Blatter compute_averaged_velocity compute_jacobian compute_node_type compute_residual copy_solution define_model_state_impl dirichlet_node exterior_element function_callback get_basal_velocity grounding_line init_2d_parameters init_ice_hardness init_impl jacobian_basal jacobian_callback jacobian_dirichlet jacobian_f m_da m_E_viscosity m_eta_transform m_face100 m_face4 m_glen_exponent m_ksp_use_ew m_n_work m_Nq m_parameters m_rho_ice_g m_rho_ocean_g m_scaling m_snes m_u_sigma m_v_sigma m_viscosity_eps m_work m_work2 m_x m_x_old marine_boundary nodal_parameter_values parameter_continuation partially_submerged_face report_mesh_info residual_basal residual_dirichlet residual_f residual_lateral residual_source_term residual_surface set_initial_guess setup solve u_bc update velocity_u_sigma velocity_v_sigma write_model_state_impl ~Blatter

jacobian_basal() void pism::stressbalance::Blatter::jacobian_basal ( const fem::Q1Element3Face &  face, const double *  tauc_nodal, const double *  f_nodal, const Vector2d *  u_nodal, double  K[2 *fem::q13d::n_chi][2 *fem::q13d::n_chi]  ) protectedvirtual Compute the Jacobian contribution of the basal boundary condition. This method implements basal sliding. Reimplemented in pism::stressbalance::BlatterTestCFBC, and pism::stressbalance::BlatterTestHalfar. Definition at line 123 of file jacobian.cc. References pism::fem::Q1Element3Face::chi(), pism::IceBasalResistancePlasticLaw::drag_with_derivative(), pism::fem::Q1Element3Face::evaluate(), pism::stressbalance::ShallowStressBalance::m_basal_sliding_law, m_scaling, m_work, m_work2, pism::fem::q13d::n_chi, pism::fem::Q1Element3Face::n_pts(), phi, pism::Vector2d::u, pism::Vector2d::v, and pism::fem::Q1Element3Face::weight(). Referenced by compute_jacobian().