Emulating volcanic ash fall for multiscale analysis: Development of the VAPAHR tool and application to the Asia-Pacific region for the United Nations Global Assessment Report 2015

Significant advances have been made in recent years in probabilistic analysis of geological hazards. Analyses of this kind are concerned with producing estimates of the probability of occurrence of a hazard metric at a site given the location, magnitude, and frequency of hazardous events around that site. Significant advancements have been made towards the probabilistic assessment of earthquake hazard leading to the development of Probabilistic Seismic Hazard Analysis (PSHA). PSHA is a method for assessing and expressing the probability of earthquake hazard at a site of interest in terms of probability of exceeding certain ground motion intensities. Probabilistic methods for assessing volcanic ash hazard at a regional-scale are less advanced. The methodology presented here, Probabilistic Volcanic Ash Hazard Analysis (PVAHA), modifies the four-step procedure of PSHA for volcanic ash and applies it at a regional-scale. PVAHA considers a magnitude-frequency distribution of eruptions and associated volcanic ash load attenuation relationships and integrates across all possible events to arrive at an annual exceedance probability for each site across a region of interest. PVAHA can be aggregated to generate maps that visually convey the expected volcanic ash hazard for sites across the region at return periods of interest, or disaggregated to determine the causal factors which dominate volcanic ash hazard at individual sites. PVAHA results can be used to identify priority areas for more detailed, local scale ash dispersal modeling that can be used to inform disaster risk reduction efforts.

Simple

Identification info

Date (Publication)
2014-01-01T00:00:00
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/81611

Citation identifier
Digital Object Identifier/http://dx.doi.org/10.11636/Record.2014.036

Cited responsible party
Role Organisation / Individual Name Details
Publisher

Geoscience Australia

 Canberra
Author

Bear-Crozier, A.N.

 1
Author

Miller, V.

 2
Author

Newey, V.

 3
Author

Horspool, N.

 4
Author

Weber, R.

 5
Name

Record

Issue identification

2014/036

Point of contact
Role Organisation / Individual Name Details
Custodian

CSEMD
Owner

Commonwealth of Australia (Geoscience Australia)
Custodian

Commonwealth of Australia (Geoscience Australia)

 Voice
Topic category
  • Geoscientific information
Maintenance and update frequency
Not planned

Resource format

Title

Product data repository: Various Formats

Website

Data Store directory containing the digital product files

Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes

Keywords

  • GA Publication

  • Record

Australian and New Zealand Standard Research Classification (ANZSRC)

  • Volcanology

Keywords

  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

Alternate title

CC-BY

Edition

4.0

Website

http://creativecommons.org/licenses/

Access constraints
License
Use constraints
License

Resource constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified
Language
English
Character encoding
UTF8

Distribution Information

Distributor contact
Role Organisation / Individual Name Details
Distributor

Commonwealth of Australia (Geoscience Australia)

 Voice
OnLine resource

Download the Record (docx)

Download the Record (docx)

Distribution format

  • docx

OnLine resource

Download the Record (pdf)

Download the Record (pdf)

Distribution format

  • pdf

Resource lineage

Statement

Unknown

Hierarchy level
Non geographic dataset
Other

GA Publication

Description

Source data not available.

Metadata constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/fbee8a53-9662-0a2b-e044-00144fdd4fa6

Title

GeoNetwork UUID

Language
English
Character encoding
UTF8
Contact
Role Organisation / Individual Name Details
Point of contact

Commonwealth of Australia (Geoscience Australia)

 Voice

Type of resource

Resource scope
Document
Name

GA Record

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/81611

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/fbee8a53-9662-0a2b-e044-00144fdd4fa6

Date info (Revision)
2018-04-20T06:06:44
Date info (Creation)
2014-06-16T00:00:00

Metadata standard

Title

AU/NZS ISO 19115-1:2014

Metadata standard

Title

ISO 19115-1:2014

Metadata standard

Title

ISO 19115-3

Title

Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

Edition

Version 2.0, September 2018

Citation identifier
https://pid.geoscience.gov.au/dataset/ga/122551

 
 

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