2024-03-29T11:53:26Zhttp://doidb.wdc-terra.org/oaip/oaioai:doidb.wdc-terra.org:67792021-01-07T11:53:38ZDOIDBDOIDB.GFZ
doi:10.5880/GFZ.2.3.2019.008
eng
GFZ German Research Centre for Geosciences
http://www.gfz-potsdam.de/
information
pointOfContact
2019-12-19
urn:ogc:def:crs:EPSG:4326
CORBASS - CORrelation Based Archeomagnetic SnapShot model
2019-12-19
revision
doi:10.5880/GFZ.2.3.2019.008
Schanner, Maximilian Arthus
GFZ German Research Centre for Geosciences, Potsdam, Germany
author
Mauerberger, Stefan
University of Potsdam, Institute of Mathematics, Potsdam, Germany
author
Due to poor global data coverage and large data uncertainties, Holocene magnetic field models are of limited resolution. The most commonly used modeling approach is based on an inversion strategy based on truncated spherical harmonics and does not provide uncertainty estimates. Focusing on snapshots of the magnetic field, the CORBASS (CORrelation Based Archeomagnetic SnapShot model) algorithm breaks with the tradition of truncated models by implementing a field model based on Gaussian processes (GP). This way regions covered well by data can be modeled with higher resolution, while areas of poor coverage remain uncertain. The GP approach provides a posterior covariance, together with the (mean) field model, which naturally serves as model uncertainty estimate. A full description of the model can be found in <TODO: reference to our upcoming paper>.
CORBASS is provided as a collection of python scripts together with an install file for a conda environment. This way CORBASS can be easily set up under various system dependencies. The gitlab page provides installation instructions, documentation and example notebooks and can be found under "Related Work" in the left panel of this page.
A static version of CORBASS is linked under "Files", again in the left panel of this page.
Complete
Schanner, Maximilian
GFZ German Research Centre for Geosciences, Potsdam, Germany
arthus@gfz-potsdam.de
pointOfContact
Mauerberger, Stefan
University of Potsdam, Institute of Mathematics, Potsdam, Germany
mauerber@uni-potsdam.de
pointOfContact
Bayesian Analysis
Correlation based modeling
Archeomagnetism
Snapshot Model
Gaussian Processes
EARTH SCIENCE SERVICES > DATA ANALYSIS AND VISUALIZATION > STATISTICAL APPLICATIONS
EARTH SCIENCE > SOLID EARTH > GEOMAGNETISM > PALEOMAGNETISM
NASA/GCMD Earth Science Keywords
publication
analysis > data analysis
GEMET - INSPIRE themes, version 1.0
2008-06-01
publication
GNU General Public License, Version 3, 29 June 2007 Copyright © 2019 Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany
GNU General Public License, Version 3, 29 June 2007 Copyright © 2019 Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany
https://gitext.gfz-potsdam.de/arthus/corbass/
URL
IsVariantFormOf
10.5880/fidgeo.2019.033
DOI
References
eng
http://dx.doi.org/doi:10.5880/GFZ.2.3.2019.008
WWW:LINK-1.0-http--link
Download
Download
download