Identification_Information:
  Citation:
    Citation_Information:
      Originator: Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC)
      Originator: Florida Department of Environmental Protection, Apalachicola National Estuarine Research Reserve
      Publication_Date: 20040630
      Title: Sediment grab data from October 1999 in Apalachicola Bay, Florida
      Edition: One
      Geospatial_Data_Presentation_Form: vector digital data
      Publication_Information:
        Publication_Place: Charleston, SC
        Publisher: NOAA's Ocean Service, Coastal Services Center (CSC)
      Online_Linkage: ftp://ftp.csc.noaa.gov/pub/benthic/apasedgrabs.zip
      Online_Linkage: http://www.csc.noaa.gov/benthic/data/gulf/apa.htm
      Online_Linkage: http://www.csc.noaa.gov/benthic/
      Online_Linkage: http://www.csc.noaa.gov/
  Description:
    Abstract: The Apalachicola Bay National Estuarine Research Reserve and the NOAA Coastal Services Center worked together to map benthic habitats within Apalachicola Bay, Florida. The bay and the lower portions of four distributaries were surveyed on 11-22 October 1999 using three benthic sampling techniques.  This data set represents the sediment grain size and organic content information gathered from grab sampling. Grabs were collected at 136 stations throughout the bay.
    Purpose: Grain size and percent organic content were measured from the sediment grab samples.  These data were collected to support RoxAnn acoustic data interpretation and sediment profile imagery analysis throughout the Apalachicola Bay system.
  Time_Period_of_Content:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 199910
    Currentness_Reference: ground condition
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: None planned
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -85.210270
      East_Bounding_Coordinate: -84.734270
      North_Bounding_Coordinate: 29.807750
      South_Bounding_Coordinate: 29.598130
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Environmental Monitoring
      Theme_Keyword: sediment
      Theme_Keyword: sediment grab
      Theme_Keyword: geographic information system
      Theme_Keyword: GIS
      Theme_Keyword: grain size
      Theme_Keyword: CSC Benthic Habitat Mapping
    Theme:
      Theme_Keyword_Thesaurus: ISO 19115 Topic Category
      Theme_Keyword: environment
      Theme_Keyword: biota
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Gulf of Mexico
      Place_Keyword: Florida
      Place_Keyword: Apalachicola
      Place_Keyword: East Bay
      Place_Keyword: St. Vincent Sound
      Place_Keyword: St. George Sound
  Access_Constraints: None
  Use_Constraints: It is the responsibility of the user to determine the appropriate use of the data product.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: NOAA Coastal Services Center
        Contact_Person: CRS Program Manager
      Contact_Address:
        Address_Type: mailing and physical
        Address: 2234 South Hobson Avenue
        City: Charleston
        State_or_Province: South Carolina
        Postal_Code: 29405
        Country: U.S.A
      Contact_Voice_Telephone: 843-740-1200
      Contact_Facsimile_Telephone: 843-740-1315
      Contact_Electronic_Mail_Address: csc@noaa.gov
      Hours_of_Service: 9 am to 5 pm, Eastern Standard Time
  Data_Set_Credit: NOAA Coastal Services Center
  Native_Data_Set_Environment: Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 8.3.0.800
Data_Quality_Information:
  Attribute_Accuracy:
    Attribute_Accuracy_Report: Values were checked against hard copy data sheets provided by the analysis laboratory. Total organic carbon analyses were repeated for samples where two subsamples differed by more than 10% (e.g., if sediment TOC was 1%, the replicate subsample must have a TOC between 0.9% and 1.1%).
  Logical_Consistency_Report: All data are believed to be logically consistent.
  Completeness_Report: All grab data were not included in this data layer. Percent values of sand, silt, clay, gravel, and total organic content, as well as a Folk description of grain size and median grain size (in phi units) are included.  Other calculated grain size metrics (such as mean grain size and percent skewness) were not included, but these data can be found in the Apalachicola Bay benthic database, available from the NOAA Coastal Services Center.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report: Stations were located in the field using a differential Global Positioning System (GPS), and station coordinates, date and time of day were recorded upon arrival at each station.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report: Not relevant to the data set.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Tierra Consulting, Inc.
          Originator: Apalachicola Bay National Estuarine Research Reserve
          Publication_Date: Unpublished material
          Title: Apalachicola Bay Sediment Survey, October 1999
          Geospatial_Data_Presentation_Form: None
          Other_Citation_Details: Tierra Consulting conducted the grain size analysis.  The Reserve conducted the organic content analysis.
      Type_of_Source_Media: database table
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 19991011
            Beginning_Time: 0800
            Ending_Date: 19991022
            Ending_Time: 1800
        Source_Currentness_Reference: ground condition
      Source_Citation_Abbreviation: Apalach sediment data
      Source_Contribution: Textural analysis and organic content for sediment grabs collected in Apalachicola Bay, Florida.
    Process_Step:
      Process_Description: Grab samples were collected using a 0.04 square meter Shipek grab.  Sediment grain size distributions (mean and median grain size, % size class) and total organic content (%) were measured in the laboratory from the sediment grabs.  For grain size distribution, each sample was washed with deionized water, dried, and weighed.  The coarse fraction was separated from the fine fraction (sand/silt) by sieving through U.S. Standard Sieve Mesh No. 230 (62.5 m).  Sediment texture of the coarse fractions was determined at half-phi intervals by passing the sediment through nested sieves on a Ro-Tap apparatus.  The weight of the material collected on each sieve was recorded.  A Sedigraph 5,000 ET Particle Size Analyzer was used to analyze the fine fraction ( less than  62.5  m).  Sediment texture descriptions followed the Wentworth classification as described in Folk (1974).  Organic content was measured using a weight-loss-upon-ignition procedure. A longitudinal section comprising approximately one third of the sample volume was sliced from each frozen sample for analysis.  These sections were dried in a 60 degrees Celsius oven for 2 to 3 days.  Sections were then weighed and burned for 2 hours at 550 to 600 degrees Celsius in a muffle furnace.  Sections were then cooled in a dessicator and weighed.  Organic content was assumed to be the weight lost upon ignition and expressed as a percentage. Reference: Folk, R.L. 1974. Petrology of Sedimentary Rocks. Austin, Texas.
      Process_Date: Unknown
Spatial_Data_Organization_Information:
  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Entity point
      Point_and_Vector_Object_Count: 136
Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Geographic:
      Latitude_Resolution: 0.000001
      Longitude_Resolution: 0.000001
      Geographic_Coordinate_Units: Decimal degrees
    Geodetic_Model:
      Horizontal_Datum_Name: North American Datum of 1983
      Ellipsoid_Name: Geodetic Reference System 80
      Semi-major_Axis: 6378137.000000
      Denominator_of_Flattening_Ratio: 298.257222
Entity_and_Attribute_Information:
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: sedgrabs
      Entity_Type_Definition: Unknown
      Entity_Type_Definition_Source: Unknown
    Attribute:
      Attribute_Label: FID
      Attribute_Definition: Internal feature number.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated.
      Beginning_Date_of_Attribute_Values: 19991011
      Ending_Date_of_Attribute_Values: 19991022
    Attribute:
      Attribute_Label: Shape
      Attribute_Definition: Feature geometry.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Coordinates defining the features.
      Beginning_Date_of_Attribute_Values: 19991011
      Ending_Date_of_Attribute_Values: 19991022
    Attribute:
      Attribute_Label: STATION
      Attribute_Definition: Unique identifier for sample sites.
      Attribute_Definition_Source: NOAA Coastal Services Center
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1124
          Range_Domain_Maximum: 5062
      Beginning_Date_of_Attribute_Values: 19991011
      Ending_Date_of_Attribute_Values: 19991022
    Attribute:
      Attribute_Label: LATITUDE
      Attribute_Definition: Latitude in decimal degrees.
      Attribute_Definition_Source: Unknown
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 29.59813
          Range_Domain_Maximum: 29.80775
      Beginning_Date_of_Attribute_Values: 19991011
      Ending_Date_of_Attribute_Values: 19991022
    Attribute:
      Attribute_Label: LONGITUDE
      Attribute_Definition: Longitude in decimal degrees.
      Attribute_Definition_Source: Unknown
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -85.21027
          Range_Domain_Maximum: -84.73427
      Beginning_Date_of_Attribute_Values: 19991011
      Ending_Date_of_Attribute_Values: 19991022
    Attribute:
      Attribute_Label: FOLK_DESC
      Attribute_Definition: Wentworth classification scale describing grain size (from Folk 1974).
      Attribute_Definition_Source: Folk, R.L. 1974. Petrology of Sedimentary Rocks. Austin, Texas.
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Gravel
          Enumerated_Domain_Value_Definition: Shell hash
          Enumerated_Domain_Value_Definition_Source: NOAA Coastal Services Center
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Gravelly Sand
          Enumerated_Domain_Value_Definition: Shelly Sand
          Enumerated_Domain_Value_Definition_Source: NOAA Coastal Services Center
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Gravelly Muddy Sand
          Enumerated_Domain_Value_Definition: Shelly Muddy Sand
          Enumerated_Domain_Value_Definition_Source: NOAA Coastal Services Center
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Muddy Gravel
          Enumerated_Domain_Value_Definition: Muddy Shell hash
          Enumerated_Domain_Value_Definition_Source: NOAA Coastal Services Center
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Muddy Sand
          Enumerated_Domain_Value_Definition: Unknown
          Enumerated_Domain_Value_Definition_Source: Unknown
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Muddy Sandy Gravel
          Enumerated_Domain_Value_Definition: Muddy Sandy Shell hash
          Enumerated_Domain_Value_Definition_Source: NOAA Coastal Services Center
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Sand
          Enumerated_Domain_Value_Definition: Unknown
          Enumerated_Domain_Value_Definition_Source: Unknown
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Sandy Clay
          Enumerated_Domain_Value_Definition: Unknown
          Enumerated_Domain_Value_Definition_Source: Unknown
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Sandy Gravel
          Enumerated_Domain_Value_Definition: Sandy Shell hash
          Enumerated_Domain_Value_Definition_Source: NOAA Coastal Services Center
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Sandy Mud
          Enumerated_Domain_Value_Definition: Unknown
          Enumerated_Domain_Value_Definition_Source: Unknown
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Sandy Silt
          Enumerated_Domain_Value_Definition: Unknown
          Enumerated_Domain_Value_Definition_Source: Unknown
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Silt
          Enumerated_Domain_Value_Definition: Unknown
          Enumerated_Domain_Value_Definition_Source: Unknown
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Silty Sandy
          Enumerated_Domain_Value_Definition: Unknown
          Enumerated_Domain_Value_Definition_Source: Unknown
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Slightly Gravelly Mud
          Enumerated_Domain_Value_Definition: Slightly Shelly Mud
          Enumerated_Domain_Value_Definition_Source: NOAA Coastal Services Center
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Slightly Gravelly Muddy Sand
          Enumerated_Domain_Value_Definition: Slightly Shelly Muddy Sand
          Enumerated_Domain_Value_Definition_Source: NOAA Coastal Services Center
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Slightly Gravelly Sand
          Enumerated_Domain_Value_Definition: Slightly Shelly Sand
          Enumerated_Domain_Value_Definition_Source: NOAA Coastal Services Center
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Slightly Gravelly Sandy Mud
          Enumerated_Domain_Value_Definition: Slightly Shelly Sandy Mud
          Enumerated_Domain_Value_Definition_Source: NOAA Coastal Services Center
      Beginning_Date_of_Attribute_Values: 19991011
      Ending_Date_of_Attribute_Values: 19991022
    Attribute:
      Attribute_Label: GRAVEL
      Attribute_Definition: Percent by mass of shell hash component.
      Attribute_Definition_Source: Unknown
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 97.38
      Beginning_Date_of_Attribute_Values: 19991011
      Ending_Date_of_Attribute_Values: 19991022
    Attribute:
      Attribute_Label: SAND
      Attribute_Definition: Percent by mass of sand component.
      Attribute_Definition_Source: Unknown
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.59
          Range_Domain_Maximum: 99.92
      Beginning_Date_of_Attribute_Values: 19991011
      Ending_Date_of_Attribute_Values: 19991022
    Attribute:
      Attribute_Label: SILT
      Attribute_Definition: Percent by mass of silt component.
      Attribute_Definition_Source: Unknown
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 85.82
      Beginning_Date_of_Attribute_Values: 19991011
      Ending_Date_of_Attribute_Values: 19991022
    Attribute:
      Attribute_Label: CLAY
      Attribute_Definition: Percent by mass of clay component.
      Attribute_Definition_Source: Unknown
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 66.56
      Beginning_Date_of_Attribute_Values: 19991011
      Ending_Date_of_Attribute_Values: 19991022
    Attribute:
      Attribute_Label: MEDIAN_PHI
      Attribute_Definition: Median grain size in phi
      Attribute_Definition_Source: Unknown
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -1.84
          Range_Domain_Maximum: 11.02
      Beginning_Date_of_Attribute_Values: 19991011
      Ending_Date_of_Attribute_Values: 19991022
    Attribute:
      Attribute_Label: TOC
      Attribute_Definition: Percent total organic carbon based on weight loss upon ignition in a muffle furnace.
      Attribute_Definition_Source: Unknown
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.26
          Range_Domain_Maximum: 22.18
      Beginning_Date_of_Attribute_Values: 19991011
      Ending_Date_of_Attribute_Values: 19991022
Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Clearinghouse Manager
        Contact_Organization: NOAA Coastal Services Center
      Contact_Address:
        Address_Type: mailing and physical
        Address: 2234 South Hobson Avenue
        City: Charleston
        State_or_Province: South Carolina
        Postal_Code: 29405
        Country: U.S.A.
      Contact_Voice_Telephone: 843-740-1200
      Contact_Facsimile_Telephone: 843-740-1315
      Contact_Electronic_Mail_Address: clearinghouse@noaa.gov
      Hours_of_Service: 9 am to 5 pm, Eastern Standard Time
  Resource_Description: Downloadable Data
  Distribution_Liability: While every effort has been made to ensure that these data are accurate and reliable within limits of the state of the art, NOAA will not assume any liability for damages caused by any inaccuracies in these data, or failure in their use.
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: ESRI Shapefile
        Transfer_Size: 0.043
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: http://www.csc.noaa.gov/benthic/data/gulf/apa.htm
    Fees: None
  Available_Time_Period:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 19991011
        Beginning_Time: 0800
        Ending_Date: 19991022
        Ending_Time: 1800
Metadata_Reference_Information:
  Metadata_Date: 20100519
  Metadata_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Metadata Specialist
        Contact_Organization: NOAA Coastal Services Center
      Contact_Address:
        Address_Type: mailing and physical
        Address: 2234 South Hobson Avenue
        City: Charleston
        State_or_Province: South Carolina
        Postal_Code: 29405
        Country: U.S.A.
      Contact_Voice_Telephone: 843-740-1200
      Contact_Facsimile_Telephone: 843-740-1224
      Contact_Electronic_Mail_Address: clearinghouse@noaa.gov
      Hours_of_Service: 9 am to 5 pm, Eastern Standard Time
  Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
  Metadata_Standard_Version: FGDC-STD-001-1998
  Metadata_Extensions:
    Online_Linkage: http://www.ncddc.noaa.gov/metadataresource/metadata-references/files/ncddcmdprofile_v2.pdf
    Profile_Name: Content Specification for Metadata in the National Coastal Data Development Center's Data Catalog Version 2.0
