mom_bkgnd_mixing::bkgnd_mixing_cs real real mom_bkgnd_mixing::bkgnd_mixing_cs::bryan_lewis_c1 bryan_lewis_c1 The vertical diffusivity values for Bryan-Lewis profile at |z|=D [m2 s-1]. real real mom_bkgnd_mixing::bkgnd_mixing_cs::bryan_lewis_c2 bryan_lewis_c2 The amplitude of variation in diffusivity for the Bryan-Lewis diffusivity profile [m2 s-1]. real real mom_bkgnd_mixing::bkgnd_mixing_cs::bryan_lewis_c3 bryan_lewis_c3 The inverse length scale for transition region in the Bryan-Lewis diffusivity profile [m-1]. real real mom_bkgnd_mixing::bkgnd_mixing_cs::bryan_lewis_c4 bryan_lewis_c4 The depth where diffusivity is Bryan_Lewis_bl1 in the Bryan-Lewis profile [m]. real real mom_bkgnd_mixing::bkgnd_mixing_cs::bckgrnd_vdc1 bckgrnd_vdc1 Background diffusivity (Ledwell) when horiz_varying_background=.true. [Z2 T-1 ~> m2 s-1]. real real mom_bkgnd_mixing::bkgnd_mixing_cs::bckgrnd_vdc_eq bckgrnd_vdc_eq Equatorial diffusivity (Gregg) when horiz_varying_background=.true. [Z2 T-1 ~> m2 s-1]. real real mom_bkgnd_mixing::bkgnd_mixing_cs::bckgrnd_vdc_psim bckgrnd_vdc_psim Max. PSI induced diffusivity (MacKinnon) when horiz_varying_background=.true. [Z2 T-1 ~> m2 s-1]. real real mom_bkgnd_mixing::bkgnd_mixing_cs::bckgrnd_vdc_banda bckgrnd_vdc_banda Banda Sea diffusivity (Gordon) when horiz_varying_background=.true. [Z2 T-1 ~> m2 s-1]. real real mom_bkgnd_mixing::bkgnd_mixing_cs::kd_min kd_min minimum diapycnal diffusivity [Z2 T-1 ~> m2 s-1] real real mom_bkgnd_mixing::bkgnd_mixing_cs::kd kd interior diapycnal diffusivity [Z2 T-1 ~> m2 s-1] real real mom_bkgnd_mixing::bkgnd_mixing_cs::omega omega The Earth's rotation rate [T-1 ~> s-1]. real real mom_bkgnd_mixing::bkgnd_mixing_cs::n0_2omega n0_2omega ratio of the typical Buoyancy frequency to twice the Earth's rotation period, used with the Henyey scaling from the mixing real real mom_bkgnd_mixing::bkgnd_mixing_cs::prandtl_bkgnd prandtl_bkgnd Turbulent Prandtl number used to convert vertical background diffusivity into viscosity. real real mom_bkgnd_mixing::bkgnd_mixing_cs::kd_tanh_lat_scale kd_tanh_lat_scale A nondimensional scaling for the range of diffusivities with Kd_tanh_lat_fn. Valid values are in the range of -2 to 2; 0.4 reproduces CM2M. real real mom_bkgnd_mixing::bkgnd_mixing_cs::kdml kdml mixed layer diapycnal diffusivity [Z2 T-1 ~> m2 s-1] when bulkmixedlayer==.false. real real mom_bkgnd_mixing::bkgnd_mixing_cs::hmix hmix mixed layer thickness [Z ~> m] when bulkmixedlayer==.false. logical logical mom_bkgnd_mixing::bkgnd_mixing_cs::kd_tanh_lat_fn kd_tanh_lat_fn If true, use the tanh dependence of Kd_sfc on latitude, like GFDL CM2.1/CM2M. There is no physical justification for this form, and it can not be used with Henyey_IGW_background. logical logical mom_bkgnd_mixing::bkgnd_mixing_cs::bryan_lewis_diffusivity bryan_lewis_diffusivity If true, background vertical diffusivity uses Bryan-Lewis (1979) like tanh profile. logical logical mom_bkgnd_mixing::bkgnd_mixing_cs::horiz_varying_background horiz_varying_background If true, apply vertically uniform, latitude-dependent background diffusivity, as described in Danabasoglu et al., 2012. logical logical mom_bkgnd_mixing::bkgnd_mixing_cs::henyey_igw_background henyey_igw_background If true, use a simplified variant of the Henyey et al, JGR (1986) latitudinal scaling for the background diapycnal diffusivity, which gives a marked decrease in the diffusivity near the equator. The simplification here is to assume that the in-situ stratification is the same as the reference stratificaiton. logical logical mom_bkgnd_mixing::bkgnd_mixing_cs::henyey_igw_background_new henyey_igw_background_new same as Henyey_IGW_background but incorporate the effect of stratification on TKE dissipation, e = f/f_0 * acosh(N/f) / acosh(N_0/f_0) * e_0 where e is the TKE dissipation, and N_0 and f_0 are the reference buoyancy frequency and inertial frequencies respectively. e_0 is the reference dissipation at (N_0,f_0). In the previous version, N=N_0. Additionally, the squared inverse relationship between diapycnal diffusivities and stratification is included: kd = e/N^2 where kd is the diapycnal diffusivity. This approach assumes that work done against gravity is uniformly distributed throughout the column. Whereas, kd=kd_0*e, as in the original version, concentrates buoyancy work in regions of strong stratification. logical logical mom_bkgnd_mixing::bkgnd_mixing_cs::bulkmixedlayer bulkmixedlayer If true, a refined bulk mixed layer scheme is used. logical logical mom_bkgnd_mixing::bkgnd_mixing_cs::kd_via_kdml_bug kd_via_kdml_bug If true and KDML /= KD and a number of other higher precedence options are not used, the background diffusivity is set incorrectly using a bug that was introduced in March, 2018. logical logical mom_bkgnd_mixing::bkgnd_mixing_cs::debug debug If true, turn on debugging in this module. type(diag_ctrl), pointer type(diag_ctrl), pointer mom_bkgnd_mixing::bkgnd_mixing_cs::diag diag => NULL() A structure that regulates diagnostic output. character(len=40) character(len=40) mom_bkgnd_mixing::bkgnd_mixing_cs::bkgnd_scheme_str bkgnd_scheme_str = "none" Background scheme identifier. Control structure including parameters for this module. real mom_bkgnd_mixing::bkgnd_mixing_cs henyey_igw_background_new bulkmixedlayer kd_via_kdml_bug horiz_varying_background henyey_igw_background bryan_lewis_diffusivity kd_tanh_lat_fn debug diag bkgnd_scheme_str bckgrnd_vdc_psim hmix bryan_lewis_c1 kd_tanh_lat_scale bryan_lewis_c2 bryan_lewis_c3 bckgrnd_vdc_banda bckgrnd_vdc1 bryan_lewis_c4 prandtl_bkgnd ... logical character(len=40) diag_ctrl mom_bkgnd_mixing::bkgnd_mixing_csbckgrnd_vdc1 mom_bkgnd_mixing::bkgnd_mixing_csbckgrnd_vdc_banda mom_bkgnd_mixing::bkgnd_mixing_csbckgrnd_vdc_eq mom_bkgnd_mixing::bkgnd_mixing_csbckgrnd_vdc_psim mom_bkgnd_mixing::bkgnd_mixing_csbkgnd_scheme_str mom_bkgnd_mixing::bkgnd_mixing_csbryan_lewis_c1 mom_bkgnd_mixing::bkgnd_mixing_csbryan_lewis_c2 mom_bkgnd_mixing::bkgnd_mixing_csbryan_lewis_c3 mom_bkgnd_mixing::bkgnd_mixing_csbryan_lewis_c4 mom_bkgnd_mixing::bkgnd_mixing_csbryan_lewis_diffusivity mom_bkgnd_mixing::bkgnd_mixing_csbulkmixedlayer mom_bkgnd_mixing::bkgnd_mixing_csdebug mom_bkgnd_mixing::bkgnd_mixing_csdiag mom_bkgnd_mixing::bkgnd_mixing_cshenyey_igw_background mom_bkgnd_mixing::bkgnd_mixing_cshenyey_igw_background_new mom_bkgnd_mixing::bkgnd_mixing_cshmix mom_bkgnd_mixing::bkgnd_mixing_cshoriz_varying_background mom_bkgnd_mixing::bkgnd_mixing_cskd mom_bkgnd_mixing::bkgnd_mixing_cskd_min mom_bkgnd_mixing::bkgnd_mixing_cskd_tanh_lat_fn mom_bkgnd_mixing::bkgnd_mixing_cskd_tanh_lat_scale mom_bkgnd_mixing::bkgnd_mixing_cskd_via_kdml_bug mom_bkgnd_mixing::bkgnd_mixing_cskdml mom_bkgnd_mixing::bkgnd_mixing_csn0_2omega mom_bkgnd_mixing::bkgnd_mixing_csomega mom_bkgnd_mixing::bkgnd_mixing_csprandtl_bkgnd