Analysis of long-term trends in flow from a Large Spring Complex in northern Florida

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Edited by: Eve L. Kuniansky

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Abstract

Nonparametric regression analysis of historic flow and rainfall data was used to estimate declining flows in a river draining a large spring complex in northern Florida, USA. The analysis indicated that flow declined by an estimated 23 percent from 1900 to 2009. The rate of decline appeared to increase over time, from about 0.8 cubic foot per second per year during the period from 1930-1970, to about 1.1 cubic feet per second per year over the period from 1970-2009. The estimated decline for the period prior to 1980 is consistent with evidence indicating groundwater withdrawals to the east of the study area have diverted groundwater that formerly flowed toward the Ichetucknee River under predevelopment conditions.

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Additional publication details

Publication type Conference Paper
Publication Subtype Conference Paper
Title Analysis of long-term trends in flow from a Large Spring Complex in northern Florida
Volume 2011-5031
Year Published 2011
Language English
Publisher U.S. Geological Survey
Contributing office(s) FLWSC-Tallahassee
Description 7 p.
Larger Work Type Conference Paper
Larger Work Title U.S. Geological Survey Karst Interest Group proceedings
First page 160
Last page 167
Conference Title U.S. Geological Survey Karst Interest Group proceedings
Conference Location Fayetteville, Arkansas
Conference Date April 26-29 2011
Country United States
State Florida
Online Only (Y/N) N
Additional Online Files (Y/N) N