Identification_Information: Citation: Citation_Information: Originator: Sanborn Map Company, Inc. Publication_Date: 2011 Title: City of Lubbock LiDAR Description: Abstract: LAS and bare-earth files of the City of Lubbock and surrounding region. The LiDAR was produced by The Sanborn Map Co., Inc. and provided to the City of Lubbock, TX in LAS,ASCII, DGN and Geomedia formats. The orthoimagery is tiled to 1/4 square mile tiles named based on naming convention provided by the City of Lubbock that indicates the City's basemap grid number and geographic quadrant of the grid (NW, NE, SW, SE). Purpose: The LiDAR is provided to the City of Lubbock, TX and the Lubbock Metropolitan Planning Organization serves as a base map to be used for multiple purposes such as drainage studies, contour development, planning, and map production. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20110303 Ending_Date: 20110306 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -102.119173 East_Bounding_Coordinate: -101.669206 North_Bounding_Coordinate: 33.726640 South_Bounding_Coordinate: 33.398935 Keywords: Theme: Theme_Keyword_Thesaurus: LiDAR Theme_Keyword: digital elevation model Theme_Keyword: digital terrain model Theme_Keyword: surface model Theme_Keyword: drainage studies Place: Place_Keyword_Thesaurus: Texas Place_Keyword: City of Lubbock Place_Keyword: Lubbock County Access_Constraints: Access to this data set is provided by the City of Lubbock and the LMPO. Use_Constraints: Credit and Disclaimer Statement (LMPO) The preparation of this report has been financed in part through grant(s) from the Federal Highway Administration and Federal Transit Administration, U.S. Department of Transportation, under the Metropolitan Planning Program, Section 104 (f) of Title 23, U.S. Code. The contents of this report do not necessarily reflect the official views or policy of the U.S. Department of Transportation. City of Lubbock Disclaimer Statement These images, maps and data were created exclusively for the internal use of the City of Lubbock. Portions of the information may be incorrect or not current. Any person or entity who relies on any information obtained from these maps and data does so at their own risk. Neither the City of Lubbock, Texas, nor any agency, officer, or employee of the City of Lubbock, Texas, warrants the accuracy, reliability, or timeliness of such information. THIS PUBLICATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. THE CITY OF LUBBOCK SHALL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES RELATED TO THE USE OF THIS PUBLICATION, EVEN IF THE CITY OF LUBBOCK IS ADVISED OF SUCH DAMAGE. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: City of Lubbock, TX Contact_Person: Sally Abbe Contact_Address: Address_Type: mailing address Address: PO Box 2000 City: Lubbock State_or_Province: TX Postal_Code: 79457 Country: USA Contact_Voice_Telephone: (806) 775-2106 Contact_Electronic_Mail_Address: SAbbe@mail.ci.lubbock.tx.us Security_Information: Security_Classification_System: none Security_Classification: Unclassified Security_Handling_Description: none Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; Intergraph GeoMedia Professional Data_Quality_Information: Attribute_Accuracy: Quantitative_Attribute_Accuracy_Assessment: Completeness_Report: The tiles are checked for classification of bare earth, voids,inaccurate elevations,and other anomalies generally associated with LiDAR products. The tiles are checked and any discrepancies are resolved through the use of editing tools. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The bare-earth LiDAR data meets horizontal accuracy requirement of 0.5 meters RMSEz Quantitative_Horizontal_Positional_Accuracy_Assessment: Horizontal_Positional_Accuracy_Value: 0.5 Horizontal_Positional_Accuracy_Explanation: 0.5 meter RMSE Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: The bare-earth LiDAR data meets vertical accuracy requirement of 9.24 centimeters RMSEz Quantitative_Vertical_Positional_Accuracy_Assessment: Vertical_Positional_Accuracy_Value: 9.24 Vertical_Positional_Accuracy_Explanation: 9.24 centimeters RMSEz Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Sanborn Map Co., Inc. Publication_Date: Unpublished Material Title: Ground Control Geospatial_Data_Presentation_Form: vector digital data Type_of_Source_Media: disc Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20110303 Ending_Date: 20110306 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: CONT Source_Contribution: Geodetic ground control is used to create a digital control file as well as QC check of LiDAR accuracy. GPS checkpoints are used to assess the accuracy of the resulting bare-earth. Process_Step: Process_Description: The aerial triangulation process uses the processed GPS/IMU data and correctly oriented imagery to compute the bundle adjustment. Source_Used_Citation_Abbreviation: CONT Process_Date: 2011 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Sanborn Map Co., Inc. Contact_Person: Karen Adkins Contact_Position: Project Manager Contact_Address: Address_Type: mailing and physical address Address: 1935 Jamboree Drive, Suite 100 City: Colorado Springs State_or_Province: CO Postal_Code: 80920 Country: USA Contact_Voice_Telephone: 719-593-0093 Contact_Facsimile_Telephone: 719-528-5093 Contact_Electronic_Mail_Address: kadkins@sanborn.com Hours_of_Service: 8:00 AM - 5:00 PM M-F Process_Step: Process_Description: Data Collection: Using a Leica Light Detection And Ranging (LiDAR) system, (0.7 meter ground sample distance) data were collected over the City of Lubbock and surrounding area (approx 419 square miles). Multiple returns were recorded for each laser pulse along with an intensity value for each return. During the LIDAR campaign, the Sanborn field crew conducted a GPS field survey to establish final coordinates of the ground base stations for final processing of the base-remote GPS solutions. Source_Used_Citation_Abbreviation: CONT Process_Date: 2011 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Sanborn Map Co., Inc. Contact_Person: Karen Adkins Contact_Position: Project Manager Contact_Address: Address_Type: mailing and physical address Address: 1935 Jamboree Drive, Suite 100 City: Colorado Springs State_or_Province: CO Postal_Code: 80920 Country: USA Contact_Voice_Telephone: 719-593-0093 Contact_Facsimile_Telephone: 719-528-5093 Contact_Electronic_Mail_Address: kadkins@sanborn.com Hours_of_Service: 8:00 AM - 5:00 PM M-F Process_Step: Process_Description: Airborne GPS Processing: Airborne GPS data was differentially processed and integrated with the post processed IMU data to derive a Smoothed Best Estimate of Trajectory (SBET). The SBET was used to reduce the LiDAR slant range measurements to a raw reflective surface for each flight line. The overlap between flight lines was removed to provide a homogeneous coverage, and the coverage was classified to extract a bare earth digital elevation model (DEM). Airborne GPS is differentially processed using the GrafNAV V7.50 software by Waypoint Consulting of Calgary, Alberta, Canada. The PDOP and distance separation is as follows: The classification and quality control (QC) of LiDAR data is carried out using TerraScan software by Terrasolid Limited of Helinski, Finland Source_Used_Citation_Abbreviation: CONT Process_Date: 2011 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Sanborn Map Co., Inc. Contact_Person: Karen Adkins Contact_Position: Project Manager Contact_Address: Address_Type: mailing and physical address Address: 1935 Jamboree Drive, Suite 100 City: Colorado Springs State_or_Province: CO Postal_Code: 80920 Country: USA Contact_Voice_Telephone: 719-593-0093 Contact_Facsimile_Telephone: 719-528-5093 Process_Step: Process_Description: LIDAR Point Classification The classification and quality control (QC) of LiDAR data is carried out using TerraScan software by Terrasolid Limited of Helinski, Finland Process_Date: 2011 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Sanborn Map Co., Inc. Contact_Person: Karen Adkins Contact_Position: Project Manager Contact_Address: Address_Type: mailing and physical address Address: 1935 Jamboree Drive, Suite 100 City: Colorado Springs State_or_Province: CO Postal_Code: 80920 Country: USA Contact_Voice_Telephone: 719-593-0093 Contact_Facsimile_Telephone: 719-528-5093 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Lambert Conformal Conic Lambert_Conformal_Conic: Standard_Parallel: 32.133333 Standard_Parallel: 33.966667 Longitude_of_Central_Meridian: -98.500000 Latitude_of_Projection_Origin: 31.666667 False_Easting: 1968500.000000 False_Northing: 6561666.666667 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.250000 Ordinate_Resolution: 0.250000 Planar_Distance_Units: survey feet 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: 0.25 Altitude_Distance_Units: feet Altitude_Encoding_Method: Implicit coordinate Entity_and_Attribute_Information: Overview_Description: Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: City of Lubbock, TX Contact_Person: Sally Abbe Contact_Address: Address_Type: mailing address Address: PO Box 2000 City: Lubbock State_or_Province: TX Postal_Code: 79457 Country: USA Contact_Voice_Telephone: (806) 775-2106 Contact_Electronic_Mail_Address: SAbbe@mail.ci.lubbock.tx.us Resource_Description: Downloadable Data Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Transfer_Size: 109000.00 Metadata_Reference_Information: Metadata_Date: 20110909 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Sanborn Map Company Contact_Person: Karen Adkins Contact_Position: Project Manager Contact_Address: Address_Type: mailing and physical address Address: 1935 Jamboree Dr. Suite 100 City: Colorado Springs State_or_Province: CO Postal_Code: 80920 Country: USA Contact_Voice_Telephone: (719) 264-5542 Contact_TDD/TTY_Telephone: N/A Contact_Facsimile_Telephone: (719) 528-5093 Contact_Electronic_Mail_Address: kadkins@sanborn.com Hours_of_Service: 8:00 AM - 5:00 PM MST 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: Credit and Disclaimer Statement (LMPO) The preparation of this report has been financed in part through grant(s) from the Federal Highway Administration and Federal Transit Administration, U.S. Department of Transportation, under the Metropolitan Planning Program, Section 104 (f) of Title 23, U.S. Code. The contents of this report do not necessarily reflect the official views or policy of the U.S. Department of Transportation. City of Lubbock Disclaimer Statement These images, maps and data were created exclusively for the internal use of the City of Lubbock. Portions of the information may be incorrect or not current. Any person or entity who relies on any information obtained from these maps and data does so at their own risk. Neither the City of Lubbock, Texas, nor any agency, officer, or employee of the City of Lubbock, Texas, warrants the accuracy, reliability, or timeliness of such information. THIS PUBLICATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. THE CITY OF LUBBOCK SHALL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES RELATED TO THE USE OF THIS PUBLICATION, EVEN IF THE CITY OF LUBBOCK IS ADVISED OF SUCH DAMAGE. Metadata_Security_Information: Metadata_Security_Classification_System: none Metadata_Security_Classification: Unclassified Metadata_Security_Handling_Description: none Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile