Site Name: Coweeta LTER
State, Country, ETC:
USGS Quad Name (if applicable): Prentiss
POC Name: Ned Gardiner, GIS Coordinator
POC Address:
POC Phone: 706-542-5691
POC FAX: 706-542-4819
POC E-mail: gisadm@landscape.ecology.uga.edu
POC Name:
POC Address: Coweeta Hydrological Laboratory;
POC Phone: 828-525-2128
x127
POC FAX: 828-369-6788
POC E-mail: kloeppel@coweeta.ecology.uga.edu
We request that our GIS/remote sensing data manager (Gardiner) and site manager (Kloeppel) be included in GFL correspondence regarding this request.
For a Circular Site or Point: (note: a site with a nine nautical mile diameter is considered a point)
Diameter of Circular Site in Nautical Miles: 1.5
Center Coordinates:
Latitude in deg/min/sec: 35 02 44 N
Longitude in deg/min/sec: 83 27 09 W
Xmin: -83.478
Ymin: 35.02
Xmax: -83.422
Ymax: 35.074
Elevation of Center Point in Meters: 900
A map showing geological
formations and a second map showing land cover as of
Frequency of Collection:
Specified below.
When (time of day or season or
whatever) should data be collected?
Specified below.
Resolution needed from data
(or scale needed):
Specified below.
What is the impact of not
collecting the data when requested?
Some modeling and
extrapolation methods impossible without requested imagery, but research will
continue based on established protocols and available data.
Describe the things or phenomena to be monitored and the purpose of the monitoring. Include information about the duration needed for monitoring to be effective.
High Resolution digital
elevation data (1m). Single image
sufficient.
FLIR, RADAR, or other data
from which soil moisture could be estimated on a seasonal basis. Post-1990.
Reflectance-
Leaf
Area Index. Summer image. Post-1995.
1m footprint or better with 1m vertical resolution.
What ecosystems are present at the site?
Are there management issues associated with the site?
Is the site designated for special management or use (e.g. long term studies, specially reserved regions)?
The site has been managed
as a long term hydrological laboratory by the
Have previous monitoring activities been done at this site? If so, are data available in digital form?
We have extensive data
available from our long term data collection activities. We arechive data and descriptive information
on our web page at http://coweeta.ecology.uga.edu
Describe any special characteristics of the site or the things or phenomena that are to be monitored (information that might help determine how it might be useful to monitor the things or phenomena at the site).
This site is the locus of
numerous biophysical studies. (1) We
continue to examine hydrologic responses to vegetation and climate. In turn, this work has important implications
for aquatic ecosystem structure and function.
Long term data continue to be collected regarding the population
persistence and microhabitat use of territorial fish and benthic
invertebrates. Other long term stream
studies focus on nutrient dynamics in forested catchments, especially the role
and fate of carbon and nitrogen. This
work requires high resolution digital elevation models and catchment-scale
estimates of nutrient export. The latter
are obtained from forest ecosystem models that would benefit by high resolution
leaf foliar nutrient data on a seasonal basis.
(2) We examine vegetation responses (short and long term) to soil
moisture regimes imposed by landscape position.
Plots are located throughout the basin to quantify and monitor
understory and overstory plant demography.
This work requires high resolution Digital Elevation data and soil
moisture (e.g. SLR, FLIR, or other soil moisture data sets). (3) Our studies of vegetation responses to
light regime and nutrient supply would benefit by high resolution reflectance
or leaf area index data sets that would allow us to estimate light gaps (current
and over the past 50 years). (4) Permanent
plots have been established to examine ecophysiological differences among
species and among groups of species (evergreen vs. deciduous) with respect to
evapotranspiration. In situ sap flow
measurements will allow us to quantify the amount of water actively transpired
by trees. We would like current data on
leaf foliar nutrient concentrations to explore the nutrient requirements of
forest trees and how nutrient status relates to transpiration rates. (5)
Permanent biomass and productivity plots are used for a variety of
purposes. We would like to have access
to long term (10-year interval as far back as possible), 1-m resolution land
cover
(Visible and NIR
reflectance) imagery for the basin. (6)
We would like to use these images to calibrate and extrapolate our network of
gas exchange measurements to estimate basin-scale trace gas flux.