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Cost-effectiveness of the stream-gaging program in Iowa

Water-Resources Investigations Report 84-4171

By:
,

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Abstract

Data uses and funding sources were identified for the 122 surface-water stations (including reservoir, lake, stage only, and miscellaneous stations) operated by the U.S. Geological Survey in Iowa. There are 110 continuous streamflow stations currently being operated in Iowa with an annual budget of $592 ,000. The average standard error of estimation in continuous-streamflow records is 11.4 percent. Under the existing budget, it was shown that this overall degree of accuracy at the 110 continuous streamflow stations could be improved to 10.5 percent if the gaging schedule was optimized. A minimum budget of $543,000 is required to operate the present stream-gaging program in Iowa, with an average standard error of 12.5 percent. The maximum budget analyzed was $1,235,000, which resulted in an average standard error of 4.2 percent. A realistic budget of $656,000 would result in a standard error of 8.4 percent. There are still a few basins with drainage areas greater than 200 square miles that have no continuous streamflow data. Continuous streamflow stations need to be established in these basins as funds become available. Data simulated by using the flow-routing and regression methods for stations in six river basins do not meet the accuracy required for their data use. (USGS)

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Cost-effectiveness of the stream-gaging program in Iowa
Series title:
Water-Resources Investigations Report
Series number:
84-4171
Edition:
-
Year Published:
1984
Language:
ENGLISH
Publisher:
U.S. Geological Survey,
Description:
v, 68 p. :ill., maps ;28 cm.