English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/121850
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Analysis of observations backing up the existence of VLF and ionospheric TEC anomalies before the Mw6.1 earthquake in Greece, January 26, 2014

AutorSánchez-Dulcet, Francisco; Rodríguez-Bouza, M.; Silva, H. G.; Herraiz Sarachaga, Miguel ; Bezzeghoud, M.; Biagi, P. F.
Palabras claveLithosphere–atmosphere–ionosphere coupling
Earthquake precursors
Very-low-frequency radio transmissions
TEC anomaly
Fecha de publicación28-ago-2015
CitaciónPhysics and Chemistry of the Earth, Parts A/B/C, [Available online 28 August 2015 - In Press], (2015)
ResumenThe present work integrates ground-based ionosphere measurements using very-low-frequency radio transmissions with satellite measurements of the total electron content to draw common conclusions about the possible impact that the Mw6.1 earthquake that took place in Greece on January 26, 2014, had on the ionosphere. Very-low-frequency radio signals reveal the existence of an ∼4-day anomaly in the wavelet spectra of the signals received inside the earthquake preparation zone and a significant increase in the normalized variance of the signals prior to the earthquake (approximately 1 day before). Through total electron content analysis, it was possible to identify a clear anomaly from 15:00 until 20:00 UT on the day before the earthquake that appears again on the day of the earthquake between 07:00 UT and 08:00 UT. The anomalous values reach TEC∗Sigma ∼4.36 and 3.11, respectively. Their spatial and temporal distributions give grounds to assume a possible link with the earthquake preparation. The geomagnetic, solar and weather conditions during the considered period are presented and taken into account. This work is an initial and original step towards a multi-parameter approach to the problem of the possible earthquake-related effects on the ionosphere joining observations made from both ground stations and satellites. A well-founded knowledge of these phenomena is clearly necessary before dealing with their application to earthquake prediction purposes.
Versión del editorhttp://dx.doi.org/10.1016/j.pce.2015.07.002
Aparece en las colecciones: (IGEO) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
PCE_2015_SanchezDulcet.pdf1,08 MBAdobe PDFVista previa
Mostrar el registro completo

Artículos relacionados:

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.