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Water level measurements collected in West Falmouth Harbor, MA, 2016: U.S. Geological Survey data release

August 21, 2017

Water-level gauges were deployed at two sites in West Falmouth Harbor between May and October 2016. Two sequential deployments were required to provide measurements for the entire period. One gauge was mounted under the town-owned West Falmouth boat dock and the other on the private Associates dock near the mouth of the Harbor. Each gauge supported two pressure sensors mounted in a stilling well to damp wave motions. The stilling wells were 4-inch diameter PVC tubes drilled with several 1/4-inch holes above and below water level. The upper sensor at each site was intended to remain above the water surface to measure atmospheric pressure; the lower sensor was intended to remain constantly submerged to measure tides and surge. The upper sensor at the boat dock was mounted too low, and was often submerged at high tide, so data from the upper sensor at the Associates dock was used to make atmospheric pressure corrections for both sites.