Verifies that actual evapotranspiration and interception (AETI) equals the
sum of its constituent components: soil evaporation (E), crop transpiration (T),
and rainfall interception (I), such that AETI = E + T + I within a given tolerance.
Usage
wapor_audit_etlook_mass_balance(aeti, e, t, i, tolerance = 1e-04)
Arguments
- aeti
SpatRaster or numeric. Actual evapotranspiration and interception.
- e
SpatRaster or numeric. Soil evaporation.
- t
SpatRaster or numeric. Canopy transpiration.
- i
SpatRaster or numeric. Canopy interception.
- tolerance
Numeric. Maximum allowable absolute discrepancy (default 1e-4).
Value
A list containing:
- is_conserved
Logical indicating whether the mass balance is satisfied within tolerance everywhere.
- max_absolute_error
Maximum absolute error observed.
- mean_absolute_error
Mean absolute error observed.
- discrepancy
Numeric or SpatRaster of residual discrepancies (AETI - (E + T + I)).
References
Bastiaanssen, W. G. M., Menenti, M., Feddes, R. A., & Holtslag, A. A. M. (1998).
A remote sensing surface energy balance algorithm for land (SEBAL).
Formulation. Journal of Hydrology, 212-213, 198-212.
Examples
wapor_audit_etlook_mass_balance(aeti = 100, e = 30, t = 65, i = 5)
#> $is_conserved
#> [1] TRUE
#>
#> $max_absolute_error
#> [1] 0
#>
#> $mean_absolute_error
#> [1] 0
#>
#> $discrepancy
#> [1] 0
#>