Figure 3. Daily variations in relative backscatter and water current speed at the five ADCP deployment sites, Upper Klamath Lake, south-central Oregon, 2005. Diel patterns are derived from an average of 30-minute ADCP measurements between June 21, 2005, and September 12, 2005. The maximum standard error of the estimate of mean relative backscatter as a function of hour in the day and depth in the water column is 0.9 dB, 6.3 dB, 1.2 dB, 1.4 dB, and 0.8 dB for ADCP1, ADCP3, ADCP5, ADCP6, and ADCP7, respectively. The maximum standard error of the estimate of mean horizontal current speed as a function of hour in the day and depth in the water column is 1.7, 5.2, 2.0, 1.5, and 1.7 cm/s for sites ADCP1, ADCP3, ADCP5, ADCP6, and ADCP7, respectively.


First posted March 16, 2011