NG23A:
Advances in Data Assimilation, Predictability, and Uncertainty Quantification: Geophysical Fluid Dynamics II


Submit an Abstract to this Session


Session ID#: 63534

Session Description:
Geophysical processes are typically sparsely observed, and their dynamics are nonlinear, so that the statistics are non-Gaussian. Successful and efficient data assimilation (DA), uncertainty quantification (UQ) and prediction require that these characteristics are directly addressed.   This session focuses on ideas and advances techniques for DA, UQ and predictability, for example variational methods, (ensemble) Kalman filtering, adjoint and ensemble sensitivities, hybrid techniques, NDEnVAR, representer based approaches, Monte Carlo sampling, particle Filters as well as linear approximations to non-Gaussian/nonlinear applications and welcomes contributions from all of the geosciences, as well as the mathematical and statistical communities to share ideas that can be applied across the disciplines of the AGU and the larger scientific community.
Primary Convener:  Steven J Fletcher, Colorado State University, Cooperative Institute for Research in the Atmosphere, Fort Collins, CO, United States
Conveners:  Brian C Ancell, Texas Tech Univ-Geosciences, Lubbock, TX, United States, Derek J Posselt, NASA Jet Propulsion Laboratory, Pasadena, United States and Matthias Morzfeld, University of Arizona, Department of Mathematics, Tucson, AZ, United States
Primary Liaison:  Steven J Fletcher, Cooperative Institute for Research in the Atmosphere, Fort Collins, CO, United States
Chairs:  Steven J Fletcher, Cooperative Institute for Research in the Atmosphere, Fort Collins, CO, United States, Brian C Ancell, Texas Tech Univ-Geosciences, Lubbock, TX, United States, Dr. Raffaele Marino, CNRS, École Centrale de Lyon, Écully, France and Michael A Calkins, University of Colorado, Boulder, Department of Physics, Boulder, CO, United States
OSPA Liaison:  Steven J Fletcher, Cooperative Institute for Research in the Atmosphere, Fort Collins, CO, United States
Co-Organized with:
Nonlinear Geophysics, and Atmospheric Sciences

Cross-Listed:
  • A - Atmospheric Sciences
  • GC - Global Environmental Change
  • H - Hydrology
  • OS - Ocean Sciences

Proposed Co-Organized Session with:
  • A - Atmospheric Sciences
Index Terms:

1910 Data assimilation, integration and fusion [INFORMATICS]
3275 Uncertainty quantification [MATHEMATICAL GEOPHYSICS]
3315 Data assimilation [ATMOSPHERIC PROCESSES]
4468 Probability distributions, heavy and fat-tailed [NONLINEAR GEOPHYSICS]

Abstracts Submitted to this Session:

Developing Scale-Aware Algorithms for the Ensemble Filtering of Geophysical Flows (417810)
Yue (Michael) Ying, National Center for Atmospheric Research, Boulder, CO, United States, Jeffrey L Anderson, NCAR, Boulder, United States and Fuqing Zhang, Penn State University, University Park, PA, United States
Improving Tropical Cyclone Predictions by Assimilation of Satellite-Retrieved Precipitation with Gaussian Transformation (419898)
Cheng Da, NASA Goddard Space Flight Center, Greenbelt, United States and Eugenia Kalnay, University of Maryland College Park, Department of Atmospheric and Oceanic Science, College Park, MD, United States
Robust learning of transport maps with applications to nonlinear filtering (431178)
Daniele Bigoni1, Ricardo Baptista2, Alessio Spantini1 and Youssef Marzouk2, (1)Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, Cambridge, MA, United States, (2)Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, Cambridge, United States
Selecting Multiple Borehole Locations for Maximizing Bayesian Information Gain on Past Ice Sheet Surface Temperatures (453777)
Andrew D Davis, Massachusetts Institute of Technology, Aeronautical Engineering, Cambridge, MA, United States, Xun Huan, Sandia National Laboratories, Albuquerque, United States, Patrick Heimbach, University of Texas at Austin, Oden Institute for Computational Engineering and Sciences, Austin, TX, United States and Youssef Marzouk, Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, Cambridge, United States
Effective mass and energy fluxes in strongly compressible magnetohydrodynamic turbulence: Density-variance and compressive cross-helicity effects (402104)
Nobumitsu Yokoi, University of Tokyo, Institute of Industrial Science, Bunkyo-ku, Japan
An experimental study of sheared vortices in a rotating and stratified flow (369627)
Daphné Lemasquerier, Benjamin Favier and Michael Le Bars, Aix Marseille Univ, CNRS, Centrale Marseille, IRPHE, Marseille, France
Propagation of mesoscale gravity waves in the atmosphere – a study based on airborne and spaceborne temperature observations (445400)
Isabell Krisch1, Peter Preusse1, Cornelia Strube1, Manfred Ern1, Joern Ungermann1, Lars Hoffmann2, Felix Friedl-Vallon3, Martin Riese4 and the GLORIA team, (1)Forschungszentrum Jülich GmbH, Stratosphere, Jülich, Germany, (2)Forschungszentrum Jülich GmbH, Jülich Supercomputing Center, Jülich, Germany, (3)Karlsruhe Institute of Technology, Institute of Meteorology and Climate Research, Karlsruhe, Germany, (4)Forschungszentrum Jülich, IEK-7, Jülich, Germany

See more of: Nonlinear Geophysics