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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.


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USGS 01171000 AVERY BROOK NR WHATELY, MA

PROVISIONAL DATA SUBJECT TO REVISION

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Gage--Data Collection Platform with satellite telemeter. Datum of gage is 675 ft above NAVD 1988, estimated from topographic map.
This station managed by the Northborough MA Field Office.

Available Parameters Available Period
  
2020-02-20  2021-12-03
2020-02-20  2021-12-03







 (7)
 

  -- or --

 


 

Summary of all available data for this site
Instantaneous-data availability statement


Discharge, cubic feet per second, [(3)]

Most recent instantaneous value: 4.97 12-03-2021   16:00 EST
Graph of  Discharge, cubic feet per second, [(3)]

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Daily discharge, cubic feet per second -- statistics for Dec 3 based on 1 water years of record more
Most Recent
Instantaneous
Value Dec 3
Mean Min
(2021)
Median Max
(2021)
4.97 9.2 9.24 9.2 9.24


Gage height, feet, [(2)]

Most recent instantaneous value: 4.15 12-03-2021   16:00 EST
Graph of  Gage height, feet, [(2)]

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