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You are here: Home / Library / RBINS Staff Publications / Seasonal variability of suspended particulate matter observed from SeaWiFS images near the Belgian coast

V.d.E. D., B. Nechad, M. Fettweis and F. Francken (2007)

Seasonal variability of suspended particulate matter observed from SeaWiFS images near the Belgian coast

Proceedings in Marine Science, 8:291-311.

Suspended Particulate Matter (SPM) surface concentration maps in the Belgian/Dutch coastal zone are retrieved from SeaWiFS images and are corrected using in situ measurements to obtain depth-averaged SPM concentration maps. A spatial correlation analysis of the derived maps shows that the area could be divided into three subregions where the correlations between the SPM concentrations are higher than 70\%. Examination of in situ SPM concentration measurements reveals that during about 1/3 of the tidal cycle the SPM concentration is significantly higher than during the rest of the cycle. Strong vertical gradients are sometimes observed during periods with increased SPM concentration. A satellite image taken during such a period would underestimate the depth-averaged SPM concentration. Images taken during other periods better represents (except for some small corrections) the averaged SPM concentration. The methodology for obtaining the depth-averaged SPM concentration maps from surface SPM distributions derived from SeaWiFS images is positive but can be further improved. © 2007 Elsevier B.V. All rights reserved.

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