Avoids building a full multi-layer ETc stack by accumulating
RET * season_weight * kc layer-by-layer. This is significantly more
memory-efficient for long seasons.
Usage
wapor_calc_seasonal_etc(
ret_dekad,
season_weights,
kc_dekad,
layer_multipliers = NULL
)
Arguments
- ret_dekad
SpatRaster. Dekadal RET layers.
- season_weights
SpatRaster. Dekadal season weights (0-1).
- kc_dekad
Numeric vector. Dekadal Kc values.
- layer_multipliers
Optional numeric vector of per-layer multipliers.
Value
A single-layer SpatRaster of seasonal ETc (weighted sum).