Metadata for 2001 Chesapeake Bay SAV Coverage

These metadata describe the 2001 Submerged Aquatic Vegetation (SAV) coverage dataset that was produced at the Virginia Institute of Marine Science from aerial photography flown in 2001. It is a portion of the full SAV dataset that extends back to 1971.

Table of Contents


Identification_Information

  Identification_Information:

    Citation:
      Citation_Information:
        Originator:
          Virginia Institute of Marine Science
        Publication_Date:
          February 2003
        Title: 2001 Chesapeake Bay SAV Coverage
        Publication_Information:
          Publication_Place: Gloucester Point, Virginia
          Publisher: Virginia Institute of Marine Science
    Description:
      Abstract:
        The 2001 Chesapeake Bay SAV Coverage was mapped from 1:24,000 black
        and white aerial photography to access water quality in the Bay.
        Each area of SAV was interpeted from the rectified photography and
        classified into one of four density classes by the percentage of cover.
        The SAV beds were entered into an ArcInfo GIS coverage using
        the quality control procedures documented below.
      Purpose:
        The annual SAV aerial photographic monitoring program provides a
        comprehensive and accurate measure of change in SAV relative abundance 
        that has been used to link improving water quality to increases in bay
        living resources.
    Time_Period_of_Content:
      Time_Period_Information:
        Range_of_Dates/Times:
          Beginning_Date: 20010514
          Ending_Date: 20011019
      Currentness_Reference: Ground condition
    Status:
      Progress: Complete
      Maintenance_and_Update_Frequency: Irregular
    Spatial_Domain:
      Bounding_Coordinates:
        West_Bounding_Coordinate: -77.500
        East_Bounding_Coordinate: -75.000
        North_Bounding_Coordinate: 39.750
        South_Bounding_Coordinate: 36.500
    Keywords:
      Theme:
        Theme_Keyword_Thesaurus: None.
        Theme_Keyword: vegetative surface cover
        Theme_Keyword: SAV
        Theme_Keyword: submerged aquatic vegetation
      Place:
        Place_Keyword_Thesaurus: None
          U.S. Department of Commerce, 1977, Countries,  dependencies,
          areas of special sovereignty, and their principal administrative
          divisions (Federal Information Processing Standard 10-3):Washington, 
          D.C., National Institute of Standards and Technology.
        Place_Keyword: US
        Place_Keyword_Thesaurus:
          U.S. Department of Commerce, 1987, Codes for the identification
          of the States, the District of Columbia  and the outlying areas of
          The United States, and associated areas
          (Federal Information Processing Standard 5-2):Washington ,D. C.,
          National Institute of Standards and Technology.
        Place_Keyword: 10
        Place_Keyword: 24
        Place_Keyword: 51
        Place_Keyword_Thesaurus: U.S. Postal State Abbreviations
        Place_Keyword: VA
        Place_Keyword: MD
        Place_Keyword: DE
        Place_Keyword_Thesaurus: None
        Place_Keyword: Chesapeake Bay
        Place_Keyword: Chincoteague Bay
    Access_Constraints: None
    Use_Constraints None. 
    Point_of_Contact:
      Contact_Position: SAV Data Administrator
      Contact_Organization: Virginia Institute of Marine Science
      Contact_Address: Gloucester Point, Virginia 23062
      Contact_Phone: 804/684-7088
      Contact_email: savadmin@vims.edu
    Data_Set_Credit: SAV Mapping Lab, Virginia Institute of Marine Science

Data Quality Information


  Data_Quality_Information

    Attribute_Accuracy:
      Attribute_Accuracy_Report:
        The density attribute for all beds has been reviewed by an experienced
        photo-interpreter for correctness and consistency with analysis for
        prior years.
    Logical_Consistency_Report:
      The coverage contains full ArcInfo polygon topology.  There are
      no unlabeled polygons, no intersections, no unattached lines and
      all lines have both left and right polygons identified.
    Completeness_Report:
      The dataset contains all SAV areas that were identified from the
      areas flown.  Some areas that are presumed to contain no SAV were
      not flown.  Some small beds, particularly along narrow
      tributaries may not have been distinguishable on the aerial
      photography. Some portions of the Bay were not flown due to
      government air restrictions after the September 11th tragedy.
      These regions including Bush River, Gundpowder River, Middle
      River, Patapsco River, Magothy River, lower Chester River, Severn
      River, South River, Rhode River, Still Pond, Churn Creek, Worton
      Creek, Fairlee Creek, Swan Creek, and the middle and upper
      portions of the Potomac River, were not fully mapped for 2001.

    Positional_Accuracy:
      Horizontal_Positional_Accuracy:
        Horizontal_Positional_Accuracy_Report:
	  Horizontal positional accuracy is based upon
	  orthorectification of scanned aerial photography using USGS
	  digital orthothophoto quadrangles for horizontal control and
	  USGS 30m DEM data as vertical control. Horizontal RMSE for
	  individual flightlines was held to less than four meters.
     Lineage:
      Source_Information:
        Source_Citation: 2001 SAV Aerial photography
        Source_Scale_Denominator: 24000
        Type_of_Source_Media: 9x9 inch b&w negatives
        Source_Time_Period_of_Content:
          Time_Period_Information:
            Range_of_Dates/Times:
              Beginning_Date: 20010514
              Ending_Date: 20011019
          Source_Currentness_Reference: ground condition
        Source_Citation_Abbreviation: 2001_PHOTOS
        Source_Contribution: spatial and attribute information
      Source_Information:
        Source_Citation: 2001 SAV Orthophoto Mosaics
        Source_Scale_Denominator: 24000
        Type_of_Source_Media: discM
        Source_Time_Period_of_Content:
          Time_Period_Information:
            Range_of_Dates/Times:
              Beginning_Date: 20010514
              Ending_Date: 20011019
          Source_Currentness_Reference: ground condition
        Source_Citation_Abbreviation: 2001_MOSAICS
        Source_Contribution: spatial and attribute information
      Source_Information:
        Source_Citation:
          State boundaries adjusted to include shore areas
        Source_Scale_Denominator: none
        Type_of_Source_Media: disc
        Source_Time_Period_of_Content:
          Time_Period_Information:
            Single_Date/Time:
              Calendar_Date: 19961113
          Source_Currentness_Reference: publication date
        Source_Citation_Abbreviation: STATES
        Source_Contribution: spatial and attribute information
      Source_Information:
        Source_Citation:
          New Chesapeake Bay Program Segments adjusted to include land areas
        Source_Scale_Denominator: none
        Type_of_Source_Media: disc
        Source_Time_Period_of_Content:
          Time_Period_Information:
            Single_Date/Time:
              Calendar_Date: 19980915
          Source_Currentness_Reference: publication date
        Source_Citation_Abbreviation: CBPSEGS98
        Source_Contribution: spatial and attribute information
      Process_Step:
        Process_Description:
	  Scanned aerial photographs were georectified and
	  orthographically corrected to produce a seamless series of
	  aerial mosaics following a set of standard operating
	  procedures (SOP). ERDAS Orthobase image processing software
	  was used to orthographically correct the individual flight
	  lines using a bundle block solution. Camera lens calibration
	  data was matched to the image location of fiducial points to
	  define the interior camera model. Control points from USGS
	  DOQQ images provide the exterior control, which is enhanced
	  by a large number of image-matching tie points produced
	  automatically by the software. The exterior and interior
	  models were combined with a 30-meter resolution digital
	  elevation model (DEM) from the USGS National Elevation
	  Dataset (NED) to produce an orthophoto for each aerial
	  photograph.  
	  The orthophotographs that cover each USGS 7.5 minute
	  quadrangle area were adjusted to approximately uniform
	  brightness and contrast and were mosaiced together using the
	  ERDAS Imagine mosaic tool to produce a one-meter resolution
	  quad-sized mosaic.
        Source_Used_Citation_Abbreviation: 2001_PHOTOS, 2001_MOSAICS
        Process_Date: 20021106.
      Process_Step:
	Process_Description:
	  The SAV beds were interpreted on-screen from the orthophoto
	  mosaics using ESRI ArcInfo GIS software. The identification
	  and delineation of SAV beds by photo interpretation utilized
	  all available information including:  knowledge of aquatic
	  grass signatures on film, distribution of SAV in 2001 from
	  aerial photography, 2001 ground survey information, and
	  aerial site surveys.
	  SAV beds were identified and field checked with the
	  collaboration of Stan Kollar for the head of the Bay region,
	  including Susquehanna Flats; and with Virginia Carter, Nancy
	  Rybicki, Henry Ruhl, and Alfonso Lombana for the Potomac
	  River. Delineation of the large bed on the Havre de Grace
	  map was facilitated by both aerial photography and ground
	  observations.
	  In addition to delineating SAV bed boundaries, an estimate of
	  SAV density within each bed was made by visually comparing
	  each bed to an enlarged crown density scale similar to those
	  developed for estimating crown cover of forest trees from
	  aerial photography. Bed density was categorized into one of
	  four classes based on a subjective comparison with the
	  density scale. These were: 1, very sparse (<10% coverage); 2,
	  sparse (10-40%); 3, moderate (40-70%); or 4, dense (70-100%).
	  Either the entire bed or subsections within the bed were
	  assigned a bed density number (1 to 4) corresponding to the
	  above density classes. Some beds were subsectioned to
	  delineate variations of SAV density. Additionally, each
	  distinct SAV bed or bed subsection was assigned an
	  identifying one or two letter designation unique to its map.
	  Subsections were further identified as contiguous beds by
	  addition of one or two letters unique to that sequence.
	  Contiguous bed identifications aided tracking and analysis of
	  single natural bed units subsectioned due to variations of
	  SAV density.  Coupled with the appropriate SAV map number and
	  year of photography, these letter designations uniquely
	  identify each SAV bed in the database.
	  After all quadrangles were digitized, the resulting digital
	  data was combined to form a single data set for the entire
	  Bay. The quadrangle borders were then checked and edited
	  (edgematched) to ensure that the SAV polygons were
	  consistent. Inconsistencies were resolved by checking the
	  mylar maps and re-interpreting the photography if necessary.

        Source_Used_Citation_Abbreviation: 2001_MOSAICS, 2001_PHOTOS
        Process_Date: 20021216
      Process_Step:
        Process_Description:
 	  The bay segments were overlayed on the dataset by VIMS staff,
	  dividing any beds that fell into multiple segments.
        Source_Used_Citation_Abbreviation: CBPSEGS
        Process_Date: 20021216
      Process_Step:
        Process_Description:
 	  The state boundaries were overlayed on the dataset by VIMS staff,
	  dividing any beds that fell into multiple states.
        Source_Used_Citation_Abbreviation: STATES
        Process_Date: 20021216

Spatial Data Organization Information

  Spatial_Data_Organization_Information:

    Direct_Spatial_Reference_Method: Vector

Spatial Reference Information

  Spatial_Reference_Information:

    Horizontal_Coordinate_System_Definition:
      Planar:
        Grid_Coordinate_System:
          Grid_Coordinate_System_Name: Universal Transverse Mercator
          Universal_Transverse_Mercator:
            UTM_Zone_Number: 18
            Transverse_Mercator:
              Scale_Factor_at_Central_Meridian: 0.9996
              Longitude_of_Central_Meridian: 75 W
              Latitude_of_Projection_Origin: 0.0
              False_Easting: 500000
              False_Northing: 0.0
        Planar_Coordinate_Information:
          Planar_Coordinate_Encoding_Method: coordinate pair
          Coordinate_Representation:
            Abscissa_Resolution: 0.875
            Ordinate_Resolution: 0.875
          Planar_Distance_Units: meters
      Geodetic_Model:
        Horizontal_Datum_Name: North American Datum 1983
        Ellipsoid_Name: GRS 1980
        Semi-major_Axis: 6378137
        Denominator_of_Flattening_Ratio: 298.257

Entity and Attribute Information

  Entity_and_Attribute_Information:

    Overview_Description:
      Entity_and_Attribute_Overview:
        The SAV polygon attributes are used to identify each SAV bed or portion 
        of an SAV bed, classify it by density and assign into a geographic or 
        political region.
    Detailed_Description:
      Entity_Type:
        Entity_Type_Label: SAV bed
        Entity_Type_Definition: A GT-polygon representing a portion of an SAV 
          bed or an area completely surrounded by SAV that does not contain SAV.
        Entity_Type_Definition_Source: 2001_MAPS
      Attribute:
        Attribute_Label: Area
        Attribute_Definition: Area of the GT-polygon
        Attribute_Definition_Source:  ArcInfo calculation
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 0
            Range_Domain_Maximum: 999999999.999
        Attribute_Units_of_Measurement: Meters
        Attribute_Measurement_Resolution: 0.001
      Attribute:
        Attribute_Label: Perimeter
        Attribute_Definition: Perimeter of the GT-polygon
        Attribute_Definition_Source:  ArcInfo calculation
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 0
            Range_Domain_Maximum: 999999999.999
        Attribute_Units_of_Measurement: Meters
        Attribute_Measurement_Resolution: 0.001
      Attribute:
        Attribute_Label: Beds99#
        Attribute_Definition: Internal GT-polygon number
        Attribute_Definition_Source:  ArcInfo calculation
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 0
            Range_Domain_Maximum: 99999
        Attribute_Measurement_Resolution: 1
      Attribute:
        Attribute_Label: Beds99-id
        Attribute_Definition: User GT-polygon number
        Attribute_Definition_Source:  ArcInfo calculation
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 0
            Range_Domain_Maximum: 99999
        Attribute_Measurement_Resolution: 1
      Attribute:
        Attribute_Label: BedID
        Attribute_Definition: Two-letter SAV bed identifier.  
        Attribute_Definition_Source:  2001_MAPS
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: AA
            Range_Domain_Maximum: ZZ
     Attribute:
        Attribute_Label: Density
	Attribute_Definition: SAV bed density classification. A ZERO
	  VALUE IN THIS FIELD SIGNIFIES A LAND AREA OR ANY OTHER
	  NON-SAV AREA THAT IS COMPLETELY SURROUNDED BY SAV.  THESE
	  POLYGONS SHOULD BE EXCLUDED FROM SAV AREA COMPUTATIONS.
        Attribute_Definition_Source:  2001_MAPS
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_value: 0
            Enumerated_Domain_Definition: No SAV
            Enumerated_Domain_value: 1
            Enumerated_Domain_Definition: 0 - 10% cover (very sparse)
            Enumerated_Domain_value: 2
            Enumerated_Domain_Definition: 10 - 40% cover (sparse)
            Enumerated_Domain_value: 3
            Enumerated_Domain_Definition: 40 - 70% cover (moderate)
            Enumerated_Domain_value: 4
            Enumerated_Domain_Definition: 70 - 100% cover (dense)
      Attribute:
        Attribute_Label: ContigBed
        Attribute_Definition: Two-letter identifier for a larger, multiple-
          density bed of which this is a portion.
        Attribute_Definition_Source:  2001_MAPS
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: AA
            Range_Domain_Maximum: ZZ
      Attribute:
        Attribute_Label: QuadID
        Attribute_Definition: Identification number of USGS quads that contains 
          the SAV bed
        Attribute_Definition_Source:  2001 Distribution of SAV in the
          Chesapeake Bay, Final Report to U.S. EPA, Chesapeake Bay Program.
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_value: 1
            Enumerated_Domain_Definition: Conowingo Dam, MD.-PA.
            Enumerated_Domain_value: 2
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            Enumerated_Domain_value: 4
            Enumerated_Domain_Definition: North East, MD.
            Enumerated_Domain_value: 5
            Enumerated_Domain_Definition: Elkton, MD.-DEL.
            Enumerated_Domain_value: 6
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            Enumerated_Domain_value: 7
            Enumerated_Domain_Definition: Edgewood, MD.
            Enumerated_Domain_value: 8
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            Enumerated_Domain_value: 9
            Enumerated_Domain_Definition: Spesutie, MD.
            Enumerated_Domain_value: 10
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            Enumerated_Domain_Definition: Mount Landing, VA.
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            Enumerated_Domain_Definition: Tappahannock, VA.
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            Enumerated_Domain_Definition: Fleets Bay, VA.
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            Enumerated_Domain_Definition: Nandua Creek, VA.
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            Enumerated_Domain_Definition: West Point, VA.
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            Enumerated_Domain_Definition: Saluda, VA.
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            Enumerated_Domain_value: 123
            Enumerated_Domain_Definition: Mathews, VA.
            Enumerated_Domain_value: 124
            Enumerated_Domain_Definition: Franktown, VA.
            Enumerated_Domain_value: 125
            Enumerated_Domain_Definition: Westover, VA.
            Enumerated_Domain_value: 126
            Enumerated_Domain_Definition: Charles City, VA.
            Enumerated_Domain_value: 127
            Enumerated_Domain_Definition: Brandon, VA.
            Enumerated_Domain_value: 128
            Enumerated_Domain_Definition: Norge, VA.
            Enumerated_Domain_value: 129
            Enumerated_Domain_Definition: Williamsburg, VA.
            Enumerated_Domain_value: 130
            Enumerated_Domain_Definition: Clay Bank, VA.
            Enumerated_Domain_value: 131
            Enumerated_Domain_Definition: Achilles, VA.
            Enumerated_Domain_value: 132
            Enumerated_Domain_Definition: New Point Comfort, VA.
            Enumerated_Domain_value: 133
            Enumerated_Domain_Definition: Cape Charles, VA.
            Enumerated_Domain_value: 134
            Enumerated_Domain_Definition: Cheriton, VA.
            Enumerated_Domain_value: 135
            Enumerated_Domain_Definition: Savedge, VA.
            Enumerated_Domain_value: 136
            Enumerated_Domain_Definition: Claremont, VA.
            Enumerated_Domain_value: 137
            Enumerated_Domain_Definition: Surry, VA.
            Enumerated_Domain_value: 138
            Enumerated_Domain_Definition: Hog Island, VA.
            Enumerated_Domain_value: 139
            Enumerated_Domain_Definition: Yorktown, VA.
            Enumerated_Domain_value: 140
            Enumerated_Domain_Definition: Poquoson West, VA.
            Enumerated_Domain_value: 141
            Enumerated_Domain_Definition: Poquoson East, VA.
            Enumerated_Domain_value: 142
            Enumerated_Domain_Definition: Elliotts Creek, VA.
            Enumerated_Domain_value: 143
            Enumerated_Domain_Definition: Townsend, VA.
            Enumerated_Domain_value: 144
            Enumerated_Domain_Definition: Bacons Castle, VA.
            Enumerated_Domain_value: 145
            Enumerated_Domain_Definition: Mulberry Island, VA.
            Enumerated_Domain_value: 146
            Enumerated_Domain_Definition: Newport News North, VA.
            Enumerated_Domain_value: 147
            Enumerated_Domain_Definition: Hampton, VA.
            Enumerated_Domain_value: 148
            Enumerated_Domain_Definition: Benns Church, VA.
            Enumerated_Domain_value: 149
            Enumerated_Domain_Definition: Newport News South, VA.
            Enumerated_Domain_value: 150
            Enumerated_Domain_Definition: Norfolk North, VA.
            Enumerated_Domain_value: 151
            Enumerated_Domain_Definition: Little Creek, VA.
            Enumerated_Domain_value: 152
            Enumerated_Domain_Definition: Cape Henry, VA.
            Enumerated_Domain_value: 153
            Enumerated_Domain_Definition: Chuckatuck, VA.
            Enumerated_Domain_value: 154
            Enumerated_Domain_Definition: Bowers Hill, VA.
            Enumerated_Domain_value: 155
            Enumerated_Domain_Definition: Norfolk South, VA.
            Enumerated_Domain_value: 156
            Enumerated_Domain_Definition: Kempsville, VA.
            Enumerated_Domain_value: 157
            Enumerated_Domain_Definition: Princess Anne, VA.
            Enumerated_Domain_value: 158
            Enumerated_Domain_Definition: Wye Mills, MD.
            Enumerated_Domain_value: 159
            Enumerated_Domain_Definition: Bristol, MD.
            Enumerated_Domain_value: 160
            Enumerated_Domain_Definition: Fowling Creek, MD.
            Enumerated_Domain_value: 161
            Enumerated_Domain_Definition: Port Tobacco, MD.
            Enumerated_Domain_value: 162
            Enumerated_Domain_Definition: Charlotte Hall, MD.
            Enumerated_Domain_value: 163
            Enumerated_Domain_Definition: Mardela Springs, MD.
            Enumerated_Domain_value: 164
            Enumerated_Domain_Definition: Wetipquin, MD.
            Enumerated_Domain_value: 165
            Enumerated_Domain_Definition: Selbyville, MD.
            Enumerated_Domain_value: 166
            Enumerated_Domain_Definition: Assawoman Bay, MD.
            Enumerated_Domain_value: 167
            Enumerated_Domain_Definition: Berlin, MD.
            Enumerated_Domain_value: 168
            Enumerated_Domain_Definition: Ocean City, MD.
            Enumerated_Domain_value: 169
            Enumerated_Domain_Definition: Public Landing, MD.
            Enumerated_Domain_value: 170
            Enumerated_Domain_Definition: Tingles Island, MD.
            Enumerated_Domain_value: 171
            Enumerated_Domain_Definition: Girdle Tree, MD.-VA.
            Enumerated_Domain_value: 172
            Enumerated_Domain_Definition: Boxiron, MD.-VA.
            Enumerated_Domain_value: 173
            Enumerated_Domain_Definition: Whittington Point, MD.-VA.
            Enumerated_Domain_value: 174
            Enumerated_Domain_Definition: Chincoteague West, VA.
            Enumerated_Domain_value: 175
            Enumerated_Domain_Definition: Chincoteague East, VA.
            Enumerated_Domain_value: 176
            Enumerated_Domain_Definition: Anacostia, D.C.-MD.
            Enumerated_Domain_value: 177
            Enumerated_Domain_Definition: East of New Point, VA.
            Enumerated_Domain_value: 178
            Enumerated_Domain_Definition: Bethel Beach, VA.
            Enumerated_Domain_value: 179
            Enumerated_Domain_Definition: Goose Island, VA.
            Enumerated_Domain_value: 180
            Enumerated_Domain_Definition: Horseshoe Point, MD.
            Enumerated_Domain_value: 181
            Enumerated_Domain_Definition: Bowie, MD.
            Enumerated_Domain_value: 182
            Enumerated_Domain_Definition: Smith Point, VA.-MD.
            Enumerated_Domain_value: 183
            Enumerated_Domain_Definition: East of Reedville, VA.
            Enumerated_Domain_value: 184
            Enumerated_Domain_Definition: Cobb Island, VA.
            Enumerated_Domain_value: 185
            Enumerated_Domain_Definition: Suffolk, VA.
            Enumerated_Domain_value: 186
            Enumerated_Domain_Definition: Fisherman's Island, VA.
            Enumerated_Domain_value: 187
            Enumerated_Domain_Definition: Exmore, VA.
            Enumerated_Domain_value: 188
            Enumerated_Domain_Definition: Kingston, MD.
            Enumerated_Domain_value: 189
            Enumerated_Domain_Definition: Eden, MD.
            Enumerated_Domain_value: 190
            Enumerated_Domain_Definition: Rhodesdale, MD.
            Enumerated_Domain_value: 191
            Enumerated_Domain_Definition: Sharptown, MD.
            Enumerated_Domain_value: 192
            Enumerated_Domain_Definition: Hobbs, MD.
            Enumerated_Domain_value: 193
            Enumerated_Domain_Definition: Church Hill, MD.
            Enumerated_Domain_value: 194
            Enumerated_Domain_Definition: Lancaster, VA.
            Enumerated_Domain_value: 195
            Enumerated_Domain_Definition: Gloucester, VA.
            Enumerated_Domain_value: 196
            Enumerated_Domain_Definition: Princess Anne, MD.
            Enumerated_Domain_value: 197
            Enumerated_Domain_Definition: Haynesville, VA.
            Enumerated_Domain_value: 198
            Enumerated_Domain_Definition: Hallwood, VA. - MD.
            Enumerated_Domain_value: 199
            Enumerated_Domain_Definition: Millington, MD.
            Enumerated_Domain_value: 200
            Enumerated_Domain_Definition: Rollins Fork, VA.
            Enumerated_Domain_value: 201
            Enumerated_Domain_Definition: Loretto, VA.
            Enumerated_Domain_value: 202
            Enumerated_Domain_Definition: Pocomoke City, MD. -  VA.
            Enumerated_Domain_value: 203
            Enumerated_Domain_Definition: Diputanta North, VA.
            Enumerated_Domain_value: 204
            Enumerated_Domain_Definition: Hopewell, VA.
            Enumerated_Domain_value: 205
            Enumerated_Domain_Definition: Chester, VA.
            Enumerated_Domain_value: 206
            Enumerated_Domain_Definition: Drewrys Bluff, VA.
            Enumerated_Domain_value: 207
            Enumerated_Domain_Definition: Dutch Gap, VA.
            Enumerated_Domain_value: 208
            Enumerated_Domain_Definition: Roxbury, VA.
            Enumerated_Domain_value: 209
            Enumerated_Domain_Definition: Providence Forge, VA.
            Enumerated_Domain_value: 210
            Enumerated_Domain_Definition: Walkers, VA.
            Enumerated_Domain_value: 211
            Enumerated_Domain_Definition: Richmond, VA.
            Enumerated_Domain_value: 212
            Enumerated_Domain_Definition: Ship Shoal Inlet, VA.
            Enumerated_Domain_value: 213
            Enumerated_Domain_Definition: Great Machipongo Inlet, VA.
            Enumerated_Domain_value: 214
            Enumerated_Domain_Definition: Nassawadox, VA.
            Enumerated_Domain_value: 215
            Enumerated_Domain_Definition: Quinbly Inlet, VA.
            Enumerated_Domain_value: 216
            Enumerated_Domain_Definition: Wachapreague, VA.
            Enumerated_Domain_value: 217
            Enumerated_Domain_Definition: Accomax, VA.
            Enumerated_Domain_value: 218
            Enumerated_Domain_Definition: Metompkin Inlet, VA.
            Enumerated_Domain_value: 219
            Enumerated_Domain_Definition: Bloxom, VA.
            Enumerated_Domain_value: 220
            Enumerated_Domain_Definition: Wallops Island, VA.
            Enumerated_Domain_value: 221
            Enumerated_Domain_Definition: Deep Creek, VA.
            Enumerated_Domain_value: 222
            Enumerated_Domain_Definition: Fentress, VA.
            Enumerated_Domain_value: 223
            Enumerated_Domain_Definition: Pleasant Ridge, VA.
            Enumerated_Domain_value: 224
            Enumerated_Domain_Definition: Creeds, VA.
            Enumerated_Domain_value: 225
            Enumerated_Domain_Definition: King William, VA.
            Enumerated_Domain_value: 226
            Enumerated_Domain_Definition: King & Queen Courthouse, VA.
            Enumerated_Domain_value: 227
            Enumerated_Domain_Definition: Truhart, VA.
            Enumerated_Domain_value: 228
            Enumerated_Domain_Definition: Tunstall, VA.
            Enumerated_Domain_value: 229
            Enumerated_Domain_Definition: New Kent, VA.
            Enumerated_Domain_value: 230
            Enumerated_Domain_Definition: Manquin, VA.
            Enumerated_Domain_value: 231
            Enumerated_Domain_Definition: Port Royal, VA.
      Attribute:
        Attribute_Label: CBPSEG
        Attribute_Definition: Chesapeake Bay Program segment which contains 
          the SAV bed
        Attribute_Definition_Source:  CBPSEGS98
        Attribute_Domain_Values:
          Codeset_Domain:
            Codeset_Name: Chesapeake Bay Program Segment abbreviations ("CHIPH"
              has been added to identify Chincoteague Bay)
            Codeset_Source: Chesapeake Bay Program
      Attribute:
        Attribute_Label: STATE
        Attribute_Definition: U.S. State which contains the SAV bed
          (currently blank)
      Attribute:
        Attribute_Label: County
        Attribute_Definition: County which contains the SAV bed
          (currently blank)
      Attribute:
        Attribute_Label: Zone
        Attribute_Definition: Bay zone which contains the the SAV bed
        Attribute_Definition_Source:  CBPSEGS98
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_value: 1
	    Enumerated_Domain_Definition: CB1TF, NORTF, ELKOH, C&DOH,
	      BOHOH, SASOH, CB2OH, CB3MH, BSHOH, GUNOH, MIDOH, BACOH,
	      PATMH, CHSMH, CHSOH, CHSTF, MAGMH (Upper Bay)
            Enumerated_Domain_value: 2
	    Enumerated_Domain_Definition: SEVMH, SOUMH, RHDMH, WSTMH,
	      EASMH, CB4MH, CHOMH1, CHOMH2, CHOOH, CHOTF, LCHMH, PAXMH,
	      PAXOH, PAXTF, HNGMH, FSBMH, NANMH, NANOH, NANTF, WICMH,
	      MANMH, BIGMH, POCMH, POCOH, POCTF, TANMH, POTMH, POTOH,
	      POTTF, MATTF, PISTF, CB5MH (Middle Bay)
            Enumerated_Domain_value: 3
 	   Enumerated_Domain_Definition: RPPMH, CRRMH, RPPOH, RPPTF,
	     PIAMH, CB6PH, CB7PH, MOBPH, YRKMH, YRKPH, MPNOH, MPNTF,
	     PMKOH, PMKTF, JMSPH, ELIPH, SBEMH, JMSMH, JMSOH, CHKOH,
	     JMSTF, APPTF, LYNPH, CB8PH (Lower Bay)
           Enumerated_Domain_value: 4
           Enumerated_Domain_Definition: AAWPH, CHNPH, IOWPH, SPXPH, 
             SVCPH (Delmarva Peninsula Coastal Bays)
      Attribute:
        Attribute_Label: Surveyed
        Attribute_Definition: Indicates whether the polygon was covered by the
          annual survey.
          Enumerated_Domain:
            Enumerated_Domain_value: T
            Enumerated_Domain_Definition: Included in the area surveyed
            Enumerated_Domain_value: F
            Enumerated_Domain_Definition: Not included in the area surveyed
            Enumerated_Domain_value: P
            Enumerated_Domain_Definition: Area was mapped at less than 
              maximum biomass

Distribution Information

  Distribution_Information:

    Distributor:
      Contact_Information:
        Contact_Organization_Primary:
          Contact_Organization: Virginia Institute of Marine Science
        Contact_Position: SAV Data Administrator
        Contact_Address: Gloucester Point, Virginia 23062
        Contact_Phone: 804/684-7088
        Contact_Email: savadmin@vims.edu
    Resource_Description: 2001 Chesapeake Bay SAV Coverage
    Standard_Order_Process:
      Digital_Form:
        Digital_Transfer_Information:
          Format_Name: ARCE
          Format_Version_Number: 8.0
          Format_Specification: Coverage
        Digital_Transfer_Option:
          Offline_Option:
            Offline_Media: CD-R
            Recording_Format:
              ASCII
          Online_Option:
            Access_Instructions:
              Network_Address:
                Network_Resource_Name:
                   (unix tar.Z format)
                   URL ftp://ftp.vims.edu/pub/data/sav/beds01.tar.Z
                   (pkzip format)
                   URL ftp://ftp.vims.edu/pub/data/sav/beds01.zip
    

Metadata Reference Information

  Metadata_Reference_Information:

    Metadata_Date: 20030206
    Metadata_Contact:
      Contact_Information:
        Contact_Organization_Primary:
          Contact_Organization: Virginia Institute of Marine Science
        Contact_Position: SAV Data Administrator
        Contact_Address: Gloucester Point, Virginia 23062
        Contact_Phone: 804/684-7088
        Contact_Email: savadmin@vims.edu

VIMS SAV Mapping Lab
Last modified 2/10/03.
Please send us your comments.