2001 Raccoon Island Louisiana Habitat Data

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: U.S. Geological Survey, National Wetlands Research Center

Publication_Date: 2005

Title: 2001 Raccoon Island Louisiana Habitat Data

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publication_Place: Lafayette, LA

Publisher: U.S. Geological Survey, National Wetlands Research Center

Description:

Abstract:

This data set consists of digital data describing the wetland and upland habitats for Raccoon Island, a barrier island off the coast of Louisiana for the year 2001. The mapping was done in association with the USDA Natural Resources Conservation Service. Aerial photography at a scale of 1:6,000 was used to interpret habitat types. Wetlands were classified according to the Cowardin, et al., wetland classification scheme to the level of salinity modifers. Uplands were classifed using a customized classification scheme which can be cross-referenced to Anderson, et al.

Purpose:

To provide historical information for comparison to monitor wetland trends over time.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 200112

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -90.968999

East_Bounding_Coordinate: -90.905732

North_Bounding_Coordinate: 29.068939

South_Bounding_Coordinate: 29.039965

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: habitat

Theme_Keyword: wetland

Theme_Keyword: upland

Theme_Keyword: coastal habitats

Theme_Keyword: geographic information system

Theme_Keyword: GIS

Theme_Keyword: mapping

Theme_Keyword: NWI

Theme_Keyword: classification

Theme_Keyword: marsh

Theme_Keyword: aerial photography

Theme_Keyword: CIR

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: Coastal Louisiana

Place_Keyword: Louisiana

Place_Keyword: LA

Place_Keyword: Raccoon Island

Access_Constraints:

It is strongly recommended that this data is directly acquired from the U.S. Geological Survey, National Wetlands Research Center and not indirectly through other sources which may have changed the data in some way. The distributor makes no claims as to the data's suitability for other purposes.

Use_Constraints:

Acknowledgement of the U.S. Geological Survey, National Wetlands Research Center as a data source would be appreciated in products developed from these data. Users should be aware that comparison with other data sets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in mapping conventions, data collection, and computer processes over time. The distributor shall not be liable for improper or incorrect use of this data, based on the description of appropriate/inappropriate uses described in this metadata document. These data are not legal documents and are not to be used as such.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey, National Wetlands Research Center

Contact_Person: Larry Handley

Contact_Position: Geographer

Contact_Address:

Address_Type: mailing and physical address

Address: 700 Cajundome Blvd

City: Lafayette

State_or_Province: LA

Postal_Code: 70506

Country: USA

Contact_Voice_Telephone: 337 266-8691

Contact_Facsimile_Telephone: 337 266-8513

Contact_Electronic_Mail_Address: larry_handley@usgs.gov

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535

Cross_Reference:

Citation_Information:

Originator: U.S. Geological Survey, National Wetlands Research Center

Publication_Date: 2005

Title: Raccoon Island 1998 Habitat Data

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publication_Place: Lafayette, LA

Publisher: U.S. Geological Survey, National Wetlands Research Center

Cross_Reference:

Citation_Information:

Originator: U.S. Geological Survey, National Wetlands Research Center

Publication_Date: 2005

Title: Raccoon Island 2003 Habitat Data

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publication_Place: Lafayette, LA

Publisher: U.S. Geological Survey, National Wetlands Research Center

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Data was 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. Overall, the attribute accuracy is believed high due to the multiple error-checking steps done redundantly during processing.

Logical_Consistency_Report:

Data is inherently polygonal. 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 points 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.

Completeness_Report:

All photo-interpretable wetlands are identified and mapped using standard methodologies and equipment for the photo interpretation phases of the data development. In the upland areas, 1/4 acre wetlands generally are mapped. In coastal marsh, swamps, and bottomland hardwood areas, small open water and emergent wetlands are mapped. In general, the minimum mapping unit is from 1 to 3 acres depending of the wetland type and the scale and emulsion of the source aerial photography. Some small wetlands, densely broken marsh, and those wetlands obscured by dense forest cover may not be included in this data set. Processing of the digital data also follows conventions and standard methodologies for the time period and within limitations of available workstation equipment at the date of data development. Processing follows standard operating procedures as used, developed, and shared by the National Wetlands Inventory of the U.S. Fish and Wildlife Service.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

For reference points accuracy, the accuracy for the digital data are tested by visual comparison of the source with hard copy maps, and by understanding of the hardware tolerances and processing values reported by the software used in data development. Additional checks on comparison were possible when georeferencing/rectification was done using the USGS maps, which cite National Mapping Accuracy Standard compliance.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Aerodata

Publication_Date: 200112

Title: 2001 CIR Aerial photography of Raccoon Island

Geospatial_Data_Presentation_Form: remote-sensing image

Publication_Information:

Publication_Place: Baton Rouge, LA

Publisher: Aerodata

Source_Scale_Denominator: 6000

Type_of_Source_Media: stable-base material

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20011219

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: 2001 CIR

Source_Contribution:

The primary data source for the habitat interpretations. Additionally the imagery was used to generate a base map.

Process_Step:

Process_Description:

Color infrared aerial photography were photo interpreted for wetland and upland habitat classification. The habitat layers were then overlaid on top of a generated basemap using a Zoom Transfer Scope.

Process_Date: 2002

Process_Step:

Process_Description:

The hard copy maps were scanned, georeferenced, and vectorized at the U.S. Geological Survey, National Wetlands Research Center using an Ideal FCS 8010 scanner, Arc8.3 georeferencing module and Able Software Corporation Raster to Vector (R2V) conversion software.

Process_Date: 2004

Spatial_Data_Organization_Information:

Indirect_Spatial_Reference: Raccoon Island, Louisiana

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: G-polygon

Point_and_Vector_Object_Count: 1007

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 15

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.999600

Longitude_of_Central_Meridian: -93.000000

Latitude_of_Projection_Origin: 0.000000

False_Easting: 500000.000000

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000016

Ordinate_Resolution: 0.000016

Planar_Distance_Units: meters

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: raccoon01

Entity_Type_Definition: The attributes of 2001 Raccoon Island habitat mapping

Entity_Type_Definition_Source: USGS, NWRC

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.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: HABITAT

Attribute_Definition: The habitat code

Attribute_Definition_Source: USGS, NWRC

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name: Cowardin, et al., Wetland Classification Scheme

Codeset_Source:

Cowardin, Lewis M., Virginia Carter, Francis Goblet, and Edward T. LaRoe. Classification of wetlands and deepwater habitats of the United States. U.S. Fish and Wildlife Service. Biological Services Program; FWS/OBS - 79/31. 103 pp.

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name:

Modified version of Anderson et al. Classification scheme for uplands.

Codeset_Source:

Can be cross-referenced to Anderson, James R., Ernest E. Hardy, John T. Roach, and Richard T. Witmer. A Land Use and Land Cover Classification System for Use with Remote Sensor Data. Geological Survey Professional Paper 964. A revision of the land use classification system as presented in U.S. Geological Survey Circular 671. United States Government Printing Office, Washington, DC, USA.

Attribute:

Attribute_Label: RACCOON_HA

Attribute_Definition: The value for the merged habitats

Attribute_Definition_Source: USGS, NWRC

Attribute_Domain_Values:

Unrepresentable_Domain:

The list consists of values that are not established, but describes a grouping of NWI classification codes

Attribute:

Attribute_Label: BUFF_ID

Attribute_Definition: The unique id number for buffered polygons

Attribute_Definition_Source: USGS, NWRC

Attribute_Domain_Values:

Unrepresentable_Domain: Contains only one value, "0"

Attribute:

Attribute_Label: BUFF_DIST

Attribute_Definition: The buffered distance

Attribute_Definition_Source: USGS, NWRC

Attribute_Domain_Values:

Unrepresentable_Domain: Contains only one value, "250"

Attribute:

Attribute_Label: BUFF_AREA

Attribute_Definition: The buffered area

Attribute_Definition_Source: USGS, NWRC

Attribute_Domain_Values:

Unrepresentable_Domain: Contains only one value, "8199652.2902"

Attribute:

Attribute_Label: AREA

Attribute_Definition: The area of the polygon in coverage units

Attribute_Definition_Source: USGS, NWRC

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3.992

Range_Domain_Maximum: 3067039.494

Attribute_Units_of_Measure: coverage units

Attribute:

Attribute_Label: PERIMETER

Attribute_Definition: The perimeter of the polygon

Attribute_Definition_Source: USGS, NWRC

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 7.56

Range_Domain_Maximum: 23319.065

Attribute_Units_of_Measure: coverage units

Attribute:

Attribute_Label: ACRES

Attribute_Definition: The acreage of the polygon

Attribute_Definition_Source: USGS, NWRC

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.001

Range_Domain_Maximum: 757.879

Attribute_Units_of_Measure: acres

Metadata_Reference_Information:

Metadata_Date: 20050803

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey, National Wetlands Research Center

Contact_Position: Metadata Specialist

Contact_Address:

Address_Type: mailing and physical address

Address: 700 Cajundome Blvd

City: Lafayette

State_or_Province: LA

Postal_Code: 70506

Country: USA

Contact_Voice_Telephone: 337 266-8500

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Access_Constraints: None

Metadata_Use_Constraints:

Acknowledgement of the National Wetlands Research Center as the metadata source would be appreciated. Please cite the original metadata when using portions of the record to create a similar record of slightly altered data, such as reprojection.

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile