Biscayne National Park tile extent

Frequently-anticipated questions:


What does this data set describe?

    Title: tile_extent
    Abstract:
    Represents the extent of a specific 2x2km tile that has usable LIDAR data.

  1. How should this data set be cited?

    National Park Service South Florida/Caribbean Network Inventory and Monitoring Program, Spring 2006, tile_extent.

  2. What geographic area does the data set cover?

    Biscayne National Park

  3. Does the data set describe conditions during a particular time period?

    Calendar_Date: January 2006
    Currentness_Reference: publication date

  4. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: vector digital data

  5. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • G-polygon (55604)

    2. What coordinate system is used to represent geographic features?

      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 coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.000001
      Ordinates (y-coordinates) are specified to the nearest 0.000001
      Planar coordinates are specified in meters

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257222.

  6. How does the data set describe geographic features?

    tile_extent

    FID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    ID


    GRIDCODE



Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. To whom should users address questions about the data?

    National Park Service South Florida / Caribbean Network
    c/o Judd Patterson
    Research Assistant
    18001 Old Cutler Road, Suite 419
    Palmetto Bay, Florida 33157
    United States

    (305) 252-0347 (voice)
    (305) 253-0463 (FAX)


Why was the data set created?

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.


How was the data set created?

  1. From what previous works were the data drawn?

  2. How were the data generated, processed, and modified?

    Date: December 2005 (process 1 of 3)
    The floating-point LIDAR data needs to be converted to an integer raster. This is done with the Int() command within the Raster Calculator.

    Person who carried out this activity:

    National Park Service South Florida / Caribbean Network
    c/o Judd Patterson
    Research Assistant
    18001 Old Cutler Road, Suite 419
    Palmetto Bay, Florida 33157
    United States

    (305) 252-0347 (voice)
    (305) 253-0463 (FAX)

    Date: December 2005 (process 2 of 3)
    Then the Raster to Feature command is used to convert the data into a vector shapefile.

    Date: December 2005 (process 3 of 3)
    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.


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

  1. Who distributes the data set? (Distributor 1 of 1)

    National Park Service South Florida / Caribbean Network
    18001 Old Cutler Road; Suite 419
    Miami, Florida 33157
    United States

    (305) 252-0347 (voice)
    (305) 253-0463 (FAX)

  2. What's the catalog number I need to order this data set?

    Biscayne National Park Digital Map Atlas DVD

  3. What legal disclaimers am I supposed to read?

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 21-Mar-2006

Metadata author:
National Park Service South Florida / Caribbean Network
c/o Judd Patterson
Research Assistant
18001 Old Cutler Road; Suite 419
Miami, Florida 33157
United States

(305) 252-0347 (voice)
(305) 253-0463 (FAX)

Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

Metadata extensions used:


Generated by mp version 2.7.33 on Tue Mar 21 11:09:39 2006