South Central Ontario Orthophotography Project (SCOOP) 2013 Coordinate system: 26917 - "NAD83 / UTM zone 17N" Abstract: SCOOP digital imagery was collected with sensor Leica geosystems ADS80 SH82 for areas of Ontario between April 26th and May 7th 2013. The project encompassed an area of approximately 35,762 square kilometers, covering parts of South Central Ontario including Peterborough, Haliburton, Muskoka, Simcoe and surrounding areas. A Leica ADS80 SH82 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 at 1,920m AMT (above mean terrain) to produce 20cm GSD RGBNiR orthorectified imagery and related products. Ground control survey was also collected by Fugro. Orthoimagery are available in 1km by 1km coverage tiles in JPG2000 and TIFF image file format.

Additional Documentation

• Metadata Information

  Language: eng; CAN

  Last Update: 2015-04-27

  Other Maintenance Requirements:

  f8f94c8c-4a62-42a0-b1f7-f105c3770b80

  Metadata Contact:

  Scholars Portal, Ontario Council of University Libraries Toronto Ontario, Canada

  http://scholarsportal.info

  Contact Instructions:

  gis@scholarsportal.info

  Metadata Standard:

  North American Profile of ISO19115:2003 - Geographic Information

• Citation Information

  
  

  Ontario Ministry of Natural Resources Peterborough Ontario, Canada

  Fugro Earthdata, Inc. Maryland, United States

  Land Information Ontario (LIO), Ministry of Natural Resources Peterborough Ontario, Canada

  Themes or Categories of the Resource: imageryBaseMapsEarthCover

  Keywords:

  Imagery, Orthophotos, Raster, Mosaic

  Aerial photography, Photographie aérienne

  Place Keywords:

  Continent > North America > Canada > Ontario

  Purpose:

  This image data is the result of over 40 private and government entities working together under the guidance of the Ontario Ministry of Natural Resources (OMNR), Land Information Ontario program. The orthophotos will be used for GIS and planning by all funding partners.

  Dataset Language: eng; CAN

  Status: completed

  Update Frequency: notPlanned

  Spatial Representation Type: grid

  Extent

  West Longitude: -80.365222

  East Longitude: -76.569658

  North Latitude: 45.725670

  South Latitude: 43.836588

  
  

  Supplemental Information:

• Spatial Representation - Grid:

  Number of dimensions: 2

  Axis dimensions properties:

• Reference System Information

  Reference System Identifier

  Value: 26917

  Code Space: http://www.epsg-registry.org/

• Data Quality Information

  Scope Level: dataset

  
  

  Process step:

  The Leica GeoSystems XPro software was used for downloading and preparing imagery collected with the ADS80 Airborne Digital Sensor for soft copy photogrammetric use. The raw image was downloaded in the field with XPro to a portable workstation. This enabled a quick look at image quality and coverage. Using the Leica Geosystems IPAS software package the GPS data was differentially processed against a base station. After the differential GPS solution was checked and verified the Leica Geosystems IPAS program was used to compute an integrated GPS/IMU navigation solution at one-second intervals. Using the GPS/IMU trajectory computed by the Leica Geosystems IPAS software and the camera calibration, XPro 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. Theresampling removes most aircraft motion and providesepipolar geometry imagery for stereo viewing, automatedaerotriangulation and automated DEM extraction. TheLevel 1 epipolar-resampled and georeferenced imageryusually 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/IMUderived exterior orientations. The aerotriangulation also allowed the introduction of ground control and check points to ensure the accuracy specifications were achieved. Automated aerotriangulation of ADS80 imagery was performed with the Xpro. A digital elevation model (DEM)was required for orthophoto production. DEM was autocorrelated and used to generate the ortho-rectification imagery. The orthorectified imagery was created utilizing Leica Geosystem XPro software. The orthos were mosaiced together using proprietary image database and mosaicing software. The database was edited for seamlines, and other artifacts. The imagery was clipped out of the database into the sheet layout generated based on client use requirements. In the clipping stage, the coordinate system and georeferencing was embedded into the header of the TIFF file. The stereo and orthorectified imagery was QC'ed and delivered on external hard drives.

• Distribution Information

  Distributor:

  Land Information Ontario (LIO), Ministry of Natural Resources Peterborough Ontario, Canada