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dc.contributor.authorLimeburner, Richard  Concept link
dc.contributor.authorBeardsley, Robert C.  Concept link
dc.coverage.spatialNorth Brazil shelf
dc.coverage.spatialAmazon River
dc.date.accessioned2006-05-16T17:56:19Z
dc.date.available2006-05-16T17:56:19Z
dc.date.issued1991-05
dc.identifier.urihttps://hdl.handle.net/1912/939
dc.description.abstractHydrographic (CTD) and acoustic Doppler current profiler (ADCP) observations were made on the North Brazil shelf adjacent to the mouth of the Amazon River during R/V Iselin cruise I9004 May 23-June 13, 1990 as part of A Multidisciplinary Amazon Shelf SEDiment Study (AMASSEDS). These observations were obtained during a small-scale survey on Leg 1 in support of mooring deployment operations, during a large-scale survey on Leg 3 in support of geological and geochemical sampling, during a frontal zone survey on Leg 4 consisting of 12 and 24 hourly CTD casts at anchored stations, and during a bottom tripod recovery on Leg 5. The maximum sampling depth at each station was within two meters of the bottom. The primary objectives of the AMASSEDS hydrographic measurement program were (a) to observe and characterize the temperature, salinity, density, oxygen, fluorescence and light transmission fields and their spatial variabilty on the North Brazilian shelf directly influenced by the Amazon River discharge, (b) to resolve the seaward extend and vertical structure of the surface plume of low salinity Amazon River water during different stages of river discharge, (c) to describe the spatial structure of the turbidity and associate suspended sediment distributions across the shelf, (d) to characterize the properties of the Amazon shelf water beneath the surface plume and their seasonal variabilty, and (e) to describe the landward penetration of the North Brazil Current with respect to water properties and shelf currents. This report represents a summary in graphic and tabular form of the hydrographic observations made during the third AMASSEDS cruise (I9004) on the R/V Iselin.en
dc.description.sponsorshipFunding was provided by the National Science Foundation through Grant No. OCE 88-12917.en
dc.format.extent10881130 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen
dc.publisherWoods Hole Oceanographic Institutionen
dc.relation.ispartofseriesWHOI Technical Reportsen
dc.relation.ispartofseriesWHOI-91-12en
dc.subjectHydrographyen
dc.subjectCTDen
dc.subjectSuspended sedimenten
dc.subjectAmasSeds (A Multidisciplinary Amazon Shelf SEDiment Study)en
dc.subjectNorth Brazil Coastal Regionen
dc.subjectColumbus Iselin (Ship) Cruise CI9004en
dc.titleCTD observations on the North Brazil shelf during a multidisciplinary Amazon Shelf Sediment Study, AMASSEDS, May-June 1990en
dc.typeTechnical Reporten
dc.identifier.doi10.1575/1912/939


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