Presentations

List of Presentations

 Javier Amezcua  - The use of observational tendencies for data assimilation in non-Markovian systems

Brian Ancell  - Chaos seeding within perturbation experiments

Nancy Baker  - Revisiting assumptions: a critical re-examination of ocean surface wind assimilation in the U.S. Navy’s Global and Mesoscale Data Assimilation Systems

Zak Bell  - Accounting for error due to unresolved scales in data assimilation

Jeremy Berman  - The impact of warm conveyor belt forecast errors on variability in the downstream waveguide

Loïk Berre  - Simulation and diagnosis of observation, model and background error contributions in data assimilation cycling

Luca Cantarello  - Investigating satellite radiance data assimilation at different scales in an idealised convective modelling framework

David Carvalho  - NASA’s GMAO atmospheric motion vectors simulator: description and application to the MISTiC Winds concept

Marcin Chrust  - Towards operational implementation of the Object Oriented Prediction System at ECMWF

Elizabeth Cooper  - Observation operators for assimilation of satellite observations in fluvial inundation forecasting

Will Crawford  - Accounting for error in an ensemble of seasonal forecasts using a high resolution global coupled model

Sarah Dance  - Data Assimilation for the REsilient City (DARE)

Fabio Diniz  - Comparing the adjoint- and ensemble-based approaches to observation impact on short-range forecasts

Amal El Akkraoui  - How much model error in a 6h ensemble forecast?

Ron Errico  - Guidelines to consider when performing OSSEs

Steven Fletcher  - Comparisons of mixed Gaussian-lognormal, logarithmic transform and Gaussian fits all based on temperature-mixing ratio microwave retrieval systems

Javier García-Pintado  - Experiments for online estimation of model parameters for multidecadal climate reconstruction with the Community Earth System Model (CESM)

Alexander Goldstein  - New methods for the calculation and analysis of quasi-optimal adjoint perturbation

Oliver Guillet  - Modelling observation error correlations using a diffusion operator on unstructured grids

Daniel Holdaway  - Progress towards hybrid 4DVar with the FV3 dynamical core

Daisuke Hotta  - EFSO and DFS diagnostics for JMA's global data assimilation  system: their caveats and potential pitfalls

Yasutaka Ikuta  - Assimilation of GPM/DPR in km-scale hybrid-4DVar system

Marta Janisková  - Well known and less obvious applications of adjoint models: Do we explore enough their potential?

Wei Kang  - Data assimilation for models with a sparse error covariance

Maha H. Kaouri  - Gauss-Newton-type optimization methods for variational data assimilation

Takuya Kawabata  - A storm-scale particle filter for investigating predictability of convection initiation and development

Min-Jeong Kim -  Sensitivity of Different Types of Observations to NASA GEOS Hurricane Analyses and Forecasts

Daryl Kleist  - Scale-dependent localization and weighting in the FV3-GFS Hybrid Data Assimilation Scheme

Takuya Kurihana  - Assimilation with faster super observation algorithm for meteorological ‘Big Data’

Patrick Laloyaux  - The ECMWF weak constraint 4D-Var formulation

Amos Lawless  - Treating sample covariances for use in strongly coupled atmosphere-ocean data assimilation

Nora Loose  - Can existing ocean observing systems effectively constrain subsurface temperature near Greenland's outlet glaciers? - Insights from comprehensive uncertainty quantification in oceanographic inverse problems

Andrew Lorenc  - A comparison of hybrid variational data assimilation methods in the Met Office global NWP system     

Rahul Mahajan  - Forecast Sensitivity and Observation Impact (FSOI) Inter-comparison Experiment

Rohit Mangla  - Evaluation of microwave radiances of GPM/GMI for the all-sky assimilation in RTTOV framework

Sebastien Massart  - Two flavours of hybrid background error covariances for ECMWF 4D Var analysis

Richard Menard   - Ensemble variance loss of in transport models and its implication to 4Dvar

Benjamin Ménétrier  - The Normalized Interpolated Convolution on an Adaptive Subgrid (NICAS) method, a new implementation of localization for EnVar applications

Yann Michel  - Block methods for solving an ensemble of data assimilations

Andrew Moore  - Reduced-rank array modes of the California Current ocean observing system

Michael Morgan  - Using adjoint-informed optimal initial condition perturbations  to study tropical cyclone intensity change.

Nancy Nichols  - Incorporating Correlated Observation Errors in Variational Data Assimilation

Craig Oswald  - Understanding the sensitivity of cyclogenesis using adjoint analysis

Olivier Pannekoucke  - Parametric Kalman filter : toward an alternative to the EnKF ?

Ivo Pasmans  - Ensemble-variational data assimilation in the coastal ocean circulation model off Oregon-Washington (at the US West Coast)

Tim Payne  - Rapid update cycling with delayed observations

Asia Pelc  - Accelerating local ensemble tangent linear models with order reduction

Nikki Privé  - Adjoint estimation of observation impact explored with an Observing System Simulation Experiment

Adrian Sandu  - Solving robust 4D-Var data assimilation

Elizabeth A. Satterfield  - Observation informed generalized hybrid error covariance models

Ehouarn Simon  - On the use of the saddle formulation in weakly-constrained 4D-Var

Polly Smith  - Estimating forecast error covariances for strongly coupled atmosphere-ocean 4D-Var data assimilation

Timothy Smith  - A dynamical reconstruction of AMOC Variability at the mouth of the South Atlantic

Magda Sousa  - Analysis of global sea surface temperature changes under future scenarios

Răzvan Ştefănescu  - Accuracy improvement of hybrid 4DEnVar and MLEF methods

Jemima M. Tabeart  - Improving the conditioning of estimated covariance matrices

Catherine Thomas  - Adopting NCEP’s Hybrid 4DEnVar data assimilation system to the FV3GFS

Ricardo Todling  - Preliminary experiments extending the assimilation window of the GMAO Hybrid 4DEnVar

Victor Trappler  - Parameter control in presence of uncertainties: robust estimation of bottom friction

Yannick Trémolet   - The Joint Effort for Data assimilation Integration (JEDI)

Francois Vandenberghe  - Variational assimilation of GPS radio-occultation observations in rainy conditions

Sanita Vetra-Carvalho  - On improving urban flood prediction through data assimilation using CCTV images

Joanne Waller  - Doppler radial wind spatially correlated observation error: operational implementation and initial results

Akira Yamazaki  - Using the Ensemble Forecast Sensitivity to Observations (EFSO) technique for global observing system experiments (OSEs)

Nedjeljka Žagar  - Growth of forecast errors in global NWP models and inertia-gravity wave dynamics

Zoë Brooke Zibton  - Adjoint sensitivity diagnosis of the intensification of Hurricane Harvey