Stations

Flood flows on the Buller River this month were the largest of any river in Aotearoa New Zealand in almost 100 years, NIWA measurements show.

The Murchison mountains SIN station is located at 1140 m elevation in Fiordland National Park. Because of the low elevation, snow often comes and goes throughout the winter season. Snow records start in 2012.

Castle Mount electronic weather station is at 2000 m elevation on an exposed site above the Milford Track. Records here begin in 2012. Strong winds limit snow accumulation during the winter.

The Mount Larkins electronic weather station is located east of the main divide near Glenorchy and Lake Wakatipu at 1900m elevation.

Mueller Hut electronic weather station is at 1818m elevation and located in Mount Cook/Aoraki National Park. This site also measures solic precipitation and solar radiation. This is the deepest (~3m) of all the snow and ice network sites and records at this site start from 2010.

The Mount Philistine site is located at 1655m elevation on the Main Divide near Arthurs Pass and Rolleston Glacier. It is a high precipitation area and snow records here start in 2010.

Mahanga electronic weather station (EWS) is on Mount Mahanga in Tasman. It is at 1940 m elevation near the Nelson Lakes. It's our most northerly South Island site and our snow records here date back to 2009.

A few drops of rain can go a long way. Campbell Gardiner explains.

The Whatawhata Integrated Catchment Management (ICM) Project is the longest continuously monitored before-after-control-impact (BACI) catchment-scale study in New Zealand.

NIWA has established a network of high elevation electronic weather stations to provide a solid basis to understand seasonal patterns and long-term changes to seasonal snow and ice in alpine regions of New Zealand.

Daily CO2 measurements from NIWA’s atmospheric monitoring station at Baring Head.

NIWA discusses, in depth, this year's most asked question—what is happening to our fresh waterways?