Detection of a New Large Free Core Nutation Phase Jump
Por favor, use este identificador para citar o enlazar este ítem:
http://hdl.handle.net/10045/126399
Título: | Detection of a New Large Free Core Nutation Phase Jump |
---|---|
Autor/es: | Malkin, Zinovy | Belda, Santiago | Modiri, Sadegh |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Matemática Aplicada |
Palabras clave: | Earth’s rotation | Celestial pole motion | Free core nutation (FCN) | FCN phase variations | VLBI |
Fecha de publicación: | 9-ago-2022 |
Editor: | MDPI |
Cita bibliográfica: | Malkin Z, Belda S, Modiri S. Detection of a New Large Free Core Nutation Phase Jump. Sensors. 2022; 22(16):5960. https://doi.org/10.3390/s22165960 |
Resumen: | We announce the detection of a new large jump in the phase of the free core nutation (FCN). This is only the second such large FCN phase jump in more than thirty years of FCN monitoring by means of a very long baseline interferometry (VLBI) technique. The new event was revealed and confirmed by analyzing two FCN models derived from a long-time series of VLBI observations. The jump started in 2021 and is expected to last until the late fall of 2022. The amplitude of the phase jump is expected to be approximately 3 rad, which is as much as 1.5 times larger than the first phase jump in 1999–2000. A connection of the new FCN phase jump with the recent geomagnetic jerk started in 2020 is suggested. |
Patrocinador/es: | Santiago Belda was partially supported by Generalitat Valenciana (SEJIGENT/2021/001), the European Union–Next Generation EU (ZAMBRANO 21-04) and Ministerio de Ciencia e Innovación (Spanish Project PID2020-119383GB-I00). |
URI: | http://hdl.handle.net/10045/126399 |
ISSN: | 1424-8220 |
DOI: | 10.3390/s22165960 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.3390/s22165960 |
Aparece en las colecciones: | Personal Investigador sin Adscripción a Grupo |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Malkin_etal_2022_Sensors.pdf | 4,54 MB | Adobe PDF | Abrir Vista previa | |
Este ítem está licenciado bajo Licencia Creative Commons