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Cooperative Station History Imaging. Jeff Arnfield Active Archive Branch National Climatic Data Center Asheville, NC. Background. Metadata critical to interpreting observations Much station metadata not in digital form Errors in digital station metadata over time

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Cooperative station history imaging l.jpg

Cooperative Station History Imaging

Jeff Arnfield

Active Archive Branch

National Climatic Data Center

Asheville, NC


Background l.jpg
Background

  • Metadata critical to interpreting observations

  • Much station metadata not in digital form

  • Errors in digital station metadata over time

  • Supporting documents in multiple locations

    • Combination of unique, overlapping and contradictory

  • Problem resolution requires physical access

  • Labor intensive, geographically restricted access

CDMP – Coop Station History Imaging


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Task Goals

  • Image, index and provide access to about 600,000 pages of Coop station history information

    • Integrate multiple document repositories

    • Retain “locational significance”

    • Image documents

    • Inventory and index documents

    • Permit authorized researchers to search for and view documents

  • Permit NCDC to enhance digital database

  • Provide images and indices to NCDC archive

CDMP – Coop Station History Imaging


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Meeting the Challenges

  • Integration of documents from multiple sources

  • Integration task requires expertise

  • Document variety complicates indexing

  • Some groupings must be maintained

  • Poor quality originals complicate imaging

  • NCDC required access to documents during the process

CDMP – Coop Station History Imaging


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Indexing

  • Folder Level

    • State

    • Station name

    • Coop Station Id

  • Document level

  • State

  • Station Name

  • Coop Station Id

  • Call Sign

  • Form Type

  • Rendition/Supplement Letter

  • Error Flag

  • Effective Date

  • Image Count

CDMP – Coop Station History Imaging


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Task Roadmap

  • On-site discovery

  • On-site integration

  • On-site inventory

  • Batching and shipping

  • Imaging

  • Indexing

  • Quality control

  • Posting for access

  • NCDC: Image and index quality assurance

  • NCDC: Follow-up quality control

CDMP – Coop Station History Imaging


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Project Timeline

CDMP – Coop Station History Imaging


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Current Status

CDMP – Coop Station History Imaging


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Along the way….

  • Initial on-site discovery process critical

    • Complexity of document organization required hands-on evaluation

    • Contractor could refine task scope and develop better procedures

  • Alter plan, complete detailed inventory in WV

    • Take advantage of trained, experienced resources

    • Faster and less expensive completion

  • Communication to resolve ambiguities

  • Detailed status reporting

CDMP – Coop Station History Imaging


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Steps to completion

  • Majority of documents will be loaded to WSSRD by end of November 2001

  • NCDC preparing to ship “stragglers”

  • Stragglers completed by end of February 2001

CDMP – Coop Station History Imaging


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Followup Projects

  • NCDC: Integration of inventory and index data with NCDC digital station history database

  • NCDC: Resolution of outstanding issues from imaged documents

  • CDMP FY2002: Imaging of Non-Cooperative Surface Weather Observing Station History Documents

    • Pending approval

CDMP – Coop Station History Imaging


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