Stochastic representations of model uncertainties at ECMWF: State of the art and future vision
Members in ensemble forecasts differ due to the representations of initial uncertainties and
model uncertainties. The inclusion of stochastic schemes to represent model uncertainties …
model uncertainties. The inclusion of stochastic schemes to represent model uncertainties …
Ocean reanalyses: recent advances and unsolved challenges
A Storto, A Alvera-Azcárate, MA Balmaseda… - Frontiers in Marine …, 2019 - frontiersin.org
Ocean reanalyses combine ocean models, atmospheric forcing fluxes, and observations
using data assimilation to give a four-dimensional description of the ocean. Metrics …
using data assimilation to give a four-dimensional description of the ocean. Metrics …
Quality assessment of the TOPAZ4 reanalysis in the Arctic over the period 1991–2013
Long dynamical atmospheric reanalyses are widely used for climate studies, but data-
assimilative reanalyses of ocean and sea ice in the Arctic are less common. TOPAZ4 is a …
assimilative reanalyses of ocean and sea ice in the Arctic are less common. TOPAZ4 is a …
Super-resolution data assimilation
Increasing model resolution can improve the performance of a data assimilation system
because it reduces model error, the system can more optimally use high-resolution …
because it reduces model error, the system can more optimally use high-resolution …
Revision of the stochastically perturbed parametrisations model uncertainty scheme in the integrated forecasting system
STK Lang, SJ Lock, M Leutbecher… - Quarterly Journal of …, 2021 - Wiley Online Library
Abstract The Stochastically Perturbed Parametrisations scheme (SPP) represents model
uncertainty in numerical weather prediction by introducing stochastic perturbations into the …
uncertainty in numerical weather prediction by introducing stochastic perturbations into the …
Impact of assimilating a merged sea-ice thickness from CryoSat-2 and SMOS in the Arctic reanalysis
Accurately forecasting the sea-ice thickness (SIT) in the Arctic is a major challenge. The new
SIT product (referred to as CS2SMOS) merges measurements from the CryoSat-2 and …
SIT product (referred to as CS2SMOS) merges measurements from the CryoSat-2 and …
Relating model bias and prediction skill in the equatorial Atlantic
We investigate the impact of large climatological biases in the tropical Atlantic on reanalysis
and seasonal prediction performance using the Norwegian Climate Prediction Model …
and seasonal prediction performance using the Norwegian Climate Prediction Model …
Introducing independent patterns into the stochastically perturbed parametrization tendencies (SPPT) scheme
The Stochastically Perturbed Parametrization Tendencies (SPPT) scheme is used at
weather and climate forecasting centres worldwide to represent model uncertainty that …
weather and climate forecasting centres worldwide to represent model uncertainty that …
Parametrization in weather and climate models
H Christensen, L Zanna - 2022 - ora.ox.ac.uk
Numerical computer models play a key role in Earth science. They are used to make
predictions on timescales ranging from short-range weather forecasts to multi-century …
predictions on timescales ranging from short-range weather forecasts to multi-century …
Sea‐Ice Forecasts With an Upgraded AWI Coupled Prediction System
L Mu, L Nerger, J Streffing, Q Tang… - Journal of Advances …, 2022 - Wiley Online Library
A new version of the AWI Coupled Prediction System is developed based on the Alfred
Wegener Institute Climate Model v3. 0. Both the ocean and the atmosphere models are …
Wegener Institute Climate Model v3. 0. Both the ocean and the atmosphere models are …