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Temporal variations of particle fluxes in the deep subtropical and tropical North Atlantic - Eulerian versus Lagrangian effectsThe flux of particles measured by sediment traps in the deep water of the Sargasso Sea and western tropical North Atlantic undergoes pronounced temporal variation. In the Sargasso Sea the variability is largely due to seasonal changes in mixed-layer depth and attendant changes in primary productivity affecting a wide region. By contrast, the variability in the western tropical Atlantic appears to be caused by patches of elevated nutrient and pigment concentrations which have their origin in the plumes of the Amazon and Orinoco rivers. Coastal zone color scanner scenes demonstrate the great seasonal and interannual differences in the direction and dispersal patterns of the plumes. The river plumes break up into irregular patches which may pass through the catchment area of a sediment trap at varying rates, thereby creating the impression of almost random temporal flux variability at a fixed trap site.
Document ID
19880055221
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Deuser, W. G.
(Woods Hole Oceanographic Institution MA, United States)
Muller-Karger, F. E.
(Maryland, University Cambridge, United States)
Hemleben, C.
(Tubingen, Universitat Federal Republic of Germ any, United States)
Date Acquired
August 13, 2013
Publication Date
June 15, 1988
Publication Information
Publication: Journal of Geophysical Research
Volume: 93
ISSN: 0148-0227
Subject Category
Oceanography
Accession Number
88A42448
Funding Number(s)
CONTRACT_GRANT: NSF OCE-81-17002
CONTRACT_GRANT: NSF OCE-76-21280
CONTRACT_GRANT: NSF OCE-82-19588
CONTRACT_GRANT: NSF OCE-85-01955
CONTRACT_GRANT: NGT-21-002-822
CONTRACT_GRANT: NSF OCE-80-24130
CONTRACT_GRANT: NSF OCE-84-17909
CONTRACT_GRANT: NSF OCE-78-19813
Distribution Limits
Public
Copyright
Other

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