Artigo Revisado por pares

OCEAN Project: The European archive of CZCS historical data

1999; Taylor & Francis; Volume: 20; Issue: 7 Linguagem: Inglês

10.1080/014311699212696

ISSN

1366-5901

Autores

Vittorio Barale, D. Larkin, L. Fusco, J. M. Melinotte, G. Pittella,

Tópico(s)

Marine and fisheries research

Resumo

Optical observations of the marine environment have been increasingly used to provide a novel look at a score of bio-geo-chemical and physical processes of the sea. A considerable time series of such data was collected by the Coastal Zone Color Scanner (CZCS) on board the satellite Nimbus-7, from late 1978 to early 1986. In order to exploit this historical dataset, the Ocean Colour European Archive Network (OCEAN) project a joint initiative of the Joint Research Centre (JRC) of the European Commission (EC) and the European Space Agency (ESA) has performed a thorough reappraisal of all (about 18 000) CZCS scenes covering marine regions of European concern. The Project had the specific aims of generating a European ocean colour database from the historical CZCS series, promoting its use in an Application Demonstration Programme (ADP) for selected regions, and last, but not least, developing in Europe a 'network' of scientific groups and facilities in support of current research activities and future space missions. In approaching these tasks, the Project developed specific software tools, integrated into a system named OCEANcode, for the operational processing and management of ocean colour data. Current system developments include tools devoted to the pre-processing of all CZCS data available in Europe (level-1 data), and the generation of appropriate quick-look images; the processing of all suitable data to the final geophysical parameters of interest (level-2 data), by means of algorithms for calibration, atmospheric correction, and pigment concentration derivation; the generation of time series, mosaics and statistical images of such parameters (level-3 data), via image geographic registration, coastal feature matching, and statistical compositing. The OCEAN archives have found applications in a number of studies concerning environmental issues of the European marginal and enclosed seas.

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