stress-driven

Geohazard information for the masses

Category: Projects (page 1 of 5)

Do glaciers really do all the work? Perhaps not. Check out our new paper to find out why.

Recently, my co-authors and I published a rather controversial article entitled ‘Signatures of Late Pleistocene fluvial incision in an Alpine landscape‘ in Earth and Planetary Science Letters (Volume 483, Leith et al., 2018). In this post we summarize the main outcomes, and look into a part of the backstory that never made it to print. […]

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Catch us at the Swiss Geoscience Meeting, 17 – 18 November

This week the Swiss Geoscience Meeting will be hosted by the Snow and Avalanche Research SLF and the Platform Geosciences of the Swiss Academy of Sciences in Davos, Switzerland. The meeting offers a great chance to keep in touch with scientists from across the country with broad interdisciplinary interests. This year we’ll be presenting work from an environmentally-driven […]

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MSc / BSc opportunity: A new time-dependent limit-equilibrium model to understand progressive failure in bedrock slopes on the Grimsel Pass

Undercutting of rock slopes by either (river or glacier) erosion or highway construction commonly leaves overhanging unstable blocks that collapse after a period of time, endangering people and property, and changing the local geomorphological environment. When bedding or foliation dips steeply out of the slope, such failures often lead to an ‘unravelling’ of the rock […]

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A compilation of meteorological observations, pore water pressure measurements, and the model results.

A new paper describing a simplistic model for the evaluation of landslide hydrology (with very limited data): Nie, W., Krautblatter, M., Leith, K., Thuro, K., Festl, J., (2017)  A modified tank model including snowmelt and infiltration time lags for deep-seated landslides in alpine environments (Aggenalm, Germany), Nat. Hazards Earth Syst. Sci.

An uncommon look at frost wedging in the lab under ‘autumn’, ‘winter’, and ‘spring’ conditions

Frost wedging describes the process by which pressure from the expansion of freezing water in pre-exising fractures generates sufficient tensile stress to propagate the crack further into intact rock. Although this seems like a reasonably common sense interpretation (given the transition from water to ice involves a 9% expansion that’s often associated with the bursting […]

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MSc Jonas von Wartburg: Constraining the age and source area of the Molveno landslide deposits in the Brenta Group, Trentino Dolomites.

Candidate: Jonas von Wartburg Supervisors: Susan Ivy-Ochs, Kerry Leith, Prof. Dr. Silvana Martin (U. Padua) Institution: ETH Zurich, University of Padua Activity: Beginning Fall 2017 Introduction A detailed understanding of prehistoric landslides provides fundamental information on the inherent causes of massive rock slope failures in the Alps. In Trentino, a key issue in assessing hazards from rock wall […]

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Find me at EGU 2017

As usual, there’s plenty happening at EGU this year. You can find me at any one of these locations: Monday Mon, 24 Apr, 15:30–15:45, Room N1, GM1.6/BG9.38/HS11.11/NH8.8/TS4.7 | | Highlight Dynamic fracture development in response to extreme summer temperatures: 27/7/2014, Långören Island, Finland (EGU2017-16387) by Kerry Leith, Matthew Perras, Topias Siren, Tuomas Rantanen, Suvi Heinonen, […]

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Reconnaissance of ongoing fracturing in the Bedretto tunnel

An important aspect of our envoronmentally-driven fracturing project is a study of ongoing fracturing under relatively stable conditions in the 50 year old Bedretto tunnel. Yesterday Matthew Perras, Prof. Kurosch Thuro (Technical University of Munich), and myself made the first reconnaissance of the 5 km long tunnel and collection of baseline data from a recently […]

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A new SFM model for our Finland field site

Before the winter set in and a long twilight fell on the Finnish archipelago a group of us from ETH Zurich and Aalto University ventured out to Langören island to winterize the measuring equipment and gather data for numerical and structural analyses of the fracturing events. Following from a recent paper from Gonçalves et al. […]

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A documentary on work leading up to the GlacierRocks project

Find out more with the following links:

Homepage: http://www.georesearch.at/de/bereiche/forschungsbereiche/geo/projekt-glacierrocks
Facebook: https://www.facebook.com/georesearch/
ResearchGate: https://www.researchgate.net/project/GlacierRocks-Glacier-Headwall-Interaction-and-its-Influence-on-Rockfall-Activity
LinkedIn: https://www.linkedin.com/company-beta/17889341/

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