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The near-surface concentration of chlorophyll-a (C a ) was measured during 11 research voyages around New Zealand between 1998 and 2000. Over 400 measurements of spectral normalised water-leaving radiance were made using a high precision profiling spectroradiometer. The data were used to assess the quality of remotely sensed measurements of C a by the NASA ocean colour sensor, SeaWiFS,...
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