Northwest Pacific Stable Isotope Data and SSS/SST Reconstructions

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Oba, T. and M. Murayama
Publication_Date: 12/2004
Title: Northwest Pacific Stable Isotope Data and SSS/SST Reconstructions
Edition:
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name: IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2004-086
Issue_Identification: 2004-086
Publication_Information:
Publication_Place: Boulder, CO
Publisher: IGBP PAGES/World Data Center for Paleoclimatology
Other_Citation_Details:
NOAA/NCDC Paleoclimatology Program
Online_Linkage: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/paleocean/by_contributor/oba2004/oba2004.txt
Description:
Abstract:
The oxygen isotope records of both benthic and planktonic Foraminifera in five piston cores, collected from the region between the Oyashio and Kuroshio Currents near Japan, clearly show the marked latitudinal shifts of these two currents during the past 25 kyr. Under the present hydrographic condition, a clear relationship between the sea-surface temperature (SST) and oxygen isotope differences from benthic to planktonic Foraminifera is observed in this region. Using this relationship, we find decreased SSTs of 12-13°C (maximum 15°C) in the southernmost core site at the Last Glacial Maximum (LGM), indicating the Oyashio Current shifted southward. The SSTs at the southern two core sites abruptly increased more than 10°C at 10-11 ka, suggesting the Kuroshio Current shifted northward over these sites at 10-11 ka. In contrast, the northern two core sites have remained under the influence of the cold Oyashio Current for the past 25 kyr. With the reasonable estimate of bottom-water temperature decrease of 2.5°C at the LGM, the SSTs estimated by this new method give exactly the same SST values calculated from Mg/Ca ratio of planktonic Foraminifera, allowing palaeosea-surface salinities to be reconstructed. The result suggests that the ice volume effect was 1.0 ± 0.1 per mil at the LGM.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Oba, T. and M. Murayama. 2004. Sea-surface temperature and salinity changes in the northwest Pacific since the Last Glacial Maximum. Journal of Quaternary Science, Volume 19, Issue 4, Pages 335 - 346.
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 119.32
East_Bounding_Coordinate: 119.32
North_Bounding_Coordinate: 42.45
South_Bounding_Coordinate: 42.45
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 143.52
East_Bounding_Coordinate: 143.52
North_Bounding_Coordinate: 41.12
South_Bounding_Coordinate: 41.12
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 143.37
East_Bounding_Coordinate: 143.37
North_Bounding_Coordinate: 38.88
South_Bounding_Coordinate: 38.88
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 141.78
East_Bounding_Coordinate: 141.78
North_Bounding_Coordinate: 35.02
South_Bounding_Coordinate: 35.02
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: PROJECT
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > STABLE ISOTOPES
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE
Theme_Keyword: EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > OCEAN/LAKE RECORDS > ISOTOPES
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > OCEAN/LAKE RECORDS > MICROFOSSILS
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > OCEAN/LAKE RECORDS > OXYGEN ISOTOPES
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > PALEOCLIMATE RECONSTRUCTIONS > OCEAN SALINITY RECONSTRUCTION
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > PALEOCLIMATE RECONSTRUCTIONS > SEA SURFACE TEMPERATURE RECONSTRUCTION
Theme_Keyword: EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PROTISTS > AMOEBOIDS > FORAMINIFERS
Theme_Keyword: PAGES > PAST GLOBAL CHANGES, IGBP
Theme_Keyword: D18o
Theme_Keyword: Dc13
Theme_Keyword: Oxygen Isotopes
Theme_Keyword: Carbon Isotopes
Theme_Keyword: Sst Reconstruction
Theme_Keyword: Sea Surface Salinity Reconstruction
Theme_Keyword: Sss
Theme_Keyword: GEOSCIENTIFIC INFORMATION
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN > SEA OF JAPAN
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: TADAMICHI OBA
Contact_Person_Primary:
Contact_Person: M. MURAYAMA
Contact_Position: INVESTIGATOR
Contact_Position: INVESTIGATOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Graduate School of Environmental Earth Science
Address: Hokkaido University
Country: Japan
Contact_Address:
Address_Type: Mailing and Physical Address
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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
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Spatial_Reference_Information:
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: WDC/PALEOCLIMATOLOGY, BOULDER > World Data Center for Paleoclimatology, Boulder
Contact_Person: WDC/PALEOCLIMATOLOGY, BOULDER
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: World Data Center for Paleoclimatology
Address: NOAA/NCDC Code E/GCx3
Address: 325 Broadway
City: Boulder
State_or_Province: CO
Postal_Code: 80303
Country: USA
Contact_Voice_Telephone: +1 (303) 497-6160
Contact_Facsimile_Telephone: +1 (303) 497-6513
Contact_Electronic_Mail_Address: paleo@noaa.gov
Resource_Description: NOAA_NCDC_PALEO_2004-086
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: text, excel
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.ncdc.noaa.gov/paleo/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
ftp://ftp.ncdc.noaa.gov/pub/data/paleo/paleocean/b...
Access_Instructions:
Access to documentation and data files
Fees: None
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Metadata_Reference_Information:
Metadata_Date: 20061218
Metadata_Review_Date: 20070315
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
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