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Sound speed, water temperature, salinity and conductivity data from CTD taken from research vessels Sea Scout and C-Wolf in coastal waters of Texas, approaches to Galveston from 2017-09-14 to 2018-03-13 (NCEI Accession 0174501)


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            title:  Sound speed, water temperature, salinity and conductivity data from CTD taken from research vessels Sea Scout and C-Wolf in coastal waters of Texas, approaches to Galveston from 2017-09-14 to 2018-03-13 (NCEI Accession 0174501)
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                date:  2018-07-20
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1558 Oceaneering International, Inc.
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                individualName:  Levy, Tara
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        abstract:  This dataset contains CTD measurements of sound speed, water temperature, salinity and conductivity in coastal waters of Texas, Gulf of Mexico, approaches to Galveston from 2017-09-14 to 2018-03-13. Casts were conducted at least twice a day on board R/V Sea Scout and at least once a day on board R/V C-Wolf. Dual CTD casts were obtained at least once a week to ensure a proper performance of sensors. Data from vessel Sea Scout and vessel CWolf contain salinity and conductivity, respectively. Data were collected under contract with the NOAA. Data are in cnv format.
        purpose:  These data were collected in support of multibeam data collection. Variations in the speed of sound through the water column will affect the path of the acoustic pulse transmitted from the multibeam system and therefore will affect the depth and position of soundings. The multibeam data collected was corrected for the water column sound speed in real-time using the multibeam control software.
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/91 CONDUCTIVITY
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/110 DEPTH - OBSERVATION
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                    linkage: ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0122/0174501/
                    protocol:  FTP
                    applicationProfile:  Any FTP client
                    name:  FTP
                    description:  These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP).
                    function:  (CI_OnLineFunctionCode) download
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) dataset
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0174501 v1.1 was published.
                dateTime:
                  DateTime:  2018-07-20T22:43:18Z
                output:  (LE_Source)
                    sourceCitation:  (CI_Citation)
                        title:  NCEI Accession 0174501 v1.1
                        date:  (CI_Date)
                            date: (inapplicable)
                            dateType:  (CI_DateTypeCode) publication
                        citedResponsibleParty:  (CI_ResponsibleParty)
                            individualName: (inapplicable)
                            contactInfo:  (CI_Contact)
                                onlineResource:  (CI_OnlineResource)
                                    linkage: https://www.ncei.noaa.gov/archive/accession/0174501/1.1
                                    protocol:  HTTPS
                                    name:  NCEI Accession 0174501 v1.1
                                    description:  published 2018-07-20T22:43:18Z
                                    function:  (CI_OnLineFunctionCode) download
                            role: (inapplicable)
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) dataset
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Sound Speed (CTD) (calculated); Units: m/s; Observation Category: in situ; Sampling Instrument: Seabird SBE 19plus CTD; Sampling and Analyzing Method: Data from CTD (conductivity, temperature and pressure) sensor lowered through the water column to the seafloor. Resulting data uploaded, examined and used to calculate sound speed through water column.; Data Quality Method: Dual CTD casts were obtained and reviewed together as a quality control check to ensure proper working order. The difference between the sound speed measured by the CTD and the sound speed calculated at the multibeam transducer was monitored in the multibeam control software. A difference of more than 2 m/s indicated a new cast may need to be taken..
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    metadataMaintenance:  (MD_MaintenanceInformation)
        maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) asNeeded
        maintenanceNote:  Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness.
        contact:  (CI_ResponsibleParty)
            organisationName:  NOAA National Centers for Environmental Information
            role:  (CI_RoleCode) custodian
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    acquisitionInformation:  (MI_AcquisitionInformation)
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  CTD
            type:  CTD
            description:  Conductivity-Temperature-Depth probe