Report of the IAU/IAG Joint Working Group on Theory of Earth Rotation and Validation

Autor: Juan Getino, Alberto Escapa, Richard S. Gross, Robert Heinkelmann, José M. Ferrándiz, Aleksander Brzeziński

Publikováno v: RUA. Repositorio Institucional de la Universidad de Alicante
Universidad de Alicante (UA)
International Association of Geodesy Symposia ISBN: 9783031098567

This report focuses on some selected scientific outcomes of the activities developed by the IAU/IAG Joint Working Group on Theory of Earth rotation and validation along the term 2015–2019. It is based on its end-of-term report to the IAG Commission

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e90b969b4a3d8dc876f4cd9d4f98a84
http://hdl.handle.net/10045/109332

Consistency Problems in the Improvement of the IAU Precession–Nutation Theories: Effects of the Dynamical Ellipticity Differences

Autor: José M. Ferrándiz, Alberto Escapa, Tomás Baenas, Juan F. Navarro, Juan Getino, Santiago Belda Palazón

Publikováno v: RUA. Repositorio Institucional de la Universidad de Alicante
Universidad de Alicante (UA)

The complexity of the modeling of the rotational motion of the Earth in space has produced that no single theory has been adopted to describe it in full. Hence, it is customary using at least a theory for precession and another one for nutation. The

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c792eb4e12f38f1f1bda8b3570fed29
https://doi.org/10.1007/s00024-015-1154-2

Contributions of the Elasticity to the Precession of a Two-Layer Earth Model

Autor: Tomás Baenas, Juan Getino, José M. Ferrándiz, Juan F. Navarro, Alberto Escapa

Publikováno v: RUA. Repositorio Institucional de la Universidad de Alicante
Universidad de Alicante (UA)

We focus on the updating of a specific contribution to the precession of the equator in longitude, usually named as “second order.” It stems from the crossing of certain terms of the lunisolar gravitational potential. The IAU2006 precession theor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51179c1bff2a88840357aceec3fe3dd8
http://hdl.handle.net/10045/73688

Limitations of the IAU2000 nutation model accuracy due to the lack of Oppolzer terms of planetary origin

Autor: José M. Ferrándiz, Juan F. Navarro, Juan Getino, María del Carmen Martínez-Belda, Alberto Escapa

Publikováno v: RUA. Repositorio Institucional de la Universidad de Alicante
Universidad de Alicante (UA)

Context. The current IAU2000 nutation model performed different approximations, one of them being that the Oppolzer terms associated to the planetary perturbations of the nutations were assumed to be smaller than 5 μas and thus were neglected. At pr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb35460de91e945b57ac6a9b698ea1d0
https://doi.org/10.1051/0004-6361/201730840

Indirect effect of the triaxiality in the Hamiltonian theory for the rigid Earth nutations

Autor: José M. Ferrándiz, Alberto Escapa, Juan Getino

Publikováno v: ResearcherID

In this investigation we determine a new contribution to the nutation series due to an indirect eect of the triaxiality of the rigid Earth. We undertake this work in the context of the Hamiltonian theory for the rigid Earth, developed by Kinoshita (1

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34ab74dfc248b786a3cac743224d7537
https://doi.org/10.1051/0004-6361:20020734