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Novoa, S; Chust, G; Sagarminaga, Y; Revilla, M; Borja, A; Franco, J (2012). Water quality assessment using satellite-derived chlorophyll-a within the European directives, in the southeastern Bay of Biscay. MARINE POLLUTION BULLETIN, 64(4), 739-750.

Abstract
The implementation of water quality European Directives requires an intensification of water quality monitoring, within the limits of the Exclusive Economic Zone. Remote sensing technologies can provide a valuable tool for frequent, synoptic, water-quality observations, over large areas. The aim of this study is to assess the ecological status of Basque coastal water bodies using satellite imagery from MODIS sensor, together with optical and chlorophyll-a in situ measurements. Thus, sea surface satellite-derived chl-a algorithms, the OC3 M, 005 and a Local empirical algorithm, were compared against in situ measurements using satellite in situ match-ups, 90th Percentile (P90) monthly values for the 2005-2010 period. The 005 algorithm corresponded most accurately with in situ measurements performed in the area, hence, it was selected. A P90 chlorophyll-a map was created with this algorithm to apply the classification scheme required by the directives. The classification of water bodies, based upon satellite-derived chlorophyll-a, could improve considerably the assessment of water quality. (C) 2012 Elsevier Ltd. All rights reserved.

DOI:
0025-326X

ISSN:
10.1016/j.marpolbul.2012.01.020

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