Identification_Information: Citation: Citation_Information: Originator: Horizons, Inc. Publication_Date: 20051222 Title: Contours_Bismarck Edition: One Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: Bismarck, North Dakota Publisher: Bismarck-Mandan MPO Online_Linkage: http://gis1.state.nd.us/Cities/Bismarck/Contours_2005/ Larger_Work_Citation: Citation_Information: Originator: Horizons, Inc. Publication_Date: 20051222 Title: Bismarck-Mandan Digital Terrain Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Bismarck, North Dakota Publisher: Bismarck-Mandan MPO Description: Abstract: Horizons, Inc. was contracted by the Bismarck-Mandan Metropolitan Planning Organization to provide an update 2 1/2 sections of existing 2' contour data and collect new DTM data for the generation on 2' contours on 39 new sections. A Leica ADS40 Digital Camera system including an inertial measuring unit (IMU) and a dual frequency airborne GPS receiver was used for the digital image acquisition. Imagery acquisition was performed on April 17th and April 22nd of 2005 at 4800' AMT. Ground control survey was conducted by Kadrmas, Lee and Jackson of Bismarck, North Dakota. A survey report summarizing methodology and results was submitted in hardcopy and a digital file in PDF format. GPS data was collected on two new monuments and 11 existing MPO monuments. The resulting coordinates for each new station are referenced to NAD 83(96) datum in North Dakota State Coordinate System South Zone (3302). The horizontal units were international feet. The GPS Orthometric Heights were determined by calculating the Ellipsoid-Geoid separation using Geoid 99 model and are based on NGVD 1929 international feet. The existing DTM data which Horizons had collected in 2001 was updated to support 2' contours where requested. New mapping was performed on 25 sections and an additional 30 sections of DTM collection was done for ortho rectification only. Contour were generated from the updated and new DTM data and delivered in ESRI shapefile format. The DTM data including breaklines, random points and spot elevation points were also delivered in ESRI shapefile format. Purpose: The purpose of collecting this data was to provide engineers and planning personnel valuable topographic information. Supplemental_Information: None Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20050417 Ending_Date: 20051222 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: Unknown Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -100.910959 East_Bounding_Coordinate: -100.624842 North_Bounding_Coordinate: 46.925255 South_Bounding_Coordinate: 46.691940 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Contours Theme_Keyword: Index Theme_Keyword: Intermediate Theme_Keyword: Coverage Theme_Keyword: environment Theme_Keyword: geoscientificInformation Place: Place_Keyword_Thesaurus: None Place_Keyword: Bismarck Place_Keyword: Mandan Place_Keyword: North Dakota Access_Constraints: None Use_Constraints: None Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: City of Bismarck Contact_Person: Mike E. Schnetzer Contact_Position: GIS Coordinator Contact_Address: Address_Type: mailing and physical address Address: 221 N. Fifth Street City: Bismarck State_or_Province: North Dakota Postal_Code: 58506 Country: United States Contact_Voice_Telephone: 701-222-7514 Contact_Facsimile_Telephone: 701-222-6450 Contact_Electronic_Mail_Address: mschnetz@state.nd.us Hours_of_Service: 8:00 A.M. to 5:00 P.M. - Central Time Zone Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The collection of significant topographic breaks, mass points, and spot elevations to accomodate 1"=100' scale mapping and comply with National Map Accuracy Standards. A ground control network of 14 targeted points was established. The control was tied to the North Dakota State Plane coordinate system NAD83 datum. The vertical control was based on the NGVD 1929 datum. GPS phase data was post processed with continuous kinematic survey techniques using "On the Fly" (OTF) integer ambiguity resolution. The GPS data was processed with forward and reverse processing algorithms. The results from each process, using the data collected at the airport, were combined to yield a single fixed integer phase differential solution of the aircraft trajectory. The differences between the forward to reverse solution within the project area were within project specifications (<10cm) in both the horizontal and vertical components, indicating a valid and accurate solution. An IMU was used to record precise changes in position and orientation of the ADS40 Digital Camera System. All IMU data was processed post flight with a filter to integrate inertial measurements and precise phase differential GPS positions. The resulting solution contains geodetic position, omega, phi, kappa, and time for digital image processing. Logical_Consistency_Report: None Completeness_Report: None Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The horizontal RMS from the aero-triangulation for the project was: X - RMS = .045 feet, Y - RMS = .034 feet. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: The vertical positional accuracy of this data meets NMAS for 2 feet contours. The vertical RMS from the aero-triangulation for the project was: Z - RMS = .034 feet. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Horizons, Inc. Publication_Date: 20050417 Title: Bismarck-Mandan Digital Terrain Source_Scale_Denominator: 7200 Type_of_Source_Media: CD-ROM Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20050417 Ending_Date: 20050422 Source_Currentness_Reference: Date of Photography Source_Citation_Abbreviation: None Source_Contribution: None Process_Step: Process_Description: The Leica GeoSystems GPro software was used for downloading and preparing imagery collected with the ADS40 Airborne Digital Sensor for softcopy photogrammetric use. The raw image was download in the field with GPro to a portable workstation. This enabled a quick look at image quality and coverage. Using the Applanix POSgps software package the GPS data was differentially processed against a base station. After the differential GPS solution was checked and verified the Applanix POSproc program was used to compute an integrated GPS/IMU navigation solution at one-second intervals. Using the GPS/IMU trajectory computed by the Applanix POSproc software and the camera calibration, GPro computed a full x,y,z, omega,phi,kappa exterior orientation of each scan line. Using the orientation data file produced the L0 imagery was resampled. The resampling removes most aircraft motion and provides epipolar geometry imagery for stereo viewing, automated aerotriangulation and automated DEM extraction. The Level 1 epipolar-resampled and georeferenced imagery usually will provide a pixel?s true ground location to within a few pixels without any additional processing. To improve accuracy, a fully automatic aerotriangulation process was performed to minimize the residual errors in the GPS/IMU derived exterior orientations. The aerotriangulation also allowed the introduction of ground control and checkpoints to ensure the accuracy specifications were achieved. Automated aerotriangulation of ADS40 imagery was performed with the Socet Set Automatic Point Measurement (APM) tool. A digital elevation model (DEM) was required for orthophoto production. Using L1 imagery new DTM data was collected as well as existing DTM data was updated using KLT softcopy plotters with superimposition. The resulting updated and new DTM data was used for the generation of new 2' contours as well as DTM data to support the ortho only areas. Contours were generated utilizing ARC-VIEW 3.2. Graphic Edit and GIS technicians reviewed the contours generated and edited the DTM data where necessary to produce accurate 2' contours. The final reviewed map files were delivery in ARC Shape files with delivery on CD-ROM. Process_Date: 20020429 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Guy Meiron, PE Contact_Organization: Horizons Inc. Contact_Position: Vice-President of Engineering Contact_Address: Address_Type: mailing and physical address Address: 3600 Jet Drive City: Rapid City State_or_Province: South Dakota Postal_Code: 57703 Country: United States Contact_Voice_Telephone: 605-343-0280 Contact_Facsimile_Telephone: 605-343-0305 Contact_Electronic_Mail_Address: guy.meiron@horizonsinc.com Hours_of_Service: 8am-5pm Mountain Time Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 48873 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Lambert Conformal Conic Lambert_Conformal_Conic: Standard_Parallel: 46.183333 Standard_Parallel: 47.483333 Longitude_of_Central_Meridian: -100.500000 Latitude_of_Projection_Origin: 45.666667 False_Easting: 1968503.937008 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000128 Ordinate_Resolution: 0.000128 Planar_Distance_Units: international 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: National Geodetic Vertical Datum of 1929 Altitude_Resolution: 0.01 Altitude_Distance_Units: International Feet Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Contours_Bismarck Entity_Type_Definition: Contours Entity_Type_Definition_Source: Horizons - 1"=100' Compilation Specification 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: ELEVATION Attribute: Attribute_Label: TYPE Attribute: Attribute_Label: Shape_Leng Attribute: Attribute_Label: DXF_LAYER Overview_Description: Entity_and_Attribute_Overview: The data set contains contours on a 2' interval. A 'type' field identifies the contour as index, intermediate (intermed), obscured index (index_obs), or obscured intermediate (intermed_obs). An 'elevation', 'elevation_dxf' field indentifies each contour segments elevation. Entity_and_Attribute_Detail_Citation: (See Data Quality - Completeness Report)) Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Bismarck-Mandan MPO Contact_Person: Mike E. Schnetzer Contact_Position: GIS Coordinator Contact_Address: Address_Type: mailing and physical address Address: 221 N. Fifth Street City: Bismarck State_or_Province: North Dakota Postal_Code: 58506 Country: United States Contact_Voice_Telephone: 701-222-7514 Contact_Facsimile_Telephone: 701-222-6450 Contact_Electronic_Mail_Address: mschnetz@state.nd.us Hours_of_Service: 8am-5pm Central Time Resource_Description: Bismarck-Mandan MPO Distribution_Liability: Unknown Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Transfer_Size: 166.135 Metadata_Reference_Information: Metadata_Date: 20060118 Metadata_Review_Date: 20051222 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Horizons, Inc. Contact_Person: Guy Meiron, PE Contact_Position: Vice-President of Engineering Contact_Address: Address_Type: Mailing and physical address Address: 3600 Jet Drive City: Rapid City State_or_Province: South Dakota Postal_Code: 57703 Country: United States Contact_Voice_Telephone: 605-343-0280 Contact_Facsimile_Telephone: 605-343-0305 Contact_Electronic_Mail_Address: guy.meiron@horizonsinc.com Hours_of_Service: 8am-5pm Mountain Time 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 Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile