Ensemble Kalman Fitting Paleo-Reanalysis Version 2.0 (EKF400_v2.0)

Abstract:
EKF400 version 2 is a monthly resolved paleo-reanalysis covering the period 1603 to 2003. Early instrumental temperature, surface pressure and precipitation (new in version 2) observations, temperature indices derived from historical documents and temperature and moisture sensitive tree-ring measurements (largely increased number in version 2) were assimilated into an atmospheric general circulation model ensemble using a Kalman filtering technique. This data set combines the advantage of traditional reconstruction methods of being as close as possible to observations with the advantage of climate models of being physically consistent and having 3-dimensional information about the global state of the atmosphere at 2x2 degree resolution for various variables and at all points in time. While version 1 was using time-dependent covariances from the 30-member ensemble, version 2 uses a blended covariance matrix. It consists of 50% time-dependent and 50% climatological covariances. This leads to a better covariance estimation, not only between various locations in space but in between various variables, too.

Download plain xml file

To get the data: go to WIS-Portal

Metadata Information

General

General information section
AttributeValue
fileIdentifier/identifierde.dkrz.wdcc.iso3879249
language
characterSet
hierarchyLevelseries
hierarchyLevelName
  • EKF400_v2.0
contactsee section contact (role: pointOfContact)
dateStamp 2020-10-22T10:39:01
metadataStandardNameISO 19115
metadataStandardVersionISO 19139 / DKRZ ISO Simple Profile V1.0
referenceSystemInfo
metadataExtensionInfo

identificationInfo

Identification information section
AttributeValue
citation
  • title:
    • Ensemble Kalman Fitting Paleo-Reanalysis Version 2.0 (EKF400_v2.0)
  • dates:
    • creation: 2020-06-23
  • fileIdentifier:
  • citedResponsibleParty:
    • see section contact (role: distributor)
  • presentationForm:
  • otherCitationDetails:
    • doi:10.26050/WDCC/EKF400_v2.0
abstract see above
status
purpose
pointOfContactsee section contact (role: originator)
graphicOverview
resourceMaintenance
  • maintenanceAndUpdateFrequency:
  • updateScope:
  • maintenanceNote:
descriptiveKeywords:
  • theme:
    • data assimilation
  • theme:
    • tree ring proxy data
resourceConstraints
  • MD_Constraints:
    • useLimitation:
  • MD_LegalConstraints:
    • accessConstraints:
    • useConstraints:
    • otherConstraints:
languageeng
characterSet
topicCategory
extentboundingExtent
  • description:
  • geographicElement:
    • westBoundLongitude:
    • eastBoundLongitude:
    • southBoundLatitude:
    • northBoundLatitude:
  • temporalElement:
    • beginPosition:
    • endPosition: (indeterminatePosition = )

Contact

Role: pointOfContact

Contact information section
AttributeValue
individualNameDr. Jörg Franke
organisationNameInstitute of Geography and Oeschger Centre for Climate Change Research
contactInfo
  • address:


  • email:

Role: distributor

AttributeValue
individualName
organisationName
positionName
contactInfo
  • address:
    • phone:
    • email:
    • onlineResource:

    Role: originator

    Originator information section
    AttributeValue
    organisationNameInstitute of Geography and Oeschger Centre for Climate Change Research
    contactInfo
    • phone:
    • facsimile:
    • address:


    • email:
    • onlineResource:

    contentInfo

    Content information section
    AttributeValue
    CoverageDescription:
    • attributeDescription
      • air_pressure_at_sea_level
    • contentType
      • modelResult

    distributionInfo

    Distribution information section
    AttributeValue
    distributionFormat
    • name:
      • NetCDF
    • version:
      • network Common Data Format (gco:nilReason=)
    • specification:
    transferOptions (onLine)
    • linkage/ URL:
    • protocol:
    • name:
    • description:

    dataQualityInfo

    Data Quality information section
    AttributeValue
    scopeseries
    report
    • title:
    • date ():
    • explanation:
    • pass:
    lineage
    • statement:
    • processStep: