NEWS received from Vittoria Capobianco – NGI, Norway
The Joint Technical Committee on Natural Slopes and Landslides (JTC1) of FedICGS is delighted to invite you to join us at the 3rd JTC1 Workshop on Impact of global changes on landslide risk, to be held in Oslo, Norway on June 7th – 10th, 2023.
Anthropogenic impacts and related climate change are unquestionably changing the landslide risk and impacting how we assess and manage the risk(s).
The aim of the Workshop is to promote discussion between scientists and engineers on whether we are capable of predicting and quantifying the expected changes in landslide risk and how we could implement the knowledge gained from academic research on landslide risk management into practice. The advanced topics in focus for the discussions include:
Rock mass degradation and landslide initiation;
Climate and anthropogenic impact on landslide risk in various geographic regions, including the Arctic;
Prediction of landslide mobility and impact footprint, including landslides initiated at mine tailings storage facilities;
Application of modern remote sensing technologies to landslide risk assessment;
Landslide risk reduction strategies: risk mitigation, including early warning and nature-based solutions;
Applications of new technologies like machine learning for landslide susceptibility and landslide hazard mapping.
The workshop will consist of two lecture days (June 8 and 9), and a one-day technical excursion (June 10). The lecture days will be a combination of five keynote lectures, a number of invited lectures, the 3rd Hutchinson Lecture as well as discussion sessions.
You are invited to submit extended abstracts (up to 4 pages) for oral presentation and short abstracts (max 1 page) for poster presentation. Instructions and templates for abstract submission can be found here.
The deadline for submitting both extended and poster abstracts is 31 March 2022.
The digital proceedings will be issued right after the workshop and made available on the 3rd JTC1 Workshop website.
The Organizing Committee will make a selection of the best abstracts (oral presentations and posters) and invite the authors to provide a full manuscript to be published in a Special Issue of a refereed, open-access journal. A total of 10 to 15 articles are envisioned for the Special Issue, which is expected to be published within one year after the workshop.
In this short paper, the authors summarize the experiences acquired by the Norwegian Landslide Forecasting and Warning Service during the first 7 years (between 2013 and 2019) of operation and discuss some of the main strengths and limitations of the service. The authors recognize that the major strengths of the service were the national political will (towards the creation of such of service), the assignation of the landslide forecasting service to an existing well consolidated flood warning service, the strong collaboration across public agencies and the multidisciplinary approach. The existence of a national landslide database and of an operational distributed hydrological model were essential for the rapid establishment of relationships between landslides events and hydro-meteorological conditions. A strong development of IT-tools and expansion of the meteorological and hydrological network was also crucial. Several are the challenges and limitations, among them: an insufficient process-understanding of rainfall- and snowmelt-induced landslides, the difficult and tedious task of verifying landslide occurrence after a warning is sent and, the prediction of landslides triggered by local intense rain showers during summer, and by rapid snowmelt events during winter, due to the limitations that exist in the models and thresholds currently in use.
Reference: Devoli G., Colleuille H., Sund M., Wasrud J. (2021). Seven Years of Landslide Forecasting in Norway—Strengths and Limitations. In: Springer Nature Switzerland AG 2021, N. Casagli et al. (eds.), Understanding and Reducing Landslide Disaster Risk, ICL Contribution to Landslide Disaster Risk Reduction, https://doi.org/10.1007/978-3-030-60311-3_30 (pages 267-274)
To advance the understanding of landslide hazard and risk, this Forum will provide a platform for academics and practitioners to share insights and experience gained from research and practice. The Forum focuses on four themes, namely (1) Probabilistic slope stability assessment, (2) Climate impact on slope stability and landslides, (3) Landslide mobility and (4) Landslide risk assessment and mitigation.
The event will be conducted in a virtual mode. Participation at the event is free of charge, but registration is compulsory and should be completed online.
NEWS received from Luca Piciullo, Dalia Kirschbaum, Neelima Satyam, Samuele Segoni, and Stefano Luigi Gariano
The EGU General Assembly 2022#EGU22 will return as an in-person/hybrid event to Vienna, Austria, from 3-8 April 2022, once again bringing together geoscientists from all over the world. The session entitled “Towards reliable Landslide Early Warning Systems” is now open to receive your contributions.
The session focuses on LEWSs at both regional and local scales. The session wishes to highlight operational approaches, original achievements and developments useful to operate reliable (efficient and effective) local and territorial LEWSs. Contributions addressing the following topics are welcome: – rainfall thresholds definition for warning purposes; – monitoring systems for early warning purposes; – warning models for warning levels issuing; – performance analysis of landslide warning models; – communication strategies; – emergency phase management.
The deadline for abstract submission is 12 January 2022, 13:00 CET.
For those applying for EGU Roland Schlich travel support, the deadline is 1 December 2021, 13:00 CET. Only EGU members with a valid 2022 membership will be able to submit abstracts to EGU22 and, with a few exceptions, only one abstract as first author will be permitted.
Note on presentation format: if you plan on participating virtually, you should submit your abstract to a vPICO session, since the oral/poster sessions will not provide the possibility for virtual presentation. If you plan on attending in-person in Vienna, feel free to submit to any session, vPICO as well as oral/poster sessions.
Looking forward to receiving your contributions and to meeting you all (in person or virtually) soon! Luca Piciullo, Dalia Kirschbaum, Neelima Satyam, Samuele Segoni, Stefano Luigi Gariano
NEWS received from Davide Tiranti, Regional Agency for Environmental Protection of Piedmont region, Italy
New article “Wildfires Effect on Debris Flow Occurrence in Italian Western Alps: Preliminary Considerations to Refine Debris Flow Early Warnings System Criteria” published in the special issue of Geosciences journal on “Local and Territorial Landslide Early Warning Systems“
In this paper, two case studies in the Italian western Alps on the relationship between wildfires and debris flows occurrence have been analyzed to understand how to integrate this factor in the regional debris flow early warning system (DFEWS). To define these correlations, the authors conducted analyses to characterize changes in the conditions and behavior of catchments after wildfires. The Curve Number (CN) method was adopted to estimate hydrological variations before and after wildfires and identify the differences in catchments response to rainfall events, due to its simple applicability over a large number of catchments. Rainfall analyses, using both data from raingauges and weather radars to identify the actual distribution of precipitation intensity fields, were addressed. The case studies described have led to some interesting results, both regarding the understanding of the wildfires effects on debris flows triggering in small Alpine catchments and on the necessary technical and operational adjustments to improve the DFEWS performance in case of wildfire occurrence.
Reference: Tiranti D., Cremonini R., Sanmartino D. (2021) Wildfires Effect on Debris Flow Occurrence in Italian Western Alps: Preliminary Considerations to Refine Debris Flow Early Warnings System Criteria. Geosciences 11, 422. https://doi.org/10.3390/geosciences11100422
NEWS received from Mirianna Budimir, Practical Action, SHEAR Knowledge Broker
The Science for Humanitarian Emergencies and Resilience (SHEAR) programme funded by FCDO and UKRI NERC supports world-leading research to enhance the quality, availability and use of risk and forecast information.
SHEAR is delighted to share with you three complementary resources that bring together learning and knowledge from across SHEAR and published literature to provide an introduction to landslide early warning systems for practitioners, donors, and researchers in developing countries:
We hope these introductory guides are useful for the LandAware community. For further information on the SHEAR programme and associated landslide projects and publications, please visit http://shear.org.uk.
NEWS received from Paulo Hader – São Paulo State University (UNESP)
New article: Risk cross-referencing for landslide risk assessment at a municipal scale, by Paulo Hader and co-authors from São Paulo State University, Brazil
This recently published paper proposes a model for landslide risk assessment at the municipal scale, useful for early waninrg purposes. Three products, being rainfall thresholds, landslide susceptibility map and social vulnerability map were produced statistically. To couple them, the authors used a two-matrix approach, where in the first matrix the susceptibility map and the vulnerability map were crossed, constituting the socio-natural criterion; and in the second matrix, the rainfall thresholds were coupled to the socionatural criterion, allowing a real-time assessment. The authors found that the model offers easy adaptation and calibration once new data emerges, as well as being able to be integrated into a landslide early warning system to make explicit the areas of highest degree of loss, where interventions can be made in advance to reduce the risk in specific areas.
Reference: Hader, P.R.P., Reis, F.A.G.V. & Peixoto, A.S.P. (2021) Landslide risk assessment considering socionatural factors: methodology and application to Cubatão municipality, São Paulo, Brazil. Natural Hazards. https://doi.org/10.1007/s11069-021-04991-4
NEWS received from Adrian Wicki PhD StudentSwiss Federal Research Institute WSL Mountain Hydrology and Mass Movements Research Unit Zürcherstrasse 111 CH-8903 Birmensdorf
In a recently published article we assess the potential of simulated soil moisture for regional landslide early warning. For this study, soil moisture variation was simulated with a physically-based 1D soil water transfer model and forecasst goodness for landslides was assessed using a statistical landslide forecast model. In direct comparison with in-situ measured soil moisture we found that the overall representativeness for regional landslide occurence is high, however that it is particularly challenging to well characterize critical antecedent wetness conditions.
Wicki, A., Jansson, P.-E., Lehmann, P., Hauck, C., and Stähli, M.: Simulated or measured soil moisture: which one is adding more value to regional landslide early warning?, Hydrol. Earth Syst. Sci., 25, 4585–4610, https://doi.org/10.5194/hess-25-4585-2021, 2021.