On February 26, Nick Stasulis and Charlie Culbertson visited USGS station 01054200 Wild River at Gilead, Maine to make a streamflow measurement through the ice. For these measurements, 20-30 holes are drilled through the ice and a current meter (the spinning yellow cups) is used to measure velocity. River depths and distance across the channel are also measured.
Ice Flow Sampling
Detailed Description
USGS Scientist lowering a current meter into an Ice Bore Hole from the USGS "Under The Ice" video linked
Sources/Usage
Public Domain.