Bootstrapping Swarm and observatory data to generate candidates for the DGRF and IGRF-13

F. Javier Pavón-Carrasco, Santiago Marsal, J. Miquel Torta, Manuel Catalán, Fátima Martín-Hernández, J. Manuel Tordesillas

Producció científica: Article en revista indexadaArticleAvaluat per experts

4 Cites (Scopus)


As posted by the Working Group V of the International Association of Geomagnetism and Aeronomy (IAGA), the 13th generation of the International Geomagnetic Reference Field (IGRF) has been released at the end of 2019. Following IAGA recommendations, in this work we present a candidate model for the IGRF-13, for which we have used the available Swarm satellite and geomagnetic observatory ground data for the last year. In order to provide the IGRF-13 candidate, we have extrapolated the Gauss coefficients of the main field and its secular variation to January 1st, 2020. In addition, we have generated a Definitive Geomagnetic Reference Field model for 2015.0 using the same modelling approach, but focussed on a 1-year time window of data centred on 2015.0. To jointly model both satellite and ground data, we have followed the classical protocols and data filters applied in geomagnetic field modelling. Novelty arrives from the application of bootstrap analysis to solve issues related to the inhomogeneity of the spatial and temporal data distributions. This new approach allows the estimation of not only the Gauss coefficients, but also their uncertainties.[Figure not available: see fulltext.].

Idioma originalAnglès
Número d’article152
RevistaEarth, Planets and Space
Estat de la publicacióPublicada - 1 de des. 2020


Navegar pels temes de recerca de 'Bootstrapping Swarm and observatory data to generate candidates for the DGRF and IGRF-13'. Junts formen un fingerprint únic.

Com citar-ho