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  • CTD  (8)
  • Physics
  • Woods Hole Oceanographic Institution  (9)
  • 2005-2009  (9)
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  • 1
    Publication Date: 2022-05-25
    Description: This report describes calibration techniques developed over the past three years for the WHOI/Brown CTD in the Moored Array Program. Comparison is made with classical methods of hydrography for stations obtained in the MODE-1 density program. Methods for temperature lag correction and conversion of conductivity to salinity are given.
    Description: Prepared for the Office of Naval Research under Contract N00014-74-C0262; NR 083-004.
    Keywords: CTD ; Calibration ; Salinity
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
    Format: 3977131 bytes
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  • 2
    Publication Date: 2022-05-25
    Description: Hydrograhic (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 I9113 November 5-25, 1991 as part of A Multidisciplinary Amazon Shelf SEDiment Study (AMASSEDS). These observations were obtained during a large-scale survey on Leg 3 in support of geological and geochemical sampling, and during a frontal zone survey on Leg 4 consisting of 14 and 26 hourly CTD casts at anchored stations. The maximum sampling depth at each station was within two meters of the bottom. The primary objectives of the AMASSEDS hydrographic meaurement 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 extent 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 associated suspended sediment distributions across the shelf, (d) to chacterize 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 hydrograhic observations made during the fourth AMASSEDS cruise (I9113) on the R/V Iselin.
    Description: Funding was provided by the National Science Foundation through Grant No. OCE 88-12917.
    Keywords: Hydrography ; CTD ; Suspended sediment ; North Brazil Coastal Region ; Amazon River ; AmasSeds (A Multidisciplinary Amazon Shelf SEDiment Study) ; Equator ; Equatorial ; Columbus Iselin (Ship) Cruise CI9113
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
    Format: 8559997 bytes
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  • 3
    Publication Date: 2022-05-25
    Description: A trans-Indian Ocean hydrographic section employing CTD/O2 profilers was conducted between Africa and Australia during austral spring 1987. The cruise track ranged between 29°S and 34°S; the average latitude of the crossing was 32°S. The purpose of the cruise was to explore various aspects of the South Indian Ocean including the characteristics of the core water masses of this ocean, the strength of the subtropical gyre, the structure and transport of deep western-boundary currents, and the net meridional heat flux. A total of 109 CTD/O2 profiles with associated rosette water sample measurements and 347 XBT profiles were collected, supplemented by underway upper ocean velocity, bathymetric and sea surface temperature and salinity data. This report detals the data collection, calibration, and reduction methods, and summarizes the hydrographic observations.
    Description: Funding was provided by the National Science Foundation through Grant No. OCE 86-14497.
    Keywords: CTD ; Hydrographic ; Charles Darwin (Ship) Cruise CD29
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
    Format: 14845081 bytes
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  • 4
    Publication Date: 2022-05-25
    Description: Hydrographic (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.
    Description: Funding was provided by the National Science Foundation through Grant No. OCE 88-12917.
    Keywords: Hydrography ; CTD ; Suspended sediment ; AmasSeds (A Multidisciplinary Amazon Shelf SEDiment Study) ; North Brazil Coastal Region ; Columbus Iselin (Ship) Cruise CI9004
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
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  • 5
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    Woods Hole Oceanographic Institution
    Publication Date: 2022-05-25
    Description: AQUI89 is a real-time shipboard Conductivity Temperature Depth profiler (CTD) data acquisition system used at the Woods Hole Oceanographic Institution to collect, preview and store (log) data from the WHOI/Brown Mark III CTD microprofiler on a MicroVAX II computer, running the VAX/VMS operating system, version 5.3. This manual contains the instructions for operation of the AQUI89 data acquisition system version 1.0.
    Description: Funding was provided by the National Science Foundation under Grant Nos. OCE87-12087 and OCE90-05218.
    Keywords: CTD ; Acquisition ; Operator's guide
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
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  • 6
    Publication Date: 2022-05-25
    Description: Hydrographic (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 I9002 February 10-March 29, 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 lage-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 variability on the North Brazilian shelf directly influence by the Amazon River discharge, (b) to resolve the seaward extent 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 variability, 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 seond AMASSEDS cruise (I9002) on the R/V Iselin.
    Description: Funding was provided by the National Science Foundation through Grant No. OCE 88-12917.
    Keywords: Hydrography ; CTD ; Suspended sediment ; AmasSeds (A Multidisciplinary Amazon Shelf SEDiment Study) ; North Brazil Coastal Region ; Columbus Iselin (Ship) Cruise CI9002
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
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  • 7
    Publication Date: 2022-05-26
    Description: A series of laboratory intercalibrations of a CTD system were undertaken between 1986 and 1990 as part of cooperative research program between the United States (US) and People's Republic of China (PRC). A comparison of US and PRC calibration facility standards is carried out using a NBIS/EG&G Marine Instruments Mark IIIb CTD system as a "quasi-transfer standard." When compared with the quoted accuracy of the calibration facilities, pressure was found to be more accurate and temperatue was about as accurate as stated. The conductivity standard differences between facilities are difficult to assess because of the CTD conductivity sensor drift.
    Description: Funding was provided by the National Oceanographic and Atmospheric Administration under Grant No. NA85-AA-d-AC117.
    Keywords: CTD ; Calibration ; Intercalibration
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
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  • 8
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    Woods Hole Oceanographic Institution
    Publication Date: 2022-05-26
    Description: AQUI89 is a real-time shipboard Conductivity Temperature Depth profiler (CTD) data acquisition system used at the Woods Hole Oceanographic Institution to collect, preview and store (log) data from the WHOI/Brown Mark III CTD microprofiler on a MicroVAX II computer, running the VAX/VMS operating system, version 5.3. This manual contains the instructions for the installation of the AQUI89 data acquisition system version 1.0.
    Description: Funding was provided by the National Science Foundation under Grant Nos. OCE87-12087 and OCE90-05218.
    Keywords: CTD ; Acquisition ; Installation maual
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
    Format: 1288214 bytes
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  • 9
    Publication Date: 2022-05-26
    Description: In 2001, the Geophysical Fluid Dynamics Summer Study Program grappled with Conceptual Models of the Climate. Eli Tziperman (Weizman Institute), Paola Cessi (Scripps Institution of Oceanography) and Ray Pierre- Humbert (University of Chicago) provided the principal lectures. This introduction gave us all a glimpse into the complex problem of the climate, both in the present, past and future, and even on other planets. As always, the next weeks of the program were filled with many seminars from the visitors, and culminated in the fellow's reports.
    Keywords: Climatic changes ; Physics
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
    Format: 18131236 bytes
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