Tag Archive: GPS

May 13 2013

A Few Good Reads (5/13/13): Drought in California, Catawba River Flooding

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This week: Bad news from the latest California snow survey reading means reservoirs will be drawn even further, the Catawba River overflows its banks in North Carolina, Lake Mead and Lake Powell heading towards their lowest levels ever, a cool Google timelapse of a meandering channel in Peru, and a very good review of the …

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Oct 04 2011

Hydro Survey: GPS? Who Needs That?

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Guest Post by Joe Robinson, Hydro Survey Crew Chief If you have spent some time in the field of modern day surveying, you probably know one of the key limitations with using GPS – Obstructions overhead that might considerably reduce otherwise available satellite reception. GPS currently works by means of line of sight connections between …

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Sep 27 2011

Hydro Survey: The Airboat

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Out of any boats used for hydrographic survey and reconnaissance, from jet boat to cataraft, this is the one that gets the most reactions when it’s sitting in the parking lot: the airboat. If a cataraft allows you to say, “Who needs a boat launch?” then the airboat enables you to ask, “Who needs water?” …

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Jun 30 2011

Hydro Survey: The Setup and Software

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We’ve talked about jet boats and the cataraft for hydro survey. Now let’s dig into the set up and the software. Above is the typical setup with the usual pieces: your positional equipment (not limited to simply GPS), the laptop or simply something that can integrate the position and depth data, the depth sounder, and …

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