Identification_Information: Citation: Citation_Information: Originator: National Park Service South Florida/Caribbean Network Inventory and Monitoring Program Publication_Date: Spring 2006 Title: Tile Extent shapefile Geospatial_Data_Presentation_Form: vector digital data Description: Abstract: Represents the extent of a specific 2x2km tile that has usable LIDAR data. Purpose: This shapefile was generated as an intermediate step while creating a series of USGS LIDAR maps. Its polygons represent specific regions of a 2x2km tile that have usable LIDAR data. All areas not covered by polygons correspond to areas of No Data on the LIDAR tile. This shapefile is particularly useful as an analysis mask within Spatial Analyst. Supplemental_Information: See the source lidar GeoTIFF tile for more specific accuracy information. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20060322 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: Dry Tortugas National Park Keywords: Theme: Theme_Keyword: Extent Place: Place_Keyword: Dry Tortugas National Park Place_Keyword: Florida Access_Constraints: None Use_Constraints: None Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: National Park Service South Florida / Caribbean Network Contact_Person: Judd Patterson Contact_Position: Research Assistant Contact_Address: Address_Type: mailing and physical address Address: 18001 Old Cutler Road, Suite 419 City: Palmetto Bay State_or_Province: Florida Postal_Code: 33157 Country: United States Contact_Voice_Telephone: (305) 252-0347 Contact_Facsimile_Telephone: (305) 253-0463 Native_Data_Set_Environment: Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 8.3.0.800 Data_Quality_Information: Logical_Consistency_Report: This layer was generated from an existing lidar tile. Completeness_Report: This layer is complete. Lineage: Process_Step: Process_Description: The floating-point LIDAR data needs to be converted to an integer raster. This is done with the Int() command within the Raster Calculator. Process_Date: February 2006 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: National Park Service South Florida / Caribbean Network Contact_Person: Judd Patterson Contact_Position: Research Assistant Contact_Address: Address_Type: mailing and physical address Address: 18001 Old Cutler Road, Suite 419 City: Palmetto Bay State_or_Province: Florida Postal_Code: 33157 Country: United States Contact_Voice_Telephone: (305) 252-0347 Contact_Facsimile_Telephone: (305) 253-0463 Process_Step: Process_Description: Then the Raster to Feature command is used to convert the data into a vector shapefile. Process_Date: February 2006 Process_Step: Process_Description: An attribute query is run to locate polygons with a GRIDCODE value of -100. An edit session is started on the shapefile, the queried polygons are removed using the delete key, edits are saved, and the edit session is ended. Process_Date: February 2006 Spatial_Data_Organization_Information: 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: 1616 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 17 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -81.000000 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: 0.000001 Ordinate_Resolution: 0.000001 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: extent_e298n2722 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: ID Attribute_Definition: Unique ID. Attribute_Definition_Source: NPS Attribute: Attribute_Label: GRIDCODE Attribute_Definition: Elevation Value. Attribute_Definition_Source: NPS Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: National Park Service South Florida / Caribbean Network Contact_Address: Address_Type: mailing and physical address Address: 18001 Old Cutler Road; Suite 419 City: Miami State_or_Province: Florida Postal_Code: 33157 Country: United States Contact_Voice_Telephone: (305) 252-0347 Contact_Facsimile_Telephone: (305) 253-0463 Resource_Description: Dry Tortugas National Park Digital Map Atlas DVD Distribution_Liability: The National Park Service shall not be held liable for improper or incorrect use of the data described and/or contained herein. These data and related graphics are not legal documents and are not intended to be used as such. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: SHP Format_Version_Number: March 2006 Format_Specification: Shapefile Transfer_Size: 0.511 Digital_Transfer_Option: Offline_Option: Offline_Media: DVD Recording_Format: Standard DVD Fees: 0 Ordering_Instructions: Contact NPS for details. Custom_Order_Process: Call NPS for details. Metadata_Reference_Information: Metadata_Date: 20060524 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: National Park Service South Florida / Caribbean Network Contact_Person: Judd Patterson Contact_Position: Research Assistant Contact_Address: Address_Type: mailing and physical address Address: 18001 Old Cutler Road; Suite 419 City: Miami State_or_Province: Florida Postal_Code: 33157 Country: United States Contact_Voice_Telephone: (305) 252-0347 Contact_Facsimile_Telephone: (305) 253-0463 Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile