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Compute ETc-Based Adequacy

Source: R/analysis_indicators.R
wapor_calc_adequacy_etc.Rd

Adequacy_ETc = Seasonal_AETI / Seasonal_ETc. Measures whether water consumption meets crop water requirements. Values near 1.0 represent full satisfaction, values below 1.0 indicate water deficit or stress, and values above 1.0 indicate water application in excess of standard crop demand.

Usage

wapor_calc_adequacy_etc(
  aeti_seasonal,
  etc_seasonal,
  provenance = NULL,
  compatibility_mode = c("warn", "strict")
)

Arguments

aeti_seasonal

SpatRaster or numeric. Seasonal AETI.

etc_seasonal

SpatRaster or numeric. Seasonal ETc.

provenance

Optional named provenance records for aeti and etc.

compatibility_mode

Missing-metadata policy: "warn" or "strict". Known incompatibilities always stop the calculation.

Value

SpatRaster or numeric of adequacy ratio.

References

Molden, D. J., & Gates, T. K. (1990). Performance metrics for evaluation of irrigation-water-delivery systems. Journal of Irrigation and Drainage Engineering, 116(6), 804-823.

Karimi, P., Bastiaanssen, W. G., & Molden, D. (2019). Water accounting plus (WA+) - a water accounting procedure for complex river basins based on satellite measurements. Hydrology and Earth System Sciences, 17(7), 2459-2472.