Oceanographic temperature, salinity, chlorophyll, and other measurements collected using Glider in the Atlantic and Mediterranean from 2004-2007 (NODC Accession 0012882)


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            title:  Oceanographic temperature, salinity, chlorophyll, and other measurements collected using Glider in the Atlantic and Mediterranean from 2004-2007 (NODC Accession 0012882)
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            otherConstraints:  Cite as: Villeon, Loic (2010). Oceanographic temperature, salinity, chlorophyll, and other measurements collected using Glider in the Atlantic and Mediterranean from 2004-2007 (NODC Accession 0012882). Version 1.1. National Oceanographic Data Center, NOAA. Dataset. [access date]
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                    beginPosition:  2004-10-02
                    endPosition:  2007-02-26
        supplementalInformation:  Temperature, salinity and other measurements found in dataset GLD taken from multiple platform(s)in the Mediterranean, North Atlantic and other locations from 2004 to 2007.
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                description:  NCEI Accession 0012882 v1.1 was published.
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            level:  (MD_ScopeCode) repository
            levelDescription:  (MD_ScopeDescription)
                other:  NOAA National Centers for Environmental Information
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
                dateTime:
                  DateTime:  2015-04-22T00:00:00
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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:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
            role:  (CI_RoleCode) custodian
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    acquisitionInformation:  (MI_AcquisitionInformation)
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  Glider
            type:  Glider
            description:  It's a type of autonomous underwater vehicle (AUV), making high spatial resolution sections repeatedly, and autonomously. An underwater glider is a type of autonomous underwater vehicle (AUV) that uses small changes in its buoyancy in conjunction with wings to convert vertical motion to horizontal, and thereby propel itself forward with very low power consumption. Gliders typically take measurements such as temperature, conductivity (to calculate salinity), currents, chlorophyll fluorescence, optical backscatter, bottom depth, and (occasionally) acoustic backscatter. They navigate with the help of periodic surface GPS fixes, pressure sensors, tilt sensors, and magnetic compasses. Gliders can be built to withstand various depths and pressures. Long range underwater gliders have recently become operational technology for oceanography. Their most promising role for ocean climate observations is to make high spatial resolution sections repeatedly, autonomously, and at very low cost compared to conventional methods involving ships or moorings. While they provide profiles, as ARGO floats do, the time and location of glider observations is remotely controllable. Gliders can collect repeat observations on a prescribed spatial grid tailored provide a description of how the ocean evolves in space and time on relevant scales. They provide a means for monitoring boundary currents, of particular importance to ocean climate.