Tephra isopach, extent and volume calculation in R

04 Mar 2016 | 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...

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

04 Nov 2015 | 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...

Tephra 2014-2020 Document Repository

01 Jul 2015 | 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...

Spread sheet to calculate tephra volume for exponential thinning

10 Apr 2015 | 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...

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

11 Dec 2014 | 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

Tephra 2014 Field Trip Guide

08 Dec 2014 | 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.

Geochemistry and Petrology first response draft

28 Aug 2014 | Contributor(s): Gudmundur H Gudfinnsson, Armann Hoskuldsson, Níels Örn Óskarsson

Here are the documents which were presented at the meeting on the 27th of August. Please feel free to download, edit, and then update the files stored here.

Reference File of Recent Publications to Monogenetic Volcanism

19 Feb 2014 | Miscellaneous | Contributor(s): Karoly Nemeth

Reference file of recent publications relevant to monogenetic volcanism including maar, tuff ring, tuff cone, scoria cone, monogenetic volcanic field and phreatomagmatic search words between since year 2000 from Web of Science.

5th International Maar Conference Poster

19 Feb 2014 | Miscellaneous | Contributor(s): Karoly Nemeth

2nd IUGG-WMO Workshop on Ash Dispersal Forecast and Civil Aviation, Consensual Document

18 Feb 2014 | Workshops | Contributor(s): Costanza Bonadonna, Peter W Webley, Matthew Craig Hort, Arnau Folch, Sue C Loughlin, Herbert Puempel

An international expert community of volcano observatories, academic scientists, volcanic ash advisory centres and representatives of aviation regulators, engine manufacturers and airlines met in Geneva on 18-20 November 2013 to discuss progress on ash dispersal forecasting and produce a roadmap...

TOTGS: Total grainsize distribution of tephra fallout

20 Jan 2014 | Offline Tools | Contributor(s): Seb Biass, Costanza Bonadonna

NOTE The code is now maintained on GitHub: https://github.com/e5k/TOTGS Follow updates on: https://e5k.github.io/  Quantifying the total grainsize distribution (TGSD) is a necessary step to achieve a thorough characterization of a given tephra deposit. Several methods exist to...

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;...

Olive

23 Jul 2013 | *Tools | Contributor(s): Joaquin Alberto Cortes

Olive 2.1.1 a simple fractional crystallization calculator.

Basalt 2013 - Cenozoic Magmatism in Central Europe: Abstracts and Excursion Guides

16 May 2013 | Publications | Contributor(s): Karoly Nemeth

Full abstract volume of the Basalt 2013 conference (24-28 April 2013, Goerlitz, Germany).The conference was supported by IAVCEI and it was an event of the Commission on Monogenetic Volcanism.

Eruption data for ash-cloud model validation

04 Apr 2013 | *Data Sets/Collections | Contributor(s): Larry Garver Mastin, Costanza Bonadonna, Arnau Folch, peter webley, barbara stunder, Michael Pavolonis

This is a collection of data, references, and links to data on well-documented eruptions whose observations can be used to validate ash-cloud transport models. Data include, among other things, plume height, duration, erupted volume, satellite observations, numerical wind fields, and grain-size...

Tritone

13 Mar 2013 | *Tools | Contributor(s): Joaquin Alberto Cortes

Tritone a mini tool to plot ternary diagrams

Norma

14 Oct 2012 | *Tools | Contributor(s): Joaquin Alberto Cortes

A tool to calculate the Barth-Niggli and CIPW norms from whole-rock chemistry