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CTD cast data from 45 R/V Alpha Helix and R/V Wecoma Long-Term Observation Program (LTOP) cruises to the Coastal Gulf of Alaska from 1997-2004 as part of the U.S. GLOBEC program (NEP project) (NCEI Accession 0113922)


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            title:  CTD cast data from 45 R/V Alpha Helix and R/V Wecoma Long-Term Observation Program (LTOP) cruises to the Coastal Gulf of Alaska from 1997-2004 as part of the U.S. GLOBEC program (NEP project) (NCEI Accession 0113922)
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1416 Biological and Chemical Oceanography Data Management Office (BCO-DMO)
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                  Anchor:  http://lod.bco-dmo.org/id/person/50468 Thomas J. Weingartner
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/180 University of Alaska Fairbanks (UAF)
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                  Anchor:  http://lod.bco-dmo.org/id/person/50468 Weingartner, Thomas J.
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/180 University of Alaska Fairbanks
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        abstract:  This dataset contains biological, meteorological, optical, and physical data collected on R/V Alpha Helix and R/V Wecoma during cruises HX201, HX203, HX205, HX208, HX211, HX215, HX216, HX217, HX218, HX219, HX223, HX225, HX226, HX228, HX230, HX231, HX234, HX237, HX238, HX239, HX241, HX243, HX246, HX248, HX252, HX253, HX254, HX257, HX258, HX262, HX263, HX267, HX268, HX269, HX270, HX272, HX276, HX279, HX280, HX281, HX283, HX286, HX292, HX293, and W0307A in the Gulf of Alaska from 1997-10-10 to 2004-12-09. These data include PAR, barometric pressure, fluorescence, light transmission (volts), salinity calculated from CTD primary sensors, sigma-t, and temp2. The instruments used to collect these data include CTD profiler. These data were collected by Dr Thomas J. Weingartner of University of Alaska Fairbanks as part of the "U.S. GLOBEC Northeast Pacific (NEP)" project and "U.S. GLOBal ocean ECosystems dynamics (U.S. GLOBEC)" program. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NCEI on 2019-11-28. The following is the text of the dataset description provided by BCO-DMO: AK-LTOP CTD cast data Dataset Description: CTD datasets from the CGOA LTOP project Contributor: Tom Weingartner
        purpose:  This dataset is available to the public for a wide variety of uses including scientific research and analysis.
        credit:  Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-0109078 Award URL: http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=0109078
        credit:  Funding provided by National Oceanic and Atmospheric Administration (NOAA) Award Number: unknown NEP NOAA
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                    date:  2019-11-28
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/38 BAROMETRIC PRESSURE
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/147 FLUORESCENCE
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/214 LIGHT TRANSMISSION
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/272 PHOTOSYNTHETIC ACTIVE RADIATION (PAR)
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/307 SALINITY
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/insttype/details/8 CTD
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              Anchor:  http://lod.bco-dmo.org/id/deployment/57502 HX201
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57503 HX203
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              Anchor:  http://lod.bco-dmo.org/id/deployment/57504 HX205
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              Anchor:  http://lod.bco-dmo.org/id/deployment/57506 HX211
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57507 HX215
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57508 HX216
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57509 HX217
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57510 HX218
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57511 HX219
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57512 HX223
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57513 HX225
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              Anchor:  http://lod.bco-dmo.org/id/deployment/57514 HX226
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57515 HX228
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57516 HX230
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57517 HX231
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57518 HX234
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57519 HX237
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57520 HX238
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57521 HX239
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              Anchor:  http://lod.bco-dmo.org/id/deployment/57522 HX241
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              Anchor:  http://lod.bco-dmo.org/id/deployment/57524 HX243
            keyword:
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            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57528 HX248
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57529 HX252
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57530 HX253
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57531 HX254
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57532 HX257
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57533 HX258
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57534 HX262
            keyword:
              Anchor:  http://lod.bco-dmo.org/id/deployment/57535 HX263
            keyword:
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                      Anchor:  http://lod.bco-dmo.org/id/person/50468 Weingartner, Thomas J.
                    organisationName:
                      Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/180 University of Alaska Fairbanks
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                            linkage: http://lod.bco-dmo.org/id/person/50468
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                            name:  University of Alaska Fairbanks website
                            description:  Institution web page
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                      Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1416 Biological and Chemical Oceanography Data Management Office (BCO-DMO)
                    contactInfo:  (CI_Contact)
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                            linkage: http://bcodmo.org
                            protocol:  HTTP
                            name:  Biological and Chemical Oceanography Data Management Office website
                            description:  Institution web page
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                    role:  (CI_RoleCode) publisher
                presentationForm:  (CI_PresentationFormCode) tableDigital
            associationType:  (DS_AssociationTypeCode) crossReference
            initiativeType:  (DS_InitiativeTypeCode) collection
        language:
          LanguageCode:  eng; USA
        characterSet:  (MD_CharacterSetCode) utf8
        topicCategory:  (MD_TopicCategoryCode) environment
        topicCategory:  (MD_TopicCategoryCode) oceans
        topicCategory:  (MD_TopicCategoryCode) climatologyMeteorologyAtmosphere
        extent:  (EX_Extent)
            geographicElement:  (EX_GeographicBoundingBox)
                westBoundLongitude:  -150.936
                eastBoundLongitude:  -143.669
                southBoundLatitude:  57.8
                northBoundLatitude:  61.26
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    beginPosition:  1997-10-10
                    endPosition:  2004-12-09
        supplementalInformation:  Acquisition Description: Progress Report: April 1999 Project Title: The Gulf of Alaska GLOBEC LTOP Program Investigators: Thomas Weingartner (PI), A. J. Paul (PI), Ken Coyle (PI), Lew Haldorson (PI), Dean Stockwell (PI), Terry Whitledge (PI), Jennifer Boldt, Seth Danielson, Alexei Pinchuk, and Amy Ruehs (All at University of Alaska), and Tom Royer (PI; Old Dominion Univ.) The LTOP monitoring in the Gulf of Alaska completed its first year of sampling which included week-long cruises using the Alpha Helix in October 1997, and March, April, May, July, October, and December 1998. Sampling on all cruises included occupying stations along the Seward Line, which extends from the inner shelf to the edge of the continental slope. At each station CTD profiles and water samples for nutrients, chlorophyll and zooplankton nauplii were collected. Additional sampling includes MOCNESS tows at each of these stations with the tow depths chosen on the basis of backscatter from a 4- frequency, split-beam towed transducer array. The MOCNESS samples allow verification of the acoustical results and provide samples for species identification and additional analyses. The transducer is towed continually along the line and in conjunction with underway measurements of sea surface temperature, salinity, fluorescence and ADCP data provide data at very high spatial resolution. This standard sampling was supplemented during the July and October cruises with coincidental trawls from a charterd fishing vessel and surface gill nets from the Alpha Helix. We have also provided samples and/or sampling opportunities to other scientists for measurements of stable isotope composition of biota, dissolved carbon, bacteria, microzooplankton, seabird and marine mammal, and circulation. The data suggest that the shelf is organized into three distinct dynamic and biological regimes. The innermost portion of the shelf consists of the Alaska Coastal Current, which is a high speed, persistent, dilute coastal current which is generally low in nutrients and chlorophyll. The inner shelf is segregated from the midshelf region by a salinity front. Nutrient concentrations, chlorophyll biomass, zooplankton, fish and seabird abundances appear to be consistently high just offshore of this front. However, it is not clear if this region of locally high biological productivity is associated with frontal processes or with the locally complicated bathymetry and coastline curvature. Over the midshelf region the circulation is weak and variable and biological abundances appear to be patchy in time and space. This region of the shelf often contains eddies having a diamter of ~50km. A third regime straddles the shelfbreak salinity front. Flow here is also swift (and often reflects shoreward movement of the Alaskan Stream) and nutrient, chlorophyll and zooplankton conentrations tend to be relatively high. Fish, seabird, and mammal abundances are also relatively high in this region. There is some suggestion that the vertebrate community structure here differs from that of the inner shelf. Time permitting we augment the sampling along the Seward Line with additional alongshore transects. While these are relatively few in number they suggest that biological production is highly patchy owing perhaps to very complicated bathymetry. The first year of sampling occurred during an El Nino year and the physical effects of this phenomenom included unusually warm (~1-2C above normal) and fresh (.15 psu) waters over the uper 200 m of the shelf. By summer, deep water temperatures were returning to normal and deep water salinities were above normal. The reason for the latter is not known but it implies either abnormally high upwelling rates or changes in the the composition of the offshore water masses that annually flow inshore. Higher salinities imply higher nutrient concentrations. However, it is not clear that changes in deep nutrient concentrations in the deep water on the shelf affect surface production. Additional information about the GLOBEC LTOP in the Coastal Gulf of Alaska, including plots of cruise results, station locations, etc., can be obtained at: http://www.ims.uaf.edu/GLOBEC/ In this accession, NCEI has archived multiple versions of these data. The latest (and best) version of these data has the largest version number.
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    distributionInfo:  (MD_Distribution)
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1730 NOAA National Centers for Environmental Information
                contactInfo:  (CI_Contact)
                    phone:  (CI_Telephone)
                        voice:  +1-301-713-3277
                    address:  (CI_Address)
                        electronicMailAddress:  NCEI.Info@noaa.gov
                role:  (CI_RoleCode) pointOfContact
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                fees:  In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
                orderingInstructions:  Contact NCEI for other distribution options and instructions.
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                    linkage: https://www.ncei.noaa.gov/archive/accession/0113922
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                    linkage: https://www.ncei.noaa.gov/archive/accession/oas/113922
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                    function:  (CI_OnLineFunctionCode) download
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                    linkage: ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0062/0113922/
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                    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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                description:  NCEI Accession 0113922 v1.1 was published.
                dateTime:
                  DateTime:  2013-10-27T13:47:31Z
                output:  (LE_Source)
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                        title:  NCEI Accession 0113922 v1.1
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                                    name:  NCEI Accession 0113922 v1.1
                                    description:  published 2013-10-27T13:47:31Z
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                description:  NCEI Accession 0113922 was revised and v2.2 was published.
                rationale:  Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.
                dateTime:
                  DateTime:  2023-05-04T07:17:31Z
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                        title:  NCEI Accession 0113922 v2.2
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                                    description:  published 2023-05-04T07:17:31Z
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                other:  NOAA National Centers for Environmental Information
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                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.
        maintenanceNote:  NCEI Accession 0113922 was revised and a new version of the archival package was published. Updates to existing archival packages may provide additional files or replace obsolete files. The latest version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession. Please see journal.txt in the /about directory for additional details on changes made.
        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
        platform:  (MI_Platform)
            identifier:  (MD_Identifier)
                code:  R/V WECOMA
            description:  R/V WECOMA is owned by the National Science Foundation and operated under a Cooperative Agreement by Oregon State University, College of Oceanic & Atmospheric Sciences.
            instrument: (missing)
        platform:  (MI_Platform)
            identifier:  (MD_Identifier)
                code:  RV Alpha Helix
            description:  Updated information from ICES for the platform ALPHA HELIX from UNITED STATES. Name : ALPHA HELIX Flag : UNITED STATES - US (ISO Country Code) Call Sign : WSD7078 Title : RV Platform Class : Research vessel IMO : 6600905 Commissioned Date : 1966 Current Length : 41 Built : 1966 Notes : In 2007 University of Alaska Fairbanks sold the vessel to Stabbert Maritime Information Source : http://www.rvdata.us/voc/vessel (URL) Lloyds URL : http://www.seasearcher.com/lmiu/vessels/overview.htm?vesselID=70572
            instrument: (missing)