Análisis de métodos de muestreo hidrológico en la zona frontal de Cabo Verde en noviembre de 2017
DOI:
https://doi.org/10.3989/scimar.05509.090Palabras clave:
masas de agua, vehículo submarino autónomo (gliders), vehículo operado remotamente (SeaSoar), modelos numéricos, análisis wavelet, estructuras de mesoescalaResumen
El Frente de Cabo Verde (CVF), en el Atlántico Norte oriental, es una región compleja donde el Agua Central del Atlántico Norte, más cálida, interactúa con el Agua Central del Atlántico Sur, más fría, formando un marcado gradiente termohalino. El CVF muestra gran variabilidad debido a intrusiones laterales, filamentos del sistema de afloramiento y remolinos a mesoescala y submesoescala. En noviembre de 2017, el proyecto FLUXES realizó un extenso muestreo en el CVF mediante mediciones de Conductividad, Temperatura y Profundidad (CTD) desde un barco, un SeaSoar y dos gliders profundos equipados con instrumentos bioquímicos y dinámicos. Este artículo tiene como objetivo comparar las escalas espaciales detectadas por los diferentes métodos de muestreo en el CVF, incluyendo los resultados del modelo numérico de Copernicus. Se empleó el análisis wavelet para evaluar cuantitativamente las escalas resueltas por cada método. Los resultados destacan la capacidad del CTD para alcanzar profundidades de hasta 1500 m, la rapidez del SeaSoar, con un tiempo de muestreo de 14 horas, y las capacidades específicas tanto del glider como del SeaSoar para captar escalas pequeñas entre 1 y 5 km. El glider supera al SeaSoar en resolución espacial, mostrando su eficacia en la detección de estructuras más pequeñas.
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