Development of Metadata for Archived Hydrographic Surveys NEW TASK

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Development of Metadata for Archived
Hydrographic SurveysNEW TASK

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Builds on Previous CDMP Work

• 11,000 hydrographic survey sheets previously
  scanned
• 10,000 descriptive reports scanned
• From mid-1800s to present

PROBLEM TO SOLVE Metadata is inadequate!!
Need to capture metadata from descriptive
reports and deliver in user-friendly format to
public.
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Metadata extraction for 10,000 surveys
Metadata is derived from scanned Descriptive
Reports available via the Web from NGDC
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Metadata Fields to be Derived from Descriptive
Reports

• Approval Date Tide Station
• Begin Date Platform
• Bottom Samples Junction Surveys
• Data Processing Project Number
• End Date Vertical Datum
• Chief of Party Scale
• Field Unit Sound Correctors
• Horizontal Datum State
• Horizontal Coordinate System Sub Locality

Enter into spreadsheet (excel?) or method
determined by contractor to ease data entry
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Hydrographic Survey Metadata Database (HSMDB)
Available from NGDC
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Bathymetric Database Header
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GeoSpatial One-Stop xml File
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Data Resides in HSMDB
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IMPORTANCE

• Temporal studies for
• Shoreline erosion
• Bathymetric changes
• Coastal urban development
• Vegetation (prior to 1900)
• Litigation and Research concerning
• Maritime boundaries
• Wreck, obstructions, shoals