tFrac_SMB.cc - pism - [fork] customized build of PISM, the parallel ice sheet model (tillflux branch)
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       tFrac_SMB.cc (2056B)
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            1 // Copyright (C) 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 PISM Authors
            2 //
            3 // This file is part of PISM.
            4 //
            5 // PISM is free software; you can redistribute it and/or modify it under the
            6 // terms of the GNU General Public License as published by the Free Software
            7 // Foundation; either version 3 of the License, or (at your option) any later
            8 // version.
            9 //
           10 // PISM is distributed in the hope that it will be useful, but WITHOUT ANY
           11 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
           12 // FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
           13 // details.
           14 //
           15 // You should have received a copy of the GNU General Public License
           16 // along with PISM; if not, write to the Free Software
           17 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
           18 
           19 #include "Frac_SMB.hh"
           20 #include "pism/coupler/util/ScalarForcing.hh"
           21 
           22 namespace pism {
           23 namespace ocean {
           24 
           25 Frac_SMB::Frac_SMB(IceGrid::ConstPtr g, std::shared_ptr<OceanModel> in)
           26   : OceanModel(g, in) {
           27 
           28   m_forcing.reset(new ScalarForcing(g->ctx(),
           29                                     "ocean.frac_mass_flux",
           30                                     "frac_mass_flux",
           31                                     "1", "1",
           32                                     "ice-shelf-base mass flux factor"));
           33 
           34   m_shelf_base_mass_flux = allocate_shelf_base_mass_flux(g);
           35 }
           36 
           37 Frac_SMB::~Frac_SMB() {
           38   // empty
           39 }
           40 
           41 void Frac_SMB::init_impl(const Geometry &geometry) {
           42 
           43   m_input_model->init(geometry);
           44 
           45   m_log->message(2,
           46                  "* Initializing ice shelf base mass flux forcing using scalar offsets...\n");
           47 
           48   m_forcing->init();
           49 }
           50 
           51 void Frac_SMB::update_impl(const Geometry &geometry, double t, double dt) {
           52   m_input_model->update(geometry, t, dt);
           53 
           54   m_forcing->update(t, dt);
           55 
           56   m_shelf_base_mass_flux->copy_from(m_input_model->shelf_base_mass_flux());
           57   m_shelf_base_mass_flux->scale(m_forcing->value());
           58 }
           59 
           60 const IceModelVec2S& Frac_SMB::shelf_base_mass_flux_impl() const {
           61   return *m_shelf_base_mass_flux;
           62 }
           63 
           64 } // end of namespace ocean
           65 } // end of namespace pism