. Author manuscript; available in PMC: 2020 Jul 10.

Published in final edited form as: Remote Sens (Basel). 2017 Nov 17;9(11):1179. doi: 10.3390/rs9111179

Table 2.

Ensemble perturbations applied to the forcing variables - precipitation (P), downward shortwave (DSW) radiation and downward long wave (DLW) radiation - and to the Catchment model prognostic variables - surface excess (srfexc) and catchment deficit (catdef). Shown are the perturbation type, which is either multiplicative (M) sampled from a log-normal distribution or additive (A) sampled from a normal distribution, the perturbation standard deviation (std dev), the temporal and spatial correlation lengths as well as the cross-correlations of the forcing variables. Perturbations to the prognostic variables are not cross-correlated.

	type	std dev	temporal correlation	spatial correlation	cross correlation with
					P	DSW	DLW
P	M	0.5	24 h	0.5 deg	-	−0.8	0.5
DSW	M	0.3	24 h	0.5 deg	−0.8	-	−0.5
DLW	A	20 W m⁻²	24 h	0.5 deg	0.5	−0.5	-
srfexc	A	0.24 kg m⁻² h⁻¹	3 h	0.3 deg
catdef	A	0.16 kg m⁻² h⁻¹	3 h	0.3 deg