GeoLog

Imaggeo on Mondays: Nor’Wester in the Southern Alps of New Zealand

Laura Roberts-Artal July 24, 2017

Find a new way . Credit: Stefan Winkler (distributed via imaggeo.egu.eu)

Stephan Winkler’s 2017 Imaggeo Photo Contest finalist photo showcases an unusual weather phenomenon… The image shows a typical weather situation in the Southern Alps of New Zealand with a moist, westerly airflow pushing over the Main Divide [which separates the water catchments of the more heavily populated eastern side of the island from those on the west coast] to create a typical foehn wind [dr ...[Read More]

Imaggeo on Mondays: Sediments make the colour

Eva Eibl July 17, 2017

Sediment makes the colour . Credit: Eva P.S. Eibl (distributed via imaggeo.egu.eu)

Earth is spectacularly beautiful, especially when seen from a bird’s eye view. This image, of a sweeping pattern made by a river in Iceland is testimony to it. The picture shows river Leirá which drains sediment-loaded glacial water from the Myrdalsjökull glacier in Iceland. Myrdalsjökull glacier covers Katla, one of Iceland’s most active and ice-covered volcanoes. A high sediment load (the suspen ...[Read More]

GeoSciences Column: Is smoke on your mind? Using social media to assess smoke exposure from wildfires

Laura Roberts-Artal July 14, 2017

A wildfire in the Bitterroot National Forest in Montana, United States . Credit: John McColgan – Edited by Fir0002 [Public domain], distributed via Wikimedia Commons.

Wildfires have been raging across the globe this summer. Six U.S. States, including California and Nevada, are currently battling fierce flames spurred on by high temperatures and dry conditions. Up to 10,000 people have been evacuated in Canada, where wildfires have swept through British Columbia. Closer to home, 700 tourists were rescued by boat from fires in Sicily, while last month, over 60 pe ...[Read More]

Imaggeo on Mondays: Tongue of a small giant

Antonello Provenzale July 10, 2017

Tongue of a small giant . Credit: Antonello Provenzale (distributed via imaggeo.egu.eu).

In a world where climate change causes many mountain glaciers to shrink away, bucking the ‘melting’ trend is not easy. In today’s post, Antonello Provenzale, a researcher in Italy, tells us of one glacier in the Alps which is doing just that. Mountain glaciers are retreating worldwide, with the possible exception of the Karakoram area. For most glaciers, ablation (ice melt) durin ...[Read More]