Relationship Between Surface Salinity And Ocean Color In The Plumes Of The Niger And Congo Rivers | 9505
Journal of Marine Science: Research & Development
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This study focusses on the relationship between surface salinity and ocean color in the plumes of the Niger and Congo
rivers. Near the coast, low salinity, relatively rich nutrient concentration and suspended matter characterize water of the
river plumes. These waters mix with oceanic waters along current paths. The objective of this work is to analyze the nature
of the relationship between salinity and CDM (Colored Detrital Material). This study is based on salinity measurements by
the sensor Soil Moisture and Ocean Salinity (SMOS) and CDM estimates derived from Moderate Resolution Imaging Sensor
Spectroradiometer (MODIS) observations in the Eastern Tropical Atlantic. We first described the monthly maps of different
variables in 2010 and studied correspondences between physical and biological fields. For the study of plumes, the calculation of
trajectories following the minimum monthly salinity was done, and then we analyzed the SSS vs. CDM relationships along these
trajectories. Satellite data of SSS and CDM allowed a first analysis of the spatio-temporal evolution of these two variables. Our
results show some spatial coherence between salinity and CDM in the waters of the plume at monthly time scale, but there are
areas in which the spatial structure of salinity and CDM do not coincide because some trajectories behave strangely relative to
the SSS plume. Away from the river mouth, flow variations have a minor role on SSS seasonal variation. The rest of the variation
is probably due to the current variability, or more precisely to the SSS advection.
Lijun Hou received his Ph.D. from East China Normal University in 2004. He ever worked with Professor Wayne Gardner at Marine Science Institute,
University of Texas at Austin in 2008 and 2009. Now, he is a professor of State Key Laboratory of Estuarine and Coastal Research, China. So far,
he has published more than 70 papers in reputed journals, with high impact factors.
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