ObsLocQG.h

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/*
 * (C) Copyright 2021 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.
 */
 
#ifndef QG_MODEL_OBSLOCQG_H_
#define QG_MODEL_OBSLOCQG_H_
 
#include <ostream>
 
#include "oops/base/ObsLocalizationBase.h"
 
#include "oops/qg/QgTraits.h"
 
namespace eckit {
  class Configuration;
}
 
namespace qg {
  class GeometryQGIterator;
  class ObsSpaceQG;
  class ObsVecQG;
 
/// \brief Observation-space localization for QG model (Heaviside function
/// with prescribed lengthscale).
class ObsLocQG : public oops::ObsLocalizationBase<QgTraits, QgObsTraits> {
 public:
  ObsLocQG(const eckit::Configuration &, const ObsSpaceQG &);
 
  void computeLocalization(const GeometryQGIterator &, ObsVecQG &) const override;
 
 private:
  void print(std::ostream &) const override;
  const double lengthscale_;
  const ObsSpaceQG & obsdb_;
};
 
}  // namespace qg
 
#endif  // QG_MODEL_OBSLOCQG_H_