IG- EPN /STREVA InSAR Workshop
Quito, June 19th – 20th, 2013
Wednesday 19th
Introduction to InSAR - Juliet Biggs (20 minutes)
General introduction. What is InSAR? Brief history of InSAR. Primary applications (Volcanoes, EQ, landslides,
anthropogenic subs, flooding, deforestation etc.) . Data availability & satellite missions.
InSAR for measuring volcano deformation – Susanna Ebmeier (20 minutes)
Overview of global measurements of InSAR volcano deformation made to date. What volcanic processes are
detectable with InSAR? Description of examples of magmatic deformation (co-eruptive and not related to
eruption) and non-magmatic deformation. Brief description of trends in global dataset.
IG-EPN talk on Geodetic measurements in Ecuador – Patricia Mothes (20 minutes)
[Break]
Other applications of radar – Geoff Wadge (1 hr)
Ground-based radar systems. Ground-based InSAR, topographic change, rockfall detection, ash monitoring.
Satellite radar intensity principles. Intensity change difference monitoring of domes, lava flows and pyroclastic
flows.
Constructing and interpreting interferograms 1 – Cyril Muller (30 minutes)
The general principles of interferometry and how interferograms are constructed, including a runthrough of processing steps as for roipac with illustrations.
Constructing and interpreting interferograms 2 – Susanna Ebmeier (30 minutes)
Phase contributions to interferograms (deformation, orbital artefacts, dem artefacts, atmospheric
artefacts etc.)
Finish at 18.00
Thursday 20th
Practical session: understanding and modelling interferograms (2 hrs)
Introduced by Juliet Biggs, requires access to computers with Matlab. One between 2 or 3.
As for CR workshop.
Analysing interferograms 1 – Cyril Muller (30 minutes)
Analysis of interferograms (stacking, network corrections, resolving components of motion and PS
InSAR)
Analysing interferograms 2 Juliet Biggs (30 minutes)
Modelling volcano deformation (Other approaches to modelling deformation and challenges for
interpreting volcano deformation data)
[Lunch]
Deformation at Reventador – Geoff Wadge (30 minutes)
Comparing InSAR to ground-based measurements at Tunguruhua – Cyril Müller (30 minutes)
Multiparametric trends in the 14 year eruption process of Tungurahua-Gorki Ruiz (30 minutes)
Arc-scale survey: Ecuador 2007-2010 – Susanna Ebmeier (30 minutes)
[Break]
Discussion of targets for InSAR measurement in Ecuador and future collaboration – Everyone (1 hr)
Lead by Juliet & Geoff
Friday 21st
Installing software and processing interferograms (Susi, Cyril & anyone from IG-EPN with a particular interest)