Low-flow frequency and flow duration of selected South Carolina streams in the Saluda, Congaree, and Edisto River basins through March 2009

Feaster, Toby D.; Guimaraes, Wladmir B.

doi:10.3133/ofr20121253

Cited by 4 publications

(12 citation statements)

References 6 publications

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“…The annual minimum 7-day average streamflow with a 10-year recurrence interval (7Q10) for station 02173000 was found to decline from 6.0 cms (Bloxham, 1979) to 5.7 cms (Zalants, 1991) and finally to 5.0 cms (Feaster and Guimaraes, 2012). The analysis presented above calculated the 7Q10 at 4.4 cms, which was -10.9% different from the most recent estimate.…”

Section: Discussionmentioning

confidence: 63%

“…This streamflow record was used to evaluate the flow alterations associated with human perturbations, such as water withdrawals or global climate change. Station 02173000 is in hydrologic unit code 03050204, the gage datum is 47.45 meters above NGVD29, and the drainage area is 1,865 km 2 (Feaster and Guimaraes, 2012). The IHA software was used to analyze the entire record of hydrologic data as ecologically relevant parameters and to categorize flows as large floods, small floods, high flow pulses, low flows, or extreme low flows (TNC, 2009).…”

Section: Methodsmentioning

confidence: 99%

“…The South Fork Edisto River begins in the upper Coastal Plain Physiographic Province east of Edgefield, SC, and converges with the North Fork Edisto River near the town of Branchville, SC, to form the Edisto River. The river continues south and east through the lower Coastal Plain Physiographic Province and joins the Atlantic Ocean at Edisto Island, south of Charleston, SC (Feaster and Guimaraes, 2012).…”

Section: Project Description Backgroundmentioning

confidence: 99%

“…Differing approaches are used to evaluate changes in hydrologic conditions. Many of these approaches are evaluated and discussed by Gao et al (2009). Shiau and Wu (2004) compared flow conditions before and after weir construction using the parameters generated by the Indicators of Hydrologic Alteration (IHA), with an approach developed by The Nature Conservancy (Richter et.…”

Section: Related Workmentioning

confidence: 99%

“…Marshall (1993) completed an analysis of the single-mass curves of precipitation and streamflow for USGS station 02173000 during the period 1939 to 1990, indicating that changes in streamflow were the result of changes in precipitation. Feaster and Guimaraes (2012) compiled previously published values for low-flow frequency and flow duration for continuous-record stream gaging stations including USGS station 02173000 and other stations in the Saluda, Congaree, and Edisto River basins. The annual minimum 7-day average streamflow with a 10year recurrence interval (7Q10) for station 02173000 was found to decrease during the 1970-2012 period from 6.0 cms (Bloxham, 1979) to 5.7 cms (Zalants, 1991) and finally to 5.0 cms (Feaster and Guimaraes, 2012).…”

Section: Related Workmentioning

confidence: 99%

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Long-term and Two-period Analysis of Hydrologic Conditions of the South Edisto River

Berzinis¹

2017

JSCWR

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The U.S. Geological Survey (USGS) long-term daily streamflow record at station 02173000 in Bamberg County, South Carolina on the South Fork Edisto River (Latitude 33°23’35”, Longitude 81°08’00” NAD27) spans from 1932 to 2015 and was used for this study. The Nature Conservancy’s Indicators of Hydrologic Alteration (IHA) software was used to analyze the entire record of hydrologic data as ecologically relevant parameters and to categorize the flows. A two-period analysis was conducted to evaluate whether a significant difference could be observed in historic flow data from 1932–1985 (period one) compared to 1986–2015 (period two). An extreme low flow was defined as an initial low flow below 10% of daily flows for the period. Over the entire 76-year period of record, 51 years had at least one occurrence of extreme low flows. A median of 4 days per year had occurrences of extreme flows in period one in contrast to a median of 60 days per year during period two. Annual precipitation totals were not correlated with the number of days per year with extreme low flows. The two-period analysis showed significant differences between period one and period two for monthly mean flow for February, April, May, and August, as well as for 1-day and 30-day minima and maxima values. The analysis calculated the 7Q10 (the lowest stream flow for seven consecutive days that would be expected to occur once in ten years) at 4.4 cubic meters per second (cms), which was -10.9% different from the most recently published estimate. Results presented in this study have shown that spring and summer flows in the South Fork Edisto are statistically significantly lower in period two compared to period one.

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Section: Discussionmentioning

confidence: 63%

Section: Methodsmentioning

confidence: 99%

Section: Project Description Backgroundmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

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Long-term and Two-period Analysis of Hydrologic Conditions of the South Edisto River

Berzinis¹

2017

JSCWR

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Low-flow frequency and flow duration of selected South Carolina streams in the Catawba-Wateree and Santee River Basins through March 2012

Feaster¹,

Guimaraes²

2014

Open-File Report

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Part of the mission of both the South Carolina Department of Health and Environmental Control and the South Carolina Department of Natural Resources is to protect and preserve South Carolina's water resources. Doing so requires an ongoing understanding of streamflow characteristics of the rivers and streams in South Carolina. A particular need is information concerning the low-flow characteristics of streams, which is especially important for effectively managing the State's water resources during critical flow periods, such as during the historic droughts that South Carolina has experienced in the past few decades.

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Low-flow frequency and flow duration of selected South Carolina streams in the Saluda, Congaree, and Edisto River basins through March 2009

Abstract: Streamgaging stations for which record was augmented, index streamgaging stations, additional climatic years of record, and correlation coefficients for gaging stations where record was augmented using MOVE.

Cited by 4 publications

References 6 publications

Long-term and Two-period Analysis of Hydrologic Conditions of the South Edisto River

Long-term and Two-period Analysis of Hydrologic Conditions of the South Edisto River

Low-flow frequency and flow duration of selected South Carolina streams in the Catawba-Wateree and Santee River Basins through March 2012

Low-flow frequency and flow duration of selected South Carolina streams in the Savannah and Salkehatchie River Basins through March 2014

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