Validation data for manuscript "Novel statistical emulator construction for volcanic ash transport model Ash3d with physically-motivated measures"

02 Sep 2020 | Contributor(s): Qingyuan Yang, E Bruce Pitman, Elaine Spiller, Marcus I Bursik, Andrea Bevilacqua

This database presents the testing and validation data used and presented in the manuscript titled "Novel statistical emulator construction for volcanic ash transport model Ash3d with physically-motivated measures". The manuscript is submitted to the Proceedings of the Royal...

Tephra inversion with Tephra2 and the Metropolis-Hastings algorithm

21 Jun 2020 | Contributor(s): Qingyuan Yang, E Bruce Pitman, Marcus I Bursik, Susanna Jenkins

We couple the Metropolis-Hastings algorithm (Hastings, 1970) with the volcanic ash transport model Tephra2 (Bonadonna et al, 2005; 2010), and present the coupled algorithm as a new method to estimate the Eruption Source Parameters (ESPs) of volcanic eruptions based on mass per unit area...

Probabilistic hazard maps of pyroclastic density currents in the Long Valley Volcanic Region

08 Aug 2019 | Contributor(s): Regis Rutarindwa, Elaine Spiller, Andrea Bevilacqua, Marcus I Bursik, Abani Patra

This is a repository of the maps and graphs of PDC inundation probability distributions and related uncertainty indices for the Long Valley volcanic region, according to the physical and statistical model in: Regis Rutarindwa, Elaine T. Spiller, Andrea Bevilacqua, Marcus I. Bursik, and Abani...

Volcanic Ash Explorer Workflow

18 Jul 2019 | *Tools | Contributor(s): Renette Jones-Ivey, Marcus I Bursik, Abani Patra, Klaus Sievers

Volcanic Ash Explorer Workflow

Vent opening maps dataset for Long Valley volcanic region

25 Apr 2019 | *Data Sets/Collections | Contributor(s): Andrea Bevilacqua, Marcus I Bursik, Abani Patra, E Bruce Pitman, Ryan Till

FILE - VOmaps.zipRandom instances of vent opening map probability distributions for the Long Valley volcanic region, according to the combined statistical model in:Bevilacqua, A., M. Bursik, A. Patra, E. B. Pitman, and R. Till (2017) Bayesian construction of a long-term vent opening...

Uncertainty Workshop: Deadline Approaching

01 Feb 2019 | Workshops | Contributor(s): Marcus I Bursik

Coupling Uncertain Geophysical Hazards WorkshopMarch 24-26, 2019James B. Hunt Library, North Carolina State University, Raleigh, NCDescription: Scientists are beginning to understand the propagation of uncertainty through mathematical models, to enable predictions of the likely...

Announcement: Coupling Uncertain Geophysical Hazards Workshop

30 Nov 2018 | Miscellaneous | Contributor(s): Marcus I Bursik

Coupling Uncertain Geophysical Hazards WorkshopMarch 24-26, 2019James B. Hunt Library, North Carolina State University, Raleigh, NCDescription: Scientists are beginning to understand the propagation of uncertainty through mathematical models, to enable predictions of the likely...

A new method to identify the vent location of tephra fall deposits based on thickness or maximum clast size measurements (SVL)

17 Apr 2018 | Offline Tools | Contributor(s): Qingyuan Yang, Marcus I Bursik, E Bruce Pitman

This tool presents a new method to identify the vent location of tephra fall deposits based on thickness or maximum clast size measurements. It is temporarily named "svl", which is short for Source Vent Locator. The method estimates the vent location by coupling semi-empirical models...

INQUA–INTAV International Field Conference and Workshop: Crossing New Frontiers

14 Mar 2018 | Workshops | Contributor(s): Marcus I Bursik

The INQUA International Focus Group on Tephrochronology and Volcanism (INTAV) cordially invites you to participate in the Crossing New Frontiers - Tephra Hunt in Transylvania international field conference that aims to continue the long tradition of very successful inter-INQUA congress tephra...

Mono-Inyo Tephra Database

01 Aug 2017 | *Data Sets/Collections | Contributor(s): Marcus I Bursik

The Mono-Inyo Craters is a zone of active volcanism in California, USA, that extends from Mammoth Mountain and Long Valley caldera in the south to the islands of Mono Lake in the north.  This resource provides the citation for the Mono-Inyo tephra database.  The database can...

Tephra 2017 Workshop : Best practices in tephra collection, analysis, and reporting leading toward better tephra databases

15 Jun 2017 | Workshops | Contributor(s): Marcus I Bursik, Stephen C Kuehn, Kristi L Wallace, Andrei V Kurbatov

Best practices in tephra collection, analysis, and reporting: Leading toward better tephra databasesThis is a page for the Tephra 2017 workshop, held in Portland, OR, 19 August 2017.  The workshop was a follow-on to the Tephra 2014 workshop, held 3-7 August 2014, also in...

Updated version of an algorithm for tephra isopach, extent and volume calculation in R

18 Oct 2016 | Miscellaneous | Contributor(s): Marcus I Bursik, Qingyuan Yang

We have updated an algorithm that aids in isopach construction, and volume and extent calculation of tephra fall deposits.  The program is written in R.  Documentation has been improved, and we now include example datasets for the North Mono eruption and Fogo A.  The algorith and...

Bent-Hysplit Workflow Tool

22 Sep 2016 | *Tools | Contributor(s): Renette Jones-Ivey, Marcus I Bursik, Abani Patra, Matt Jones, Don Morton, Zhixuan Cao

New workflow tool for Bent-Hysplit workflows

Granular Flow Experiments for Validation of Numerical Flow Models

25 Jun 2016 | *Data Sets/Collections | Contributor(s): Amy Webb, Marcus I Bursik

Many types of geophysical flows such as debris avalanches and pyroclastic flows pose significant danger to both people and property. Understanding granular avalanche behavior and particle interaction during the course of a flow is very important in the development of granular flow models. Since...

Tephra isopach, extent and volume calculation in R

04 Mar 2016 | Offline Tools | Contributor(s): Qingyuan Yang, Marcus I Bursik

The method presented here is used to interpolate the thickness distribution of tephra fall deposits from point measurements. It first reconstructs the general thickness decay pattern, or "trend," and then models the residuals that cannot be explained by the trend with...

Tephra 2014-2020 Document Repository

01 Jul 2015 | Publications | Contributor(s): Marcus I Bursik, Solene Pouget, Stephen C Kuehn, Kristi L Wallace, Andrei V Kurbatov

Beginning with the consensus document (with three appendices) resulting from the Tephra 2014 Workshop, this is the document repository for the Tephra 2014, 2017 and 2019 Workshops on standardization.The immediate goal of the tephra standardization effort is to translate checklists...

AGU Poster: Results of the Tephra 2014 Workshop on Maximizing the Potential of Tephra for Multidisciplinary Science

11 Dec 2014 | Publications | Contributor(s): Stephen C Kuehn, Solene Pouget, Kristi L Wallace, Marcus I Bursik

Poster presentation from the 2014 AGU Fall Meeting reporting on results and conclusions of the Tephra 2014 workshop

South Mono Geochemical Dataset

18 Jan 2014 | *Data Sets/Collections | Contributor(s): Marcus I Bursik

This is the set of geochemical data that are shown in the publication on the South Mono tephra (in review at JVGR as of 18 January 2014).

Tephra 2014 - Maximizing the potential of tephra for multidisciplinary science

09 Jan 2014 | Workshops | Contributor(s): Steven Kuehn, Solene Pouget, Marcus I Bursik

Tephra deposits are used by diverse communities: volcanologists, petrologists, tephrochronologists, paleoclimatologists, paleoecologists and archaeologists. To perhaps be too reductionist, volcanologists are generally interested in tephra to understand eruption behavior, frequency, and hazards;...

Estimation and propagation of volcanic source parameter uncertainty in an ash transport and dispersal model: application to the Eyjafjallajokull plume of 14--16 April 2010

19 Sep 2012 | Publications | Contributor(s): Marcus I Bursik

Data on source conditions for the 14 April 2010 paroxysmal phase ofthe \eyja~ eruption, Iceland, have been used as inputs to atrajectory-based eruption column model, . This model has inturn been adapted to generate output suitable as input to the volcanicash transport and dispersal model, , which...

ICCS'12 Presentation in DDDAS session

04 Jun 2012 | Publications | Contributor(s): Abani Patra, Puneet Singla, Marcus I Bursik, m jones2