Mediterranean sea eddy kinetic energy variability from 11 years of altimetric data

Pujol, Marie–Isabelle; Larnicol, Gilles

doi:10.1016/j.jmarsys.2005.07.005

Cited by 159 publications

(154 citation statements)

References 29 publications

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“…The specific satellite Sea Level Anomaly (SLA) fields used in this study are described by Pujol and Larnicol (2005) and Landerer and Volkov (2013). Along track sea-level data are corrected for long wavelength errors (Traon et al 1998;Le Traon et al 2003) and an estimate of the inverse barometer (IB) effect is subtracted as well as wind and tidal effects in addition to other atmospheric corrections (taken together these are called dynamic atmospheric corrections; Carrère and Lyard 2003).…”

Section: Satellite Datamentioning

confidence: 99%

“…The SLA is given by the difference between the sealevel and its mean, calculated over a reference period from 1993 to 1999 (Pujol and Larnicol 2005). We assume that this mean value contains an approximation of the height of the geoid above the reference ellipsoid (Cazenave et al 1998(Cazenave et al , 2002 and the mean dynamic topography.…”

Section: Analysis Of Sea-level Componentsmentioning

confidence: 99%

“…The satellite altimetry SLA signal is obtained by the difference between the sea-level (η sat ) and its mean (η mean sat ), calculated over a reference period from 1993 to 1999 (Pujol and Larnicol 2005). We assume that η mean sat contains an approximation of the height of the geoid above the…”

Section: Appendixmentioning

confidence: 99%

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Sea-level variability in the Mediterranean Sea from altimetry and tide gauges

et al. 2016

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mean sea-level and the coastal stations. From 1993 to 2012, the mean sea-level trend (2.44 ± 0.5 mm year −1 ) was found to be affected by the positive anomalies of 2010 and 2011, which were observed in all the cases analysed and were mainly distributed in the eastern part of the basin. Ensemble empirical mode decomposition showed that these events were related to the processes that have dominant periodicities of ∼10 years, and positive residual sea-level trend were generally observed in both data-sets. In terms of mean sea-level trends, a significant positive sea-level trend (>95 %) in the Mediterranean Sea was found on the basis of at least 15 years of data.

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Section: Satellite Datamentioning

confidence: 99%

Section: Analysis Of Sea-level Componentsmentioning

confidence: 99%

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Sea-level variability in the Mediterranean Sea from altimetry and tide gauges

et al. 2016

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“…[6] Additionally, the regional product of merged, delayedtime gridded SLA fields ("UPD" version) for the Mediterranean Sea was also obtained from the AVISO website (details of the processing are provided in Pujol and Larnicol [2005]). The absolute dynamic topography (ADT), from which are derived the absolute geostrophic currents, was then calculated by adding the mean dynamic topography from Rio et al [2007] to both AVISO and the generated higher-resolution SLA maps described in section 3.…”

Section: Altimetry Datamentioning

confidence: 99%

Improvement of coastal and mesoscale observation from space: Application to the northwestern Mediterranean Sea

Escudier

Bouffard

Pascual

et al. 2013

Geophysical Research Letters

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[1] We present an innovative approach to the generation of remotely sensed high-resolution sea surface topography that improves coastal and mesoscale dynamic characterization. This new method is applied for the period 2002-2010 in the northwestern Mediterranean Sea, an area marked by a small Rossby radius. The spectral content of the new mapped data is closer to that of the along-track signal and displays higher levels of energy in the mesoscale bandwidth with the probability distribution of the new velocity fields 30% closer to drifter estimations. The fields yield levels of eddy kinetic energy 25% higher than standard altimetry products, especially over regions regularly impacted by mesoscale instabilities. Moreover, qualitative and quantitative comparisons with drifters, glider, and satellite sea surface temperature observations further confirm that the new altimetry product provides, in many cases, a better representation of mesoscale features (more than 25% improvement in correlation with glider data during an experiment). Citation: Escudier, R., J. Bouffard, A. Pascual, P.-M. Poulain, and M.-I. Pujol (2013), Improvement of coastal and mesoscale observation from space: Application to the northwestern Mediterranean Sea, Geophys.

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“…The incoming Atlantic Jet (AJ) is responsible for many of the circulation features observed in the Alboran, in particular a meandering current and the persistent Western Alboran Gyre (WAG), an anticyclonic gyre that dominates the circulation of the western AS. The WAG is usually centred at about 4°W with surface currents of around 1 m/s and a typical size of 100 km diameter (VargasYáñez et al 2002, García Lafuente and Delgado 2004, Vélez-Belchí et al 2005, Flexas et al 2006; it is the strongest dynamical feature of the whole western Mediterranean mean circulation (Pujol and Larnicol 2005). Further to the east a second, usually less intense, anticyclonic gyre (the Eastern Alboran Gyre, EAG) is often observed.…”

Section: Introductionmentioning

confidence: 99%