metadata.txt

电子地图服务器,搭建自己的地图服务

        Country: U.S.A.
      Contact_Voice_Telephone: [phone]  ext. 566
      Contact_Facsimile_Telephone: [phone]
      Contact_Electronic_Mail_Address: [e-mail]
      Hours_of_Service: 8am to 5pm
      Contact_Instructions: Preferred contact is by mail or telephone.
  Data_Set_Credit:
          Div. Environmental Management Director, Preston Howard
          Water Quality Section Chief, Steve Tedder
          Water Quality Staff, Steve Zoufaly
          NC Dept. of Environment, Health, and Natural Resources
          512 N. Salisbury Street
          Raleigh, NC 27604-1148
          NCCGIA Director, Karen Siderelis
          Database Administration, Zsolt Nagy
          Database Management, Ken Shaffer
          Project Manager, Michael D. Rink
          North Carolina Center for Geographic Information and Analysis
          Governor's Office
          Office of State Planning
          115 Hillsborough Street
          Raleigh, NC 27603
  Native_Data_Set_Environment:
          The NC DEHNR-DEM delineated the boundaries on 24k USGS
          topographic maps.  These boundaries were digitized by NCCGIA
          using ESRI's ARC/INFO version 5.0 GIS using a Calcomp
          digitizer and ARCEDIT. The present version is in ESRI's
          ARC/INFO version 7.0.3 GIS software on UNIX, Sun Sparc
          workstations.
  Cross_Reference:
    Citation_Information:
      Originator: Div. of Environmental Health, Public Water Supply Branch
      Publication_Date: 19950630
      Title: Surface Water Intakes
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: Raleigh, North Carolina
        Publisher:
                      DEHNR-Div. of Environmental Health, Public Water
                      Supply Branch
      Other_Citation_Details: Digitized by NCCGIA
      Online_Linkage:
      Larger_Work_Citation:
  Cross_Reference:
    Citation_Information:
      Originator:
                  Div. of Environmental Health, Water Quality Planning
                  Branch, USDA, Natural Resources Conservation Service
      Publication_Date: 19941130
      Title: Hydrologic Units, North Carolina
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: Raleigh, North Carolina
        Publisher: USDA, Natural Resources Conservation Service
      Other_Citation_Details: Partially digitized by NCCGIA
      Online_Linkage: http://cgia.cgia.state.nc.us/corpmeta.dir/corplayers
Data_Quality_Information:
  Attribute_Accuracy:
    Attribute_Accuracy_Report:
              The NC DEHNR-DEM delineated the boundaries on 24k USGS
              paper topographic maps.  NCCGIA digitized these boundaries
              and attributed them with DEM classification information,
              river basin and stream names, and acres per polygon.  The
              digital files were plotted and overlayed to the originals
              and linework and label corrections were made. This digital
              file is updated as changes occur.
  Logical_Consistency_Report:
          Using ESRI's ARC/INFO GIS software, the dataset was built for
          arc and polygon topology using the "build" command.
          The data set was then cleaned with a fuzzy tolerance of
          1 foot.  Topology has not been edited since the last build
          or clean.
  Completeness_Report:
          These data represent the locations and identities of Water
          Supply Watersheds in North Carolina as mapped by the NCDEM.
          Each watershed is labeled with either a protected or critical
          area classification.  All boundaries are approved by DEM
          whether they are the original DEM boundaries or changes to
          original boundaries submitted for revision by local or county
          governments.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
                  Water supply watershed boundaries were marked on 7.5
                  Minute USGS paper topographic maps which meet National
                  Map Accuracy Standards, using a best estimate with
                  reference to surrounding features. Ridge lines were
                  interpolated from contours by cartographers and reviewed
                  by DEM staff.  Counties and municipalities have
                  restudied certain boundaries in detail for adjustment by
                  DEM. Boundaries drawn were digitized and check plots used
                  to ensure correct boundary location, within a line width.
                  map units: feet, precision: single, fuzzy: 1.0,
                  dangle: 10.0
  Lineage:
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator:
                          NC DEHNR - Div. of Environmental Management, Water
                          Quality Section
          Publication_Date: 19960401
          Title: Water Supply Watersheds
          Geospatial_Data_Presentation_Form: Map
          Publication_Information:
            Publication_Place: Raleigh, North Carolina
            Publisher:
                              NC DEHNR - Div. of Environmental Management, Water
                              Quality Planning
          Other_Citation_Details: Data is updated as needed
      Source_Scale_Denominator: 24000
      Type_of_Source_Media: Paper
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 199208
            Ending_Date: 19960326
        Source_Currentness_Reference: Original release date and revision date, respectively
      Source_Citation_Abbreviation: None
      Source_Contribution:
                  Water supply watershed boundaries and
                  stream classification schedules
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: US Geological Survey
          Publication_Date: 1938-1990
          Title: USGS 7.5 Minute series quadrangles
          Geospatial_Data_Presentation_Form: Map
          Publication_Information:
            Publication_Place: Reston, Virginia
            Publisher: US Geological Survey
          Other_Citation_Details: Published map series
      Source_Scale_Denominator: 24000
      Type_of_Source_Media: Paper
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1938
            Ending_Date: 1990
        Source_Currentness_Reference:
      Source_Citation_Abbreviation: None
      Source_Contribution: Paper maps used to delineate the watersheds
    Process_Step:
      Process_Description:
                  Water supply watershed boundaries were delineated by
                  cartographers interpolating ridgelines on paper USGS 7.5
                  minute topographic maps. Boundaries were delineated around
                  known water supply intakes.  Intakes on streams or rivers
                  had critical areas delineated as ridgelines or half mile
                  buffers, whichever was closest, upstream of the intake
                  location.  Protected areas were delineated with ridgelines
                  or ten mile buffers, which ever was closer.  For intakes
                  on lakes and reservoirs, buffers were delineated from the
                  apparent pool elevation of the water body as shown on the
                  USGS quadrangle using the same limits as above. Boundaries
                  were reviewed by DEM staff.  After the linework was
                  digitized by NCCGIA (see below), DEM staff reviewed
                  the linework and attributes for accuracy. DEM supplies
                  CGIA with updates as they occur.
      Process_Date: 19960401
      Source_Produced_Citation_Abbreviation:
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Steve Zoufaly
            Contact_Organization:
                              NCDEHNR-Division of Environmental Management, Water
                              Quality Section
          Contact_Position: Environmental Supervisor
          Contact_Address:
            Address_Type: Physical and mailing
            Address: 512 N. Salisbury Street
            City: Raleigh
            State_or_Province: North Carolina
            Postal_Code: 27604-1148
            Country: U.S.A.
          Contact_Voice_Telephone: [phone]  ext.566
          Contact_Facsimile_Telephone: [phone]
          Contact_Electronic_Mail_Address: [e-mail]
          Hours_of_Service: 7:30 am to 4:30 pm
          Contact_Instructions: Phone or electronic mail
    Process_Step:
      Process_Description:
                  Water supply watersheds were digitized from hand
                  delineated water supply watershed boundaries on USGS 7.5
                  Minute series paper basemaps.  The digital files were
                  attributed and checkplots were created for review by the
                  Water Quality Section. Necessary corrections were made and
                  new plots were run. Post processing involved edgematching
                  and mapjoining of USGS 7.5 Minute series maps used to
                  create the digitized data.  This process generated one
                  statewide polygon coverage.  Boundaries of the watersheds
                  throughout the state, in an effort to have them coincident
                  with the Hydrologic Units adopted earlier by EHNR-DEM
                  and USDA-NRCS, were replaced with the hydrologic units
                  Boundaries for the watersheds.  Boundaries coincident in
                  both coverages were deleted from the watershed file and
                  copied back from the hydrologic units file.  CGIA updates
                  the digital file as needed.
      Process_Date: 19960401
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Michael D. Rink
            Contact_Organization: NCCGIA
          Contact_Position: GIS Analyst
          Contact_Address:
            Address_Type: Physical and mailing
            Address: 115 Hillsborough Street
            City: Raleigh
            State_or_Province: North Carolina
            Postal_Code: 27603
            Country: U.S.A.
          Contact_Voice_Telephone: [phone]
          Contact_Facsimile_Telephone: [phone]
          Contact_Electronic_Mail_Address: [e-mail]
          Hours_of_Service: 8:30AM - 5:30PM