User profiles for Andreas Fichtner

Andreas Fichtner

- Verified email at erdw.ethz.ch - Cited by 10299

Andreas Fichtner

- Verified email at leuphana.de - Cited by 2176

[BOOK][B] Fundamentals of geophysics

W Lowrie, A Fichtner - 2020 - books.google.com
This enduringly popular undergraduate textbook has been thoroughly reworked and updated,
and now comprises twelve chapters covering the same breadth of topics as earlier editions…

[HTML][HTML] Distributed acoustic sensing of microseismic sources and wave propagation in glaciated terrain

…, P Paitz, M Köpfli, M Chmiel, A Fichtner - Nature …, 2020 - nature.com
Records of Alpine microseismicity are a powerful tool to study landscape-shaping processes
and warn against hazardous mass movements. Unfortunately, seismic sensor coverage in …

[BOOK][B] Full seismic waveform modelling and inversion

A Fichtner - 2010 - books.google.com
Recent progress in numerical methods and computer science allows us today to simulate
the propagation of seismic waves through realistically heterogeneous Earth models with …

[HTML][HTML] Full seismic waveform tomography for upper-mantle structure in the Australasian region using adjoint methods

A Fichtner, BLN Kennett, H Igel… - Geophysical Journal …, 2009 - academic.oup.com
We present a full seismic waveform tomography for upper-mantle structure in the Australasian
region. Our method is based on spectral-element simulations of seismic wave propagation …

The adjoint method in seismology: I. Theory

A Fichtner, HP Bunge, H Igel - Physics of the Earth and Planetary Interiors, 2006 - Elsevier
The adjoint method is a powerful tool in geophysics that permits the computation of the exact
first derivative of a physical observable or an associated objective function with respect to …

{It's} a hard lock life: A field study of smartphone ({Un) Locking} behavior and risk perception

M Harbach, E Von Zezschwitz, A Fichtner… - 10th symposium on …, 2014 - usenix.org
A lot of research is being conducted into improving the usability and security of phone-unlocking.
There is however a severe lack of scientific data on users’ current unlocking behavior …

Multiscale full waveform inversion

A Fichtner, J Trampert, P Cupillard… - Geophysical Journal …, 2013 - academic.oup.com
We develop and apply a full waveform inversion method that incorporates seismic data on a
wide range of spatio-temporal scales, thereby constraining the details of both crustal and …

Theoretical background for continental-and global-scale full-waveform inversion in the time–frequency domain

A Fichtner, BLN Kennett, H Igel… - Geophysical Journal …, 2008 - academic.oup.com
We propose a new approach to full seismic waveform inversion on continental and global
scales. This is based on the time–frequency transform of both data and synthetic seismograms …

[HTML][HTML] The Iceland–Jan Mayen plume system and its impact on mantle dynamics in the North Atlantic region: evidence from full-waveform inversion

F Rickers, A Fichtner, J Trampert - Earth and Planetary Science Letters, 2013 - Elsevier
We present a high-resolution S-velocity model of the North Atlantic region, revealing structural
features in unprecedented detail down to a depth of 1300km. The model is derived using …

Species richness stabilizes productivity via asynchrony and drought-tolerance diversity in a large-scale tree biodiversity experiment

…, KE Barry, FJ Bongers, H Bruelheide, A Fichtner… - Science …, 2021 - science.org
Extreme climatic events threaten forests and their climate mitigation potential globally.
Understanding the drivers promoting ecosystem stability is therefore considered crucial for …