Velocity and direction of Perú coastal trapped waves determination by spectral and corre-lation analysis

• Autores: Quispe Sánchez, Jorge, Rojas Acuña, Joel
• Formato: artículo
• Fecha de Publicación: 2017
• Institución: Universidad Nacional Mayor de San Marcos
• Repositorio: Revistas - Universidad Nacional Mayor de San Marcos
• Lenguaje: español
• OAI Identifier: oai:ojs.csi.unmsm:article/13551
• Enlace del recurso: https://revistasinvestigacion.unmsm.edu.pe/index.php/fisica/article/view/13551
• Nivel de acceso: acceso abierto
• Materia: Nivel del mar; ondas costeras atrapadas; densidad espectral; correlación; Sea level; coastal trapped waves; spectral density; correlation

The coastal trapped waves dominates the biological and physical process in the Perú and Chile coastal zone, affecting his variability, development and persistence. We using registered sea level data from La Libertad, Paita, Lobos de Afuera, Callao, San Juan, Arica and Antofagasta obtained by University of Hawaii Sea Level Center, determining the velocity and direction of coastal trapped waves applying spectral and correlation analysis techniques. The low frequency variations, less to 0.2 cicles of sea level per day, show a high spatial coherence and behave like non-dispersive waves which travel from North to South with a 250 km/day approximate velocity.