Historical Dates of Ice-Affected Flows for 18 Rivers in New England


U.S. Geological Survey Open-File Report 03-245–Version 1.01


by G.A. Hodgkins, J.M. Caldwell, and R.W. Dudley


This report is available as a pdf.


Historical dates of ice-affected flows for 18 rivers in New England were compiled and are presented in this report. The length of this record for the rivers ranges from 48 to 71 years, with an average of 62 years. The minimum number of days of ice-affected flow in a water year (October 1 to September 30) ranged from zero on three rivers in south-coastal Maine and coastal New Hampshire to 110 on the Allagash River in northern Maine. The maximum number of days of ice-affected flow in a water year ranged from 106 on the Royal River in south-coastal Maine to 171 on the Allagash River in northern Maine. Six streamflow-< gaging stations in Maine, New Hampshire, and Vermont had their latest days of ice-affected flow in the spring of 1939.




Effect of ice formation on the computation of river flows

Consistency of determination of days of ice-affected flow over time

Historical dates of ice-affected flow

Historical extremes of days of ice-affected flow

References cited

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Errata Sheet (March 3, 2005)


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