Streamflow characteristics at selected sites in southwestern Georgia, southeastern Alabama, and northwestern Florida, near Lake Seminole

Stamey, Timothy C.

doi:10.3133/ofr95455

Cited by 4 publications

(4 citation statements)

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“…Current studies suggest that withdrawal of groundwater resources in the lower FRB has resulted in changes in the potentiometric surface of groundwater in the neighbouring Ochlockonee River Basin due to removal of potential recharge (Jones and Torak, 2006). Following the implementation of intensive irrigation in the 1970s, Stamey (1996) reported reduced inputs to and outputs from Lake Seminole, a man‐made impoundment at the confluence of the Flint and Chattahoochee Rivers. Downstream ecosystems and fishing, shrimping and shellfish industries in the Apalachicola Bay, Florida, depend on upstream inputs of fresh water from the lower FRB to maintain adequate levels of nutrients and salinity as well as flushing flows vital to estuarine and marine function (Elder and Cairnes, 1982; Gillanders and Kingsford, 2002).…”

Section: Discussionmentioning

confidence: 99%

Effects of irrigation withdrawals on streamflows in a karst environment: lower Flint River Basin, Georgia, USA

Rugel

Jackson

Romeis

et al. 2011

Hydrological Processes

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Abstract:Extensive implementation of centre pivot irrigation systems occurred between 1970 and 1980 in the lower Flint River Basin (FRB) of southwestern Georgia, USA. Groundwater within this karstic system is in direct hydraulic connection with regional streams, many of which are incised through the overburden into underlying limestone. We used long-term U.S. Geological Survey gaging station data to evaluate multiple flow metrics of two tributaries (Ichawaynochaway Creek and Spring Creek) in the lower FRB to determine the extent of changes in stream behaviour since irrigation practices intensified. We compared pre-and post-irrigation flow duration curves, 1-, 7-, and 14-day minimum flows, and 8-day (seasonal) and annual baseflow recession slopes, in addition to evaluating regional climate data to determine whether significant differences existed between the pre-and post-irrigation periods. Our results showed significant changes in low-flow durations in the post-irrigation record for both gages, including a decrease by an order of magnitude for 98% exceedance flows at Spring Creek. Both gages indicated significant reductions in 1-, 7-, and 14-day low flows. Eight-day baseflow recession curves (within early summer months) and annual baseflow recession curves became significantly steeper during the post-irrigation period for Ichawaynochaway Creek. We also found that a significant relationship existed between winter and summer minimum flows in both streams in the pre-irrigation period which was disrupted in post-irrigation years. Regional climate data for the study period revealed no significant changes in rainfall totals or frequency of drought; however, there was evidence for a shift in seasonal rainfall patterns.

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Section: Discussionmentioning

confidence: 99%

Effects of irrigation withdrawals on streamflows in a karst environment: lower Flint River Basin, Georgia, USA

Rugel

Jackson

Romeis

et al. 2011

Hydrological Processes

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“…The task was to compute streamflow characteristics, using the compiled data for selected periods, and compare observed changes in flow characteristics of tributary streams, as well as inflow to and outflow from Lake Seminole. This report is an update of the 1996 report (Stamey, 1996).…”

Section: Introductionmentioning

confidence: 98%

2010 update—Streamflow characteristics at selected sites in southwestern Georgia, southeastern Alabama, and northwestern Florida, near Lake Seminole

Stamey¹

2011

Open-File Report

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Since the first edition of this report was published in 1996, continuous streamflow data have been recorded in the tri-state area of Alabama, Georgia, and Florida, near Lake Seminole. Several notable floods and severe droughts have occurred during this additional 16-year period that have sparked the need to include these additional recorded data into a comprehensive report for use by local, State, and Federal agencies. Flow durations, low-flow, and mean-flow analyses of daily mean discharges were compiled and analyzed for 12 streamflow stations during three selected periods that included pre-Lake Seminole (1929-53), post-Lake Seminole and pre-irrigation (1958-70), and post-Lake Seminole and post-irrigation (1976-2010), as well as for specified partial periods. The analyses yielded information on the variability of inflow to and outflow from Lake Seminole and the variability of flows in area streams. Streamflow characteristics for Ichawaynochaway Creek at

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“…These 7Q10-flow profiles incorporated low-flow data from previous USGS reports. Stamey (1996) presented low-flow characteristics for 12 selected streamgages in southwestern Georgia, southeastern Alabama, and northwestern Florida. Stamey (2001) presented low-flow characteristics for 4 selected streamgages located in the Fort Gordon military base in Georgia.…”

Section: Previous Studiesmentioning

confidence: 99%

“…Stamey (2001) presented low-flow characteristics for 4 selected streamgages located in the Fort Gordon military base in Georgia. Lastly, Stamey (2011) presented an update of the Stamey (1996) study. Agency, 2007).…”

Section: Previous Studiesmentioning

confidence: 99%

Streamflow characteristics at selected sites in southwestern Georgia, southeastern Alabama, and northwestern Florida, near Lake Seminole

Cited by 4 publications

References 0 publications

Effects of irrigation withdrawals on streamflows in a karst environment: lower Flint River Basin, Georgia, USA

Effects of irrigation withdrawals on streamflows in a karst environment: lower Flint River Basin, Georgia, USA

2010 update—Streamflow characteristics at selected sites in southwestern Georgia, southeastern Alabama, and northwestern Florida, near Lake Seminole

Selected low-flow frequency statistics for continuous-record streamgages in Georgia, 2013

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Streamflow characteristics at selected sites in southwestern Georgia, southeastern Alabama, and northwestern Florida, near Lake Seminole

Cited by 4 publications

References 0 publications

Effects of irrigation withdrawals on streamflows in a karst environment: lower Flint River Basin, Georgia, USA

Effects of irrigation withdrawals on streamflows in a karst environment: lower Flint River Basin, Georgia, USA

2010 update&mdash;Streamflow characteristics at selected sites in southwestern Georgia, southeastern Alabama, and northwestern Florida, near Lake Seminole

Selected low-flow frequency statistics for continuous-record streamgages in Georgia, 2013

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2010 update—Streamflow characteristics at selected sites in southwestern Georgia, southeastern Alabama, and northwestern Florida, near Lake Seminole