Year 2000, 15 minute readings of water column depth in the upper Parker River at Middle Road (Thurlow's Bridge), Byfield, MA. Middle Road is located 18.5 km up the estuary from the 0 km reference at the mouth of Plum Island Sound. Water depths are relative to the sonde pressure transducer and are not associated with a datum.
Measurements are made using a YSI 6600 water quality sonde with internal datalogging capabilities. YSI Sonde water level sensor consists of a vented level depth sensor (stainless steel strain gauge).
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Version 04, 25Jan2010, keyword update
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