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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 414630070014901 MA-BMW 22 BREWSTER, MA
Data Type Begin Date End Date Count
 Daily Data
    Depth to water level, feet below land surface  2001-10-22  2018-09-16  6132 
 Daily Statistics 
    Depth to water level, feet below land surface  2001-10-22  2018-07-09 6062 
 Monthly Statistics 
    Depth to water level, feet below land surface  2001-10  2018-07  
 Annual Statistics 
    Depth to water level, feet below land surface  2002  2018  
 Field groundwater-level measurements 1962-11-29  2018-09-17  626 
 Water-Year Summary 2005  2017  13 
 Revisions  Loading...

Additional Data Sources

Begin Date

End Date

Count
 Groundwater Watch  **offsite** 1962  2018  6688 
USGS 420930072315001 MA-CMW 93
Data Type Begin Date End Date Count
 Field groundwater-level measurements 1965-11-02  1965-11-02  1 
 Revisions  Loading...