The Red River Watershed Management Board (RRWMB) has announced the availability of Quality Level (QL) 1 LiDAR data for the Red River Basin (RRB) of Minnesota.
The RRWMB contracted with The Sanborn Mapping Company Inc. (Sanborn) out of Colorado in 2021 to acquire LiDAR information over 20,034 square miles in Northwest Minnesota. LiDAR data collection began in October 2021 and was completed in early November 2021.
A map of the collection area is included on the next page (see attached PDF). LiDAR data collected by Sanborn was processed and submitted to the International Water Institute (IWI) in Fargo, North Dakota, also contracted with the RRWMB, to conduct quality control.
RRWMB partners and their stakeholders have been eagerly anticipating the roll-out of new LiDAR data. Robert Sip, Executive Director for the RRWMB said, “This was a long process due to the sheer amount of data that had to be quality controlled by the IWI. Over 60 billion data points or roughly 21 terabytes of LiDAR data files were delivered and processed as part of this effort.” More detailed information about project metrics is illustrated in the table below:
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Item – Metric:
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Result:
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Number of Aircraft and Sensors Used
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3 Terrain Mappers (91520, 91555, and 91559)
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Number of Individual Missions
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63 Separate "Lifts"
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Total Square Miles Covered
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20,034 Square Miles (51,888 Square Kilometers)
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Size of Raw Data to Process
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>800 Terabytes (0.8 Petabytes)
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Size of LiDAR Files Delivered
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~21.5 Terabytes
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Number of Individual LAS Files Delivered
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52,771 LAS Tiles (1 Square Kilometer Each)
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Number of Total Project Files Delivered
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960,536 Individual Project Files
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Approximate Number of LAS Points (Project-wide)
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> 60 Billion Points
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Again, to access all the information, see the attached PDF.