Santee Experimental Forest, Watershed 78 Daily Mean Flow Data, 1964-1976

Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: Amatya, Devendra M. and Trettin, Carl C.
Publication_Date: 2012
Title:
Santee Experimental Forest, Watershed 78 Daily Mean Flow Data, 1964-1976
Geospatial_Data_Presentation_Form: database
Description:
Abstract:
This data product contains daily mean flow rates (liters per second) measured at the Watershed 78 gauging station on the Santee Experimental Forest near Huger, SC from 1964 to 1976. Watershed 78, also known as the Turkey Creek Watershed, is a 5240 ha (based on a 2011 LiDAR-based DEM with field verification) third-order watershed that was established in 1964 on and adjacent to the Santee Experimental Forest. Elevation ranges from 2 to 14 meters above sea level, and average watershed slope is 3%. The stream channel is approximately 11,400 meters long.

The predominant forest cover types on Watershed 78 are pine and mixed hardwoods. About 10 % of the watershed is covered by wetlands, comprising bottomland hardwoods and wet pine flats. The major treatments imposed on the watershed over its history have been clearcut and single tree selection harvest, forest thinning and prescribed fire. Watershed 78 also suffered major damage during Hurricane Hugo in September 1989.
Purpose:
The purpose of Watershed 78 when established in 1964 was to expand the scale at which research on the effects of watershed size on precipitation-runoff relationships could be conducted on the Santee Experimental Forest.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1964
Ending_Date: 1976
Currentness_Reference:
ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Description_of_Geographic_Extent:
The geographic area covered by the dataset is that defined by the boundary of Watershed 78.
Bounding_Coordinates:
West_Bounding_Coordinate: -79.78153
East_Bounding_Coordinate: -79.76300
North_Bounding_Coordinate: 33.15007
South_Bounding_Coordinate: 33.13284
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Forested wetlands
Theme_Keyword: Poorly drained soils
Theme_Keyword: Outflow (runoff)
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: South Carolina
Place_Keyword: Coastal Plain
Place_Keyword: Santee Experimental Forest
Place_Keyword: Francis Marion National Forest
Place_Keyword: Watershed 78
Place_Keyword: Turkey Creek Watershed
Access_Constraints: None
Use_Constraints:
These data were collected by USDA Forest Service researchers. In order to use the data in a publication, presentation or other research product you must agree to acknowledge its source. Please use the reference below when citing this work:

(Data name) courtesy of the USDA Forest Service Center for Forested Wetlands Research.

The following statement may be added after an acknowledgement or credit:

The USDA Forest Service Center for Forested Wetlands Research homepage is http://www.srs.fs.usda.gov/charleston/.
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Stage was measured at 15-minute intervals using an ADR device accurate to the nearest 0.01 foot. Daily mean flow values were calculated by translating the ADR tapes to obtain 15-minute stage values, which were used with stage-discharge relationship equations for the gaging site to compute the corresponding 15-minute flow rates and then averaging these rates to get the daily mean flow rates. A staff gauge was mounted on the face of the blockhouse to allow direct comparison of stage data to manual readings.
Logical_Consistency_Report:
Visual inspection and comparison with flow data from other SEF stations (as well as daily rainfall data) were used to expose anomalous data.
Completeness_Report:
Automated stage measurements began on 2/26/64 at this station and were discontinued on 11/1/76.
Lineage:
Methodology:
Methodology_Type: Field
Methodology_Description:
In 1964 the Forest Service constructed a gauging station on top of an old railroad tramway dam at the Rock Hole site along Turkey Creek (which was about 800 m downstream from the currently established site on Highway 41 near Huger, SC). Stage data were recorded on tapes at 15-minute intervals by analog-to-digital water level recording (ADR) equipment.

Rating curves for the station were developed using four different channel locations (two positions in the large break in the dam for high flows, and two small downstream channels for low flows) and a Price current meter and wading rod.
Process_Step:
Process_Description:
The ADR tape data were read (picked by hand or translated to ASCII code using a photoelectric reader) and 15-minute stage values were converted to the corresponding flow values using stage-discharge equations for the weir in a Fortran program. Daily mean flow rates were generated by averaging the 15-minute flow rates.
Process_Date: Unknown
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Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
Variables included in the dataset WS78_historical_data_rev2.xlsx:

Location = watershed name (WS78 = Watershed 78);
Instr_ID = gauging station name (Weir78 = water level recorder used in conjunction with WS78 gauging station);
Date_ = date associated with stage data (format MM/DD/YYYY); and
Dailyflow_ = daily mean flow rate, in L/sec.

All missing data were originally assigned the value "-9999"; during database development this code was changed to "null"
Entity_and_Attribute_Detail_Citation:
None
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Metadata_Reference_Information:
Metadata_Date: 20110606
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA Forest Service, Southern Research Station, Center for Forested Wetlands Research
Contact_Person: Andy Harrison
Contact_Position: Hydrology Technician
Contact_Address:
Address_Type: mailing and physical
Address: 3734 Hwy 402
City: Cordesville
State_or_Province: SC
Postal_Code: 29434
Country: USA
Contact_Voice_Telephone: 843 336-5603
Metadata_Standard_Name: FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001.1-1999
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