. Author manuscript; available in PMC: 2020 Dec 2.

Published in final edited form as: Atmos Chem Phys. 2020 Jul 2;20(13):7645–7665. doi: 10.5194/acp-20-7645-2020

Table 7.

Results of multivariable regressions from previous studies that have correlated N_d to mass concentrations. The regression corresponds to a model like Eq. (3). OM represents organic matter, SS represents sea salt, BC represents black carbon, and DU represents dust.

	Predictors (P_i) and their respective coefficients (a_i)
Reference	a₀	a₁	P₁	a₂	P₂	a₃	P₃	a₄	P₄	R²	Cloud type
Menon et al. (2002)^*	2.41	0.50	${NSS-SO}_{4}^{2 -}$	0.13	OM						Continental
	2.41	0.50	${NSS-SO}_{4}^{2 -}$	0.13	OM	0.05	SS				Marine
McCoy et al. (2017)	1.78	0.31	${NSS-SO}_{4}^{2 -}$	−0.19	SS	0.057	BC	0.031	DU	0.44	Marine stratocumulus (global average)
McCoy et al. (2018)	2.03	0.2	${NSS-SO}_{4}^{2 -}$	−0.04	SS	−0.03	BC	0	DU	0.08	Marine stratocumulus (just Californian coast)

This study obtains data from other studies and calculates organic matter.