NDLI: Impact of Density Gradients on Net Sediment Transport into the Wadden Sea

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Impact of Density Gradients on Net Sediment Transport into the Wadden Sea

Content Provider	Semantic Scholar
Author	Burchard, Hans Flöser, Götz Staneva, Joanna V. Badewien, Thomas H. Riethmüller, Rolf
Copyright Year	2008
Abstract	Abstract This study tests the hypothesis that horizontal density gradients have the potential to significantly contribute to the accumulation of suspended particulate matter (SPM) in the Wadden Sea. It is shown by means of long-term observations at various positions in the Wadden Sea of the German Bight that the water in the inner regions of the Wadden Sea is typically about 0.5–1.0 kg m−3 less dense than the North Sea water. During winter this occurs mostly because of freshwater runoff and net precipitation; during summer it occurs mostly because of differential heating. It is demonstrated with idealized one-dimensional water column model simulations that the interaction of such small horizontal density gradients with tidal currents generates net onshore SPM fluxes. Major mechanisms for this are tidal straining, estuarine circulation, and tidal mixing asymmetries. Three-dimensional model simulations in a semienclosed Wadden Sea embayment with periodic tidal forcing show that SPM with sufficiently high se...
Starting Page	566
Ending Page	587
Page Count	22
File Format	PDF HTM / HTML
DOI	10.1175/2007JPO3796.1
Alternate Webpage(s)	https://141.4.217.201/imperia/md/content/gkss/institut_fuer_kuestenforschung/kok/burchardetal_revised.pdf
Alternate Webpage(s)	https://www.hzg.de/imperia/md/content/gkss/zentrale_einrichtungen/bibliothek/journals/2008/burchard_26161.pdf
Alternate Webpage(s)	http://vbn.aau.dk/files/14927746/Impact_of_Density_Gradients_on_Net_Sediment_Transport_into_the_Wadden_Sea
Alternate Webpage(s)	https://doi.org/10.1175/2007JPO3796.1
Volume Number	38
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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