Presentations

Tutorial presentations:
Fundamentals of Adjoint Models, Ronald Errico
Fundamentals of Data Assimilation, Mike Fisher

List of all presentors and titles (link to presentation or abstract):

• Brian Ancell : " The Use of Ensemble-Based Sensitivity with Observations to Improve Predictability of Severe Convective Events "
• Ahmed Attia : " Efficient sampling strategies for non-Gaussian data assimilation "
• Thomas Augliné : " Analysis and prediction of clouds using satellite all-sky radiances "
• Jeremy Berman : " Applying Ensemble-Based Sensitivity Analysis to WRF Convection Forecasts in the Northern Great Plains "
• Loïk Berre : " Estimation and representation of background error covariances "
• Onno Bokhove : " On a 3D Model with Anisotropic Rotating Convection and Phase Changes for DA "
• Antonín Bučánek : " A dilemma of large-scales in LAM analysis "
• Vincent Chabot: " Dealing with convergence problems when accounting for correlated observation errors in image assimilation "
• Sarah L Dance : " Theoretical insight into diagnosing observation error spatial correlations using background and analysis innovation statistics "
• G. Desroziers : " 4DEnVar: link with 4D state formulation of variational assimilation and different possible implementations "
• Amal El Akkraoui : "Ensemble inflation in hybrid data assimilation"
• Mohamad El Gharamti : "Ensemble Strategies for State-Parameters Estimation in Ocean Ecosystem Models"
• Mike Fisher : " A selective look back over the last twenty years of variational data assimilation "
• Steven J. Fletcher : " Mixed lognormal-Gaussian incremental variational data assimilation "
• Alison Fowler : " The effect of model error in coupled atmosphere-ocean data assimilation "
• Alexander Goldstein : " On the dynamics and evolution of forecast uncertainty and forecast sensitivity "
• Selime Gurol : " Numerical solution for a time-parallelized formulation of 4D-Var "
• Ji-Hyun Ha : " Use and impact of conventional and satelliteobservations in a three-dimensional variationaldata assimilation system on a cubed-sphere grid "
• Daniel Holdaway : " Investigating sensitivity to dust in tropical cyclone formation using the GEOS-5 adjoint model "
• Brett Hoover : " Observation Impact on the Short Range Forecast Under Simulated Analysis/Forecast System Improvement "
• Katherine Howes : " Allowing for model error in strong constraint 4DVAR "
• Jianjun Jin : "Assimilation of precipitation measurement missions microwave radiance observations with GEOS-5 "
• Byoung-Joo Jung : " Cloudy radiance assimilation with cloud control variables "
• Jeon-Ho Kang : " Development of AIRCRAFT data processing system and impacts on a 3D-VAR system at KIAPS "
• Tom Kent : " A modified shallow water model for investigating convective-scale data assimilation "
• Daryl Kleist : " Hybrid 4D EnVar for the NCEP GFS: Implementation plans and potential for outer loops "
• Anton J. Kliewer : " Detection of non-Gaussian and lognormal characteristics of temperature and water vapor mixing ratio "
• David Kuhl : " Deriving Optimal Combinations of Static and Flow Dependent Variances using Hidden Error Variance Theory "
• S. T. K. Lang : " The impact of re-centring perturbations for ensemble forecasts "
• Heiner Lange : " Quantifying dynamical inconsistencies in EnKF data assimilation of convective storms "
• Matthew J. Lauridsen : " Nonlocal inadvertent weather modification associated with wind farms in the Central United States "
• R. Legrand : " Estimation of displacement error in a variational framework "
• Martin Leutbecher : "Can singular vectors reliably describe the distribution of forecast errors? "
• Martin Leutbecher : " On attempts to supersede multiplicative noise to represent model uncertainties in NWP "
• Zhijin Li : "Multi-scale data assimilation for fine-resolution models"
• Benjamin Ménétrier : "Optimized localization and hybridization to filter ensemble-based covariances "
• Andrew Moore : "Adjoints and ooze"
• Michael C. Morgan : " Adjustment toward "balance" in the adjoint shallow water system "
• Nancy K. Nichols : " The error of representation: basic understanding "
• Elias D. Nino : " Sequential data assimilation methods based on shrinkage covariance estimation "
• Yoichiro Ota : " Impact of observation thinning and initialization on the LETKF within JMA's global hybrid 4DVar-LETKF data assimilation system "
• Ivo Pasmans : " Hybrid ensemble-4DVAR data assimilation in a coastal ocean model "
• Tim Payne : " Rapid update cycling with overlapping windows "
• Joanna Pelc : " Towards model reduced 4D-Var in application to GMAO's data assimilation system "
• Nikki Privé : "OSSEs for Fun and Profit "
• Vishwas Rao : " Scalable parallel solution and uncertainty quantification techniques for variational data assimilation "
• Elizabeth Satterfield : " Accounting for correlated satellite observation error in NAVGEM "
• Ehouarn Simon : " Dual space multigrid strategies for variational data assimilation "
• Polly Smith : " Exploring strategies for coupled 4D-Var data assimilation using an idealised atmosphere-ocean model "
• Matthias Sommer : " Ensemble-based approximation of observation impact using an observation-based verification metric "
• Răzvan Ştefănescu : " Reduced-Order Strategies for Efficient 4D-Var Data Assimilation "
• Laura Stewart : " Assimilation of transformed retrievals obtained from IASI measurements "
• Ricardo Todling : "Insights on observation residual approaches for model and observation error estimation "
• François Vandenberghe : " Variational assimilation of GPS radio-occultation observations in rainy conditions "
• Nils van Velzen : " Autolocalization techniques for ocean modelling using OpenDA "
• Martin Verlaan : " Parameter estimation for a global tide and storm-surge model "
• Joanne A. Waller : " Diagnosing spatial and inter channel observation error statistics for Doppler radar radial wind and SEVIRI observations "
• Anthony Weaver : " Correlation operators based on the iterative solution of an implicitly formulated diffusion equation "

GMAO Head: Steven Pawson Global Modeling and Assimilation Office NASA Goddard Spac e Flight Center

Curator: Nikki Privé Last Updated: Feb 11 2015