Delta_SL_2D.cc

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// Copyright (C) 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2021, 2022, 2023, 2025 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.
//
// 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/sea_level/Delta_SL_2D.hh"
 
#include "pism/util/Grid.hh"
#include "pism/coupler/util/options.hh"
#include "pism/util/array/Forcing.hh"
#include "pism/util/Logger.hh"
#include "pism/util/io/IO_Flags.hh"
 
namespace pism {
namespace ocean {
namespace sea_level {
 
Delta_SL_2D::Delta_SL_2D(std::shared_ptr<const Grid> grid, std::shared_ptr<SeaLevel> in)
  : SeaLevel(grid, in) {
 
  ForcingOptions opt(*m_grid->ctx(), "ocean.delta_sl_2d");
 
  {
    unsigned int buffer_size = m_config->get_number("input.forcing.buffer_size");
 
    File file(m_grid->com, opt.filename, io::PISM_NETCDF3, io::PISM_READONLY);
 
    m_forcing = std::make_shared<array::Forcing>(m_grid,
                                                 file,
                                                 "delta_SL",
                                                 "", // no standard name
                                                 buffer_size,
                                                 opt.periodic,
                                                 LINEAR);
    m_forcing->metadata(0)
        .long_name("two-dimensional sea level offsets")
        .units("meters");
  }
}
 
void Delta_SL_2D::init_impl(const Geometry &geometry) {
 
  m_input_model->init(geometry);
 
  ForcingOptions opt(*m_grid->ctx(), "ocean.delta_sl_2d");
 
  m_log->message(2, "* Initializing 2D sea level forcing...\n");
  m_log->message(2, "    reading anomalies from %s ...\n", opt.filename.c_str());
 
  m_forcing->init(opt.filename, opt.periodic);
}
 
void Delta_SL_2D::update_impl(const Geometry &geometry, double t, double dt) {
  m_input_model->update(geometry, t, dt);
 
  m_forcing->update(t, dt);
  m_forcing->average(t, dt);
 
  m_input_model->elevation().add(1.0, *m_forcing, m_sea_level);
}
 
} // end of namespace sea_level
} // end of namespace ocean
} // end of namespace pism