Workshop 3: Processing, Inversion and Visualization of Towed TEM Data for Aquifer Mapping

Cancelled as of 31 Aug.

Date:18 September 2022
Time: 09:00 - 17:30
Conveners:Toke Søltoft - Geophysicist and AGS director at Seequent
Thue Bording - Geophysicist and CEO at Aarhus GeoInstruments
Knud Valdemar Lassen - Geophysicist and developer at AGS / Seequent

Workshop Description

This workshop is suitable for geophysicists/geologists/engineers interested in ground based and airborne TEM surveys for groundwater mapping and students/staff at academic institutions involved in research on the TEM method, having a basic knowledge of geophysical survey methods.

Level: Beginner/Intermediate

The electromagnetic (EM) method is widely used for hydrological, environmental, engineering and mining surveys to map the subsurface resistivity.

In this workshop, we will cover the basics of the TEM method and go through all steps from processing and inversion of TEM data examples to visualization of model results.
There will be hands-on exercises where we will go through the processing filters, lateral (2D constrained) and spatial (3D constrained) inversions of TEM data, visualization of results in sections, 3D viewer and GIS interface.

We will use data acquired by the TEM instrument and the software package Aarhus Workbench.

At all times, the participants will be able to follow the workflow through a shared screen and hence ask the questions they might have to the software.

Course participants will be given a free, time-limited license to work with data before and/or after the course. Hands-on exercises at the workshops will be sent to participants along with license information before the course. For hands-on exercises, please bring your own laptop.


Workshop Schedule

9:00 - 10:00Basic theory of time-domain electromagnetics
10:00 - 10:45
TEM instrument overview
10:45 - 11:00
Coffee Break
11:00 - 12:00Data processing on TEM Data
12:00 - 13:00Lunch Break
13:00 - 14:45Data inversion to create inversion models
14:45 - 15:00Coffee Break
15:00 - 17:00Visualization on GIS, sections and 3D viewer
17:00 - 17:30Closing remarks and questions

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