CNOP-P-Based Parameter Sensitivity Analysis for North Atlantic Oscillation in Community Earth System Model Using Intelligence Algorithms

Table 1

The 28 sensitive parameters screened by linear perturbations.

Number	Parameter	Description	Default value
p1	ch4vmr	volume Mixing ratio
p2	co2vmr	volume Mixing ratio
p3	f11vmr	volume Mixing ratio
p4	f12vmr	volume Mixing ratio
p5	n2ovmr	volume Mixing ratio
p6	cldfrc_dp1	Parameter for deep convection cloud fraction
p7	cldfrc_dp2	Parameter for deep convection cloud fraction
p8	cldfrc_premib	Bottom height for midlevel liquid stratus fraction
p9	cldfrc_rhminh	Minimum relative humidity for high stable clouds
p10	cldfrc_rhminl	Minimum relative humidity for low stable clouds
p11	cldfrc_rhminl_adj_land	Adjustment to rhminl for land without snow cover
p12	cldfrc_sh1	Parameter for shallow convection cloud fraction
p13	cldfrc_sh2	Parameter for shallow convection cloud fraction
p14	cldsed_ice_stokes_fac	Factor applied to the ice fall velocity
p15	cldwat_conke	Tunable constant for evaporation of precip
p16	cldwat_icritc	Threshold for autoconversion of cold ice
p17	cldwat_icritw	Threshold for autoconversion of warm ice
p18	cldwat_r3lcrit	Critical radius at which autoconversion become efficient
p19	fcrit2	Critical froude number squared
p20	hkconv_c0	Rain water autoconversion coefficient
p21	hkconv_cmftau	Characteristic adjustment time scale
p22	solar_const	Total solar irradiance ()
p23	zmconv_c0_lnd	Autoconversion coefficient over land
p24	zmconv_c0_ocn	Autoconversion coefficient over ocean
p25	zmconv_ke	Tunable evaporation efficiency
p26	dt_mlt_in	Melt onset temperature tunable parameter
p27	r_snw	Snow grain radius tunable parameter
p28	rsnw_melt_in	Maximum melting snow grain radius tunable parameter