The Coweeta LTER uses the GCE LTER Data Toolbox and the Mathworks® Matlab computing environment to maintain a near-real-time sensor network for stations both within the Coweeta Hydrologic Laboratory and regionally within southern Appalachia. Links to these data sets are available below. GIS data and information can be found here in our GIS portal. For most of the streaming sensor stations, data from previous years can be found within the data catalog under the associated dataset ids listed in the sections below.
Soil Moisture, Soil Temperature, and Air Temperature Measurements from Sites Within the Coweeta Basin
Soil moisture is measured at sites within the Coweeta Basin across a range of elevations and watersheds. At each station, soil moisture is measured from depths of 0 -30 cm and 30-60 cm below the mineral soil surface. Soil temperature is measured at various depths along with air temperature measurements. At select stations, relative humidity and photosynthetically active radiation are measured. All measurements are taken and recorded at 5 minute intervals. Associated datasets: 1040 Associated GIS files.
Soil Moisture, Soil Temperature, and Air Temperature Measurements from Southern Appalachia Regional Sites
Regional southern Appalachia soil moisture sites were established to compare measurements at various elevation, climate, and spatial scales. At each station, soil moisture is measured from depths of 0-30 cm and 30-60 cm below the mineral soil surface. Soil temperature is measured at various depths along with air temperature measurements. At select stations, relative humidity is also measured. All measurements are taken and recorded at either 5 minute intervals, or every 60 seconds with hourly minimum, maximum, and average values recorded. Associated datasets: 1300 4038 Associated GIS files.
Microclimate Measurements from the Terrestrial Gradient Sites
The terrestrial gradient study at Coweeta compares vegetation, soils, and understory microclimate of five sites: 118 low elevation (782 m) pine-oak, 218 low elevation (795 m) cove hardwood, 318 low elevation (865 m) mixed oak, 427 high elevation (1001 m) mixed oak, 527 high elevation (1347 m) northern hardwood. Understory microclimate stations were installed in representative locations at the downslope margin of each 20 x 40 m gradient plot (within the 80 x 80 m plot). At each location, soil water content is measured from 0 to 30 cm and from 30 to 60 cm at both an upper and lower plot. Soil temperature is measured at 5, 20, and 50 cm below the surface, while air temeprature is measured at 1 meter above the surface. Associated datasets: 1013 Associated GIS files.
Microclimate measurements from the Forest Gap Sites
Ten artificial Forest Gap Sites were created in March 2002 at Coweeta, following two years of pretreatment data collection. From 2000-2014 manual soil moisture measurements were taken and results can be found in dataset: 1113. In 2015, dataloggers were installed at each Forest Gap Site to continuously measure soil moisture, soil temperature, and at cetain gaps, air temperature. Measurements are taken every 60 seconds with hourly minimum, maximum, and average values recorded. In 2019, sites A to I were decomissioned and their data can be found in dataset 1114 . Associated datasets: 1113 1114 Associated GIS files.
Climate Measurements from the Southern Appalachia and Piedmont Regions
These weather stations provide climate based measurements from locations near ongoing Coweeta LTER research with most beyond the immediate boundaries of the Coweeta Hydrologic Laboratory. The Coweeta LTER maintains a high density of sites within the Upper Little Tennessee drainage as well as sites along broad-scale elevational and latitude gradients within and around the Southern Appalachia and Piedmont regions. Measurements are combinations of the following: air temperature, relative humidity, wind speed and direction, rainfall, and solar and photosynthetically available radiation. Measurements are taken every 60 seconds and output hourly for minimum, maximum, and average values. Hourly and floating 24 hour rainfall totals are calculated. The online streaming data covers only the current calendar year. Full station datasets through the previous years can be found in the data catalog. Associated datasets: 4100 4101 4102 4103 4104 4105 4106 4107 Associated GIS files.
Discharge, Water Level, and Water Temperature Measurements from Locations within the Upper Little Tennessee River Basin
These sites contain water pressure and water temperature measurements using fully compensated pressure transducers. Measurements are taken every 60 seconds with average, minimum, and maximum values saved hourly to the output table. Water level is calculated using the hourly average water pressure and saved to the data table. Average water temperature and water level are displayed in plots arrayed by month. Associated GIS files.
USGS Hydrologic Data
USGS hydrologic data is harvested weekly from six stream locations located in proximity to the Coweeta Hydrologic Laboratory in western North Carolina. Parameters retrieved include daily maximum discharge, daily minimum discharge, daily mean discharge, daily maximum gage height, daily minimum gauge height and daily mean gauge height.