68 M.C. Miller etal. 



TA BLE 3-9 Evaporation Pan Data from Barrow, A laska, 1971 to 1973 



*Site 2 data are from Weller and Holmgren (unpublished data). 



TABLE 3-10 The Calculated (Precipitation Minus Evaporation) and the 

 Measured Water Level Loss in Pond B for July and August 

 1971-1973* 



1971 1972 1973 



Evaporation (Table 3-9) -14.6 -18.1 -11.3 



Precipitation (Table 3-2) 3.4 3.1 8.3 



Calculated water loss -11.2 -15.0 -3.0 



Measured water loss (Figure 3-8) -4.0 -11.0 



*Data expressed in cm. 



TABLE 3- 1 1 Water Budget for Pond B, June through August of 1972 and 

 1973 



1972 1973 



cm cm 



Input 



a. Snow on pond at start of melt (Table 3-8) 6.9 1 1.6 



b. Summer precipitation (Table 3-2) 3.2 10.3 



c. Extra water to fill dead storage (Figure 3-8) minus 



amount of snow on pond ("a") 1.8 - 5.3 



d. Overfill of pond from drainage basin (Table 3-8) 



(equals runoff) 5.7 5.9 



Output 



e. Runoff (Table 3-8) 



f. Evaporation (Table 3-9) 



Balance (Input-Output) 



