Strengths and weaknesses of the CMEMS forecasted and reanalyzed solutions for the Iberia–Biscay–Ireland (IBI) waters

Aznar, R.; Sotillo, Marcos García; Cailleau, S.; Lorente, Pablo; Levier, Bruno; Amo-Baladrón, Arancha; Reffray, Guillaume; Álvarez-Fanjul, Enrique

doi:10.1016/j.jmarsys.2016.02.007

Cited by 33 publications

(30 citation statements)

References 28 publications

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“…South of the outflow stream, results sug-Á. de Pascual-Collar et al: Regional circulation patterns of Mediterranean Outflow Water gest the existence of an eastward countercurrent that provides the external water input required to feed the intense entrainment processes generated by MOW in the region (Ambar and Howe, 1979;Ochoa and Bray, 1991;Baringer and Price, 1997;Jia, 2000).…”

Section: Methodsmentioning

confidence: 99%

“…The present study uses the IBI ocean reanalysis delivered by CMEMS (Levier et al, 2014;Sotillo et al, 2015;Aznar et al, 2016;Amo Baladrón et al, 2018). The domain covered by the IBI reanalysis is limited by the 26 and 56 • N parallels, and the 19 • W and 5 • E meridians.…”

Section: Methodsmentioning

confidence: 99%

“…As the reservoir is mostly composed by the mixing of MSW and NACW, a possible source for the variability in MOW properties in the reservoir could be the variability in MSW and/or NACW (Artale et al, 2006;Fucso et al, 2008). However, other studies (Baringer and Price, 1997;Lozier and Sindlinger, 2009) stated that these two possibilities are too weak to explain the observed variability in MOW in the reservoir. In a more recent study, Bozec et al (2011) concluded that MOW reservoir variability can be explained by changes in the North Atlantic circulation resulting in a shift of the preferred MOW pathway, such changes being induced by the variability of the atmospheric forcing.…”

Section: á De Pascual-collar Et Al: Regional Circulation Patterns Omentioning

confidence: 99%

“…The combination of numerical ocean modelling and data assimilation techniques allows us to get a realistic view of the circulation patterns including (1) high-enough spatial resolution to reconstruct the mesoscale features and (2) long temporal coverage allowing us to compute averaged fields, thus filtering the temporal variability and retaining stationary features. The present work uses the Copernicus Marine Environmental Monitoring Service (CMEMS) Iberian-Biscay-Ireland (IBI) reanalysis (Levier et al, 2014;Sotillo et al, 2015;Aznar et al, 2016;Amo Baladrón et al, 2018) to make a description of the mean circulation in a domain encompassing the Tagus, Horseshoe, and Seine abyssal plains. It emphasizes the mesoscale features together with the general circulation patterns and their inter-annual variability.…”

Section: Introductionmentioning

confidence: 99%

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Regional circulation patterns of Mediterranean Outflow Water near the Iberian and African continental slopes

et al. 2019

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Abstract. The Mediterranean Outflow Water (MOW) is a dense water mass originated in the Strait of Gibraltar. Downstream of the Gulf of Cádiz, the MOW forms a reservoir region west of the Iberian continental slopes at a buoyant depth of approximately 1000 m. This region plays a key role as the main centre where the MOW is mixed and distributed into the North Atlantic. The seafloor in this area is characterized by the presence of a complex bathymetry with three abyssal plains separated by mountain chains. Although the topographic features do not reach the surface, they influence ocean flows at intermediate and deep ocean layers, conditioning the distribution and circulation of MOW. The Copernicus Marine Environmental Monitoring Service (CMEMS) Iberian–Biscay–Ireland (IBI) ocean reanalysis is used to provide a detailed view of the circulation and mixing processes of MOW near the Iberian and African continental slopes. This work emphasizes the relevance of the complex bathymetric features defining the circulation processes of MOW in this region. The high resolution of the IBI reanalysis allows us to make a description of the mesoscale features forced by the topography. The temperature, salinity, velocity, transport, and vorticity fields are analysed to understand the circulation patterns of MOW. The high-resolution circulation patterns reveal that Horseshoe Basin and the continental slope near Cape Ghir (a.k.a. Cap Rhir or Cabo de Aguer) are key areas controlling the mixing processes of MOW with the surrounding water masses, mainly North Atlantic Central Water (NACW) and Antarctic Intermediate Water (AAIW). The water mass variability is also analysed by means of composite analysis. Results indicate the existence of a variability in the MOW tongue which retracts and expands westwards in opposition to the movement of the underlying North Atlantic Deep Water.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: á De Pascual-collar Et Al: Regional Circulation Patterns Omentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Regional circulation patterns of Mediterranean Outflow Water near the Iberian and African continental slopes

et al. 2019

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“…The 20-year mean dynamic topography of Rio et al (2014) is used for the assimilation of along-track SLA. to the open boundaries and the coasts (Sotillo et al, 2015;Aznar et al, 2016). Lateral open boundary data (temperature, salinity, velocities, and sea level) are interpolated from the daily GLO outputs (Sec.…”

Section: Mercator Global (Glo; Global_analysis_forecast_phy_001_024)mentioning

confidence: 99%

Copernicus (CMEMS) operational model intercomparison in the western Mediterranean Sea: Insights from an eddy tracker

Mason

Ruiz

Bourdallé‐Badie

et al. 2019

Preprint

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Abstract. Rapid evolution of operational ocean models is driven by advances in numerics and sophisticated data assimilation schemes, computational power, and storage capacity. The Copernicus Marine Service (CMEMS) is a major provider of operational products that are made available through an online catalogue. The service includes global and regional forecasts in near-real-time and reanalysis modes. Here we apply an eddy tracker to daily SSH fields from three such reanalysis products from the CMEMS catalogue, with the objective to evaluate their performance in terms of their eddy properties and three-dimensional composite structures over the period 2013 through 2016. The products are (i) the Global Analysis Forecast, (ii) the Mediterranean Analysis Forecast, and (iii) the Iberia-Biscay-Ireland Analysis Forecast. The common domain between these reanalyses is the western Mediterranean Sea (WMED) between the Strait of Gibraltar and Sardinia. This is a complex region with strong density gradients, especially in the Alboran Sea in the west where Atlantic and Mediterranean waters compete. Surface eddy property maps over the WMED of eddy radii, amplitudes and nonlinearity are consistent between the models, as well as with gridded altimetric data that serve as a reference. Mean 3D eddy composites are shown only for three subregions in the Alboran Sea. These are mostly consistent between the models, with minor differences being attributed to details of the respective model configurations. This information can be informative for the ongoing development of these CMEMS operational modeling systems.

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Dynamic characterization of the main Cantabrian river plumes by means of MODIS

Fernández-Nóvoa

Costoya

deCastro

et al. 2019

Continental Shelf Research

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Strengths and weaknesses of the CMEMS forecasted and reanalyzed solutions for the Iberia–Biscay–Ireland (IBI) waters

Cited by 33 publications

References 28 publications

Regional circulation patterns of Mediterranean Outflow Water near the Iberian and African continental slopes

Regional circulation patterns of Mediterranean Outflow Water near the Iberian and African continental slopes

Copernicus (CMEMS) operational model intercomparison in the western Mediterranean Sea: Insights from an eddy tracker

Dynamic characterization of the main Cantabrian river plumes by means of MODIS

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