U.S. Geological Survey Open-File Report 03-245–Version 1.01
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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.
Abstract
Introduction
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
District Chief
U.S. Geological Survey
196 Whitten Road
Augusta, ME 04330
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