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2,000-Year Northern Hemisphere Temperature Reconstruction

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Moberg, A., D.M. Sonechkin, K. Holmgren, N.M. Datsenko and W. Karlen
Publication_Date: February 2005
Title: 2,000-Year Northern Hemisphere Temperature Reconstruction
Edition:
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name: IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2005-019
Issue_Identification: 2005-019
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/contributions_by_author/moberg2005/nhtemp-moberg2005.txt
Description:
Abstract:
A number of reconstructions of millennial-scale climate variability have been carried out in order to understand patterns of natural climate variability, on decade to century timescales, and the role of anthropogenic forcing. These reconstructions have mainly used tree-ring data and other data sets of annual to decadal resolution. Lake and ocean sediments have a lower time resolution, but provide climate information at multicentennial timescales that may not be captured by tree-ring data. Here we reconstruct Northern Hemisphere temperatures for the past 2,000 years by combining low-resolution proxies with tree-ring data, using a wavelet transform technique to achieve timescale-dependent processing of the data. Our reconstruction shows larger multicentennial variability than most previous multi-proxy reconstructions, but agrees well with temperatures reconstructed from borehole measurements and with temperatures obtained with a general circulation model. According to our reconstruction, high temperatures - similar to those observed in the twentieth century before 1990- occurred around AD 1000 to 1100, and minimum temperatures that are about 0.7K below the average of 1961-90 occurred around AD 1600. This large natural variability in the past suggests an important role of natural multicentennial variability that is likely to continue. This data set consists of reconstructed Northern Hemisphere temperatures for the past 2,000 years calculated by combining low-resolution proxies with tree-ring data, using a wavelet transform technique to achieve timescale-dependent processing of the data. All data are given as temperature anomalies (K) from the Northern Hemisphere annual mean temperature 1961-90 average. Lack of data are indicated with -9.9999
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Moberg, A., D.M. Sonechkin, K. Holmgren, N.M. Datsenko and W. Karlen. 2005. Highly variable Northern Hemisphere temperatures reconstructed from low- and high-resolution proxy data. Nature, Vol. 433, No. 7026, pp. 613-617, 10 February 2005.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 00010101
Ending_Date: 19791231
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: 90.0
South_Bounding_Coordinate: 0.0
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 > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > AIR TEMPERATURE
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > TEMPERATURE ANOMALIES
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > LAND RECORDS > TREE RINGS
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > OCEAN/LAKE RECORDS > STRATIGRAPHIC SEQUENCE
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > PALEOCLIMATE RECONSTRUCTIONS > AIR TEMPERATURE RECONSTRUCTION
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > LAND RECORDS > BOREHOLES
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > OCEAN/LAKE RECORDS > BOREHOLES
Theme_Keyword: PAGES > PAST GLOBAL CHANGES, IGBP
Theme_Keyword: Temperature Reconstruction
Theme_Keyword: Climate Variability
Theme_Keyword: Multicentennial Variability
Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Theme_Keyword: GEOSCIENTIFIC INFORMATION
Theme_Keyword: OCEANS
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: GEOGRAPHIC REGION > NORTHERN HEMISPHERE
Temporal:
Temporal_Keyword_Thesaurus: GCMD
Temporal_Keyword: Decadal
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: ANDERS MOBERG
Contact_Person_Primary:
Contact_Person: DIMITY M. SONECHKIN
Contact_Person_Primary:
Contact_Person: KARIN HOLMGREN
Contact_Person_Primary:
Contact_Person: NINA M. DATENSKO
Contact_Person_Primary:
Contact_Person: WIBJORN KARLEN
Contact_Position: INVESTIGATOR
Contact_Position: INVESTIGATOR
Contact_Position: INVESTIGATOR
Contact_Position: INVESTIGATOR
Contact_Position: INVESTIGATOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Department of Meteorology
Address: Stockholm University
City: Stockholm
Postal_Code: SE-106 91
Country: Sweden
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Dynamical-Stochastical Laboratory
Address: Hydrometeorological Research Centre of Russia
Address: Bolshoy Predtechensky Lane 11/13
City: Moscow
Postal_Code: 123 242
Country: Russia
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Department of Physical Geography and Quaternary Geology
Address: Stockholm University
City: Stockholm
Postal_Code: SE-106 91
Country: Sweden
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Dynamical-Stochastical Laboratory
Address: Hydrometeorological Research Centre of Russia
Address: Bolshoy Predtechensky Lane 11/13
City: Moscow
Postal_Code: 123 242
Country: Russia
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Department of Physical Geography and Quaternary Geology
Address: Stockholm University
City: Stockholm
Postal_Code: SE-106 91
Country: Sweden
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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_2005-019
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ascii
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/contributio...
Access_Instructions:
Access to data and documentation
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.ncdc.noaa.gov/paleo/pubs/moberg2005/mob...
Access_Instructions:
Documentation on Highly variable Northern Hemisphere temperatures reconstructed from low- and high-resolution proxy data
Fees: None
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Metadata_Reference_Information:
Metadata_Date: 20050307
Metadata_Review_Date: 20160127
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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