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ICE EFFECTS ON STREAMFLOW
The formation of ice on rivers can cause discharge values to appear unusually high. Display of these erroneous discharge data may result in improper assessment of flow conditions and misuse of the data. For this reason, display of discharge values for streams significantly affected by ice may be disabled from view. Display of discharge data will resume when ice conditions are no longer present. Discharge values for streams minimally affected by ice will continue to be displayed. Flows for streams with these conditions appear to increase during the night and decrease to near-base-line conditions around midday. To estimate the correct discharge for these streams, use the flow rate that corresponds to the bottom of the discharge curve, rather than the peak that corresponds to the top of the curve. Note that this method of estimation is possible only when no surface runoff is occurring. Daily mean discharges for periods of both significant and minimal ice-effect will be estimated and published in the Annual Water-Data Report for the water year in which they occurred.
LOCATION--Lat 41° 41’24", long 71°
33’59", Kent County, Hydrologic Unit 01090004, on right bank
150 ft downsteam from highway bridge at Washington and 0.9 mi upstream
from outlet of Tiogue Lake.
DRAINAGE AREA--62.8 mi2.
PERIOD OF RECORD--Discharge: October 1940 to current year.
Water-quality records: Water years 1955–1956, 1963.
GAGE--Data Collection Platform with satellite telemeter. Datum of gage is 217.76 ft above sea level.
REMARKS--Flow regulated by Flat River Reservoir 2 mi upstream, usable capacity, 250,000,000 ft3, and smaller reservoirs. Prior to May 1972, diversion from Carr Pond for municipal supply of Coventry, Warwick, and West Warwick. Satellite gage-height telemeter at station.
COOPERATION BY--Rhode Island Water Resources Board
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Value Feb 21