Observing the Mediterranean Sea from space: 21 years of Pathfinder-AVHRR sea surface temperatures (1985 to 2005): re-analysis and validation

Marullo, Salvatore; Nardelli, Bruno Buongiorno; Guarracino, M.; Santoleri, Rosalia

doi:10.5194/os-3-299-2007

Cited by 117 publications

(26 citation statements)

References 21 publications

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“…In addition to satellite-derived Sea Surface Temperature (Marullo et al, 2007), a total of 1617 CTD stations, collected between January 2001 and August 2006, were used to support the model results. However, as hydrographic observations are sparse in space and time (Table 1 gives the total number of CTD casts per region and per year, while in Fig.…”

Section: Methodsmentioning

confidence: 99%

A study of the hydrographic conditions in the Adriatic Sea from numerical modelling and direct observations (2000–2008)

Oddo

Guarnieri

2011

Ocean Sci.

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Abstract. The inter-annual variability of Adriatic Sea hydrographic characteristics is investigated by means of numerical simulation and direct observation. The period under investigation runs from the beginning of 2000 to the end of 2008. The model used to carry out the simulation is derived from the primitive equation component of the Adriatic Forecasting System (AFS). The model is based on the Princeton Ocean Model (POM) adapted in order to reproduce the features of the Adriatic. Both numerical findings and observations agree in depicting a strong inter-annual variability in the entire Adriatic Sea and its sub-basins. Nevertheless, two model deficiencies are identified: an excessive vertical/horizontal mixing and an inaccurate representation of the thermohaline properties of the entering Mediterranean Waters. The dense water formation process has been found to be intermittent. In addition to inter-annual variability, a long-scale signal has been observed in the salinity content of the basin as a consequence of a prolonged period of reduced Po river runoff and high evaporation rates. As a result, the temperature and salinity of the northern Adriatic dense water vary considerably between the beginning and the end of the period investigated.

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Section: Methodsmentioning

confidence: 99%

A study of the hydrographic conditions in the Adriatic Sea from numerical modelling and direct observations (2000–2008)

Oddo

Guarnieri

2011

Ocean Sci.

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“…They correspond to the mean SST fields averaged over one particular year (2007) and the equivalent mean circulation as derived from the addition of SLA and MDT using the previous MDT computed by Rio et al (2007) and the SMDT-MED-2014. For the SST we use the reanalysis produced by Marullo et al (2007), which consists of a daily SST series obtained through an optimal interpolation of infrared AVHRR (Advanced Very High Resolution Radiometer) data with a 1/16 • resolution.…”

Section: Comparison To Sea Surface Temperaturementioning

confidence: 99%

Computation of a new mean dynamic topography for the Mediterranean Sea from model outputs, altimeter measurements and oceanographic in situ data

et al. 2014

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Abstract. The accurate knowledge of the ocean's mean dynamic topography (MDT) is a crucial issue for a number of oceanographic applications and, in some areas of the Mediterranean Sea, important limitations have been found pointing to the need of an upgrade. We present a new MDT that was computed for the Mediterranean Sea. It profits from improvements made possible by the use of extended data sets and refined processing. The updated data set spans the 1993-2012 period and consists of drifter velocities, altimetry data, hydrological profiles and model data. The methodology is similar to the previous MDT by Rio et al. (2007). However, in Rio et al. (2007) no hydrological profiles had been taken into account. This required the development of dedicated processing. A number of sensitivity studies have been carried out to obtain the most accurate MDT as possible. The main results from these sensitivity studies are the following: moderate impact to the choice of correlation scales but almost negligible sensitivity to the choice of the first guess (model solution). A systematic external validation to independent data has been made to evaluate the performance of the new MDT. Compared to previous versions, SMDT-MED-2014 (Synthetic Mean Dynamic Topography of the MEDiterranean sea) features shorter-scale structures, which results in an altimeter velocity variance closer to the observed velocity variance and, at the same time, gives better Taylor skills.

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“…Satellite SST data have been available, at least twice a day, since 1982. They have been used in a variety of studies to investigate the surface variability of the Mediterranean from the annual and interannual timescales (Borzelli and Ligi, 1999a, b;Marullo et al, 2007;Notarstefano et al, 2008;Borzelli, 2008;Borzelli et al, 2009) to the daily SST cycle (Marullo et al, 2011). The Group for High Resolution SST (GHRSST) supports these research activities by providing high-quality sea surface temperature data for applications in short, medium and decadal/climate timescales in an efficient manner through international collaboration and scientific innovation.…”

Section: Present Knowledgementioning

confidence: 99%

Physical forcing and physical/biochemical variability of the Mediterranean Sea: a review of unresolved issues and directions for future research

Artale²,

et al. 2014

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Abstract. This paper is the outcome of a workshop held in Rome in November 2011 on the occasion of the 25th anniversary of the POEM (Physical Oceanography of the Eastern Mediterranean) program. In the workshop discussions, a number of unresolved issues were identified for the physical and biogeochemical properties of the Mediterranean Sea as a whole, i.e., comprising the Western and Eastern sub-basins. Over the successive two years, the related ideas were discussed among the group of scientists who participated in the workshop and who have contributed to the writing of this paper.Three major topics were identified, each of them being the object of a section divided into a number of different subsections, each addressing a specific physical, chemical or biological issue:1. Assessment of basin-wide physical/biochemical properties, of their variability and interactions.2. Relative importance of external forcing functions (wind stress, heat/moisture fluxes, forcing through straits) vs. internal variability.3. Shelf/deep sea interactions and exchanges of physical/biogeochemical properties and how they affect the sub-basin circulation and property distribution.Furthermore, a number of unresolved scientific/methodological issues were also identified and are reported in each sub-section after a short discussion of the present knowledge. They represent the collegial consensus of the scientists contributing to the paper. Naturally, the unresolved issues presented here constitute the choice of the authors and therefore they may not be exhaustive and/or complete. The overall goal is to stimulate a broader interdisciplinary discussion among the scientists of the Mediterranean oceanographic community, leading to enhanced collaborative efforts and exciting future discoveries.

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Observing the Mediterranean Sea from space: 21 years of Pathfinder-AVHRR sea surface temperatures (1985 to 2005): re-analysis and validation

Cited by 117 publications

References 21 publications

A study of the hydrographic conditions in the Adriatic Sea from numerical modelling and direct observations (2000–2008)

A study of the hydrographic conditions in the Adriatic Sea from numerical modelling and direct observations (2000–2008)

Computation of a new mean dynamic topography for the Mediterranean Sea from model outputs, altimeter measurements and oceanographic in situ data

Physical forcing and physical/biochemical variability of the Mediterranean Sea: a review of unresolved issues and directions for future research

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