Metadata:
  Identification_Information:
    Citation:
      Citation_Information:
        Originator: Geological Survey of Alabama
        Publication_Date: 1997
        Title: Partial National Wetland Inventory Coverage for Mobile and Baldwin counties  
        Edition: 1.0 
        Geospatial_Data_Presentation_Form: map
        Series_Information:
          Series_Name: GSA Digital Geospatial Data Series
          Issue_Identification: 
        Publication_Information:
          Publication_Place: Tuscaloosa, Alabama
          Publisher: Geological Survey of Alabama
        Online_Linkage: none 
  
    Description:
      Abstract:
        NWI digital data files are records of wetlands location and classification as 
        defined by the U.S. Fish & Wildlife Service.  This dataset is s compilation of a series
        available in 7.5 minute by 7.5 minute blocks containing ground planimetric 
        coordinates of wetlands point, line, and area features and wetlands attributes.  
        The hardcopy maps that were used as the source for the digital data were produced 
        distributed by the U.S. Fish & Wildlife Service's National Wetlands Inventory
        project.
  
      Purpose:
         The data provide consultants, planners, and resource managers with information 
         on wetland location and type. For use in GIS and other applications.
         The data have been modified by GSA in support of the 
      "Comprehensive GIS Coastal Inventory" as funded by NOAA through 
      ADCNR as part of the Coastal Impact Assistance Program. 

  
    
    Time_Period_of_Content:
      Time_Period_Information:
        Single_Date/Time:
          Calendar_Date: 1979
      Currentness_Reference: source photography date
  
    Status:
      Progress: Complete 
      Maintenance_and_Update_Frequency: Irregular 
  
    Spatial_Domain:
      Bounding_Coordinates:
        West_Bounding_Coordinate: -88.500025
        East_Bounding_Coordinate: -87.374984
        North_Bounding_Coordinate: 31.375016
        South_Bounding_Coordinate: 30.374979
  
    Keywords:
      Theme:
        Theme_Keyword_Thesaurus: none
        Theme_Keyword: wetlands
        Theme_Keyword: hydrologic
        Theme_Keyword: land cover
        Theme_Keyword: surface and manmade features

         
         
         
      Place:
        Place_Keyword_Thesaurus: none
        Place_Keyword: Mobile
        Place_Keyword: Baldwin 
  
    Access_Constraints: None 
  
    Use_Constraints:
      Reproduction or redistribution of digital data sets
      or products derived therefrom outside of licensees'
      organization or entity is expressly forbidden.  The only
      exception is redistribution to consultants working for the
      licensee, and then only for purposes, related to work for the
      licensee.  Such consultants may not further reproduce or
      redistribute these data sets.  None of these data shall be
      electronically duplicated on magnetic or optical media for
      use by others, in whole or in part, without permission of the
      Geological Survey of Alabama.
  
      Any hardcopies utilizing these data sets shall clearly indicate
      their source.  If the licensee has modified the data in any way
      they are obligated to describe the types of modifications they
      have performed on the hardcopy map.  Licensee specifically agrees
      not to misrepresent these data sets, nor to imply that changes they
      made were approved by Geological Survey of Alabama.

      Federal, State, and local regulatory agencies with jurisdiction over 
      wetlands may define and describe wetlands in a different manner than that 
      used in this inventory. There is no attempt, in either the design or 
      products of this inventory, to define the limits of proprietary jurisdiction 
      of any Federal, State, or local government or to establish the geographical 
      scope of the regulatory programs of government agencies.  Persons intending 
      to engage in activities involving modifications within or adjacent to 
      wetland areas should seek the advice of appropriate Federal, State, 
      or local agencies concerning specified agency regulatory programs and 
      proprietary jurisdictions that may affect such activities.
  
    Point_of_Contact:
      Contact_Information:
        Contact_Person_Primary:
          Contact_Person: Nick Tew
          Contact_Organization:  Geological Survey of Alabama
        Contact_Position: Manager, GIS Section
        Contact_Address:
          Address_Type:  mailing address
          Address: P.O. Box O
          City: Tuscaloosa
          State_or_Province: Alabama
          Postal_Code: 35486-9780
          Country: USA
        Contact_Voice_Telephone:  (205) 349-2852
        Contact_Facsimile_Telephone:  (205) 349-2861
        Contact_Electronic_Mail_Address:  ntew@sand.gsa.tuscaloosa.al.us
  
    Data_Set_Credit: 
       This work done with the funding and cooperation of the U.S. Environmental
       Protection Agency and the Dauphin Island Sea Lab Marine Environmental 
       Sciences Consortium.
  
    Native_Data_Set_Environment: 
      Windows_NT, 4.0, Intel UNIX
      ARC/INFO version 7.1.1
  
  Data_Quality_Information:
    Attribute_Accuracy:
      Attribute_Accuracy_Report: 
         Accuracy is tested by manual comparison of the source with hard copy printouts 
         and/or symbolized display of the digital wetlands data on an interactive computer 
         graphic system. 
  
    Logical_Consistency_Report:
      Polygon and chain-node topology present. Polygons intersecting the neatline are closed 
      along the border.  Segments making up the outer and inner boundaries of a polygon tie 
      end-to-end to completely enclose the area.  Line segments are a set of sequentially
      numbered coordinate pairs.  No duplicate features exist nor duplicate points in a data 
      string.  Intersecting lines are separated into individual line segments at the point of 
      intersection.  Point data are represented by two sets of coordinate pairs, each with the 
      same coordinate values.  All nodes are represented by a single coordinate pair which 
      indicates the beginning or end of a line segment.  The neatline is generated by connecting 
      the four corners of the digital file, as established during initialization of the digital 
      file.  All data crossing the neatline are clipped to the neatline and data within a 
      specified tolerance of the neatline are snapped to the neatline.  Tests for logical 
      consistency are performed by vendor software.
    Completeness_Report: 
      All photo-interpretable wetlands are mapped.  In the treeless prairies, 1/4 acre 
      wetlands are mapped. In forested areas, small open water and emergent wetlands are
      mapped.  In general, the minimum mapping unit is from 1 to 3 acres depending on the 
      wetland type and the scale and emulsion of the source aerial photography.  Where 
      evergreen forested wetlands predominate, wetlands smaller than 3 acres may not be 
      mapped.  Thus, a detailed on the ground and historical analysis of a single site may 
      result in a revision of the wetland boundaries established through photographic 
      interpretation.  In addition, some small wetlands and those obscured by dense forest 
      cover may not be included in this dataset.
    Positional_Accuracy:
      Horizontal_Positional_Accuracy:
        Horizontal_Positional_Accuracy_Report: 
          Horizontal positional accuracy for the digital data is tested by visual 
          comparison of the source with hard copy plots.
  
    Lineage:
      Source_Information:
        Source_Citation:
          Citation_Information:
            Originator: Special Project 
            Publication_Date: 1979 
            Title: Special Project Photography  
            Geospatial_Data_Presentation_Form: remote-sensing image 

        Source_Scale_Denominator: 65000
        Type_of_Source_Media: color infrared aerial photograph film transparency
        Source_Time_Period_of_Content:
          Time_Period_Information:
            Single_Date/Time:
              Calendar_Date: 1979
          Source_Currentness_Reference: photo date
        Source_Citation_Abbreviation: none
        Source_Contribution: wetlands spatial and attribute information 

      Source_Information:
        Source_Citation:
          Citation_Information:
            Originator: U.S. Geological Survey 
            Publication_Date: 1982 
            Title: 
            Geospatial_Data_Presentation_Form: map

            Series_Information:
              Series_Name: 7.5-minute series (topographic)  
              Issue_Identification: 
            Publication_Information:
              Publication_Place: Reston, VA 
              Publisher: U.S. Geological Survey  

        Source_Scale_Denominator: 24000
        Type_of_Source_Media: Stable-base material
        Source_Time_Period_of_Content:
          Time_Period_Information:
            Single_Date/Time:
              Calendar_Date: 1982 
          Source_Currentness_Reference: publication date
        Source_Citation_Abbreviation: none
        Source_Contribution: base cartographic data

      Source_Information:
        Source_Citation:
          Citation_Information:
            Originator: U.S. Fish & Wildlife Service, National Wetlands Inventory 
            Publication_Date: 1983 
            Title: Chunchula 
            Geospatial_Data_Presentation_Form: map
 
            Series_Information:
              Series_Name: 
              Issue_Identification: 
            Publication_Information:
              Publication_Place: St. Petersburg, FL 
              Publisher: U.S. Fish & Wildlife Service, National Wetlands Inventory  

        Source_Scale_Denominator: 24000
        Type_of_Source_Media: stable-base material
        Source_Time_Period_of_Content:
          Time_Period_Information:
            Single_Date/Time:
              Calendar_Date: 1983
          Source_Currentness_Reference: publication date
        Source_Citation_Abbreviation: none
        Source_Contribution: wetlands location and classification
      Process_Step: 
        Process_Description:
             NWI maps are compiled through manual photointerpretation of NHAP or NAPP aerial 
             photography supplemented by Soil Surveys and field checking of wetland photo
             signatures. Delineated wetland boundaries are manually transferred from 
             interpreted photos to USGS 7.5 minute topographic quadrangle maps and then
             manually labelled. Quality control steps occur throughout the photointerpretation, 
             map compilation, and map reproduction processes.  
        Process_Date: 1983
      Process_Step: 
        Process_Description:
          Digital wetlands data were manually digitized from stable-base copies of the 
          1:24,000 scale wetlands overlays registered to the standard U.S.Geological Survey
          (USGS) 7.5 minute quadrangles into topologically correct data files using Arc/Info 
          software. Files contain ground planimetric coordinates and wetland attributes. The 
          quadrangles were referenced to the North American Datum of 1927 (NAD27) horizontal 
          datum. Manual digitizing used a digitizing table to capture the digital data at a 
          resolution of at least 0.005 inches; attribution was performed as the data were 
          digitized. The data were checked for position by comparing plots of the digital 
          data to the source material.    
        Process_Date: Digitized 1997; Merged 2002 

  Spatial_Data_Organization_Information:
    Direct_Spatial_Reference_Method:  Vector
    Point_and_Vector_Object_Information:
      SDTS_Terms_Description:
        SDTS_Point_and_Vector_Object_Type:  Point
        Point_and_Vector_Object_Count:  549
        SDTS_Point_and_Vector_Object_Type:  String
        Point_and_Vector_Object_Count:  1588
        SDTS_Point_and_Vector_Object_Type:  GT-polygon composed of chains
        Point_and_Vector_Object_Count:  550
  
  Spatial_Reference_Information:
    Horizontal_Coordinate_System_Definition:
      Geographic:
      Geographic_Coordinate_Units: Decimal degrees
      Latitude_resolution: .001
      Longitude_resolution: .001
    Geodetic_Model:
      Horizontal_Datum_Name: North American Datum of 1927
      Ellipsoid_Name: Clarke 1866
      Semi-major_Axis: 6378206.400000
      Denominator_of_Flattening_Ratio: 294.978698

  
  Entity_and_Attribute_Information:
    Overview_Description:
      Entity_and_Attribute_Overview:
             Each entity is attributed with a classification based on U.S. Fish & Wildlife's 
             NWI wetlands classification code list. The wetland classification system is 
             hierarchical, with wetlands and deepwater habitats divided among five major              
             systems at the broadest level. The five systems include Marine (open ocean and 
             associated coastline), Estuarine (salt marshes and brackish tidal water),
             Riverine (rivers, creeks, and streams), Lacustrine (lakes and deep ponds), and 
             Palustrine (shallow ponds, marshes, swamps, sloughs). Systems are further
             subdivided into subsystems which reflect hydrologic conditions. Below the 
             subsystem is the class which describes the appearance of the wetland in terms
             of vegetation or substrate.  Each class is further subdivided into subclasses; 
             vegetated subclasses are described in terms of life form and substrate subclasses 
             in terms of composition.  The classification system also includes modifiers to 
             describe hydrology (water regime), soils, water chemistry (pH, salinity), and 
             special modifiers relating to man's activities (e.g., impounded, partly drained). 
      Entity_and_Attribute_Detail_Citation: 
              Cowardin, L.M., V. Carter, F. Golet, and E. LaRoe. 1979. Classification of wetlands 
              and deepwater habitats of the United States. U.S. Fish Wildlife Service. 103 pp.
      Entity_and_Attribute_Detail_Citation:
              Photointerpretation Conventions for the National Wetlands 
              Inventory, March 1990  
  
  Distribution_Information:
    Distributor:
      Contact_Information:
        Contact_Organization_Primary:
          Contact_Organization: Geological Survey of Alabama
        Contact_Position: Nick Tew
        Contact_Address:
          Address_Type:  mailing address
          Address: P.O. Box O
          City: Tuscaloosa
          State_or_Province: Alabama
          Postal_Code: 35486-9780
          Country: USA
        Contact_Voice_Telephone:  (205) 349-2852
        Contact_Facsimile_Telephone:  (205) 349-2861
        Contact_Electronic_Mail_Address:  ntew@sand.gsa.tuscaloosa.al.us
  
    Distribution_Liability:
      Geological Survey of Alabama (GSA) provides these geographic data "as is."  
      GSA makes no guarantee or warranty
      concerning the accuracy of information contained in the geographic
      data.  GSA further makes no warranties, either expressed or implied
      as to any other matter whatsoever, including, without limitation,
      the condition of the product, or its fitness for any particular
      purpose. The burden for determining fitness for use lies entirely
      with the user.  Although these data have been processed successfully
      on computers of GSA, no warranty, expressed or implied, is made by
      GSA regarding the use of these data on any other system, nor does the
      fact of distribution constitute or imply any such warranty.
  
      In no event shall the GSA have any liability whatsoever for payment
      of any consequential, incidental, indirect, special, or tort damages
      of any kind, including, but not limited to, any loss of profits
      arising out of use of or reliance on the geographic data or arising
      out of the delivery, installation, operation, or support by GSA.
  
  Metadata_Reference_Information:
    Metadata_Date: 1997
    Metadata_Review_Date: 1997
    Metadata_Future_Review_Date: 1998
    Metadata_Contact:
      Contact_Information:
        Contact_Organization_Primary:
          Contact_Organization: Geological Survey of Alabama
          Contact_Person: Nick Tew
        Contact_Position: Manager, GIS Section
        Contact_Address:
          Address_Type:  mailing address
          Address: P.O. Box O
          City: Tuscaloosa
          State_or_Province: Alabama
          Postal_Code: 35486-9780
          Country: USA
        Contact_Voice_Telephone:  (205) 349-2852
        Contact_Facsimile_Telephone:  (205) 349-2861
        Contact_Electronic_Mail_Address:  ntew@sand.gsa.tuscaloosa.al.us
    Metadata_Standard_Name:
      FGDC Content Standards for Digital Geospatial Metadata
    Metadata_Standard_Version: Version of June 8, 1994
    Metadata_Access_Constraints: none
    Metadata_Use_Constraints: none