Title:

Santee Experimental Forest, Watershed 77: streamflow, water chemistry, water table, weather, and soil moisture data (3rd Edition)

Author(s):

Amatya, Devendra M.; Trettin, Carl C.

Publication Year:

2026

How to Cite:

These data were collected using funding from the U.S. Government and can be used without additional permissions or fees. If you use these data in a publication, presentation, or other research product please use the following citation:

Amatya, Devendra M.; Trettin, Carl C. 2026. Santee Experimental Forest, Watershed 77: streamflow, water chemistry, water table, weather, and soil moisture data. 3rd Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2019-0033-3

Abstract:

This data publication contains streamflow, water chemistry, water table, weather, and soil moisture data measured at the Watershed 77 (WS77) on the Santee Experimental Forest near Cordesville, South Carolina from 1964 to 2024. The major treatments imposed on this watershed over its history have been forest thinning and prescribed fire. WS77 also suffered major damage during Hurricane Hugo in September 1989 (as did the control Watershed 80 [WS80]), which is reflected in the measurement periods. Daily streamflow records are provided from 1963-1981, November 1989-2000, and 2003-2024 as well as 10- or 15-minute streamflow from 2003-2024. Approximately weekly water chemistry samples were collected upstream of the WS77 weir from 1976-1982 and 1989-1994. From 2003-2024 stream water samples were collected during periods of active flow by an automated sampler on a flow-proportional basis and starting in 2006 additional water quality parameters were measured in situ on an approximately weekly basis. Well water levels were monitored manually approximately every two weeks from 1964-1971 (in a network of 24 non-recording wells) and 1992-1995 (in a network of 42 non-recording wells) on WS77. Hourly well water levels were electronically recorded from 2005-2024. Daily precipitation was recorded manually from 1963-1984 at five different gauges near WS77. Daily precipitation was recorded manually at the Met 5 station from 1963-1966 and electronically from 1989-1997. Daily temperatures were recorded at the Met 5 station from 1996-2000. From September 2001 through 2024 hourly air temperature, soil temperature, and rainfall were recorded at the Met 5 station. In 2020 a major new, long-term project was initiated to convert most of the watershed area from an existing loblolly pine to a longleaf pine dominated system. Between 2018 and 2022, 5 soil moisture stations were installed to support this new long-term project. At each station, hourly soil moisture and soil temperature readings were recorded at three different depths within the soil. Hourly soil moisture and temperature data are provided from 2019-2024. Harvesting operations in each of three treatment areas (Regeneration, Group Selection, and Thinning) began in May 2020 and continued, with lengthy delays resulting from wet site conditions, until November 2021. An initial site preparation prescribed burn was conducted on March 13, 2022. Longleaf pine seedlings were planted in February 2023.

Keywords:

climatologyMeteorologyAtmosphere; environment; inlandWaters; Ecology, Ecosystems, & Environment; Hydrology, watersheds, sedimentation; Inventory, Monitoring, & Analysis; forested wetlands; forested watersheds; poorly drained soils; outflow (runoff); water quality; automated sampler; Manta multiprobe; water table; pressure transducer; WL15; WL16; air temperature; soil temperature; precipitation; Santee Experimental Forest; South Carolina; Coastal Plain; Watershed 77

Related publications:

• Amatya, Devendra M.; Trettin, Carl C. 2024. Santee Experimental Forest, Watershed 77: streamflow, water chemistry, water table, and weather data. 2nd Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2019-0033-2
• Amatya, Devendra M.; Trettin, Carl C. 2019. Santee Experimental Forest, Watershed 77: streamflow, water chemistry, water table, and weather data. 1st Edition. Fort Collins, CO: USDA Forest Service, Rocky Mountain Research Station. https://doi.org/10.2737/RDS-2019-0033
• Amatya, Devendra M.; Trettin, Carl C.; Harrison, Charles A.; Arnold, Julie A. 2022. Long-term hydro-meteorology and water quality data from low-gradient catchments of varying scales on the Santee Experimental Forest, South Carolina. Hydrological Processes. e14549. https://doi.org/10.1002/hyp.14549 https://research.fs.usda.gov/treesearch/64248
• More (9 total)

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