Jesus Cisneros-Aguirre

Universidad de Las Palmas de Gran Canaria | ULPGC · Department of Physics

Publicación online disponible en: http://www.icm.csic.es/scimar/index.php We discuss the experimental methodology and present the results of several experiments on the onset and growth of instabilities in stratified shear flow. Our results include the assessment of the effective diffusivity prior to the development of the Kelvin-Helmholtz (K-H) typ...

Del 18 al 29 de octubre de 2010 se llevó a cabo la campaña oceanográfica PROMECA en la parte occidental de la Cuenca Canaria con en el buque oceanográfico García del Cid, figura 1. Uno de los objetivos principales del proyecto se centra en el estudio del sistema de afloramiento noroccidental africano en la región de Cabo Ghir. En dicha región se re...

Observations of surface drifters launched over the continental slope of Portugal (Bay of Setúbal) are analyzed with the Rotary Wavelet Spectrum Method to study the contribution of mesoscale activity to near-inertial variability. Drifter data used here are part of the MREA04 (Maritime Rapid Environmental Assessment 2004) sea trial carried out by the...

This work presents observations of diurnal–inertial motions forced by a sea–land breeze regime near critical latitudes (30∘±10∘N/S) for resonance on the Portuguese shelf. Wind conditions were determined with an Aanderaa meteorological buoy placed in the Bay of Setúbal during the Maritime Rapid Environmental Assessment 2004 (MREA04) sea trial. Curre...

The deployment of WARMER (WAter Risk Management in EuRope) continuous monitoring platform at the Venice Lagoon was the second field test (duration of the field test: ca. 3 months) of the project and this study was conducted with the cooperation of Magistrato alle Acque di Venezia which maintains a continuous monitoring network (SAMANET) with ten st...

We examined whether adults of three species of sea urchins species (Diadema antillarum, Arbacia lixula, and Paracentrotus lividus) exhibit a consistent depth-dependent partitioning pattern on rocky reefs of the Canarian Archipelago (eastern Atlantic). Hydrodynamic experiments were carried out to quantify the resistance to flow-induced dislodgement...

We examined whether adults of three species of sea urchins species (Diadema antillarum, Arbacia lixula, and Paracentrotus lividus) exhibit a consistent depth-dependent partitioning pattern on rocky reefs of the Canarian Archipelago (eastern Atlantic). Hydrodynamic experiments were carried out to quantify the resistance to flow-induced dislodgement...

We present hydrographic data for several sections located along the African coastline and off Cape Ghir, carried out at times of weak surface winds (October 1995 and September 1997). The main sections are near the continental slope, at mean distances between 100 and 150 km from the coastline. North of Cape Ghir (31°N) the geostrophic transport (ref...

During Fall 1995 and Fall 1997 two hydrographic cruises were done with the RN Hespérides between the Iberian Peninsula and the Canary ArchipeIago, with special coverage of the Cape Ghir Filament region. XBT, CTD and ADCP measurements are reported for these cruises . Synoptic XBT measurements, using opportunify ships, were also taken along several s...

The variability of the Canary Current is investigated using bimonthly expandable bathythermograph sections from Gran Canaria Island to the African coast between November 1996 and September 1998. The geostrophic transport of the easternmost branch of the Canary Current is estimated by integrating the thermal wind equation using the layer of neutral...

Sea surface temperature (SST) images illustrate that the surface waters of the Strait of Gibraltar episodically become several degrees cooler than the surrounding waters in the Mediterranean Sea and Atlantic Ocean. It appears that such a variation cannot be due to skin warming effects, the main possible cause being that the flow becomes unstable an...

We present the results of numerical and experimental modelling of the generation of fine structure in stratified shear flow. The experiments are done in a 3 m long, 0.1 m wide and 0.35 m high tank which is stratified into two layers and tilted. Veloc- ity and density profiles are measured prior, during and shortly after the generation of Kelvin-Hel...