Análisis del transporte y bombeo de Ekman en el Caribe colombiano entre 1999 y 2009

Abstract

Se realizó el análisis de la distribución espacial y temporal del transporte y bombeo de Ekman en la cuenca Caribe colombiana con datos de viento del sensor SeaWinds, entre noviembre de 1999 y noviembre de 2009. Los resultados indicaron la influencia del chorro de baja altura del Caribe en ambas variables, las cuales mostraron un ciclo estacional. El bombeo promedio fue positivo cerca a las costas de Colombia mientras que en el norte de la cuenca se observó hundimiento de agua. La dirección dominante del transporte de Ekman fue hacia el norte y noroeste, registrando una magnitud máxima relativa en el oriente de la cuenca.

Sea surface temperature in continental and insular coastal Colombian waters: observations of the recent past and near-term numerical projections

“…4) are situated where the ocean responded to global and regional processes, but not to local ones. Atmospheric forcing introduced into ROMS allows to simulation in CCS the general characteristics identified by Ruiz-Ochoa et al (2012) and Pareja et al (2013) as CWP and CCP (Fig. 3a) but soften the influence of local meteorological and continental factors that have been described by Restrepo & Kjerfve (2004), Poveda et al (2006) and Whyte et al (2008), among others.…”

“…On the other hand, the deviation measures in RI showed a perfect fit between the observed and modeled series, also reflected in the SST amplitude values' similarity (Table 1), maybe since RI is located in the central sector of the Caribbean coast. In this sector, the distribution of northeast-southwest SSTs parallel to the coast (Pareja et al 2013) represents a continuous mixing of two surface water masses: cold water from the north-east (LGU) and warm water from the southwest of the Caribbean coast (coming from Panama). Around RI, the mixing waters (Rodríguez et al 2010) soften SST oscillations which could be simulated with ROMS.…”

“…2b) is dominated by the Caribbean Current (CC), which flows northwestward through the study area from the east (Andrade 2015). Over the Mosquitos Gulf is located the Colombia-Panama Gyre (CPG), which flows counterclockwise (Andrade et al 2003), enclosing warm waters in the southwest of the Caribbean Sea (Pareja et al 2013). From this part of the region, the Panama Colombia Counter Current (PCCC) flows easterly along the Colombian coast clockwise (Andrade et al 2003).…”

“…From this part of the region, the Panama Colombia Counter Current (PCCC) flows easterly along the Colombian coast clockwise (Andrade et al 2003). The PCCC carries warm waters forming a mixing zone when approaching the Magdalena River's mouth around 78°W (Pareja et al 2013). Over the CPB, the Colombian Current (CoC) flows to the north next to Colombia's coast (Wooster 1959).…”

Hydrokinetic Energy and Transient Accelerations of Marine Currents in Colombian Nearshore Waters

“…Marine currents have not yet been characterized for energy purposes in the nearshore areas of the Colombian Caribbean, but there exist reports of marine currents for marine energy extraction in deep waters [23]. The Colombian Caribbean coast is governed by mesoscale winds, such as the Caribbean low-level jet (CLLJ), which affects the circulation of the ocean current, particularly the counter Caribbean current (CCC) and the Panama Colombia counter current (PCCC) [24], where the hydrodynamics of these important currents modulate the energy flux [25], upwelling processes and longshore currents in the area [26] Considering the need to promote the development of marine energy technologies, it is important to identify the presence of transient current accelerations that could affect marine power generation and the structural health of these technologies. However, there exists the limitation of measuring waves and currents with high frequency and time horizons > 6 months, which makes the identification of these short-term transient waves difficult.…”