Natural Hazards Tephra Fallout Lab

04 Mar 2011 | Educational Materials | Contributor(s): Leah Michelle Courtland

This lab walks students through using the tephra2 education graphical user interface (gui) to investigate tephra fallout at Colima volcano. By the end of this lab, students should be able to:•understand that every volcanic event is different and so produces a unique deposit•convert from units of...

A Matlab implementation of the Carey and Sparks (1986) model

04 Nov 2015 | Offline Tools | Contributor(s): Sebastien Biass, Gholamohssein Bagheri, Costanza Bonadonna

Download the code on GitHub: https://github.com/e5k/CareySparks86_MatlabFollow updates on: https://e5k.github.io/   This file is a Matlab implementation of the Carey and Sparks (1986) model to estimate i) the plume height above sampling altitude and ii) the wind speed at the...

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...

Maar-diatremes - a course module

13 Jun 2016 | Educational Materials | Contributor(s): Greg A Valentine, Alison Graettinger

Maar-diatremes are one of the most common volcanic landforms on Earth, and represent an end-member type of volcano whose eruptions are dominated by explosive, subsurface magma-water interaction.  Thus they should form an important component of volcanology courses.  The recent decade has...

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...

puffin

08 Sep 2010 | *Tools | Contributor(s): Marcus I Bursik, Alejandro Uriel Carbonara, Sean Michael Zawicki, Abani Patra, Renette Jones-Ivey

puffin = a tool to run the volcanic ash dispersal model -- puff -- based on the plume trajectory model -- bent.

Spread sheet to calculate tephra volume for exponential thinning

03 Dec 2014 | Offline Tools | Contributor(s): Manuel Nathenson, Judy Fierstein

An Excel spread sheet and instructions are provided to calculate tephra volume for exponential thinning on a log(thickness) versus square root of area plot. The spread sheet calculates volumes for a single straight line and for two straight lines. The equations for the calculations are from...

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;...

Tephra 2014 Field Trip Guide

08 Dec 2014 | Publications | Contributor(s): Stephen C Kuehn

Guidebook for the field trip to Mount Saint Helens conducted 4-August-2014 as part of the Tephra 2014 workshop.

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...

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...

Tephra in Quaternary Science 2011 Edinburgh Workshop Report: The Eyjafjallajökull eruptions of 2010

18 Aug 2011 | Publications | Contributor(s): Andrew Julian Dugmore, Anthony Newton, Kate Taylor Smith

Report and Community Statement from the workshop on the Eyjafjallajokull eruptions of 2010 and implications for tephrochronology, volcanology and Quaternary studies, Institute of Geography, University of Edinburgh, 5th‐6th May 2011. The first meeting of Tephra in Quaternary Science (TIQS), the...

Tephra inversion with Tephra2 and the Metropolis-Hastings algorithm

21 Jun 2020 | Offline Tools | 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...

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...

Tephra2

20 Apr 2010 | *Tools | Contributor(s): Costanza Bonadonna, Laura Connor, Chuck B Connor, Leah Michelle Courtland

Tephra2 uses the advection diffusion equation to forecast tephra dispersion in a given location based on a user-defined set of eruptive conditions.

Tephra2 Source Code

14 Jul 2010 | Offline Tools | Contributor(s): Chuck B Connor, Leah Michelle Courtland

Tephra2 uses the advection diffusion equation to forecast tephra dispersion in a given location based on a user-defined set of eruptive conditions.Tephra2 codes are now maintained on GitHub: https://github.com/geoscience-community-codes/tephra2 Available are:1-processor...

Tephra2: Student Version

21 Feb 2011 | *Tools | Contributor(s): Leah Michelle Courtland, Chuck B Connor, Laura Connor, Costanza Bonadonna

The Tephra2 ash dispersion model run via a GUI designed for student use.

TephraProb: a Matlab package for probabilistic hazard assessments of tephra fallout

15 Sep 2016 | Offline Tools | Contributor(s): Sebastien Biass, Costanza Bonadonna, Laura J Connor, Chuck B Connor

Download the code on GitHub: https://github.com/e5k/TephraProbFollow updates on: https://e5k.github.io/TephraProb is a toolbox of Matlab functions designed to produce scenario–based probabilistic hazard assessments for ground tephra accumulation. The toolbox includes a series of...