Identifying Soil and Transport Properties Using a Model
27
coefficients of variation of water falling on the field (3.0 and 0.5, respectively)
which did not account for redistribution on the surface and runoff or evaporation.
Model-computed concentration profiles compare favorably to the bromide data at
both sampling dates (see Figure 3).
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Fig. 4. Mean concentrations profiles of TBA, A TR and BRM to 30 cm depth at three times
1=10, 32, and 60 days (50, 200, and 500 mm applied water) after chemicals application.
Symbols field data; curves best fit analytic results; x, --------- 1=10 days; 8,
______ (=32 days; +,
, (=60 days; inset simulated concentration
data to 120 cm depth.