CWT-LTER Data Set Summary

Accession: 3070 CWT Research Theme: Disturbance and Land Use
Contributors: Jackson R. Webster, Fred Benfield, Katherine Elliott
Title: Changes in water temperature in streams with progressive hemlock mortality at 8 Coweeta Hydrologic Laboratory study sites from 2004 to 2013
Abstract: The purpose of this study was to document changes in water temperature in 8 streams in areas affected by hemlock mortaity. Beginning in August 2004, one temperature logger was submerged at the downstream end of each of 8 small stream sites. Temperature was recorded a minimum of every 4 h. This study was conducted at Coweeta Hydrologic Laboratory, Otto, North Carolina. Stream sites were located on 1st and 2nd order streams reaches affected by hemlock death. Six sites were located in areas that have not been logged since the area became National Forest in the late 1920s and where streams passed through or were adjacent to permanent vegetation plots in which trees were measured in 1934-35, 1969-73 and 1988-93 (Elliott and Swank, 2008). Also included are data from two sites on WS 7 (Big Hurricane Branch), which was logged in 1977.
Key Words: aquatic, Coweeta LTER, forest disturbance, Hemlock Wooly Adelgid, hydrography, logging, Otto, North Carolina, stream, tree mortality, water temperature
LTER Core Area: Disturbance Patterns
CWT Themes: Disturbance and Land Use, Hydrography, Landscape Ecology, Water Quality and Quantity
Study Type: Coweeta Water Quality and Quantity Study
Study Period: 19-Aug-2004 to 09-Jul-2013
Site References:
ULTRB -- Upper Little Tennessee River Basin, North Carolina, USA
WS7 -- Watershed 7, Macon County, North Carolina, USA
CWTBASIN -- Coweeta Basin, Macon County, North Carolina, USA
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Data Table: CWT_HYD_3070_Temperature (Main data table for data set CWT_HYD_3070, 25976)

Access: Public (released 09-Jul-2015)

Metadata: Text (ESA FLED), Basic EML, Complete EML

Data Formats: Spreadsheet CSV Text Format, EML-described Text Format, Tab-delimited Text Report with Statistical Summary, GCE Data Toolbox Format, GCE Data Toolbox Format, Standard MATLAB Variables Format

Column List:

Column Name Units Type Description (hide)
1 SiteID none alphanumeric string SiteID
2 UTM_Zone none alphanumeric string UTM_Zone
3 UTM_Easting m floating-point UTM_Easting
4 UTM_Northing m floating-point UTM_Northing
5 Date dd-mmm-yyyy alphanumeric string Date of Measurement
6 Temperature °C floating-point Integrated Daily Average of Water Temperature
7 Flag_Temperature none alphanumeric string QA/QC flags for Integrated Daily Average of Water Temperature (flagging criteria, where "x" is Temperature: )