Soil Sciences

Imaggeo on Mondays: How erosion creates natural clay walls

Olivia Trani October 8, 2018

Once there was a road...the clay wall. Credit: Chiara Arrighi (distributed via imaggeo.egu.eu)

The badlands valley of Civita di Bagnoregio is a hidden natural gem in the province of Viterbo, Italy, just 100 kilometres from Rome. Pictured here is the ‘wall,’ one of the valley’s most peculiar features, where you can even find the wooden structural remains of a trail used for agricultural purposes in the 19th and 20th centuries. The photograph was taken by Chiara Arrighi, a post-doc research a ...[Read More]

GeoTalk: Severe soil erosion events and how to predict them

Olivia Trani July 20, 2018

Urban gully in Kinshasa, Democratic Republic of Congo, May 2018. Credit: Matthias Vanmaercke.

Geotalk is a regular feature highlighting early career researchers and their work. In this interview we speak to Matthias Vanmaercke, an associate professor at the University of Liège in Belgium who studies soil erosion and land degradation across Europe and Africa. At the EGU General Assembly he received the 2018 Soil System Sciences Division Outstanding Early Career Scientists Award. Thanks for ...[Read More]

Imaggeo on Mondays: Namibia’s mysterious fairy circles

Olivia Trani July 9, 2018

The mysterious fairy circles. Credit: Hezi Yizhaq (distributed via imaggeo.egu.eu)

The grassy Namibian desert is pock-marked with millions of circular patches of bare earth just like these shown in the picture between linear dunes. Viewed from a balloon, they make the ground look like a moonscape. Commonly known as fairy circles, the patches range from two to 12 metres across and appear in a 2000 kilometre strip that stretches from Angola to South Africa. For many decades, the f ...[Read More]

Imaggeo on Mondays: Arctic cottongrass in Svalbard

Olivia Trani July 2, 2018

Eriophorum scheuchzeri spp. arcticum. Credit: Gunnar Mallon (distributed via imaggeo.egu.eu)

In the High Arctic, where vegetation is limited in height, cottongrass stands out as some of the tallest plant species around. This photo shows a wispy white patch of Arctic cottongrass growing amongst other tundra vegetation in the Advent river floodplain of Adventdalen, a valley on the Norwegian archipelago island Svalbard. Svalbard is of particular scientific interest as it is a relatively warm ...[Read More]