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Effect of waves and currents on the dynamics and seasonal variations of suspended particulate matter in the North Sea

Dobrynin, Mikhail und Gayer, Gerhard und Pleskachevsky, Andrey und Günther, Heinz (2010) Effect of waves and currents on the dynamics and seasonal variations of suspended particulate matter in the North Sea. Journal of Marine Systems, 82 (1-2), Seiten 1-20. ELSEVIER. DOI: 10.1016/j.jmarsys.2010.02.012.

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Kurzfassung

Effect of waves and currents on the dynamics and seasonal variations of suspended particulate matter (SPM) in the North Sea is investigated by a three-dimensional Circulation and Transport Model for SPM (CTM-SPM) in 2002 and 2003, forced by waves and meteorological data. Calculated fine sediment exchange processes at the seawater–seabed interface are driven by the instant values of the shear stress velocity due to currents and waves. Modeled SPM concentrations are compared with in-situ measurements and satellite snap-shot images. As a result of the action of currents and waves, local bathymetry and the fine sediment content at the sea bottom, modeled time series shows different short-term dynamics of SPM concentrations in various locations in the North Sea. On a longer time scale, currents and waves result in different seasonal distributions of the shear stress velocity typical for the calm (April–October) and the storm (October–April) periods. Accordingly, our model calculates different seasonal distributions of SPM with the mean surface concentrations of about 2 mg l−1 in the calm and N5 mg l−1 in the storm periods. Waves lead to a higher frequency of resuspension and erosion events and increase mixing intensity in the water column during storm periods. During calm periods, SPM distribution is mainly shaped by currents. A different pattern, characterized by high SPM concentrations in off-shore areas, evolves instantly during transient storms events.

Dokumentart:Zeitschriftenbeitrag
Zusätzliche Informationen:online bereits erschienen
Titel:Effect of waves and currents on the dynamics and seasonal variations of suspended particulate matter in the North Sea
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Dobrynin, Mikhail DMI, Denmark
Gayer, GerhardGKSS
Pleskachevsky, AndreyNICHT SPEZIFIZIERT
Günther, HeinzGKSS
Datum:10 Juli 2010
Erschienen in:Journal of Marine Systems
Referierte Publikation:Ja
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:82
DOI :10.1016/j.jmarsys.2010.02.012
Seitenbereich:Seiten 1-20
Herausgeber:
HerausgeberInstitution und/oder E-Mail-Adresse der Herausgeber
Fennel, W.Universität Rostock
Hoffmann, E.Old Dominion University, Norfolk
Verlag:ELSEVIER
Name der Reihe:Journal of Marine Systems
Status:veröffentlicht
Stichwörter:suspended particulate matter, seasonal variations, dynamics, modeling, North Sea, satellite data
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Entwicklung und Erprobung von Verfahren zur Gewässerfernerkundung (alt)
Standort: Berlin-Adlershof , Oberpfaffenhofen
Institute & Einrichtungen:Institut für Methodik der Fernerkundung > Gewässerfernerkundung
Hinterlegt von: Bärbel Bolowski
Hinterlegt am:28 Apr 2010 08:00
Letzte Änderung:04 Apr 2013 16:16

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