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Dissolved inorganic carbon, alkalinity, and associated variables collected from Ocean Weather Station M (OWSM) at 66° N, 2° E in the Norwegian Sea from 2001-10-31 to 2021-07-30 (NCEI Accession 0112884)


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            title:  Dissolved inorganic carbon, alkalinity, and associated variables collected from Ocean Weather Station M (OWSM) at 66° N, 2° E in the Norwegian Sea from 2001-10-31 to 2021-07-30 (NCEI Accession 0112884)
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        abstract:  This dataset includes chemical and physical time series data collected from the full water column at Ocean Weather Station M (OWSM) at 66° N, 2° E in the Norwegian Sea between 2001-10-31 and 2021-07-30. The data include Dissolved Inorganic Carbon (TCARBN), Total Alkalinity (ALKALI), water temperature (CTDTMP), and salinity (CTDSAL). Between 2001 and 2007, the dataset also includes Dissolved Oxygen (OXYGEN), nitrate (NITRATE), phosphate (PHSPHT), and silicate (SILICAT). Samples for TCARBN, ALKALI, OXYGEN, and nutrients were collected using Niskin bottles. Water temperature and salinity were monitored using a SeaBird MicroCAT CTD, which regularly was calibrated towards bottle salinity. The ALKALI samples were analysed using a VINDTA 3S instrument with accuracy ±2 µmol kg-1. The TCARBN samples were analysed using a SOMMA instrument between 2001 and 2003 and a VINDTA 3D from 2003 and onwards, both with coulometric titration and an accuracy of ±2 µmol kg-1. The accuracy was determined by using Certified Reference Material provided by prof. Andrew Dickson, Scripps Institution of Oceanography, USA. The data was collected by Ingunn Skjelvan (NORCE). During 2001 to 2007, Francisco Rey [Institute of Marine Research (IMR), Norway] and Svein Østerhus (NORCE) collected nutrients and hydrography data, respectively. NORCE and IMR are partner institutions of the Bjerknes Centre for Climate Research, Bergen, Norway. From 2001 to 2009, data was collected monthly using the weather ship Polarfront. From 2010 and onward, data was collected 4-6 times each year using different research vessels. This activity has received funding from the University of Bergen, NORCE, Bjerknes Centre for Climate Research, Research Council of Norway, Norwegian Environment Agency, and EUs FP7 program. OWSM, which is also called Station M, is part of the GOA-ON network and data is delivered to UNs SDG14.3.1. Additional datasets from OWSM: Hydrography since 1948 is available at Norwegian Marine Data Centre (NMDC; https://www.nmdc.no/nmdc). PI: Svein Østerhus, NORCE. Continuous surface and atmosphere partial pressure of CO2 (pCO2) from the weather ship Polarfront (2006-2009) and from a surface buoy (2011-2021) are available at SOCAT (https://www.socat.info/). PI: Ingunn Skjelvan, NORCE. Mixed layer pCO2 from 2020 and onwards is available at NMDC( http://metadata.nmdc.no/metadata-api/landingpage/e8d5a7951d11e034c6f934916a4c7532). PI: Ingunn Skjelvan, NORCE.
        purpose:  This dataset is available to the public for a wide variety of uses including scientific research and analysis.
        credit:  Funding Information: This activity has received funding from the University of Bergen, NORCE, Bjerknes Centre for Climate Research, Research Council of Norway, Norwegian Environment Agency, and EUs FP7 program.
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                title:  Skjelvan, I., E. Falck, F. Rey, and S.B. Kringstad, Inorganic carbon time series at Ocean Weather Station M in the Norwegian Sea, Biogeosc., 5, 549-560, www.biogeosciences.net/5/549/2008/, 2008.
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                title:  Skjelvan, I., S.K. Lauvset, T. Johannessen, K. Gundersen, and Ø. Skagseth, Decadal trends in Ocean Acidification from the Ocean Weather Station M in the Norwegian Sea, J Mar. Sys. 234, https://doi.org/10.1016/j.jmarsys.2022.103775, 2022.
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                    date:  2022-10
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                title:  NOAA National Centers for Environmental Information (2022). Ocean Carbon and Acidification Data System (OCADS). NOAA National Centers for Environmental Information. https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system
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                description:  NCEI Accession 0112884 v1.1 was published.
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                  DateTime:  2013-09-12T11:02:07Z
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                        title:  NCEI Accession 0112884 v1.1
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                description:  NCEI Accession 0112884 was revised and v2.2 was published.
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                dateTime:
                  DateTime:  2017-02-22T20:48:18Z
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            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0112884 was revised and v3.3 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:  2022-06-12T13:19:25Z
                output:  (LE_Source)
                    sourceCitation:  (CI_Citation)
                        title:  NCEI Accession 0112884 v3.3
                        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/0112884/3.3
                                    protocol:  HTTPS
                                    name:  NCEI Accession 0112884 v3.3
                                    description:  published 2022-06-12T13:19:25Z
                                    function:  (CI_OnLineFunctionCode) download
                            role: (inapplicable)
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0112884 was revised and v4.4 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:  2022-08-05T19:00:00Z
                output:  (LE_Source)
                    sourceCitation:  (CI_Citation)
                        title:  NCEI Accession 0112884 v4.4
                        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/0112884/4.4
                                    protocol:  HTTPS
                                    name:  NCEI Accession 0112884 v4.4
                                    description:  published 2022-08-05T19:00:00Z
                                    function:  (CI_OnLineFunctionCode) download
                            role: (inapplicable)
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0112884 was revised and v5.5 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:  2023-03-17T20:13:40Z
                output:  (LE_Source)
                    sourceCitation:  (CI_Citation)
                        title:  NCEI Accession 0112884 v5.5
                        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/0112884/5.5
                                    protocol:  HTTPS
                                    name:  NCEI Accession 0112884 v5.5
                                    description:  published 2023-03-17T20:13:40Z
                                    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: Dissolved Inorganic Carbon; Abbreviation: TCARBN; Unit: UMOL/KG; Observation type: Discrete measurements; In-situ / Manipulation / Response variable: In-situ observation; Measured or calculated: Measured; Detailed sampling and analyzing information: SOMMA, VINDTA 3D, Coulometric Titration, use of Certified Reference Material from A. Dickson, Scripps, USA.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Total alkalinity; Abbreviation: TALK; Unit: UMOL/KG; Observation type: Discrete measurements; In-situ / Manipulation / Response variable: In-situ observation; Measured or calculated: Measured; Curve fitting method: ALKALI data show anomalously high scatter and segregate into two groupings when plotted against CTDSAL. The lower ALKALI data are from stations 5030, 5048, 5063, 5089 and 5103; and are low by approximately 50 umol/kg.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Water Temperature; Abbreviation: CTDTMP; Unit: DEG_C; Controlled vocabulary name: WATER TEMPERATURE; Observation type: Profile; In-situ / Manipulation / Response variable: in-situ.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Salinity; Abbreviation: CTDSAL; Controlled vocabulary name: SALINITY; Observation type: Profile; In-situ / Manipulation / Response variable: in-situ; Measured or calculated: Measured.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: OXYGEN; Abbreviation: OXYGEN; Unit: UMOL/KG; Controlled vocabulary name: DISSOLVED OXYGEN; Observation type: Discrete measurement; In-situ / Manipulation / Response variable: in-situ; Measured or calculated: Measured.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Silicate; Abbreviation: SILCAT; Unit: UMOL/KG; Controlled vocabulary name: silicate; Observation type: Discrete measurement; In-situ / Manipulation / Response variable: in-situ; Measured or calculated: Measured.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Nitrate; Abbreviation: NITRAT; Unit: UMOL/KG; Controlled vocabulary name: NITRATE; Observation type: Discrete measurement; In-situ / Manipulation / Response variable: in-situ; Measured or calculated: Measured.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Phosphate; Abbreviation: PHSPHT; Unit: UMOL/KG; Controlled vocabulary name: phosphate; Observation type: Discrete measurement; In-situ / Manipulation / Response variable: in-situ; Measured or calculated: Measured .
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            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.
        maintenanceNote:  NCEI Accession 0112884 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:  bottle
            type:  bottle
            description:  any type of water bottle sampling device Generic name for water collection device; usually used to determine temperature, salinity and provide water aliquots for measurement of a wide range of parameters; often referred to by a specific type of water sampling bottle, such as a Nansen or Niskin bottle.
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  coulometer for DIC measurement
            type:  coulometer for DIC measurement
            description:  measures dissolved inorganic carbon (DIC) A known amount of seawater is dispensed into a stripping chamber where it is acidified and purged with an inert gas. The amount of CO2 in the resulting gas stream is determined by absorbing the CO2 in an absorbent. The pH of the solution is monitored by measuring the transmittance .
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  CTD
            type:  CTD
            description:  Conductivity-Temperature-Depth probe
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  titrator
            type:  titrator
            description:  titrator
        platform:  (MI_Platform)
            identifier:  (MD_Identifier)
                code:  POLARFRONT
            description:  Updated information from ICES for the vessel POLARFRONT from NORWAY. NOTE: Use 58P3 for data collected from Norway platform POLARFRONT from 1976 to 2010. Use FOPF for data collected from Faroe Islands platform POLARFRONT from 2010 to present. Name : POLARFRONT Flag : NORWAY - NO (ISO Country Code) Call Sign : LDWR Platform Class : 34 Vessel at fixed position - Includes light vessels and weather ships IMO : 7608708 Commissioned Date : 1976 Decommissioned Date : 2010-01-01 Current Length : 54.25 Built : 1976 Notes : Research vessel operating on OWS Mike Lloyds URL : http://www.lloydsmiu.com/lmiu/vessels/overview.htm?vesselID=152630 Additional Information Sources: - http://en.wikipedia.org/wiki/MS_Polarfront Same Vessels Info: FOPF - POLARFRONT General Comments: Contacted Vigdis Rong about platform class - fixed position vessel - weathership. ICES added info 2007-02-28
            instrument: (missing)