Estimating Chattahoochee River Tributary Stream Temperatures in the Vicinity of Atlanta, Georgia
Author(s)
Dyar, T. R.
Alhadeff, S. J.
Burke, R. C., III
Lamarre, Paul D.
Olson, Robert W.
Advisor(s)
Editor(s)
Hatcher, Kathryn J.
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Abstract
Recent development of the Georgia
Department of Natural Resources, Environmental
Protection Division (GaEPD) Chattahoochee River
Water Quality Model (GaEPD-RIV1) required hourly
estimates of 47 tributary stream temperatures in the
Atlanta, Ga., vicinity for a sustained period of about six
months. An interagency team consisting of the U.S.
Geological Survey, GaEPD, and Law Environmental,
Inc., engineers devised an "index station" method of
estimating hourly stream temperatures at unmeasured
sites by using data from nearby sites having stream
temperature recorders.
Methods of estimating "Stream Temperature Characteristics in Georgia" (Dyar and Alhadeff, 1997) were
expanded to include calculations of daily (hourly)
variations from selected index stations located nearby
and transferring those variations as estimates to unmeasured sites. To assess the index station method of
estimating stream temperatures at unmeasured sites, 16 of the 47 sites were equipped with stream-temperature
recorders, including the Suwannee Creek site shown in
figure 1 below. The figure shows a comparison of
modeled hourly versus actual recorded stream temperatures. The method assumes similar climate and
unnatural effects occurring at both the index and
unmeasured sites.
Sponsor
Sponsored and Organized by: U.S. Geological Survey, Georgia Department of Natural Resources, Natural Resources Conservation Service, The University of Georgia, Georgia State University, Georgia Institute of Technology
Date
2001-03
Extent
Resource Type
Text
Resource Subtype
Proceedings