Tagged: glaciers

A bird’s eye view of New Zealand’s changing glaciers - Guest Work

Guest Author Jun 08, 2018

Andrew Lorrey, National Institute of Water and Atmospheric Research; Andrew Mackintosh, Victoria University of Wellington, and brian.anderson@vuw.ac.nz, Victoria University of Wellington Every March, glacier “watchers” take to the skies to photograph snow and ice clinging to high peaks along the length of New Zealand’s Southern Alps. This flight needs to happen on cloud-free and … Read More

Ice ages led to ‘explosive’ diversity in Kiwi species - News

John Kerr Sep 01, 2016

Ancient walls of ice separating kiwi populations have left their mark in the DNA of New Zealand’s most iconic species. A new study published this week in PNAS has revealed the enormous impact historic cold snaps had on the evolution of kiwis. Researchers based in Canada, in collaboration with Department of Conservation scientists, examined a database of kiwi DNA across the geographic … Read More

Blink and its gone – spectacular time-lapse of ice retreat at Fox Glacier - Hot Topic

Gareth Renowden Feb 26, 2015

This spectacular time-lapse video1 captures the dramatic retreat of the Fox Glacier in Westland over the last year — 300 metres between January 2015 and January this year. As the ice retreats, the hillside becomes unstable and collapses down into the valley. To get a sense of the scale, you can see people watching from […] … Read More

New Zealand’s Southern Alps have lost a third of their ice - Hot Topic

Gareth Renowden Jul 29, 2014

This article by Jim Salinger, University of Auckland; Blair Fitzharris, University of Otago, and Trevor Chinn, National Institute of Water and Atmospheric Research, was first published at The Conversation. The photo at left shows the calving face of the Tasman Glacier in Dec 2013. A third of the permanent snow and ice of New Zealand’s […] … Read More

Messages from a sizzling continent: Salinger on the Aussie heatwave - Hot Topic

Gareth Renowden Jan 20, 2013

This op-ed by climate scientist Jim Salinger first appeared in print editions of the New Zealand Herald last Tuesday. Global warming is not a phenomenon for future generations to deal with: it has arrived. And more frequent heat waves and climate extremes are part of this phenomenon. As I watch from my summer roost in [...] … Read More

Agreement polar ice sheets are melting - Open Parachute

Ken Perrott Dec 02, 2012

Many climate scientists felt the conclusions on effects of global warming in the 2007 IPCC review were too conservative. One reason was the estimation of likely melting of ice sheets and its effects. Problem was that there was insufficient knowledge … Continue reading → … Read More

Bad news but great pictures: dating NZ’s shrinking glaciers shows strong link between ice loss and CO2 increases - Hot Topic

Gareth Renowden Sep 13, 2012

Here’s a superb video from the Department of Education at the American Museum of Natural History, showing how NZ and US scientists are examining the precise timing of glacier advances and retreats in the Mackenzie country around Lake Pukaki using surface exposure dating. Like all good geologists they use big hammers and small explosives to [...] … Read More

Greenland’s extraordinary summer: melting records and ice island setting sail - Hot Topic

Gareth Renowden Jul 26, 2012

July has been an amazing month in Greenland. The Petermann Glacier has given birth to another huge ice island — taking its terminus further back up its fjord than at any time in the last 100 years (at least), record high temperatures have been recorded at the summit of the ice sheet at 3,200 meters, [...] … Read More

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