10.5880/GFZ.2.3.2019.008 eng dataset GFZ German Research Centre for Geosciences datapub@gfz-potsdam.de http://www.gfz-potsdam.de Helmholtz-Centre Potsdam - GFZ German Research Centre for Geosciences Helmholtz-Centre Potsdam - GFZ German Research Centre for Geosciences pointOfContact 2021-01-07 urn:ogc:def:crs:EPSG:4326 CORBASS - CORrelation Based Archeomagnetic SnapShot model 2021-01-07 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 GFZ Data Services publisher 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 analysis > data analysis GEMET - INSPIRE themes, version 1.0 publication EARTH SCIENCE > SOLID EARTH > GEOMAGNETISM > PALEOMAGNETISM EARTH SCIENCE SERVICES > DATA ANALYSIS AND VISUALIZATION > STATISTICAL APPLICATIONS NASA/GCMD Earth Science Keywords 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 10.5880/fidgeo.2019.033 DOI References 10.1093/gji/ggaa336 DOI IsDocumentedBy 10.5880/GFZ.2.3.2020.006 DOI IsContinuedBy https://git.gfz-potsdam.de/sec23/korte/corbass URL IsVariantFormOf eng geoscientificInformation http://doi.org/10.5880/GFZ.2.3.2019.008 WWW:LINK-1.0-http--link Data Access - DOI Data Access - DOI information