An observation operator calculating ObsDiagnostics representing single-level background errors of simulated variables. More...

#include <ObsBackgroundErrorIdentity.h>

Inheritance diagram for ufo::ObsBackgroundErrorIdentity:

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Collaboration diagram for ufo::ObsBackgroundErrorIdentity:

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Public Types
typedef ObsBackgroundErrorIdentityParameters	Parameters_

Public Member Functions
	ObsBackgroundErrorIdentity (const ioda::ObsSpace &, const Parameters_ &)

virtual	~ObsBackgroundErrorIdentity ()

void	simulateObs (const GeoVaLs &, ioda::ObsVector &, ObsDiagnostics &) const override
	Obs Operator. More...

const oops::Variables &	requiredVars () const override
	Operator input required from Model. More...

oops::Variables	simulatedVars () const override
	List of variables simulated by this operator. More...

Public Member Functions inherited from ufo::ObsOperatorBase
	ObsOperatorBase (const ioda::ObsSpace &odb, const eckit::Configuration &=eckit::LocalConfiguration())

virtual	~ObsOperatorBase ()

virtual std::unique_ptr< Locations >	locations () const
	Locations for GeoVaLs. More...

Static Public Member Functions
static const std::string	classname ()

Private Member Functions
void	print (std::ostream &) const override

Private Attributes
const ioda::ObsSpace &	odb_

Parameters_	parameters_

oops::Variables	requiredVars_

Detailed Description

An observation operator calculating ObsDiagnostics representing single-level background errors of simulated variables.

It should be used as a component of the Composite observation operator (with another component handling the calculation of model equivalents of observation). It populates all requested ObsDiagnostics called <var>_background_error, where <var> is the name of a simulated variable, by copying the <var>_background_error GeoVaL at the observation locations.

If the variables option is present, the operator does not calculate the background errors of all simulated variables in the ObsSpace, but only those listed in the variables option.

See ObsBackgroundErrorIdentityParameters for the description of YAML configuration options accepted by this operator.

Example configuration:

obs operator:
  name: Composite
  components:
  # operator used to evaluate H(x)
  - name: identity
    vertical coordinate: geopotential_height  # coordinate used for obs value interpolation
  # operator used to evaluate background errors
  - name: BackgroundErrorIdentity

Definition at line 72 of file ObsBackgroundErrorIdentity.h.