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Scientific Investigations Report 2013–5014


Evapotranspiration from Wetland and Open-Water Sites at Upper Klamath Lake, Oregon, 2008–2010


Table 4. Percentage of time eddy covariance sensors operating (%TimeEC), percentage of time all energy-balance sensors operating 
(%TimeALL), energy-balance ratio (EBR), root-mean-squared error between 30-minute available energy and adjusted turbulent flux 
(RMSE), and coefficient of determination (r 2) of 30-minute, daily, and biweekly means of available energy and turbulent flux. 


[Only data collected when all energy-balance sensors functioned correctly were used to compute 30-minute r 2, whereas daily and biweekly r 2 values also include gap-filled data. Abbreviation: W m -2 , watts per square meter]


Site %TimeEC %TimeALL EBR

RMSE
(W m-2)

30-minute r  2 Daily r  2 Biweekly r  2 
Bulrush 84.2 63.0 0.730 71.9 0.878 0.928 0.973
Mixed 84.4 70.8 0.781 63.7 0.905 0.959 0.981

First posted March 4, 2013

For additional information contact:
Director, Oregon Water Science Center
U.S. Geological Survey
2130 SW 5th Avenue
Portland, Oregon 97201
http://or.water.usgs.gov

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