Table 3. Environmental (top) and WASH (bottom) predictor variables.

Data source	Variable	Scale [range]	Resolution [m]	Mask	Aggregation
OLI/Sentinel	Blue band	Continuous [0–1]	30 / 10	1, 2, 4, 5, 6	Median
OLI/Sentinel	Green band	Continuous [0–1]	30 / 10	1, 2, 4, 5, 6	Median
OLI/Sentinel	Red band	Continuous [0–1]	30 / 10	1, 2, 4, 5, 6	Median
OLI/Sentinel	nir band	Continuous [0–1]	30 / 10	1, 2, 4, 5, 6	Median
OLI/Sentinel	swir band	Continuous [0–1]	30 / 20	1, 2, 4, 5, 6	Median
OLI/Sentinel	NDVI	Continuous [-1-1]	30 / 10	1, 2, 4, 5, 6	Median
OLI/Sentinel	EVI	Continuous [-1-1]	30 / 10	1, 2, 4, 5, 6	Median
OLI/Sentinel	SAVI	Continuous [-1-1]	30 / 10	1, 2, 4, 5, 6	Median
OLI/Sentinel	MSAVI	Continuous [-1-1]	30 / 10	1, 2, 4, 5, 6	Median
OLI/Sentinel	NDWI	Continuous [-1-1]	30 / 10	1, 2, 4, 5, 6	Median
OLI/Sentinel	MNDWI	Continuous [-1-1]	30 / 10	1, 2, 4, 5, 6	Median
TIRS	LST [°C]	Continuous [13–47]	100	1, 2, 4, 5, 6	Median
DEM	Elevation [m]	Continuous [1–870]	30	1, 2, 4, 5, 6	Median
DEM	Slope [°]	Continuous [0–85]	30	1, 2, 4, 5, 6	Median
DEM	Stream order	Categorical [0–5]	30	1	Max
Field data	FIWS access	Categorical [0–5]	--	3	Mode
Field data	SWAP access	Categorical [0–5]	--	3	Mode
Field data	Iron [mg/l]	Continuous [0.1–0.7]	--	1	Median
Field data	TDS [mg/l]	Continuous [83–616]	--	1	Median