Measurement of Earth's Nutation by VLBI: Direct Estimates from VLBI Delays and a Discussion on the Error
hal.structure.identifier | Centre National de la Recherche Scientifique [CNRS] | |
dc.contributor.author | LAMBERT, S. | |
dc.contributor.author | NURUL-HUDA, I. | |
dc.contributor.author | ZIEGLER, Y. | |
dc.contributor.author | RICHARD, J.-Y. | |
dc.contributor.author | LIU, N. | |
hal.structure.identifier | M2A 2019 | |
dc.contributor.author | GATTANO, C. | |
hal.structure.identifier | Dynamique globale et déformation active (IPGS) [IPGS-DGDA] | |
dc.contributor.author | ROSAT, S. | |
dc.contributor.author | BIZOUARD, C. | |
dc.date.conference | 2018-06-03 | |
dc.description.abstractEn | Accurate measurements of the Earth nutation by VLBI provide insights into the deformability of and the coupling mechanisms at the core-mantle and core-inner core boundaries. We propose here to adjust nutation amplitudes directly to VLBI delays, as opposed to the traditional method consisting of fitting nutation amplitudes to time-domain nutation series. However, the complexity of the VLBI analysis chain makes the formal error on the parameters somehow obscure and disconnected from a realistic error based on, e.g., empirical tests of robustness and errors on models. In this work, we address some striking differences between formal and empirical errors. | |
dc.language.iso | en | |
dc.title.en | Measurement of Earth's Nutation by VLBI: Direct Estimates from VLBI Delays and a Discussion on the Error | |
dc.type | Communication dans un congrès | |
dc.subject.hal | Planète et Univers [physics]/Astrophysique [astro-ph]/Instrumentation et méthodes pour l'astrophysique [astro-ph.IM] | |
bordeaux.country | NO | |
bordeaux.conference.city | svalbard | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-02278150 | |
hal.version | 1 | |
hal.invited | non | |
hal.proceedings | non | |
hal.conference.end | 2018-06-06 | |
hal.popular | non | |
hal.audience | Internationale | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-02278150v1 | |
bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.au=LAMBERT,%20S.&NURUL-HUDA,%20I.&ZIEGLER,%20Y.&RICHARD,%20J.-Y.&LIU,%20N.&rft.genre=unknown |
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