OCS Catalog Hierarchy

OCS Metadata Library
- enc_direct
  - dredged area
  - ship_fways_lanes_zones_us_waters
    - Shipping Fairways Lanes and Zones
- ocs
  - ocs
    - AWOIS
      - AREA
      - CARTCODE
      - CHART
      - DEPTH
      - GPQUALITY
      - GPSOURCE
      - HISTORY
      - LAT83 and LON83
      - LATDEC and LONGDEC
      - NATIVDATUM
      - RECRD
      - REFERENCE
      - SNDINGCODE
      - SYSTEMNUM
      - VESSLTERMS
      - YEARSUNK
    - MB_ParentDataset
      - Maritime Limits and Boundaries
    - RNCs
    - avpg
    - chart_pod
    - chart_tile_service
    - coastpilot_meta_all_bks
    - enc_coastal_maint_chnls
      - CoastalMaintainedChannels
    - enc_direct
    - enc_metadata_2007
    - historical_chart
    - hydro_parent
    - seamless_RNC
    - seasketch
    - vdatum
    - wrecks_and_obstructions_database