GEOSECS Atlantic, Pacific, Indian, and Mediterranean Radiocarbon Data

Federal Geographic Data Committee (FGDC) Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Reference_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Ostlund, H.G.

Publication_Date: 1988

Title: GEOSECS Atlantic, Pacific, Indian, and Mediterranean Radiocarbon Data

Edition:

Geospatial_Data_Presentation_Form:

Series_Information:

Series_Name: NDP-027

Issue_Identification:

Publication_Information:

Publication_Place: Oak Ridge, TN

Publisher: Carbon Dioxide Information Analysis Center

Other_Citation_Details:

Online_Linkage: http://cdiac.esd.ornl.gov/oceans/ndp027.html

Description:

Abstract:

This package contains radiocarbon data from the Atlantic, Pacific, and Indian Oceans obtained during the Geochemical Ocean Section Study (GEOSECS). GEOSECS, initiated in 1971 and coordinated by Scripps Institution of Oceanography, was designed to establish a baseline data base for assessing future chemical changes in the world's oceans and to provide a better understanding of large-scale oceanic transport and mixing processes. During the GEOSECS expeditions, over 2,200 water samples were collected. Samples for carbon-14 were collected at 124 stations, and approximately 18 samples were collected at each station from intervals throughout the water column. The sampling technique and measurement procedure used in the radiocarbon determinations is described in Stuiver et al. (1974). On board the ship, the samples for radiocarbon were water drawn from 270-liter Gerard barrels, and CO2 was extracted following a method derived from Fonselius and Ostlund (1959). The CO2 samples were absorbed in excess NaOH, deposited in well-sealed bottles and sent to laboratories for processing. Delta 14C values are recalculated to a standardized state of isotopic fractionation equivalent to standard wood (del 13C = -25 permil) and are related to activities at the time of sampling. All the radiocarbon, hydrographic, and position data presented in this package have been provided by the Oceanographic Data Facility at Scripps. Data included in this package include the following: position (degrees and minutes), sample number, depth (in meters calculated from density and pressure), potential temperature, salinity, and delta 14C determinations from the University of Miami and the University of Washington. The GEOSECS radiocarbon data were used to establish the gross rate of deep-ocean circulation. Stuiver et al. (1983) summarized these data and concluded that replacement times of the waters below 1,500 meters in the Atlantic, Indian, and Pacific Oceans are, respectively, about 275, 250, and 510 years. These radiocarbon data also reflect the general trend of deep circulation from the Atlantic to the other oceans and are of value in establishing parameters in multidimensional ocean models. All CDIAC numerical data packages include copies of pertinent literature discussing the data, summaries discussing the background, source and scope of the data, as well as applications limitations and restrictions of the data. More information is available from: "http://cdiac.esd.ornl.gov/oceans/ndp027.html"

Purpose:

Not Available

Supplemental_Information:

REFERENCE: Fonselius, S., and H.G. Ostlund, 1959: 'Natural radiocarbon measurements on surface water from the North Atlantic and the Arctic Sea.' Tellus, 11:77-82. Stuiver, M., S.W. Robinson, H.G. Ostlund, and H.G. Dorsey, 1974: 'Carbon-14 calibration between the University of Washington and the University of Miami GEOSECS laboratories.' Earth and Planetary Science Letters, 23:65-68. Stuiver, M., and H.G. Ostlund, 1980: 'GEOSECS Atlantic radiocarbon.' Radiocarbon, 22:1-24. Ostlund, H.G., and M. Stuiver, 1980: 'GEOSECS Pacific radiocarbon.' Radiocarbon, 22:25-53. Stuiver, M., and H.G. Ostlund, 1983: 'GEOSECS Indian Ocean and Mediterranean radiocarbon.' Radiocarbon, 25:1-29. Stuiver, M., P.D. Quay, and H.G. Ostlund, 1983: 'Abyssal water carbon-14 distribution and the age of the world oceans.' Science, 219:849-851.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19720101

Ending_Date: 19780101

Currentness_Reference:Unknown

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Description_of_Geographic_Extent:

Bounding_Coordinates:

West_Bounding_Coordinate: -180.0

East_Bounding_Coordinate: 180.0

North_Bounding_Coordinate: 60.0

South_Bounding_Coordinate: -60.0

Keywords:

Theme:

Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS

Theme_Keyword_Thesaurus: GCMD PLATFORM

Theme_Keyword_Thesaurus: GCMD INSTRUMENT

Theme_Keyword_Thesaurus: PROJECT

Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS

Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY

Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON

Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE

Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OCEAN TRACERS

Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > RADIOCARBON > CARBON 14

Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE

Theme_Keyword: EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY

Theme_Keyword: SHIPS

Theme_Keyword: NISKIN BOTTLES

Theme_Keyword: GEOSECS > GEOCHEMICAL OCEAN SECTION STUDY

Theme_Keyword: Chemical Oceanography

Theme_Keyword: Deep Ocean Circulation

Theme_Keyword: Large Scale Oceanic Transport

Theme_Keyword: Marine Geochemistry

Theme_Keyword: Ndp-027

Theme_Keyword: Radiocarbon

Theme_Keyword: GEOSCIENTIFIC INFORMATION

Theme_Keyword: OCEANS

Place:

Place_Keyword_Thesaurus: GCMD

Place_Keyword: OCEAN > ARCTIC OCEAN

Place_Keyword: OCEAN > ATLANTIC OCEAN

Place_Keyword: OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > MEDITERRANEAN SEA

Place_Keyword: OCEAN > INDIAN OCEAN

Place_Keyword: OCEAN > PACIFIC OCEAN

Place_Keyword: GEOGRAPHIC REGION > EQUATORIAL

Place_Keyword: GEOGRAPHIC REGION > MID-LATITUDE

Place_Keyword: GEOGRAPHIC REGION > POLAR

Place_Keyword: VERTICAL LOCATION > SEA SURFACE

Access_Constraints: Not Available

Use_Constraints:

Not Available

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: MINZE STUIVER

Contact_Position: TECHNICAL CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Quaternary Isotope Laboratory

Address: University of Washington

Address: Department of Geological Sciences

City: Seattle

State_or_Province: WA

Postal_Code: 98195-1310

Country: USA

Contact_Voice_Telephone: (206) 685-1735

Contact_Electronic_Mail_Address: minze@u.washington.edu

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Not Available

Logical_Consistency_Report:

Not Available

Completeness_Report:

Not Available

Lineage:

Process_Step:

Process_Description:

Not Available

Process_Date: Unknown

Spatial_Reference_Information:

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: DOE/ORNL/ESD/CDIAC > Carbon Dioxide Information Analysis Center, Environmental Sciences Division, Oak Ridge National Laboratory, U. S. Department of Energy

Contact_Person: CARBON DIOXIDE INFORMATION ANALYSIS CENTER

Contact_Position: DATA CENTER CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Carbon Dioxide Information Analysis Center (CDIAC)

Address: Oak Ridge National Laboratory

Address: P.O.. Box 2008

City: OAK RIDGE

State_or_Province: TENNESSEE

Postal_Code: 37831-6335

Country: USA

Contact_Facsimile_Telephone: (865) 574-2232

Resource_Description: NDP-027

Distribution_Liability:

Not Available

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Transfer_Size: 50.4 KB

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://cdiac.ornl.gov/

Access_Instructions:

DATA CENTER URL

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://cdiac.esd.ornl.gov/ftp/ndp027/

Access_Instructions:

NDP-027 Data Files

Fees: None

Metadata_Reference_Information:

Metadata_Date:

Metadata_Review_Date: 20090121

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: GCMD User Support Office

Contact_Organization: NASA Global Change Master Directory

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Not Available

City: Lanham

State_or_Province: MD

Postal_Code: 20706

Country: USA

Contact_Voice_Telephone: Not Available

Contact_Electronic_Mail_Address: gcmduso@gcmd.gsfc.nasa.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time