Identification_Information: Citation: Citation_Information: Originator: SURDEX Corporation Publication_Date: 20090331 Publication_Time: Unknown Title: Digital Terrain Model, Spokane WA Geospatial_Data_Presentation_Form: vector digital data Description: Abstract: Topographic contours at a scale of 1"=200' and at an interval of two foot over the Spokane, WA METRO area generated from LiDAR and stereoscopic breaklines from digital aerial photography. Both source data sets were captured in July 2007 and contours were created and edited between Sept. 2008 and March 2009. Specifications for the raw source data sets are contained within their respective metadata documents titled "Spokane County WA 2007 Metro Area LiDAR Metadata" and "Spokane County WA 2007 Metro Area Orthophotos". Purpose: Digital Terrain Modeling Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 20070704 Photography Time_of_Day: unknown Single_Date/Time: Calendar_Date: 20070705 LiDAR Time_of_Day: unknown Single_Date/Time: Calendar_Date: 20070706 LiDAR Time_of_Day: unknown Single_Date/Time: Calendar_Date: 20070707 LiDAR Time_of_Day: unknown Single_Date/Time: Calendar_Date: 20070708 LiDAR Time_of_Day: unknown Single_Date/Time: Calendar_Date: 20070709 LiDAR Time_of_Day: unknown Single_Date/Time: Calendar_Date: 20070803 LiDAR Time_of_Day: unknown Single_Date/Time: Calendar_Date: 20070823 Photography Time_of_Day: unknown Single_Date/Time: Calendar_Date: 20070824 Photography Time_of_Day: unknown Single_Date/Time: Calendar_Date: 20070825 Photography Time_of_Day: unknown Single_Date/Time: Calendar_Date: 20070829 Photography Time_of_Day: unknown Single_Date/Time: Calendar_Date: 20070911 Photography Time_of_Day: unknown Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -117.672691 East_Bounding_Coordinate: -117.017907 North_Bounding_Coordinate: 47.860452 South_Bounding_Coordinate: 47.512442 Keywords: Theme: Theme_Keyword_Thesaurus: Digital Terrain Model Theme_Keyword: Topographic Theme_Keyword: Contours Theme: Theme_Keyword: Topographic Contours Place: Place_Keyword: Spokane, WA Access_Constraints: The topographic data has been produced under contract with Avista Utilities Use_Constraints: Unknown Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Randi Rich Contact_Organization: Avista Utilities Contact_Position: Manager, Engineering Technical Services Contact_Address: Address_Type: mailing and physical address Address: 1411 East Mission Avenue City: Spokane State_or_Province: WA Postal_Code: 99220-3727 Country: USA Contact_Voice_Telephone: 509-495-4645 Contact_Facsimile_Telephone: 509-495-8734 Contact_Electronic_Mail_Address: randi.rich@avistacorp.com Browse_Graphic: Browse_Graphic_File_Type: JPEG Security_Information: Security_Classification: Unclassified Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.6.1500 Data_Quality_Information: Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: American Society for Photogrammetry and Remote Sensing (ASPRS) Quantitative_Horizontal_Positional_Accuracy_Assessment: Horizontal_Positional_Accuracy_Value: 2.0 Horizontal_Positional_Accuracy_Explanation: Class 1, US Foot Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: American Society for Photogrammetry and Remote Sensing (ASPRS) Quantitative_Vertical_Positional_Accuracy_Assessment: Vertical_Positional_Accuracy_Value: 0.67 Vertical_Positional_Accuracy_Explanation: Class 1, US foot Lineage: Source_Information: Source_Scale_Denominator: 12700 Type_of_Source_Media: hard drive Process_Step: Process_Description: Digital aerial photography by SURDEX Corporation acquired in the summer of 2007 was triangulated for the purposes of sterescopic model generation. LiDAR data also acquired in the summer of 2007 was used as a baseline terrain model, and was subsequently reviewed in stereo. Operators removed errant LiDAR data and collected 3d breaklines on terrain changes where the LiDAR did not sufficiently generate two foot contours at Class 1 standards as defined by the ASPRS. Contours were generated using SURDEX proprietary algorithms and were cartographically edited and for file size purposes, split into individual 3,000' x 3,000' tiles, the same tiling scheme used for the Avista orthophoto project. The accompanying jpeg shows the layout and naming of the tiling scheme. Cloud_Cover: 0% 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: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Lambert Conformal Conic Lambert_Conformal_Conic: Standard_Parallel: 47.500000 Standard_Parallel: 48.733333 Longitude_of_Central_Meridian: -120.833333 Latitude_of_Projection_Origin: 47.000000 False_Easting: 1640416.666667 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000000 Ordinate_Resolution: 0.000000 Planar_Distance_Units: survey feet Geodetic_Model: Horizontal_Datum_Name: D_North_American_1983_HARN 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_Resolution: 0.000010 Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: SpokaneMetro_boundary_harn 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: OBJECTID Attribute: Attribute_Label: Shape_Area Attribute_Definition: Area of feature in internal units squared. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Positive real numbers that are automatically generated. Distribution_Information: Resource_Description: Downloadable Data Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Transfer_Size: 0.004 Metadata_Reference_Information: Metadata_Date: 20090331 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: SURDEX Corporation Contact_Person: Tim Bohn Contact_Address: Address_Type: mailing and physical address Address: 520 Spirit of St. Louis Blvd City: Chesterfield State_or_Province: MO Postal_Code: 63005 Contact_Address: Address_Type: mailing and physical address Address: 520 Spirit of St. Louis Blvd Contact_Voice_Telephone: 636-368-4400 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