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16:32:55, 16 April 2020 +
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April 16, 2020 +
John +
Naliboff +
via zoom +
United States +
via zoom - see web page for details +
April 16, 2020 +
Image:Cig logo.png +
April 16, 2020 +
April 16, 2020 +
The webinar on April 16 will be presented … The webinar on April 16 will be presented by Boris Kaus, Tobias Baumann, Georg Reuber, Anton Popov (Johannes Gutenberg University of Mainz) on Geodynamic inversion: Methods to link models with data & how that helps to obtain insights in the physics and rheology of the lithosphere:</br></br>In order to link geodynamic forward models with geological and geophysical data, inverse modelling strategies are required. Here, we will discuss the basic principles behind the two main inversion approaches: Sampling-based (statistical) and gradient-based (deterministic) inversion. We will show the advantages and disadvantages of each approach related to geodynamical inverse problems. We will also explain the adjoint method, which is a particularly efficient way to compute the pointwise gradient of the misfit function with respect to model parameters. The gradients are not only useful for inversions but can also be employed to 1) automatically determine the key model parameters (and scaling laws) for a particular geodynamic simulation and 2) can be used to compute geodynamic sensitivity kernels that visually show where changes in the setup have a key impact, on, for example, the surface velocity. Finally, we will discuss a detailed example that shows how geodynamic inversion can be used to constrain the rheology of the lithosphere.</br></br>To join the webinar, please connect at: https://zoom.us/j/955605274</br></br>For additional information, please visit https://geodynamics.org/cig/events/webinars/ .https://geodynamics.org/cig/events/webinars/ . +
CIG Webinar - Geodynamic inversion: Methods to link models with data & how that helps to obtain insights in the physics and rheology of the lithosphere +
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16:32:55, 16 April 2020 +
NO STATE +
Geodynamics Focus Research Group +
