A quick post to demonstrate the precision of Lowrance’s internal WAAS corrected GPS antennae is in a variety of open water environments. Docks? Boat lifts? Overhanging trees? No problem. WAAS correction in North America is explained here. Have a look at a couple examples in ciBioBase:
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| GPS Track from a Lowrance HDS on Newport Bay, California overlain onto a bathymetry map created by automated processing of the Lowrance .sl2 log file by ciBioBase. This trip was used for water volume calculations, bathymetry, and vegetation mapping |
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| GPS tracks and ciBioBase derived bathymetry map in a 3-acre pond in a wooded valley in a metropolitan area of Minnesota, an example of retention pond volume monitoring. |
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GPS tracks and ciBioBase derived contour map of a 3-acre pond in Illinois for water
volume and aquatic vegetation analysis |
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| GPS tracks around docks and boat lifts and ciBioBase derived contour map on Grand Lake O the Cherokees near Tulsa Oklahoma. The satellite even shows data collection in an area where a boat can be moored next to the dock. That’s close! |
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