A Mean Dynamic Topography of the Mediterranean Sea computed from altimetric data, in-situ measurements and a general circulation model

Rio, Marie Hélène; Poulain, Pierre‐Marie; Pascual, Ananda; Mauri, Elena; Larnicol, Gilles; Santoleri, Rosalia

doi:10.1016/j.jmarsys.2005.02.006

Cited by 145 publications

(126 citation statements)

References 34 publications

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“…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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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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“…MDT is the sea elevation due to the mean oceanic circulation. The only MDT available for the Mediterranean Sea (hereafter called RioMDT) was reconstructed by combining oceanic observations from altimetry and in situ measurements and outputs from an ocean general circulation model with no data assimilation for the period 1993-1999 by Rio et al (2007). The bloom area defined for this study is superimposed on both MDTs as a reference for the discussion (Fig.…”

Section: Data Treatmentmentioning

confidence: 99%

Factors controlling interannual variability of vertical organic matter export and phytoplankton bloom dynamics – a numerical case-study for the NW Mediterranean Sea

et al. 2012

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Abstract. Mid-latitude spring blooms of phytoplankton show considerable year-to-year variability in timing, spatial extent and intensity. It is still unclear to what degree the bloom variability is connected to the magnitude of the vertical flux of organic matter. A coupled three-dimensional hydrodynamic-biogeochemical model is used to relate interannual variability in phytoplankton spring-bloom dynamics to variability in the vertical export of organic matter in the NW Mediterranean Sea. Simulation results from 2001 to 2010, validated against remote-sensing chlorophyll, show marked interannual variability in both timing and shape of the bloom. Model results show a tendency for the bloom to start later after cold and windy winters. However, the onset of the bloom occurs often when the mixed layer is still several hundred metres deep while the heat flux is already approaching zero and turbulent mixing is low. Frequency and intensity of wind episodes control both the timing and development of the bloom and the consequent export flux of organic matter. The wintertime flux is greater than zero and shows relatively low interannual variability. The magnitude of the interannual variability is mainly determined in March when the frequency of windy days positively correlates with the export flux. Frequent wind-driven mixing episodes act to increase the export flux and, at the same time, to interrupt the bloom. Perhaps counterintuitively, our analysis shows that years with discontinuous, low-chlorophyll blooms are likely to have higher export flux than years with intense uninterrupted blooms. The NW Mediterranean shows strong analogy with the North Atlantic section within the same latitude range. Hence, our results may also be applicable to this quantitatively more important area of the world ocean.

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“…16) (см., например, Лебе-дев, Костяной, 2005;Rio et al, 2011) ирегиональные (рис. 17) (см., например, Rio et al, 2007;Kubryakov, Stanichny, 2011;Лебе-дев, 2014;Kubryakov et al, 2016) модели среднеклиматической ДТ. Синопти-ческая (или абсолютная) динамическая топография (рис.…”

Section: (6) поверхностные теченияunclassified

Satellite Monitoring of the Ocean Climate Parameters. Part 2

Kostianoy¹

2017

FAC

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A Mean Dynamic Topography of the Mediterranean Sea computed from altimetric data, in-situ measurements and a general circulation model

Cited by 145 publications

References 34 publications

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

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

Factors controlling interannual variability of vertical organic matter export and phytoplankton bloom dynamics – a numerical case-study for the NW Mediterranean Sea

Satellite Monitoring of the Ocean Climate Parameters. Part 2

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