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Juan Jesús Gomiz-Pascual
Department of Applied Physics Faculty of Marine and Environmental Sciences Marine Research Institute (INMAR) International Campus of Excellence of the Sea (CEI·MAR) University of Cadiz Cadiz Spain

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Research article
Published: 04 February 2021 in Journal of Geophysical Research: Oceans
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The main objective of the present study is to gain insight into the response of the Atlantic Jet (AJ) to the atmospheric forcing, in order to understand the hydrodynamic processes behind its disconnection from the Western Alboran Gyre (WAG) and the eastward displacement of the latter. An analysis was carried out based on observations of High Frequency Radar (HFR) derived currents and sea level, numerical model simulations and satellite imagery, with particular focus on the events of intense and endured easterlies. Among the main factors that characterize the atmospheric forcing linked to intense and persistent easterly wind events, the conjugation of the direct local wind forcing effect on the Atlantic Inflow (AI) on the eastern side of the Strait of Gibraltar and the response of the coastal waters in the northwestern (NW) corner of the Alboran Sea to the wind forcing over the Alboran Sea are of particular interest. In addition, the effect of the elevation surges in the Strait coming from the western Mediterranean Sea on reducing the AI intensity must be taken into account. These surges appear in coincidence with the establishment of persistent and intense easterlies over the Alboran Sea. The alteration of the AJ‐WAG system in response to this forcing causes important changes in the phytoplankton distributions in the Alboran Sea. After the events of persistent and intense easterlies the phytoplankton accumulations in the NW Alboran Sea are displaced offshore and the phytoplankton transported with the AJ is injected towards the central zone of the WAG.

ACS Style

M. Bolado‐Penagos; I. Sala; J. J. Gomiz‐Pascual; J. Romero‐Cózar; D. González‐Fernández; J. Reyes‐Pérez; A. Vázquez; M. Bruno. Revising the Effects of Local and Remote Atmospheric Forcing on the Atlantic Jet and Western Alboran Gyre Dynamics. Journal of Geophysical Research: Oceans 2021, 126, 1 .

AMA Style

M. Bolado‐Penagos, I. Sala, J. J. Gomiz‐Pascual, J. Romero‐Cózar, D. González‐Fernández, J. Reyes‐Pérez, A. Vázquez, M. Bruno. Revising the Effects of Local and Remote Atmospheric Forcing on the Atlantic Jet and Western Alboran Gyre Dynamics. Journal of Geophysical Research: Oceans. 2021; 126 (2):1.

Chicago/Turabian Style

M. Bolado‐Penagos; I. Sala; J. J. Gomiz‐Pascual; J. Romero‐Cózar; D. González‐Fernández; J. Reyes‐Pérez; A. Vázquez; M. Bruno. 2021. "Revising the Effects of Local and Remote Atmospheric Forcing on the Atlantic Jet and Western Alboran Gyre Dynamics." Journal of Geophysical Research: Oceans 126, no. 2: 1.

Journal article
Published: 28 November 2020 in Estuarine, Coastal and Shelf Science
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An analysis is presented of the submesoscale tidally-induced anticyclonic eddies formed at the eastern mouth of the Strait of Gibraltar and their role in explaining mesoscale features of the Atlantic Jet – Western Alboran Gyre (AJ-WAG) system. These eddies have been identified for the first time using an observational approach based on the analysis of High Frequency Radar (HFR) derived surface currents on the eastern mouth of the Strait which has been complemented with the analysis of Sea Surface Temperature (SST) satellite images. It is found that the major source of positive vorticity to the AJ is provided by its interaction with these anticyclonic eddies which in turn help maintain the water feeding of the upper branch of the WAG. This new role in maintaining the WAG is added to others previously recognized by other authors based on the supply of negative vorticity that these eddies provide to the whole WAG. In addition, these tidally-induced eddies may contribute to the destabilization of the AJ-WAG system when strong and persistent easterly winds coincide with periods of high tidal current amplitude. In these cases, meteorological forcing produces a weak and southward deflected AJ almost disconnected from a displaced eastward WAG. The WAG in turn is being flattened by an overdeveloped North Western Cyclonic Gyre (NWCG) that may be favored by the action of the mentioned eddies.

ACS Style

Jeanette Romero-Cózar; Jamal Chioua; Marina Bolado-Penagos; Julio Reyes-Pérez; Juan Jesús Gómiz-Pascual; Águeda Vázquez; Sara Sirviente; Miguel Bruno. Tidally-induced submesoscale features in the atlantic jet and Western Alboran Gyre. A study based on HF radar and satellite images. Estuarine, Coastal and Shelf Science 2020, 250, 107122 .

AMA Style

Jeanette Romero-Cózar, Jamal Chioua, Marina Bolado-Penagos, Julio Reyes-Pérez, Juan Jesús Gómiz-Pascual, Águeda Vázquez, Sara Sirviente, Miguel Bruno. Tidally-induced submesoscale features in the atlantic jet and Western Alboran Gyre. A study based on HF radar and satellite images. Estuarine, Coastal and Shelf Science. 2020; 250 ():107122.

Chicago/Turabian Style

Jeanette Romero-Cózar; Jamal Chioua; Marina Bolado-Penagos; Julio Reyes-Pérez; Juan Jesús Gómiz-Pascual; Águeda Vázquez; Sara Sirviente; Miguel Bruno. 2020. "Tidally-induced submesoscale features in the atlantic jet and Western Alboran Gyre. A study based on HF radar and satellite images." Estuarine, Coastal and Shelf Science 250, no. : 107122.

Journal article
Published: 30 December 2019 in Water
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Modeling is a useful way to understand human and climate change impacts on the water resources of agricultural watersheds. Calibration and validation methodologies are crucial in forecasting assessments. This study explores the best calibration methodology depending on the level of hydrological alteration due to human-derived stressors. The Soil and Water Assessment Tool (SWAT) model is used to evaluate hydrology in South-West Europe in a context of intensive agriculture and water scarcity. The Index of Hydrological Alteration (IHA) is calculated using discharge observation data. A comparison of two SWAT calibration methodologies are done; a conventional calibration (CC) based on recorded in-stream water quality and quantity and an additional calibration (AC) adding crop managements practices. Even if the water quality and quantity trends are similar between CC and AC, water balance, irrigation and crop yields are different. In the context of rainfall decrease, water yield decreases in both CC and AC, while crop productions present opposite trends (+33% in CC and −31% in AC). Hydrological performance between CC and AC is correlated to IHA: When the level of IHA is under 80%, AC methodology is necessary. The combination of both calibrations appears essential to better constrain the model and to forecast the impact of climate change or anthropogenic influences on water resources.

ACS Style

Roxelane Cakir; Mélanie Raimonet; Sabine Sauvage; Javier Paredes-Arquiola; Youen Grusson; Laure Roset; Maite Meaurio; Enrique Navarro; Miguel Sevilla Callejo; Juan Luis Lechuga-Crespo; Juan Jesús Gomiz Pascual; Jose María Bodoque; José Miguel Sánchez-Pérez. Hydrological Alteration Index as an Indicator of the Calibration Complexity of Water Quantity and Quality Modeling in the Context of Global Change. Water 2019, 12, 115 .

AMA Style

Roxelane Cakir, Mélanie Raimonet, Sabine Sauvage, Javier Paredes-Arquiola, Youen Grusson, Laure Roset, Maite Meaurio, Enrique Navarro, Miguel Sevilla Callejo, Juan Luis Lechuga-Crespo, Juan Jesús Gomiz Pascual, Jose María Bodoque, José Miguel Sánchez-Pérez. Hydrological Alteration Index as an Indicator of the Calibration Complexity of Water Quantity and Quality Modeling in the Context of Global Change. Water. 2019; 12 (1):115.

Chicago/Turabian Style

Roxelane Cakir; Mélanie Raimonet; Sabine Sauvage; Javier Paredes-Arquiola; Youen Grusson; Laure Roset; Maite Meaurio; Enrique Navarro; Miguel Sevilla Callejo; Juan Luis Lechuga-Crespo; Juan Jesús Gomiz Pascual; Jose María Bodoque; José Miguel Sánchez-Pérez. 2019. "Hydrological Alteration Index as an Indicator of the Calibration Complexity of Water Quantity and Quality Modeling in the Context of Global Change." Water 12, no. 1: 115.

Journal article
Published: 11 November 2019 in Progress in Oceanography
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The present manuscript analyses the role of the submesoscale hydrodynamic patterns close to the coastal margin of the Strait of Gibraltar in the exchange of properties between the western side of the Strait and the western Alboran Sea. To achieve this goal a multi-approach analysis was performed using several datasets obtained during an oceanographic survey, drifters, satellite data and numerical simulation experiments. Three areas were identified: Trafalgar, Camarinal and the north-western corner of the Alboran Sea, in which the water exhibits a high residence time and relatively high phytoplankton concentrations. In addition, evidence of transport processes that take place along the coastal margin is shown between Trafalgar and the Alboran Sea. These transport processes seem to connect the phytoplankton that grows in the Gulf of Cadiz strip, in response to the nutrients supplied by the Guadalquivir River, to the phytoplankton populations in the western Alboran Sea. Furthermore, the transport of properties along this margin is clearly disrupted by strong and persistent easterly winds.

ACS Style

Marina Bolado-Penagos; Carlos J. González; Jamal Chioua; Iria Sala; Juan Jesús Gomiz-Pascual; Águeda Vázquez; Miguel Bruno. Submesoscale processes in the coastal margins of the Strait of Gibraltar. The Trafalgar – Alboran connection. Progress in Oceanography 2019, 181, 102219 .

AMA Style

Marina Bolado-Penagos, Carlos J. González, Jamal Chioua, Iria Sala, Juan Jesús Gomiz-Pascual, Águeda Vázquez, Miguel Bruno. Submesoscale processes in the coastal margins of the Strait of Gibraltar. The Trafalgar – Alboran connection. Progress in Oceanography. 2019; 181 ():102219.

Chicago/Turabian Style

Marina Bolado-Penagos; Carlos J. González; Jamal Chioua; Iria Sala; Juan Jesús Gomiz-Pascual; Águeda Vázquez; Miguel Bruno. 2019. "Submesoscale processes in the coastal margins of the Strait of Gibraltar. The Trafalgar – Alboran connection." Progress in Oceanography 181, no. : 102219.

Journal article
Published: 01 May 2018 in Estuarine, Coastal and Shelf Science
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High Amplitude Internal Waves (HAIWs) are physical processes observed in the Strait of Gibraltar (the narrow channel between the Atlantic Ocean and the Mediterranean Sea). These internal waves are generated over the Camarinal Sill (western side of the strait) during the tidal outflow (toward the Atlantic Ocean) when critical hydraulic conditions are established. HAIWs remain over the sill for up to 4 h until the outflow slackens, being then released (mostly) towards the Mediterranean Sea. These have been previously observed using Synthetic Aperture Radar (SAR), which captures variations in surface water roughness. However, in this work we use high resolution optical remote sensing, with the aim of examining the influence of HAIWs on biogeochemical processes. We used hyperspectral images from the Hyperspectral Imager for the Coastal Ocean (HICO) and high spatial resolution (10 m) images from the MultiSpectral Instrument (MSI) onboard the Sentinel-2A satellite. This work represents the first attempt to examine the relation between internal wave generation and the water constituents of the Camarinal Sill using hyperspectral and high spatial resolution remote sensing images. This enhanced spatial and spectral resolution revealed the detailed biogeochemical patterns associated with the internal waves and suggests local enhancements of productivity associated with internal waves trains.

ACS Style

Gabriel Navarro; Jorge Vicent; Isabel Caballero; Jesús Gómez-Enri; Edward P. Morris; Neus Sabater; Diego Macias; Marina Bolado-Penagos; Juan Jesús Gomiz; Miguel Bruno; Rui Caldeira; Águeda Vázquez. Improving the analysis of biogeochemical patterns associated with internal waves in the strait of Gibraltar using remote sensing images. Estuarine, Coastal and Shelf Science 2018, 204, 1 -13.

AMA Style

Gabriel Navarro, Jorge Vicent, Isabel Caballero, Jesús Gómez-Enri, Edward P. Morris, Neus Sabater, Diego Macias, Marina Bolado-Penagos, Juan Jesús Gomiz, Miguel Bruno, Rui Caldeira, Águeda Vázquez. Improving the analysis of biogeochemical patterns associated with internal waves in the strait of Gibraltar using remote sensing images. Estuarine, Coastal and Shelf Science. 2018; 204 ():1-13.

Chicago/Turabian Style

Gabriel Navarro; Jorge Vicent; Isabel Caballero; Jesús Gómez-Enri; Edward P. Morris; Neus Sabater; Diego Macias; Marina Bolado-Penagos; Juan Jesús Gomiz; Miguel Bruno; Rui Caldeira; Águeda Vázquez. 2018. "Improving the analysis of biogeochemical patterns associated with internal waves in the strait of Gibraltar using remote sensing images." Estuarine, Coastal and Shelf Science 204, no. : 1-13.