Loading [MathJax]/extensions/tex2jax.js
PISM, A Parallel Ice Sheet Model 2.2.1-cd005eec8 committed by Constantine Khrulev on 2025-03-07
All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Pages
SeaLevel.cc
Go to the documentation of this file.
1/* Copyright (C) 2018, 2019, 2021, 2023 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
20#include "pism/coupler/SeaLevel.hh"
21
22#include "pism/util/MaxTimestep.hh"
23
24#include "pism/util/pism_utilities.hh" // combine
25
26namespace pism {
27namespace ocean {
28namespace sea_level {
29
30// "Modifier" constructor.
31SeaLevel::SeaLevel(std::shared_ptr<const Grid> grid, std::shared_ptr<SeaLevel> input)
32 : Component(grid),
33 m_input_model(input),
34 m_sea_level(grid, "sea_level") {
35
37 .long_name("sea level elevation, relative to the geoid")
38 .units("meter");
39}
40
41// "Model" constructor (returns sea level is zero).
42SeaLevel::SeaLevel(std::shared_ptr<const Grid> g)
43 : SeaLevel(g, std::shared_ptr<SeaLevel>()) {
44 // empty
45}
46
47void SeaLevel::init(const Geometry &geometry) {
48 init_impl(geometry);
49}
50
51void SeaLevel::init_impl(const Geometry &geometry) {
52 if (m_input_model) {
53 m_input_model->init(geometry);
54 } else {
55 double z_s = m_config->get_number("sea_level.constant.value");
56 m_sea_level.set(z_s);
57 m_log->message(2, "* Using constant sea level at %f meters...\n", z_s);
58 }
59}
60
61void SeaLevel::update(const Geometry &geometry, double t, double dt) {
62 update_impl(geometry, t, dt);
63}
64
65void SeaLevel::update_impl(const Geometry &geometry, double t, double dt) {
66 if (m_input_model) {
67 m_input_model->update(geometry, t, dt);
68 } else {
69 double z_s = m_config->get_number("sea_level.constant.value");
70 m_sea_level.set(z_s);
71 }
72}
73
75 return m_sea_level;
76}
77
79 if (m_input_model) {
80 return m_input_model->max_timestep(t);
81 }
82 return MaxTimestep("sea level forcing");
83}
84
85void SeaLevel::define_model_state_impl(const File &output) const {
86 if (m_input_model) {
87 m_input_model->define_model_state(output);
88 }
89}
90
91void SeaLevel::write_model_state_impl(const File &output) const {
92 if (m_input_model) {
93 m_input_model->write_model_state(output);
94 }
95}
96
97namespace diagnostics {
98
99/*! @brief Sea level elevation. */
100class SL : public Diag<SeaLevel> {
101public:
102 SL(const SeaLevel *m) : Diag<SeaLevel>(m) {
103 m_vars = { { m_sys, "sea_level" } };
104 m_vars[0].long_name("sea level elevation, relative to the geoid").units("meters");
105 }
106
107protected:
108 std::shared_ptr<array::Array> compute_impl() const {
109 auto result = allocate<array::Scalar>("sea_level");
110
111 result->copy_from(model->elevation());
112
113 return result;
114 }
115};
116
117} // end of namespace diagnostics
118
120 DiagnosticList result = {
121 {"sea_level", Diagnostic::Ptr(new diagnostics::SL(this))},
122 };
123
124 if (m_input_model) {
125 return combine(result, m_input_model->diagnostics());
126 } else {
127 return result;
128 }
129}
130
132 if (m_input_model) {
133 return m_input_model->ts_diagnostics();
134 } else {
135 return {};
136 }
137}
138
139} // end of namespace sea_level
140} // end of namespace ocean
141} // end of namespace pism
const Config::ConstPtr m_config
configuration database used by this component
Definition Component.hh:158
const Logger::ConstPtr m_log
logger (for easy access)
Definition Component.hh:162
A class defining a common interface for most PISM sub-models.
Definition Component.hh:118
const SeaLevel * model
A template derived from Diagnostic, adding a "Model".
const units::System::Ptr m_sys
the unit system
std::vector< SpatialVariableMetadata > m_vars
metadata corresponding to NetCDF variables
std::shared_ptr< Diagnostic > Ptr
Definition Diagnostic.hh:65
High-level PISM I/O class.
Definition File.hh:55
Combines the max. time step with the flag indicating if a restriction is active. Makes is possible to...
VariableMetadata & long_name(const std::string &input)
VariableMetadata & units(const std::string &input)
void set(double c)
Result: v[j] <- c for all j.
Definition Array.cc:629
SpatialVariableMetadata & metadata(unsigned int N=0)
Returns a reference to the SpatialVariableMetadata object containing metadata for the compoment N.
Definition Array.cc:476
void update(const Geometry &geometry, double t, double dt)
Definition SeaLevel.cc:61
virtual void define_model_state_impl(const File &output) const
The default (empty implementation).
Definition SeaLevel.cc:85
std::shared_ptr< SeaLevel > m_input_model
Definition SeaLevel.hh:61
virtual void write_model_state_impl(const File &output) const
The default (empty implementation).
Definition SeaLevel.cc:91
virtual void update_impl(const Geometry &geometry, double t, double dt)
Definition SeaLevel.cc:65
virtual TSDiagnosticList ts_diagnostics_impl() const
Definition SeaLevel.cc:131
SeaLevel(std::shared_ptr< const Grid > g, std::shared_ptr< SeaLevel > input)
Definition SeaLevel.cc:31
virtual void init_impl(const Geometry &geometry)
Definition SeaLevel.cc:51
virtual DiagnosticList diagnostics_impl() const
Definition SeaLevel.cc:119
virtual MaxTimestep max_timestep_impl(double t) const
Definition SeaLevel.cc:78
void init(const Geometry &geometry)
Definition SeaLevel.cc:47
const array::Scalar & elevation() const
Definition SeaLevel.cc:74
std::shared_ptr< array::Array > compute_impl() const
Definition SeaLevel.cc:108
bool ocean(int M)
An ocean cell (floating ice or ice-free).
Definition Mask.hh:40
static const double g
Definition exactTestP.cc:36
std::map< std::string, TSDiagnostic::Ptr > TSDiagnosticList
std::map< std::string, Diagnostic::Ptr > DiagnosticList
T combine(const T &a, const T &b)