Delta_SMB.cc

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// Copyright (C) 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2021, 2023 PISM Authors
//
// This file is part of PISM.
//
// PISM is free software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the Free Software
// Foundation; either version 3 of the License, or (at your option) any later
// version.
//
// PISM is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
// details.
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// You should have received a copy of the GNU General Public License
// along with PISM; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
#include "pism/coupler/ocean/Delta_SMB.hh"
#include "pism/util/ScalarForcing.hh"
 
namespace pism {
namespace ocean {
 
Delta_SMB::Delta_SMB(std::shared_ptr<const Grid> g, std::shared_ptr<OceanModel> in)
  : OceanModel(g, in) {
 
  m_forcing.reset(new ScalarForcing(*g->ctx(),
                                    "ocean.delta_mass_flux",
                                    "delta_mass_flux",
                                    "kg m-2 second-1",
                                    "kg m-2 year-1",
                                    "ice-shelf-base mass flux offsets"));
 
  m_shelf_base_mass_flux = allocate_shelf_base_mass_flux(g);
}
 
Delta_SMB::~Delta_SMB() {
  // empty
}
 
void Delta_SMB::init_impl(const Geometry &geometry) {
  m_input_model->init(geometry);
 
  m_log->message(2,
                 "* Initializing ice shelf base mass flux forcing using scalar offsets...\n");
}
 
void Delta_SMB::update_impl(const Geometry &geometry, double t, double dt) {
  m_input_model->update(geometry, t, dt);
 
  m_shelf_base_mass_flux->copy_from(m_input_model->shelf_base_mass_flux());
  m_shelf_base_mass_flux->shift(m_forcing->value(t + 0.5 * dt));
}
 
const array::Scalar& Delta_SMB::shelf_base_mass_flux_impl() const {
  return *m_shelf_base_mass_flux;
}
 
} // end of namespace ocean
} // end of namespace pism