Applications in OOPS

OOPS provides the following applications that can be used with different models and observations:

Applications running forecast (and computing H(x))

• Forecast: model forecast

• HofX: model forecast and computes H(x)

Data assimilation applications

• Variational: variational data assimilation

• LocalEnsembleDA: local ensemble data assimilation

Ensemble applications

These applications are similar to the above but allow users to run several members at once in order to compute a Forecast, HofX or Variational Data Assimilation for an entire ensemble. See the documentation on Ensemble Applications.

• EnsembleForecast: ensemble of model forecasts

• EnsembleHofX: ensemble of model forecasts; computes H(x) for each ensemble member.

• EDA: ensemble of variational data assimilations

Data assimilation helper applications

• EstimateParams

• GenEnsPertB: generates an ensemble of states distributed according to a specifed background error covariance, and runs an ensemble forecast from that ensemble.

• StaticBInit

• ExternalDFI

• EnsVariance

Applications operating on model states and increments

• EnsRecenter: recenters ensemble around a provided state

• AddIncrement: adds increment to the model state

• DiffStates: computes and saves difference between two model states