ErrorCovariance.cc

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/*
 * (C) Copyright 2017-2020 UCAR
 *
 * This software is licensed under the terms of the Apache Licence Version 2.0
 * which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
 */
 
#include <cmath>
 
#include "eckit/config/Configuration.h"
#include "oops/base/Variables.h"
#include "oops/util/Logger.h"
 
#include "fv3jedi/ErrorCovariance/ErrorCovariance.h"
#include "fv3jedi/Geometry/Geometry.h"
#include "fv3jedi/Increment/Increment.h"
#include "fv3jedi/State/State.h"
 
// -------------------------------------------------------------------------------------------------
namespace fv3jedi {
// -------------------------------------------------------------------------------------------------
 
ErrorCovariance::ErrorCovariance(const Geometry & resol, const oops::Variables &,
                                 const eckit::Configuration & conf, const State &, const State &) {
  oops::Log::trace() << "ErrorCovariance created" << std::endl;
}
 
// -------------------------------------------------------------------------------------------------
 
ErrorCovariance::~ErrorCovariance() {
  oops::Log::trace() << "ErrorCovariance destructed" << std::endl;
}
 
// -------------------------------------------------------------------------------------------------
 
void ErrorCovariance::multiply(const Increment & dxin, Increment & dxout) const {
  dxout = dxin;  // Identity
}
 
// -------------------------------------------------------------------------------------------------
 
void ErrorCovariance::inverseMultiply(const Increment & dxin, Increment & dxout) const {
  dxout = dxin;  // Identity
}
 
// -------------------------------------------------------------------------------------------------
 
void ErrorCovariance::randomize(Increment & dx) const {
  dx.random();
}
 
// -------------------------------------------------------------------------------------------------
 
}  // namespace fv3jedi