Special Issue "Debris Flows Research: Hazard and Risk Assessments"
Deadline for manuscript submissions: 15 October 2021.
Interests: debris flow hazard and risk assessments
Substantial advances have been made in various aspects of debris-flow hazard and risk assessments over the past decade. These include sophisticated ways to date previous events, two and three-dimensional runout models including multiphase flows and debris entrainment options, and applications of extreme value statistics to assemble frequency–magnitude analyses. Quantitative risk management (QRM) has emerged as the most rational and defensible method to assess debris-flow risk and optimize mitigation efforts. The pertinent questions, of course, have remained the same: How often, how big, how fast, how deep, how intense, how far, and how bad? Similarly, while major life loss attributable to debris flows can often, but not always, be avoided in developed nations, debris flows remain one of the principal geophysical killers in mountainous terrains. Substantial differences persist between nations in hazard or risk management. Some rely on a design magnitude associated with a specific return period, others use relationships between intensity and frequency, and some allow for, but do not mandate, in-depth quantitative risk assessments. The range in return periods considered in hazard and risk assessments vary over two orders of magnitude from 1:100 to 1:10,000. Similarly, profound differences exist in the management of debris-flow risks, from highly sophisticated and nationwide applied protocols and funding formulae to a largely retroactive approach in which catastrophic debris flows occur before they are being considered for mitigation. In many nations, access to funding and lack of at least regional prioritization provides the biggest obstacles to widespread safeguarding against debris flows. Two factors conspire to challenge future generations of debris flow researchers, practitioners, and decision makers: Population growth and climate change. The former will invariably invite continued development in debris-flow prone areas, especially fans, floodplains, and terraces subject to lahars or landslide/moraine dam/glacial outburst floods which, at times, assume debris-flow characteristics. As far as debris flows are concerned, climate change is manifesting itself increasingly by augmenting hydroclimatic extremes, especially a several-fold increase in the frequency of short-duration high-intensity rainfall that may soon exceed historical precedents. Increases in magnitude of extreme rainfall scale closely related to the Clausius–Clapeyron relationship, though exceptions to this generalization have been noted.
This Special Issue focuses on significant advances in hazard and risk assessments of debris flows, which aresubjects of intense study. Contributions are encouraged that present studies in which a new method has been advanced, or an existing method is being used in an innovative way in solving old puzzles. Special focus should be placed on the direct applicability of such methods in practice and their testing on well-researched debris-flow locations.
Dr. Matthias Jakob
Dr. Scott McDougall
Manuscript Submission Information
Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.
Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Water is an international peer-reviewed open access semimonthly journal published by MDPI.
Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.
- Hazard assessment
- Risk assessment
- Quantitative methods
- Empirical relationships
- Runout models