31 | | * An additional prognostic equation for salinity is solved.\\ |
32 | | * Potential temperature in buoyancy and stability-related terms is replaced by potential density.\\ |
33 | | * Potential density is calculated from the equation of state for seawater after each timestep, using the algorithm proposed by Jackett et al. (2006, J. Atmos. Oceanic Technol., '''23''', 1709-1728).\\ |
34 | | So far, only the initial hydrostatic pressure is entered into this equation.\\ |
35 | | * z=0 (sea surface) is assumed at the model top (vertical grid index k=[#nzt nzt] on the w-grid), with negative values of z indicating the depth.\\ |
36 | | * Initial profiles are constructed (e.g. from [#pt_vertical_gradient pt_vertical_gradient] / [#pt_vertical_gradient_level pt_vertical_gradient_level]) starting from the sea surface, using surface values given by [#pt_surface pt_surface], [#sa_surface sa_surface], [#ug_surface ug_surface], and [#vg_surface vg_surface].\\ |
37 | | * Zero salinity flux is used as default boundary condition at the bottom of the sea.\\ |
| 31 | * An additional prognostic equation for salinity is solved.[[BR]] |
| 32 | |
| 33 | * Potential temperature in buoyancy and stability-related terms is replaced by potential density.[[BR]] |
| 34 | |
| 35 | * Potential density is calculated from the equation of state for seawater after each timestep, using the algorithm proposed by Jackett et al. (2006, J. Atmos. Oceanic Technol., '''23''', 1709-1728).[[BR]] |
| 36 | |
| 37 | So far, only the initial hydrostatic pressure is entered into this equation.[[BR]] |
| 38 | |
| 39 | * z=0 (sea surface) is assumed at the model top (vertical grid index k=[#nzt nzt] on the w-grid), with negative values of z indicating the depth.[[BR]] |
| 40 | |
| 41 | * Initial profiles are constructed (e.g. from [#pt_vertical_gradient pt_vertical_gradient] / [#pt_vertical_gradient_level pt_vertical_gradient_level]) starting from the sea surface, using surface values given by [#pt_surface pt_surface], [#sa_surface sa_surface], [#ug_surface ug_surface], and [#vg_surface vg_surface].[[BR]] |
| 42 | |
| 43 | * Zero salinity flux is used as default boundary condition at the bottom of the sea.[[BR]] |
| 44 | |
610 | 617 | This parameter is used to switch on a damping layer for the 1d-model, which is generally needed for the damping of inertia oscillations. Damping is done by gradually increasing the value of the eddy diffusivities about 10% per vertical grid level (starting with the value at the height given by '''damp_level_1d''', or possibly from the next grid pint above), i.e. K,,m,,(k+1) = 1.1 * K,,m,,(k). The values of K,,m,, are limited to 10 m^2^/s at maximum.\\\\ |
611 | 618 | This parameter only comes into effect if the 1d-model is switched on for the initialization of the 3d-model using [#initializing_actions initializing_actions] = '' 'set_1d-model_profiles'.'' |
| 619 | }}} |
| 620 | |---------------- |
| 621 | {{{#!td style="vertical-align:top" |
| 622 | [=#dissipation_1d '''dissipation_1d'''] |
| 623 | }}} |
| 624 | {{{#!td style="vertical-align:top" |
| 625 | C*20 |
| 626 | }}} |
| 627 | {{{#!td style="vertical-align:top" |
| 628 | 'as_in_3d_model' |
| 629 | }}} |
| 630 | {{{#!td |
| 631 | Calculation method for the energy dissipation term in the TKE equation of the [[1d-model]].\\\\ |
| 632 | By default the dissipation is calculated as in the 3d-model using diss = (0.19 + 0.74 * l / l_grid) * e{{{**}}}1.5 / l.\\\\ |
| 633 | Setting '''dissipation_1d''' = '' 'detering' '' forces the dissipation to be calculated as diss = 0.064 * e{{{**}}}1.5 / l. |
| 634 | }}} |
| 635 | |---------------- |
| 636 | {{{#!td style="vertical-align:top" |
| 637 | [=#<insert_parameter_name> '''<insert_parameter_name>'''] |
| 638 | }}} |
| 639 | {{{#!td style="vertical-align:top" |
| 640 | <insert type> |
| 641 | }}} |
| 642 | {{{#!td style="vertical-align:top" |
| 643 | <insert value> |
| 644 | }}} |
| 645 | {{{#!td |
| 646 | <insert explanation> |
| 647 | }}} |
| 648 | |---------------- |
| 649 | {{{#!td style="vertical-align:top" |
| 650 | [=#<insert_parameter_name> '''<insert_parameter_name>'''] |
| 651 | }}} |
| 652 | {{{#!td style="vertical-align:top" |
| 653 | <insert type> |
| 654 | }}} |
| 655 | {{{#!td style="vertical-align:top" |
| 656 | <insert value> |
| 657 | }}} |
| 658 | {{{#!td |
| 659 | <insert explanation> |
| 660 | }}} |
| 661 | |---------------- |
| 662 | {{{#!td style="vertical-align:top" |
| 663 | [=#<insert_parameter_name> '''<insert_parameter_name>'''] |
| 664 | }}} |
| 665 | {{{#!td style="vertical-align:top" |
| 666 | <insert type> |
| 667 | }}} |
| 668 | {{{#!td style="vertical-align:top" |
| 669 | <insert value> |
| 670 | }}} |
| 671 | {{{#!td |
| 672 | <insert explanation> |