Identification_Information: Citation: Citation_Information: Originator: U. S. Geological Survey, FISC St. Petersburg Publication_Date: Fall 2007 Title: EAARL Topography-Gulf Islands National Seashore-Mississippi Edition: First Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Open File Report Issue_Identification: 2007-1377 Publication_Information: Publication_Place: St. Petersburg, FL Publisher: U. S. Geological Survey Other_Citation_Details: The U. S. Geological Survey, in cooperation with the National Park Service (NPS) and the National Aeronautics and Space Administration (NASA), is to provide the coastal management community with usable, useful digital elevation products. The U. S. Geological Survey processes aircraft lidar data (provided by NASA), develops software tools and algorithms to use and analyze the data and make products available to the coastal management community through a variety of media, including the internet, CD-ROMs, DVDs and data reports. Series_Information: Open File Report Publication_Information: 2007-1377 Description: Abstract: GIS contour lines of Gulf Islands National Seashore derived from a Lidar GeoTIFF file. Purpose: This contour shapefile was generated from a Lidar GeoTIFF. It shows contour lines at 1 meter intervals, and will be used to aid in the interpretation and display of Lidar data files. Supplemental_Information: See the source Lidar GeoTIFF tile for more specific accuracy information. Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 20050901, 20050903, 20050904, 20050907, 20050908 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: Unknown Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: East_Bounding_Coordinate: North_Bounding_Coordinate: South_Bounding_Coordinate: Keywords: Theme: Theme_Keyword_Thesaurus: NONE Theme_Keyword: Contour map Theme_Keyword: elevation change Place: Place_Keyword: Gulf Islands National Seashore Place_Keyword: Mississippi Place_Keyword: Gulf of Mexico Stratum: Stratum_Keyword: bare earth topography Temporal: Access_Constraints: Any use of these data signifies a user's agreement to comprehension and compliance of the U. S. Geological Survey's Standard Disclaimer. Ensure all portions of metadata are read and clearly understood before using these data in order to protect both user and U. S. Geological Survey interests. See section 6.3 Distribution Liability. Use_Constraints: Although the U. S. Geological Survey is making these data sets available to others who may find the data of value, the U. S. Geological Survey does not warrant, endorse, or recommend the use of these data setse for any given purpose. The user assumes the entire risk related to the use of these data. These data sets are not for navigational purposes. The U. S. Geological Survey is providing these data "as is", and the U. S. Geological Survey disclaims any and all warranties, whether expressed or implied, including (without limitation) any implied warranties of merchantability or fitness for a particular purpose. In no event will the U. S. Geological Survey be liable to you or to any third party for any direct, indirect, incidental, consequential, special, or exemplary damages or lost profits resulting from any use or misuse of these data. Acknowledgement of the U.S. Geological Survey, FISC St. Petersburg office, as a data source would be appreciated in products developed from these data, and such acknowledgement as is standard for citation and legal practices for data source is expected by users of this data. Sharing new data layers developed directly from these data would also be appreciated by the U. S. Geological Survey staff. Users should be aware that comparisons with other data sets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in photo interpretation, mapping conventions, and digital processes over time. 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, FISC St. Petersburg Contact_Address: Address_Type: mailing and physical address Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: 727 803-8747 Hours_of_Service: 8:30-5:00 M-F EST Contact_Instructions: Call Survey for Details Browse_Graphic: Data_Set_Credit: The U. S. Geological Survey, FISC St. Petersburg office, would like to acknowledge NASA Goddard Space Flight Center for their cooperation and assistance in the development of the data. The U. S. Geological Survey would also like to acknowledge National Park Service management and personnel at Gulf Islands National Seashore. Security_Information: Security_Classification: Unclassified Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcMap 9.2.0 1324 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The expected accuracy of the measured variables is as follows: attitude within 0.07 degree, 3-cm nominal ranging accuracy, and verticle elevation accuracy of +/- 15cm (bare earth). Quality checks are built into the data-processing software. Logical_Consistency_Report: This layer was generated from an existing Lidar tile. Completeness_Report: Contour lines break where there was no data (value of -100) in the original Lidar tiles. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Raw elevation measurements have been determined to be within 1.5 meter horizontal accuracy. Processing steps (grid interpolation) may introduce additional error which has not been tested at the time of this publication. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Elevations of the DEM are vertically consistent with the point elevation data, +/- 15cm. Lineage: Source_Information: Type_of_Source_Media: computer program Source_Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 20050901, 20050903, 20050904, 20050907, 20050908 Source_Currentness_Reference: ground condition Process_Step: Process_Description: The Lidar GeoTIFF data was too coarse to create aesthetically pleasing contours. A Neighborhood Statistics operation was run on the Lidar GeoTIFF file in ARCMap. The settings for the Neighborhood Statistics operation were a 14x14 cell rectangle, using the mean as the statistic type and then output to a temporary raster grid. Process_Date: Spring 2007 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: National Park Service South Florida/Caribbean Network Contact_Person: Iris Wilson Contact_Position: Research Assistant Contact_Address: Address_Type: mailing and physical address Address: 18001 Old Cutler Road City: Palmetto Bay State_or_Province: FL Postal_Code: 33157 Country: USA Contact_Voice_Telephone: (305) 252-0347 Hours_of_Service: 8:30-5:00 M-F EST Process_Step: Process_Description: Contour lines were generated using the Contour operation in ArcMap. The temporary Neighborhood Statistics grid was used as the input surface and the contour interval was set to 1 (meter). This was output to a permanent shapefile. Process_Date: Spring 2007 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: National Park Service South Florida/Caribbean Network Contact_Person: Iris Wilson Contact_Position: Research Assistant Contact_Address: Address_Type: mailing and physical address Address: 18001 Old Cutler Road City: Palmetto Bay State_or_Province: FL Postal_Code: 33157 Country: USA Contact_Voice_Telephone: (305) 252-0347 Hours_of_Service: 8:30-5:00 M-F EST Process_Step: Process_Description: Metadata imported into ArcCatalog from XML file. Process_Date: 2070829 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U. S. Geological Survey, FISC St. Petersburg Contact_Address: Address_Type: mailing and physical address Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: 727 803-8747 Hours_of_Service: 8:30-5:00 M-F EST Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 16 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -75.000000 Latitude_of_Projection_Origin: 0.000000 False_Easting: 500000.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: row and column Coordinate_Representation: Abscissa_Resolution: 1.000000 Ordinate_Resolution: 1.000000 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 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: North American Vertical Datum of 1988 Altitude_Resolution: .15 Altitude_Distance_Units: meters Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates Entity_and_Attribute_Information: Overview_Description: Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U. S. Geological Survey, FISC St. Petersburg Contact_Address: Address_Type: mailing and physical address Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: 727-803-8747 Hours_of_Service: 8:30-5:00 M-F EST Contact_Instructions: Call U. S. Geological Survey for Details Distribution_Liability: The U. S. Geological Survey gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. It is strongly recommended that these data are directly acquired from a U. S. Geological Survey server and not indirectly through other sources which may have changed the data in some way. Although these data have been processed successfully on a computer system at the U. S. Geological Survey, no warranty expressed or implied is made regarding the utility of the data on another system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Transfer_Size: 0.000 Ordering_Instructions: Call U. S. Geological Survey for Details Custom_Order_Process: Call U. S. Geological Survey for Details Available_Time_Period: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 20050901, 20050903, 20050904, 20050907, 20050908 Metadata_Reference_Information: Metadata_Date: 20070829 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U. S. Geological Survey, FISC St. Petersburg Contact_Address: Address_Type: mailing and physical address Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: 727-803-8747 Hours_of_Service: 8:30-5:00 M-F EST Contact_Instructions: Call U. S. Geological Survey for Details Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Security_Information: Metadata_Security_Classification: Unclassified