Volcanic Eruption

Recommended Practice: Exposure Mapping

English

Teaser Recommended Practice: 

Mapping the extent of a natural hazard (e.g., assessing areas with a high risk) or disaster is a first step in disaster risk management and emergency response. Subsequently, exposure mapping enables the estimation of the impact of hazards or disasters, for example, regarding the number of affected inhabitants or infrastructure. The following practice shows the use of Quantum GIS to analyze a disaster extent map in combination with auxiliary data such as population or land cover data.

Flowchart Recommended Practices: 

Related Software: 

Objective: 

The objective of this practice is to estimate the exposure of a natural hazard or disaster. As an example, the number of inhabitants affected by a flood event is estimated. The joint use of the flood mask, created by the Recommended Practice: Flood Mapping, and the WorldPop data set constitutes a viable solution to quickly estimate the impact of the flood regarding the population. The proposed methodology is a universal practice which combines a simple approach based on open-source software and free of charge data together with a beforehand created map covering the extend of a natural hazard or disaster.

Disaster Cycle Phase: 

  • Mitigation
  • Preparedness
  • Recovery & Reconstruction
  • Relief & Response

Main Hazards: 

  • Drought
  • Earthquake
  • Extreme Temperature
  • Forest Fire
  • Flood
  • Insect Infestation
  • Mass Movement
  • Pollution
  • Severe Storm
  • Tsunami
  • Volcanic Eruption

Test Site: 

Malawi

Context: 

The practice was applied in the context of the flood event in Malawi in January 2015. Since December 2014, heavy rains affected Malawi causing rivers to overflow. The flooded area in this analysis covered a part of the Nsanje district around Chiromo.

Applicability: 

This practice can be applied globally. Besides of the beforehand created hazard or disaster extent map, the practice does not need specific near real-time data as it is based on population, land cover, or other auxiliary geodata archives. The WorldPop data set provides population data for Africa, Asia as well as Central and South America with a spatial resolution of 100 meters. The Landcover30 data base provides global landcover data with a spatial resolution of about 30 meters.

Geo Community (Sri Lanka)

Data Type: 

baseline
elevation
landuse
satdata

Costs: 

rfree
Undefined

Spatial Coverage: 

Sri Lanka

Temporal Coverage: 

arch

Data accessibility: 

exportdata
exportmap

Taxonomy upgrade extras: 

Institution: 

File types: 

MrSID

Disaster Cycle Phase: 

drm

Spatial Resolution: 

15.00

Restrictions / Citation of the dataset: 

Satellites and Sensors: 

Sri Lanka National Spatial Data Infrastructure (NSDI)

Data Type: 

satdata

Costs: 

rfree
Undefined

Spatial Coverage: 

Sri Lanka

Temporal Coverage: 

arch

Data accessibility: 

exportdata

File types: 

GeoTIFF
TIFF

Disaster Cycle Phase: 

drm

Spatial Resolution: 

2.50

Requirements: 

<p>Satellite data can be viewed by users on request with the approval of the Surveyor General at CRS Branch.</p>

COSMO-SkyMed/SAR imagery (ESA)

Data Type: 

satdata

Costs: 

rfree
English

Spatial Coverage: 

Global

Temporal Coverage: 

arch

Data accessibility: 

exportdata

File types: 

GeoTIFF
HDF5
JPEGJPG
TIFF

Disaster Cycle Phase: 

drm
rr

Spatial Resolution: 

1.00

Requirements: 

<p>Submission of Project Proposal is required for Restrained Datasets</p>

Restrictions / Citation of the dataset: 

Satellites and Sensors: 

RADARSAT- 1&2/SAR imagery (CSA and MDA)

Data Type: 

satdata

Costs: 

rfree
English

Spatial Coverage: 

Global

Temporal Coverage: 

arch

Data accessibility: 

exportdata

File types: 

TIFF
XML

Disaster Cycle Phase: 

drm
rr

Spatial Resolution: 

1.60

Space-based Information: 

RADARSAT-1&2/SAR

Requirements: 

<p>ESA gives only to European Principal Investigators (Europe28+Switzerland+Norway) the opportunity to get a limited amount of free products upon the submission of a project proposal.</p>

Satellites and Sensors: 

Geological Hazards and Monitoring at the Azores (Portugal)

 

English

Bibliographic reference: 

Gaspar et al. (2011). Geological Hazards and Monitoring at the Azores (Portugal). Earthzine, posted on April 12th, 2011 in Articles, Disaster Management, Earth Observation. 14 p.

Low-cost Deformation Measurement System for Volcano Monitoring

Disaster Cycle Phase: 

  • Mitigation
  • Preparedness

Space Technology/Product and Application: 

  • SATNAV

Field of Application: 

  • Security
  • Human Aspects
  • Volcanic Eruption
  • Disaster Type
English

Low-Cost Deformation Measurement System for Volcano Monitoring

Ground deformation due to volcanic magma intrusion is recognised as an important precursor

External Contact Person: 

Craig Roberts
English

Bibliographic reference: 

Craig Roberts, Cedric Seynat, Chris Rizos and Graeme Hooper. 3rd FIG Regional Conference Jakarta, Indonesia, October 3-7, 2004. Low-Cost Deformation Measurement System for Volcano Monitoring.

ERS-1,2 (AMI)

Disaster Cycle Phase: 

  • Recovery & Reconstruction
  • Recovery & Reconstruction
  • Recovery & Reconstruction

Space Technology/Product and Application: 

  • Vegetation Damage Assessment
  • Vegetation Damage Assessment
  • Vegetation Damage Assessment
  • EO/RS
  • EO/RS
  • EO/RS

Field of Application: 

  • Volcanic Eruption
  • Volcanic Eruption
  • Volcanic Eruption
  • Disaster Type
  • Disaster Type
  • Disaster Type

Satellite: 

English

JERS-1 (SAR)

Disaster Cycle Phase: 

  • Recovery & Reconstruction
  • Recovery & Reconstruction

Space Technology/Product and Application: 

  • Vegetation Damage Assessment
  • Vegetation Damage Assessment
  • EO/RS
  • EO/RS

Field of Application: 

  • Volcanic Eruption
  • Volcanic Eruption
  • Disaster Type
  • Disaster Type

Satellite: 

English

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