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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 41o59'27", long
70o44'03", Plymouth County, Hydrologic Unit
01090002, on left bank 100 ft downstream from Elm Street Bridge at
Kingston and 2.8 mi upstream from mouth.
DRAINAGE AREA--15.7 mi2, excludes 4.09 mi2 above outlet of Silver Lake, from which flow is diverted for municipal supply of Brockton, Whitman, and Hanson.
PERIOD OF RECORD--August 1966 to current year.
GAGE--Data Collection Platform with satellite telemeter. Datum of gage is 4.76 ft above sea level (levels by Massachusetts Department of Public Works).
REMARKS--Flow regulated by pond upstream. Flow affected at times by wastage from Silver Lake. Surface flow may be affected by ground water that enters from or moves into adjacent basins. Occasional backwater from tidal surge.
COOPERATION BY--Massachusetts Department of Conservation and Recreation, Office of Water Resources.
Photo of Jones River station at Kingston
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