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Canadian Spatial Data Store US Spatial Data Store Imagery Coverage LiDAR Coverage


Unlike an uncorrected aerial photograph, an orthophotograph can be used to measure true distances, because it is an accurate representation of the earth's surface, having been adjusted for topographic relief, lens distortion, and camera tilt.


For determining elevations, LiDAR ('Light Detection and Ranging' or 'Laser Imaging Detection and Ranging') is more accurate and cost-effective than other methods of photogrammetric compilation. A laser beam from an aircraft platform scans the ground perpendicular to the line of flight, and the laser returns, or reflections, from the ground and foliage are processed to determine the ground elevations. As LiDAR penetrates tree cover, it provides the most accurate ground definition possible.

Imagery Order imagery or LiDAR by shapefile

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Using the Spatial Data Store is a quick and easy way to get the data you need, how you need it... fast. Once you have selected your area, defined the parameters and submitted your order, Valtus processes the order according to your specifications and delivers it to our FTP site for retrieval... all within minutes.

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