rivers and lakes. (Hydrogeologist Michael Campana, OSU, lamented a similar bias towards surface waters among US and international water resource management circles.) I expect this is because rivers and lakes … Read More

Welcome Flat springs cooler after July earthquake - Crikey Creek

Daniel Collins Dec 09, 2009

The 7.8 magnitude earthquake that shook Fiordland on July 15 was the largest in New Zealand since 1931. It caused power outages and landslides, but fortunately only minor damage and no fatalities. Land around the epicentre was uplifted by a metre, and the South Island twisted so that Dunedin moved 1 cm closer to Australia. What GNS scientists Simon Cox … Read More

MfE groundwater report: “Propaganda” or misunderstood? - Crikey Creek

Daniel Collins Oct 22, 2009

The Ministry for the Environment released a report yesterday on New Zealand’s groundwater quality, prepared by Geological and Nuclear Sciences Ltd. Today, I read in the Christchurch Press that the report concludes that “groundwater quality has no significant relationship with land use”. What’s more, Green Party co-leader Russel Norman called it “propaganda”. Bold claims indeed. Fortunately we can … Read More

  • 1
  • 2