Testing Geomagnetic Reference Field models for 1990-2000 with data from the Trelew Geomagnetic Observatory, Argentina

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Autor principal: Marta E. Ghidella
Formato: Artículo científico
Lenguaje:en
Publicado: Universidad Nacional Autónoma de México 2003
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author Marta E. Ghidella
author_facet Marta E. Ghidella
contents Testing Geomagnetic Reference Field models for 1990-2000 with data from the Trelew Geomagnetic Observatory, Argentina Marta E. Ghidella Julio C. Gianibelli Jacqueline Köhn Ciencias de la Tierra IGRF secular variation Trelew observatory (Argentina) Every five years a new International Geomagnetic Reference Field (IGRF) model is released and the secular variation forthe previous period is updated, producing the definitive DGRF model. Once a DGRF is released, the previously calculated magneticanomalies are updated. We show the importance of this correction for the 1995-2000 period, in which the DGRF-IGRFdifference is anomalously large. We document the validity of the correction by using data from the permanent geomagneticObservatory of Trelew, Argentina. 2003 artículo científico 0016-7169 https://www.redalyc.org/articulo.oa?id=56842406 en http://www.redalyc.org/revista.oa?id=568 Geofísica Internacional application/pdf Universidad Nacional Autónoma de México Geofísica Internacional (México) Num.4 Vol.42
format Artículo científico
id redalyc_56842406
institution Redalyc
language en
publishDate 2003
publisher Universidad Nacional Autónoma de México
spellingShingle Testing Geomagnetic Reference Field models for 1990-2000 with data from the Trelew Geomagnetic Observatory, Argentina
Marta E. Ghidella
Ciencias de la Tierra
IGRF
secular variation
Trelew observatory (Argentina)
Testing Geomagnetic Reference Field models for 1990-2000 with data from the Trelew Geomagnetic Observatory, Argentina Marta E. Ghidella Julio C. Gianibelli Jacqueline Köhn Ciencias de la Tierra IGRF secular variation Trelew observatory (Argentina) Every five years a new International Geomagnetic Reference Field (IGRF) model is released and the secular variation forthe previous period is updated, producing the definitive DGRF model. Once a DGRF is released, the previously calculated magneticanomalies are updated. We show the importance of this correction for the 1995-2000 period, in which the DGRF-IGRFdifference is anomalously large. We document the validity of the correction by using data from the permanent geomagneticObservatory of Trelew, Argentina. 2003 artículo científico 0016-7169 https://www.redalyc.org/articulo.oa?id=56842406 en http://www.redalyc.org/revista.oa?id=568 Geofísica Internacional application/pdf Universidad Nacional Autónoma de México Geofísica Internacional (México) Num.4 Vol.42
title Testing Geomagnetic Reference Field models for 1990-2000 with data from the Trelew Geomagnetic Observatory, Argentina
topic Ciencias de la Tierra
IGRF
secular variation
Trelew observatory (Argentina)
url https://www.redalyc.org/articulo.oa?id=56842406