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Use of Low-Flow Trend and Transfer-Function Models to Determine Relation of Low Flows to Regional Urbanization and Precipitation, Rahway River Basin, New Jersey, 1940-91

Open-File Report 99-257

Prepared in cooperation with the New Jersey Department of Environmental Protection
By:
, , and

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Abstract

The Rahway River Basin in northern New Jersey has become heavily urbanized. The importance of the Rahway River as a water-supply source for the region led to an investigation of trends in the river's low-flow characteristics over time and their relation to regional urbanization and precipitation. Since 1950, low flows at a stream-gaging station near Springfield, N.J., increasingly have tended to exceed those at a station at Rahway. Polynomial-trend models for three measures of low-flow difference between the two stations during 1940-91 show trends in all three measures, indicating that they have changed significantly in level during the study period. Transfer-function models indicate that differences in low flows between the two gaging stations are significantly related to measures of basin urbanization and regional precipitation. A rough water budget for the inter-gage part of the basin confirms these results.

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Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Use of Low-Flow Trend and Transfer-Function Models to Determine Relation of Low Flows to Regional Urbanization and Precipitation, Rahway River Basin, New Jersey, 1940-91
Series title:
Open-File Report
Series number:
99-257
Edition:
-
Year Published:
2000
Language:
ENGLISH
Publisher:
U.S. Geological Survey
Contributing office(s):
New Jersey Water Science Center
Description:
v, 24 p.
Time Range Start:
1940-01-01
Time Range End:
1991-12-31