Skip to Main Content
Book Chapter

Probabilistic digital hazard maps for avalanches and massive pyroclastic flows using TITAN2D

By
Michael F. Sheridan
Michael F. Sheridan
Department of Geology, State University of New York at Buffalo, Buffalo, New York 14260, USA
Search for other works by this author on:
Abani K. Patra
Abani K. Patra
Department of Mechanical and Aerospace Engineering, State University of New York at Buffalo, Buffalo, New York 14260, USA
Search for other works by this author on:
Keith Dalbey
Keith Dalbey
Sandia National Laboratories, Albuquerque, New Mexico 87185, USA
Search for other works by this author on:
Bernard Hubbard
Bernard Hubbard
U.S. Geological Survey, Eastern Mineral Resources, Reston, Virginia 20192, USA
Search for other works by this author on:
Published:
April 01, 2010

Geologists create volcanic hazard maps using scientific data to portray potential future geological events; the end users are principally public safety officials. Typical maps use a few simple polygons to outline areas of potential inundation or cover by a few categories of flows based on past frequency and size. Uncertainties in data regarding flow characteristics complicate the construction of accurate hazard maps. Generally, there are inadequate exposures of good sections, poorly known extents of units, and imprecise volumes for deposits. Crisis conditions limit the time available for field and laboratory work. Computer models can simulate possible scenarios, but the volumes, styles of emplacement, and source starting locations are poorly known in many cases. The large uncertainty in initial conditions is seldom taken into account in the construction of hazard maps, and these uncertainties are rarely passed on to the end users of the maps. TITAN2D is a computational model for volcanic block-and-ash flows and rock avalanches of various types and scales, and it forms the core of the TITAN toolkit for volcanic hazard analysis, which can integrate high-performance computing, database management, and visualization to a very sophisticated level. TITAN provides a solution to mapping problems by providing a probabilistic calculation of inundation depth that takes into account many of the critical uncertainties.

You do not currently have access to this article.

Figures & Tables

Contents

GSA Special Papers

Stratigraphy and Geology of Volcanic Areas

Gianluca Groppelli
Gianluca Groppelli
Consiglio Nazionale delle Ricerche, Istituto per la Dinamica dei Processi Ambientali, Sezione di Milano, Milano, Italy
Search for other works by this author on:
Lothar Viereck-Goette
Lothar Viereck-Goette
Institut für Geowissenschaften, Friedrich-Schiller-Universität Jena, Jena, Germany
Search for other works by this author on:
Geological Society of America
Volume
464
ISBN print:
9780813724645
Publication date:
April 01, 2010

References

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal