ErrorCovarianceQG.h

Go to the documentation of this file.

/*
 * (C) Copyright 2009-2016 ECMWF.
 * 
 * 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. 
 * In applying this licence, ECMWF does not waive the privileges and immunities 
 * granted to it by virtue of its status as an intergovernmental organisation nor
 * does it submit to any jurisdiction.
 */
 
#ifndef QG_MODEL_ERRORCOVARIANCEQG_H_
#define QG_MODEL_ERRORCOVARIANCEQG_H_
 
#include <ostream>
#include <string>
#include <boost/noncopyable.hpp>
 
#include "eckit/config/Configuration.h"
 
#include "oops/util/ObjectCounter.h"
#include "oops/util/Printable.h"
 
#include "oops/qg/GeometryQG.h"
#include "oops/qg/QgFortran.h"
 
// Forward declarations
namespace oops {
  class Variables;
}
 
namespace qg {
  class IncrementQG;
  class StateQG;
 
// -----------------------------------------------------------------------------
/// Background error covariance matrix for QG model.
 
class ErrorCovarianceQG : public util::Printable,
                          private boost::noncopyable,
                          private util::ObjectCounter<ErrorCovarianceQG> {
 public:
  static const std::string classname() {return "qg::ErrorCovarianceQG";}
 
  ErrorCovarianceQG(const GeometryQG &, const oops::Variables &,
                    const eckit::Configuration &, const StateQG &, const StateQG &);
  ~ErrorCovarianceQG();
 
  void multiply(const IncrementQG &, IncrementQG &) const;
  void inverseMultiply(const IncrementQG &, IncrementQG &) const;
  void randomize(IncrementQG &) const;
 
 private:
  void print(std::ostream &) const;
  F90error_covariance keyConfig_;
};
// -----------------------------------------------------------------------------
 
}  // namespace qg
#endif  // QG_MODEL_ERRORCOVARIANCEQG_H_