Metadata: Identification_Information: Citation: Citation_Information: Originator: Lisa L. Robbins Originator: Jonathan Wynn Originator: Paul O. Knorr Originator: Bogdan Onac Originator: John Lisle Originator: Kate McMullen Originator: Kimberly K. Yates Originator: Robert H. Byrne Originator: Xuewu Liu Publication_Date: 2014 Title: USGS Arctic Ocean Carbon Cruise 2012: Discrete Underway Laboratory data Geospatial_Data_Presentation_Form: tabular digital data Series_Information: Series_Name: Data Series Issue_Identification: 862 Publication_Information: Publication_Place: St. Petersburg, Fla Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/ds/0862/ Description: Abstract: Models project the Arctic Ocean will become undersaturated with respect to carbonate minerals in the next decade. Recent field results indicate parts may already be undersaturated in late summer months when ice melt is at its greatest extent; however, few comprehensive datasets of carbonate system parameters in the Arctic Ocean exist. Researchers from the U.S. Geological Survey (USGS) and University of South Florida (USF) collected high-resolution measurements of pCO2, pH, total dissolved inorganic carbon (DIC), total alkalinity (TA), and carbonate (CO3-2) from the Canada Basin to fill critical information gaps concerning Arctic carbon variability. A Multiparameter Inorganic Carbon Analyzer (MICA) was used to collect approximately 1,800 measurements of pH and DIC along an 11,965-km trackline in August and September 2012. In addition, over 500 discrete surface water samples were taken. These data are being used to characterize and model regional pCO2, pH, and carbonate mineral saturation state. A high-resolution, three-dimensional map of these results will be presented. Purpose: Data collected onboard the United States Coast Guard Cutter (USCGC) Healy during the 2012 Arctic Cruise will be used to create regional maps of seawater carbonate parameters, including pCO2 flux/change maps, and derivative maps on saturation state. Maps depicting pCO2 and carbonate saturation states over large latitudinal and nearshore to offshore gradients are needed for the Arctic, where significant decline of carbonate ecosystems, habitats, and calcifying organisms are predicted over the next decade. The data will allow the USGS to map variations in ocean chemistry along designated tracks and will be used in models to predict future Arctic Ocean saturation states. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20120801 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -175.100802 East_Bounding_Coordinate: -157.354060 North_Bounding_Coordinate: 83.076734 South_Bounding_Coordinate: 73.037156 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:40752912-0a96-455e-931d-8e2e4a9ae7c3 Theme: Theme_Keyword_Thesaurus: Ocean Chemistry Theme_Keyword: Ocean Acidification Theme_Keyword: pCO2 Theme_Keyword: total carbon Theme_Keyword: carbon flux Theme_Keyword: pH Theme_Keyword: Salinity Theme_Keyword: Temperature Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: assessments Theme_Keyword: water column features Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) Keywords Theme_Keyword: chemical analysis Theme_Keyword: chemical oceanography Theme_Keyword: ocean acidification Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: chemical analysis Theme_Keyword: marine chemistry Theme_Keyword: ocean acidification Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Arctic Ocean Place_Keyword: Canada Basin Place_Keyword: Alaska Place_Keyword: Canada Access_Constraints: none Use_Constraints: Please acknowledge the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center as a data source in products developed from these data, and such acknowledgment as is standard for citation and legal practices for data source is expected by users of this dataset. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Lisa Robbins Contact_Organization: U.S. Geological Survey St. Petersburg Coastal and Marine Science Center Contact_Position: Research Oceanographer Contact_Address: Address_Type: physical Address: 600 4th Street South City: St. Petersburg State_or_Province: Florida Postal_Code: 33701 Country: USA Contact_Voice_Telephone: 727-502-8005 Contact_Facsimile_Telephone: 727-502-8182 Contact_Electronic_Mail_Address: lrobbins@usgs.gov Hours_of_Service: 8am to 5pm M-F EST Data_Set_Credit: U.S. Geological Survey St. Petersburg Coastal and Marine Science Center Native_Data_Set_Environment: Microsoft Windows 7; Microsoft Excel 2010, Version 14.0.6129.5000 (32-bit) Data_Quality_Information: Logical_Consistency_Report: The QA/QC process looked for internal inconsistencies in the data by taking the results calculated using CO2SYS and comparing them with the collected data. Completeness_Report: These data are collected along tracklines (2-D) and are therefore inherently incomplete. Geologic details between lines must be inferred. Lineage: Process_Step: Process_Description: Seawater samples were collected from the sampling manifold of the shipboard flow-through seawater system in 300-mL borosilicate glass biochemical oxygen demand (BOD) bottles. Samples were preserved by adding 100 microliters of a saturated solution of mercuric chloride (HgCl2) and were sealed with a ground glass stopper lightly coated with Apiezon grease. Samples were transported to the USGS Carbon Chemistry Lab in St. Petersburg, Fla. Total alkalinity samples were analyzed using an Ocean Optics USB 2000 spectrophotometer, bromol cresol purple indicator dye, and the methods of Yao and Byrne (1998). Total carbon was analyzed using coulometric methods of Dickson and others (2007). Precision and accuracy for these methods was 1 micromole/kg for TA and TCO2. Process_Date: 20120711 Process_Time: 1600 Source_Produced_Citation_Abbreviation: HLY1202_Discrete_Lab.csv Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Lisa Robbins Contact_Organization: U.S. Geological Survey St. Petersburg Coastal Marine and Science Center Contact_Address: Address_Type: Physical Address: 600 4th Street South City: St. Petersburg State_or_Province: Florida Postal_Code: 33701 Country: USA Contact_Voice_Telephone: 727-502-8005 Process_Step: Process_Description: Keywords section of metadata optimized for discovery in USGS Coastal and Marine Geology Data Catalog. Process_Date: 20170315 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Alan O. Allwardt Contact_Position: Contractor -- Information Specialist Contact_Address: Address_Type: mailing and physical address Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-460-7551 Contact_Facsimile_Telephone: 831-427-4748 Contact_Electronic_Mail_Address: aallwardt@usgs.gov Process_Step: Process_Description: Added keywords section with USGS persistent identifier as theme keyword. Process_Date: 20201013 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Entity point Point_and_Vector_Object_Count: 34 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 8.98315284119521e-009 Longitude_Resolution: 8.98315284119521e-009 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: D_WGS_1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.00 Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: HLY1202_Discrete_Lab.csv Entity_Type_Definition: Discrete underway seawater samples that were analyzed in an onshore-laboratory after the HLY 2012 cruise. Entity_Type_Definition_Source: user-defined Attribute: Attribute_Label: Date_(UTC) Attribute_Definition: Date in Coordinated Universal Time (UTC) Attribute_Definition_Source: National Institute of Standards and Technology Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: x/x/2012 Range_Domain_Maximum: x/x/2012 Attribute_Units_of_Measure: dd/mm/yyyy Attribute: Attribute_Label: Time_(UTC) Attribute_Definition: Time (24-hour clock) in Coordinated Universal Time (UTC) Attribute_Definition_Source: National Institute of Standards and Technology Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 00:00 Range_Domain_Maximum: 23:59 Attribute_Units_of_Measure: hh:mm Attribute: Attribute_Label: Sample_ID Attribute_Definition: Sample identification number. Sample numbers correspond to HLY1202_Discrete_Underway.csv Sample_ID numbers. Attribute_Definition_Source: user-defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 627 Attribute: Attribute_Label: Latitude_(Decimal_Degrees) Attribute_Definition: Latitude in decimal degrees Attribute_Definition_Source: WGS 84 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 83.49 Range_Domain_Maximum: 88.4 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: Longitude_(Decimal_Degrees) Attribute_Definition: Longitude in decimal degrees Attribute_Definition_Source: WGS 84 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -175.95 Range_Domain_Maximum: -154.73 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: SST_(Celsius) Attribute_Definition: Seawater Surface Temperature, degrees Celsius, measured using the USCGC Healy's SBE3 remote temperature probe. This value is the sea surface temperature. Attribute_Definition_Source: user-defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -1.535 Range_Domain_Maximum: 3.701 Attribute_Units_of_Measure: Celsius Attribute: Attribute_Label: Salinity_(PSU) Attribute_Definition: Salt content, in Practical Salinity Units, measured using the USCGC Healy's SBE45 instrument. Attribute_Definition_Source: user-defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 24.456 Range_Domain_Maximum: 30.979 Attribute_Units_of_Measure: Practical Salinity Units (PSU) Attribute: Attribute_Label: DIC_(µmol_kg-L-sw) Attribute_Definition: Dissolved inorganic carbon content of seawater in micromoles per kilogram. Attribute_Definition_Source: user-defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1686.6 Range_Domain_Maximum: 1944 Attribute_Units_of_Measure: micromoles per kilogram Attribute: Attribute_Label: TA_(µmol_kg-L-sw) Attribute_Definition: Total alkalinity seawater in micromoles per kilogram. Attribute_Definition_Source: user-defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1760.11 Range_Domain_Maximum: 2047.7 Attribute_Units_of_Measure: micromoles per kilogram. Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Lisa Robbins Contact_Organization: U.S. Geological Survey St. Petersburg Coastal Marine and Science Center Contact_Address: Address_Type: Physical Address: 600 4th Street South City: St. Petersburg State_or_Province: Florida Postal_Code: 33701 Country: USA Contact_Voice_Telephone: 727-502-8005 Resource_Description: Downloadable Data Distribution_Liability: This publication was prepared by an agency of the United States Government. Although these data have been processed successfully on a computer system at the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The USGS shall not be held liable for improper or incorrect use of the data described and/or contained herein. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: CSV Transfer_Size: .010 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/ds/0862/ Fees: Free, if obtained online. Metadata_Reference_Information: Metadata_Date: 20210923 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Paul O. Knorr Contact_Organization: U.S. Geological Survey Contact_Position: Research Associate Contact_Address: Address_Type: mailing address Address: 600 4th Street South City: St. Petersburg State_or_Province: Florida Postal_Code: 33701 Country: USA Contact_Voice_Telephone: 727-502-8000 Contact_Facsimile_Telephone: 727-502-8182 Contact_Electronic_Mail_Address: pknorr@usgs.gov Hours_of_Service: 8am to 5pm M-F EST Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time