Mr. Emanuele Böhm Profile

Emanuele Böhm

at Istituto di Scienze dell'Atmosfera e del Clima

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Publications (6)

Proceedings Article | 16 November 2004 Paper

Development of a near real-time SST product for the Mediterranean Forecasting System

Emma D'Acunzo, Rosalia Santoleri, Emanuele Bohm, Bruno Buongiorno Nardelli, Salvatore Marullo

Proceedings Volume 5569, (2004) https://doi.org/10.1117/12.597396

KEYWORDS: Clouds, Error analysis, Detection and tracking algorithms, Satellites, Algorithm development, Statistical analysis, Oceanography, Atmospheric corrections, Image quality, Visualization

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Proceedings Article | 26 February 2004 Paper

Fast delivery system for retrieval of near-real-time chlorophyll data in the Mediterranean Sea

Emanuele Bohm, Roberto Sciarra, Paolo de Riso, Rosalia Santoleri

Proceedings Volume 5233, (2004) https://doi.org/10.1117/12.516793

KEYWORDS: Digital signal processing, Data modeling, Satellites, Image processing, Data acquisition, Satellite imaging, Data conversion, Data archive systems, Climatology, Meteorology

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Proceedings Article | 26 February 2004 Paper

Satellite observations of cold filaments and surface jets in the Mediterranean Sea

Ettore Salusti, Emanuele Bohm, Emma D'Acunzo, R. D'Archino, Francesco Bignami

Proceedings Volume 5233, (2004) https://doi.org/10.1117/12.512516

KEYWORDS: Satellites, Earth observing sensors, Interfaces, Satellite imaging, Temperature metrology, Photovoltaics, Lanthanum, Turbulence, Digital signal processing, Modeling

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Proceedings Article | 14 February 2003 Paper

Satellite observation of sharp frontal shear instabilities and surface jets in the Mediterranean Sea

Emanuele Boehm, Francesco Bignami, E. D’Acunzo, R. D'Archino, Ettore Salusti

Proceedings Volume 4880, (2003) https://doi.org/10.1117/12.474407

KEYWORDS: Satellites, Earth observing sensors, Satellite imaging, Water, Fluid dynamics, Lanthanum, Digital signal processing, Oceanography, Meteorology, Image analysis

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Proceedings Article | 17 December 1999 Paper

Spatial and temporal variability in the Adriatic Sea: combined use of SeaWiFS and AVHRR data

Emanuele Boehm, Emma D'Acunzo, Fabrizio D'Ortenzio, Rosalia Santoleri, Lydia Lamorgese, Patria Banzon

Proceedings Volume 3868, (1999) https://doi.org/10.1117/12.373135

KEYWORDS: Satellites, Polonium, Sensors, Clouds, Temporal resolution, Lithium, Radiometry, Spatial resolution, Signal processing, Physics

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Proceedings Article | 11 December 1998 Paper

SYMPLEX experiment: first results on oceanic mesoscale dynamics and related primary production from AVHRR and SeaWIFS satellite data and field experiments

Fabrizio D'Ortenzio, Caterina Nuccio, Luigi Lazzara, Olga Mangoni, Ilaria Nardello, Emma D'Acunzo, Maurizio Ribera d'Alcala, Federico Corato, Marco Marcelli, Luca Massi, Bruno Buongiorno Nardelli, Sasha Tozzi, Fabio Conversano, Raffaella Casotti, Simona Zoffoli, Daniele Iudicone, Giovanna Mori, Christophe Brunet, Stefania Sparnocchia, Rosalia Santoleri, Salvatore Marullo, Michele Scardi, Emanuele Bohm, Vincenzo Saggiomo

Proceedings Volume 3496, (1998) https://doi.org/10.1117/12.332717

KEYWORDS: Satellites, Luminescence, Satellite imaging, Water, Remote sensing, In situ metrology, Data processing, Carbon, Earth observing sensors, Tongue

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Upper ocean dynamics is characterized by a strong variability, at different scales, both in direction and structure of the flow. Mesoscale variability, which is ubiquitous in the world ocean, is often the dominant component in the variance spectrum of velocity with relevant implications on water mass mixing and transformation and on the carbon transfer in the marine food web. Mesoscale activity is manifested through the formation of instabilities, meanders and eddies. Eddies generate either a doming of isopycnals (cyclones) or a central depression (anticyclones). This in turn modifies, among the others, nutrient and organism distributions in the photic zone eventually enhancing or depressing photosynthetic activity and other connected biological responses. The mechanism is similar to what has been thoroughly studied for the warm and cold core rings but at different spatial and temporal scales. The enhancement of phytoplankton growth and the modification of photosynthetic parameters has been shown to occur in situ by means of a modulated fluorescence probe. More recently, an attempt to estimate the magnitude of this specific forcing on nutrient fluxes and primary production has also been conducted at different scales by modeling exercises, though with contrasting estimates the relative importance concerns. Because phytoplankton growth takes place when light, nutrients and cells are found at the same place, the increase in primary production favored by mesoscale eddies cannot be easily predicted. The incident light, the seasonality, the life-time of the structure, its intensity etc. can all influence the final yield. In addition, it has still to be determined which component of the community reacts faster and takes advantage of the new nutrients and how efficiently the new carbon is channeled in the food web. For what remote sensing is concerned, the detectability form the space of such structures is certainly dependent on the depth at which the upward distortion of isopycnals takes places. It can be supposed that a change in bio-optical signature of the whole structure could occur because of the 3-D dynamics of the eddy. If this holds true, then color remote sensing coupled with sea level topography and sea surface temperature should be a powerful tool to track such transient structures. The ALT-SYMPLEX program has been designed to better understand the relationship between short living eddies and carbon transfer in the food web. This is based on several experiments aimed to integrate remote sensing data (ocean color and surface topography) and in situ data in order to evaluate the relationship between surface and sub-surface physical dynamics and its relations on chemical and biological aspects in presence of mesoscale features.

Showing 5 of 6 publications

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