DECEMBER 9-12 



Figure 2. — Continued 



(0.55° O- Conductivity readings were also re- 

 corded at each cliange of 1° F. Temperature data 

 were then gi'aphed to determine tlie depths of the 

 epilimnion, thermocline, and liypolimnion. 



Along with Secchi disc readings, air tempera- 

 ture, wind velocity and direction, other atmos- 

 pheric conditions also were recorded routinely at 

 each station. 



Mean volumes of flow from the Snake River into 

 the reservoir and discharges from Brownlee Res- 

 ervoir were computed during each sampling 



period. Mean temperatures of the inflow and out- 

 flow volumes were also computed for each period 

 from thermograph, Whitney tiiermistor, and lab- 

 oratory thermometer records. Table 1 summarizes 

 temjwrature and inflow-outflow computations. 



CURRENT MEASUREMENTS 



Measurement of current velocity and direction 

 with three Savonius-type current meters began in 

 the fall of 1963. The meters were used as continu- 

 ous current recorders at a given depth and loca- 



LIMNOLOGT OF BROWNLEE RESERVOIR 



299 



