qg/model/ObsBias.cc

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.
 */

#include "model/ObsBias.h"

#include <cmath>
#include <iostream>
#include <sstream>
#include <string>

#include "eckit/config/Configuration.h"
#include "model/ObsBiasIncrement.h"
#include "oops/util/Logger.h"

// -----------------------------------------------------------------------------
namespace qg {
// -----------------------------------------------------------------------------
ObsBias::ObsBias(const eckit::Configuration & conf) : bias_(ntypes, 0.0), active_(false) {
  oops::Log::info() << "ObsBias: conf = " << conf << std::endl;
  active_ = conf.has("stream") || conf.has("uwind") || conf.has("vwind") || conf.has("wspeed");
  if (active_) {
    if (conf.has("stream")) bias_[0] = conf.getDouble("stream");
    if (conf.has("uwind"))  bias_[1] = conf.getDouble("uwind");
    if (conf.has("vwind"))  bias_[2] = conf.getDouble("vwind");
    if (conf.has("wspeed")) bias_[3] = conf.getDouble("wspeed");
    std::string strn = "";
    for (unsigned int jj = 0; jj < ObsBias::ntypes; ++jj) {
      if (jj > 0) strn += ", ";
      std::ostringstream strs;
      strs << bias_[jj];
      strn += strs.str();
    }
    oops::Log::info() << "ObsBias::ObsBias created, bias = " << strn << std::endl;
  }
}
// -----------------------------------------------------------------------------
ObsBias::ObsBias(const ObsBias & other, const bool copy)
  : bias_(ntypes, 0.0), active_(other.active_)
{
  if (active_ && copy) {
    for (unsigned int jj = 0; jj < ntypes; ++jj) bias_[jj] = other.bias_[jj];
  }
}
// -----------------------------------------------------------------------------
ObsBias & ObsBias::operator+=(const ObsBiasIncrement & dx) {
  if (active_) {
    for (unsigned int jj = 0; jj < ntypes; ++jj) bias_[jj] += dx[jj];
  }
  return *this;
}
// -----------------------------------------------------------------------------
double ObsBias::norm() const {
  double zz = 0.0;
  if (active_) {
    for (unsigned int jj = 0; jj < ntypes; ++jj) zz += bias_[jj]*bias_[jj];
    zz = std::sqrt(zz/3.0);
  }
  return zz;
}
// -----------------------------------------------------------------------------
void ObsBias::print(std::ostream & os) const {
  if (active_) {
    std::string strn = "";
    for (unsigned int jj = 0; jj < ObsBias::ntypes; ++jj) {
      if (jj > 0) strn += ", ";
      std::ostringstream strs;
      strs << bias_[jj];
      strn += strs.str();
    }
    os << std::endl << "ObsBias = " << strn;
  }
}
// -----------------------------------------------------------------------------
}  // namespace qg