tDelta_T.cc - pism - [fork] customized build of PISM, the parallel ice sheet model (tillflux branch)
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       tDelta_T.cc (2614B)
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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 "Delta_T.hh"
           20 
           21 #include "pism/util/ConfigInterface.hh"
           22 #include "pism/coupler/util/ScalarForcing.hh"
           23 
           24 namespace pism {
           25 namespace atmosphere {
           26 
           27 /// delta_T forcing of near-surface air temperatures
           28 
           29 Delta_T::Delta_T(IceGrid::ConstPtr grid, std::shared_ptr<AtmosphereModel> in)
           30   : AtmosphereModel(grid, in) {
           31 
           32   m_forcing.reset(new ScalarForcing(grid->ctx(),
           33                                     "atmosphere.delta_T",
           34                                     "delta_T",
           35                                     "Kelvin",
           36                                     "Kelvin",
           37                                     "near-surface air temperature offsets"));
           38 
           39   m_temperature = allocate_temperature(grid);
           40 }
           41 
           42 void Delta_T::init_impl(const Geometry &geometry) {
           43   m_input_model->init(geometry);
           44 
           45   m_log->message(2, "* Initializing near-surface air temperature forcing using scalar offsets...\n");
           46 
           47   m_forcing->init();
           48 }
           49 
           50 void Delta_T::init_timeseries_impl(const std::vector<double> &ts) const {
           51   AtmosphereModel::init_timeseries_impl(ts);
           52 
           53   m_offset_values.resize(ts.size());
           54   for (unsigned int k = 0; k < ts.size(); ++k) {
           55     m_offset_values[k] = m_forcing->value(ts[k]);
           56   }
           57 }
           58 
           59 void Delta_T::update_impl(const Geometry& geometry, double t, double dt) {
           60   m_input_model->update(geometry, t, dt);
           61   m_forcing->update(t, dt);
           62 
           63   m_temperature->copy_from(m_input_model->mean_annual_temp());
           64   m_temperature->shift(m_forcing->value());
           65 }
           66 
           67 const IceModelVec2S& Delta_T::mean_annual_temp_impl() const {
           68   return *m_temperature;
           69 }
           70 
           71 void Delta_T::temp_time_series_impl(int i, int j, std::vector<double> &result) const {
           72   m_input_model->temp_time_series(i, j, result);
           73 
           74   for (unsigned int k = 0; k < m_ts_times.size(); ++k) {
           75     result[k] += m_offset_values[k];
           76   }
           77 }
           78 
           79 } // end of namespace atmosphere
           80 } // end of namespace pism