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The Mediterranean Ocean Colour Observing System: System Development and Product Validation : Volume 9, Issue 2 (23/03/2012)

By Volpe, G.

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Book Id: WPLBN0003976495
Format Type: PDF Article :
File Size: Pages 37
Reproduction Date: 2015

Title: The Mediterranean Ocean Colour Observing System: System Development and Product Validation : Volume 9, Issue 2 (23/03/2012)  
Author: Volpe, G.
Volume: Vol. 9, Issue 2
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2012
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Santoleri, R., Volpe, G., Forneris, V., Tronconi, C., & Colella, S. (2012). The Mediterranean Ocean Colour Observing System: System Development and Product Validation : Volume 9, Issue 2 (23/03/2012). Retrieved from http://worldebookfair.org/


Description
Description: Istituto di Scienze dell'Atmosfera e del Clima, Via Fosso del Cavaliere 100, 00133 Roma, Italy. This paper presents the Mediterranean Ocean Colour Observing System in the framework of the growing demand of near real time data emerging within the operational oceanography international context. The main issues related with the satellite operational oceanography are tied to (1) the near real-time ability to track data flow uncertainty sources; (2) in case of failure, to provide backup solutions to end-users; and (3) to scientifically assess the product quality. We describe the major scientific and technological steps made to develop, maintain and improve the operational system and its products. A method for assessing the near real-time product quality is developed and its limitation discussed. Main results are concerned with the degradation, starting from mid-2010, of the MODIS Aqua channel at 443 nm. The product validation analysis highlights that SeaWiFS chlorophyll product over the Mediterranean Sea is the best performing in comparison with those of MODIS and MERIS. Despite their general good agreement with in situ observations, MODIS- and MERIS-derived chlorophyll present a slight and systematic underestimation of their in situ counter part. The most relevant implications induced by these results are discussed from an operational point of view.

Summary
The Mediterranean Ocean Colour Observing System: system development and product validation

Excerpt
Santoleri, R., Volpe, G., Marullo, S., and Buongiorno Nardelli, B.: Open Waters Optical Remote Sensing of the Mediterranean Sea, in: Remote Sensing of the European Seas, edited by: Barale, V., and Gade, M., Springer, 103–116, 2008.; Siegel, D. A., Wang, M., Maritorena, S., and Robinson, W.: Atmospheric correction of satellite ocean color imagery: the black pixel assumption, Appl. Opt., 39, 3582–3591, 2000.; Triantafyllou, G., Korres, G., Hoteit, I., Petihakis, G., and Banks, A. C.: Assimilation of ocean colour data into a Biogeochemical Flux Model of the Eastern Mediterranean Sea, Ocean Sci., 3, 397–410, doi:10.5194/os-3-397-2007, 2007.; Volpe, G., Santoleri, R., Vellucci, V., Ribera d'Alcala, M., Marullo, S., and D'Ortenzio, F.: The colour of the Mediterranean Sea: Global versus regional bio-optical algorithms evaluation and implication for satellite chlorophyll estimates, Remote Sens. Environ., 107, 625–638, 2007.; Volpe, G., Banzon, V. F., Evans, R., Santoleri, R., Mariano, A. J., and Sciarra, R.: Satellite observations of the impact of dust in a low nutrient low chlorophyll region: fertilization or artefact?, Glob. Biogeochem. Cycle, 23, GB3007, doi:3010.1029/2008GB003216, 2009.; Werdell, P. J. and Bailey, S. W.: An improved in-situ bio-optical data set for ocean color algorithm development and satellite data product validation, Remote Sens. Environ., 98, 122–140, 2005.; Bailey, S. W. and Werdell, P. J.: A multi-sensor approach for the on-orbit validation of ocean color satellite data products, Remote Sens. Environ., 102, 12–23, 2006.; Bailey, S. W., McClain, C. R., Werdell, P. J., and Schieber, B. D.: Normalized water-leaving radiance and chlorophyll a match-up analysis, SeaWiFS Postlaunch Calibration and Validation Analyses, Part 2, NASA Goddard Space Flight Center, Greenbelt, Maryland, NASA Tech. Memo., 1999-206892, 10, 45–52, 2000.; Bricaud, A., Bosc, E., and Antoine, D.: Algal biomass and sea surface temperature in the Mediterranean Basin – Intercomparison of data from various satellite sensors, and implications for primary production estimates, Remote Sens. Environ., 81, 163–178, 2002.; Claustre, H., Morel, A., Hooker, S. B., Babin, M., Antoine, D., Oubelkheir, K., Bricaud, A., Leblanc, K., Queguiner, B., and Maritorena, S.: Is desert dust making oligotrophic waters greener?, Geophys. Res. Lett., 29, 1469, 2002.; D'Ortenzio, F., Marullo, S., Ragni, M., d'Alcala, M. R., and Santoleri, R.: Validation of empirical SeaWiFS algorithms for chlorophyll- alpha retrieval in the Mediterranean Sea – A case study for oligotrophic seas, Remote Sens. Environ., 82, 79–94, 2002.; Darecki, M. and Stramski, D.: An evaluation of MODIS and SeaWiFS bio-optical algorithms in the Baltic Sea, Remote Sens. Environ., 89, 326–350, 2004.; Gregg, W. W. and Casey, N. W.: Global and regional evaluation of the SeaWiFS chlorophyll data set, Remote Sens. Environ., 93, 463–479, 2004.; Hooker, S. B. and McClain, C.: The calibration and validation of SeaWiFS data, Prog. Oceanogr., 45, 427–465, 2000.; Kahru, M. and Mitchell, B. G.: Blending of ocean colour algorithms applied to the Southern Ocean, Remote Sensing Letters, 1, 119–124, 2010.; Lazzari, P., Teruzzi, A., Salon, S., Campagna, S., Calonaci, C., Colella, S., Tonani, M., and Crise, A.: Pre-operational short-term forecasts for Mediterranean Sea biogeochemistry, Ocean Sci., 6, 25–39, doi:10.5194/os-6-25-2010, 2010.; Volpe, G., Santoleri, R., Forneris, V., and Colella, S.: Towards an Operational Interpolated Ocean Colour Product in the Mediterranean Sea, in preparation, 2012.; Le Traon, P. Y.: Satellites and Operational Oceanography, in: Operational Oceanography in the 21st Century, edited by: Schiller, A., and Brassington, G., Springer Dordrecht Heidelberg London New York, 29–54, 2011.; McClain, C. R., Arrigo, K. R., Esaias, W., Darzi, M., Patt, F. S., Evans, R. H., Brown

 

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