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  • Presentations featuring DART: The Data Assimilation Research Testbed


    Kevin Raeder Dec 2013
    Presented at the AGU Fall Meeting 2013 in San Francisco, CA
    DART: Tools and Support for Ensemble Data Assimilation Research, Operations, and Education [poster - pdf]

    Alicia Karspeck Oct 2013
    Presented at the Sixth WMO Symposium on Data Assimilation in College Park, Maryland
    An ensemble approach for the estimation of observational error variance
    With application to the nominal 1-degree POP2 ocean model.
    [poster - pdf]

    Hui Liu Oct 2013
    Presented at the Sixth WMO Symposium on Data Assimilation in College Park, Maryland
    Achieving Superior Tropical Cyclone Intensity Forecasts by Improving the Assimilation of High-Resolution Satellite Data into Mesoscale Prediction Models [poster - pdf]

    Tim Hoar Oct 2013
    Presented at the Sixth WMO Symposium on Data Assimilation in College Park, Maryland
    Ensemble Data Assimilation for Soil-Vegetation-Atmosphere Systems [poster - pdf]

    Ally M. Toure Apr 2013
    Presented at the MODIS Science Team Meeting in Silver Spring, Maryland
    Multi-Sensor Snow Data Assimilation: Part1: Assimilation of the MODIS Snow Cover Fraction the Community Land Model (CLM04) [poster - pdf]

    Tim Hoar Mar 2013
    Presented at the TR32 International Symposium "Patterns in Soil-Vegetation-Atmosphere-Systems: Monitoring, Modelling & Data Assimilation" in Bonn, Germany
    The keys of ensemble data assimilation for soil-vegetation-atmosphere systems. [talk - pdf]

    Jeff Anderson Mar 2013
    Presented at the Institute for Mathematics and its Applications (IMA) Workshop on Stochastic Modeling of the Oceans and Atmosphere, in Minneapolis, MN, USA
    Ensemble Data Assimilation for Climate System Component Models [talk - pdf]

    Tim Hoar Jan 2013
    Presented at the 93rd American Meteorological Society Annual Meeting in Austin, TX, USA
    New Developments in the Data Assimilation Research Testbed [poster - pdf]

    Jeff Anderson Jan 2013
    Presented at the 2013 AMS Special Symposium on Advancing Weather and Climate Forecasts: Innovative Techniques and Applications in Austin, TX, USA
    The Data Assimilation Research Testbed: A Community Facility for Ensemble Data Assimilation [talk - pdf]

    Jeff Anderson Dec 2012
    Presented at the NSF EarthCube Workshop: Shaping the Development of EarthCube to Enable Advances in Data Assimilation and Ensemble Prediction in Boulder, CO, USA
    The Data Assimilation Research Testbed: A Community Facility for Ensemble Data Assimilation [talk - pdf]

    Tim Hoar Dec 2012
    Presented at the Third COSMOS Workshop in Tucson, Arizona
    DART and Land Data Assimilation [talk - pdf]

    Rafael Rosolem Dec 2012
    Presented at the AGU Fall Meeting in San Francisco, California
    Data Assimilation of Cosmic-ray Derived Soil Moisture [talk - pdf]

    Alexey Morozov Dec 2012
    Presented at the AGU Fall Meeting in San Francisco, California
    Data Assimilation and Parameter Estimation for the Global Ionosphere-Thermosphere Model using the Ensemble Adjustment Kalman Filter [poster - pdf]

    Hui Liu Oct 2012
    Presented at the Sixth FORMOSAT-3/COSMIC Data Users' Workshop in Boulder, Colorado
    Improvements to WRF/DART Ensemble Assimilation System for RO Data Assimilation [talk - pdf]

    Tim Hoar Jul 2012
    Presented at the 5th International Workshop on Catchment Hydrological Modelling and Data assimilation (CAHMDA-V) in Enschede, Netherlands
    Data Assimilation with DART [talk - ppt] [talk - pptx]

    Tim Hoar Jun 2012
    Presented at the 17th Annual CESM Workshop in Breckenridge, CO, USA
    Data Assimilation with CLM & DART [talk - pdf]

    Nancy Collins: Jun 2012
    Presented at the 17th Annual CESM Workshop in Breckenridge, CO, USA
    Status of using DART with multi-instance CESM [talk - pdf]

    Kevin Raeder: Jun 2012
    Presented at the 17th Annual CESM Workshop in Breckenridge, CO, USA
    Data Assimilation with Multi-Instance CESM Components and DART [poster - pdf]

    Jeff Anderson Mar 2012
    Presented at Cornell University in Ithaca, NY, USA
    An Introduction to Ensemble Data Assimilation and the Data Assimilation Research Testbed (DART) [talk - pdf]

    Andrew Fox Mar 2012
    Presented at the 2012 Land Model Working Group in Boulder, CO, USA
    Ensemble-based Data Assimilation for the Community Land Model [talk - pdf]

    Jeff Anderson Feb 2012
    Presented at the 2012 Ocean Sciences Meeting in Salt Lake City, UT, USA
    Ensemble Data Assimilation and Uncertainty Quantification [talk - pdf]

    Alicia Karspeck Feb 2012
    Presented at the 2012 Ocean Sciences Meeting in Salt Lake City, UT, USA
    POPDART: An Ensemble Data Assimilation System for the Ocean Component of CESM [poster - pdf]

    Tim Hoar Jan 2012
    Presented at the 2012 AMS Spring Meeting in New Orleans, LA, USA
    Challenges for Robust Ocean Data Assimilation [talk - pdf]
    Land Surface Data Assimilation: DART and CLM [talk - pdf]
    New Developments in the Data Assimilation Research Testbed [poster - pdf]

    Andrew Fox Dec 2011
    Presented at the 2011 AGU Fall Meeting in San Francisco, CA, USA
    A Model-Data Fusion Approach to Integrate National Ecological Observatory Network Observations into an Earth System Model [poster - pdf]

    Yongfei Zhang (UT Austin) Dec 2011
    Presented at the 2011 AGU Fall Meeting in San Francisco, CA, USA
    Snow Data Assimilation: DART and CLM [poster - pdf]

    Jeff Anderson Dec 2011
    Presented at the 2011 AGU Fall Meeting in San Francisco, CA, USA
    A Non-Gaussian Ensemble Filter for Data Assimilation [talk - pdf]
    Challenges in Developing Coupled Earth System Model Data Assimilation [talk - pdf]
    New Developments in the Data Assimilation Research Testbed [poster - pdf]

    Alicia Karspeck Oct 2011
    Presented at the (WCRP) World Climate Research Programme Open Sciences Conference 2011 in Denver, CO, USA
    Deep transient circulation resulting from the initialization of an ocean ensemble assimilation system [poster - pdf]

    Jeff Anderson: Sep 2011
    Presented at the Earth System Prediction Capability Workshop at the University of Maryland, MD, USA
    The Data Assimilation Research Testbed: A Community Ensemble DA Facility [talk - pdf]

    Jeff Anderson: Sep 2011
    Presented at the SAMSI UQ Workshop in Research Triangle Park, NC, USA
    Ensemble Data Assimilation and Uncertainty Quantification [talk - pdf]

    Jeff Anderson, Nancy Collins: Jun 2011
    Presented at the 16th Annual CESM Workshop in Breckenridge, CO, USA
    A Wishlist of CESM Capabilities for Support of Ensemble Data Assimilation with DART [talk - pdf]

    Kevin Raeder: Jun 2011
    Presented at the 16th Annual CESM Workshop in Breckenridge, CO, USA
    Loosely Coupled Atmosphere-Ocean Data Assimilation: CAM-DART-POP [poster - pdf]

    Jeff Anderson May 2011
    Presented at the International Cooperative for Aerosol Prediction (ICAP/AEROCAST) Ensemble Forecasts and Data Assimilation in Boulder, CO, USA
    Introduction to Ensemble Kalman Filters and the Data Assimilation Research Testbed [talk - pdf]

    Jeff Anderson: Jan 2011
    Presented at the 91st Annual Meeting of the AMS in Seattle, WA, USA
    Localization and Correlation in Ensemble Kalman Filters. [talk - pdf]
    A Loosely Coupled Ocean-Atmosphere Ensemble Assimilation System. [talk - pdf]

    McLay, J., J. Hansen, J. Hacker, D. Hodyss, T. Hoar, N. Collins, T. Whitcomb, A. Reinecke, J. Anderson: 2011
    Presented at the 15th Symposium on Integrated Observing and Assimilation Systems for the Atmosphere, Oceans, and Land Surface (IOAS-AOLS), 91st AMS Annual Meeting, Seattle, WA, USA
    NOGAPS DART: A comparison of EnKF-based and local ET-based ensemble perturbations.

    Reinecke P.A., J. Doyle,: 2011
    Presented at the 91st AMS Annual Meeting, Seattle, WA, USA
    Ensemble error growth and the mesoscale predictability of cyclogenesis in the lee of the European Alps.

    Otkin, J. A., 2011:
    Presented at the High Impact Weather Working Group Workshop, Norman, OK, USA
    GOES-R ABI proxy radiance dataset generation and data assimilation activities at CIMSS.

    Otkin, J. A., D. C. Hartung, D. D. Turner, R. A. Petersen, W. F. Feltz, and E. Janzon, 2011:
    Presented at the 15th Conference on Integrated Observing and Assimilation Systems for Atmosphere, Oceans, and Land Surface, Seattle, WA, USA
    Assimilation of surface-based profiler observations during an observation system simulation experiment. Part 1: Analysis Impact.

    Hartung, D. C., J. A. Otkin, R. A Petersen, D. D. Turner, and W. F. Feltz, 2011:
    Presented at the 15th Conference on Integrated Observing and Assimilation Systems for Atmosphere, Oceans, and Land Surface, Seattle, WA, USA
    Assimilation of surface-based profiler observations during an observations system simulation experiment. Part 2: Forecast Assessment.

    Kevin Raeder Dec 2010
    Presented at the 2010 AGU Fall Meeting in San Francisco, CA, USA
    The Use of the Data Assimilation Research Testbed for Initializing and Evaluating IPCC Decadal Forecasts. [talk - pdf]
    The Data Assimilation Research Testbed: New Algorithms and Applications [poster - pdf]

    C. Lee, M. I. Richardson, W. G. Lawson, J. L. Anderson, N. Collins, T. Hoar, M. Mischna, and A. D. Toigo: Dec 2010
    Presented at the 2010 AGU Fall Meeting in San Francisco, CA, USA
    Preliminary Results from Ensemble Data assimilation of the Martian Atmosphere using TES radiances Abstract P53E-1563. [poster - pdf]

    Hui Liu Dec 2010
    Presented at the JCSDA/HFIP Workshop on satellite data assimilation for hurricane forecasting in Miami, FL, USA
    Impact of Assimilating GPS RO refractivity on Tropical Cyclone Position and Intensity Analyses and Forecasts [talk - pdf]

    Jeff Anderson Dec 2010
    Presented at the JCSDA/HFIP Workshop on satellite data assimilation for hurricane forecasting in Miami, FL, USA
    Future Directions in Ensemble DA for Hurricane Prediction Applications [talk - pdf]

    Hui Liu Nov 2010
    Presented at the NASA Sounder Workshop and Science Team Meeting in Greenbelt, MD, USA
    Improving forecasts of tropical cyclone intensity and track using AIRS water vapor observations with an ensemble data assimilation system. [talk - pdf]

    Tim Hoar Nov 2010
    Presented at CLIVAR: Evaluation of Reanalyses – Developing an Integrated Earth System Analysis (IESA) Capability in Baltimore, MD, USA
    Loosely Coupled Atmosphere-Ocean Data Assimilation: CAM-DART-POP [poster - pdf]

    Wicker, L. J., E. R. Mansell, D. C. Dowell and D. T. Dawson, Oct. 2010:
    Preprints, 25th Conf. on Severe Local Storms, Denver CO, Amer. Meteor. Soc., Paper 12B.5.
    High-resolution storm-scale numerical weather prediction using EnKF for the 8 May 2003 Moore Oklahoma tornadic supercell.

    Dowell, D., G. Romine, and C. Snyder, Oct. 2010:
    Preprints, 25th Conf. on Severe Local Storms, Denver, Colorado, Amer. Meteor. Soc., Paper 9.5.
    Ensemble storm-scale data assimilation and prediction for severe convective storms.

    C. Lee, M. I. Richardson, W. G. Lawson, and J. L. Anderson, Oct 2010
    Presented a the American Astronomical Society, DPS meeting #42, #30.09; Pasadena, CA, USA Bulletin of the American Astronomical Society, Vol. 42, p.1029
    Ensemble Data Assimilation of the Martian Atmosphere Using Temperature and Radiance Data from the Thermal Emission Spectrometer

    Tim Hoar Sep 2010
    Presented at CLIVAR Working Group on Ocean Model Development in Boulder, CO, USA
    Weakly Coupled Atmosphere-Ocean Data Assimilation: CAM-DART-POP [poster - pdf]

    Tomoko Matsuo, E. A. Araujo-Pradere, and J. L. Anderson: June 2010
    Presented at the International Beacon Satellite Symposium, Barcelona, Spain
    Ensemble Kalman Filtering for Assimilation of GPS-based Ionospheric Observations.

    Turner, D. D., J. A. Otkin, D. C. Hartung, R. Peterson, W. F. Feltz, and E. Janzon: June 2010
    10th Workshop on Infrared Remote Sensing Applications, Quebec City, QB, Canada
    Impact of assimilating retreivals of temperature and humidity profiles from a ground-based network on a winter storm forecast.

    Kevin Raeder Jun 2010
    Presented at the CESM User Group meeting 2010, Breckenridge, CO, USA
    New Ocean, Atmosphere, Land, and Sea Ice Reanalyses from CESM1 (CAM5) [poster - pdf]

    Tim Hoar Jun 2010
    Presented at the CESM User Group meeting 2010, Breckenridge, CO, USA
    POP-DART; The Leading Edge of Coupled Ocean-Atmosphere Reanalyses ["poster" - pdf]

    Jeff Anderson May 2010
    Presented at The 5th International Workshop on Ensemble Kalman Filter for Model Updating, Bergen, Norway
    Reducing the Impact of Sampling Errors in Ensemble Filters. [pdf]

    Hui Liu May 2010
    Presented at the 29th Conference on Hurricanes and Tropical Meteorology in Tucson, AZ, USA
    Impact of Assimilating Environmental Satellite Observations on Tropical Storm Position and Intensity Analyses and Forecasts [talk - pdf]

    Jeff Anderson Apr 2010
    Presented at The 4th EnKF Workshop in Rensselaerville, NY, USA
    Localization and Correlation in Ensemble Kalman Filters. [pdf]

    Otkin, J. A., and W. Lewis: Apr 2010
    Presented at The 4th Ensemble Data Assimilation Workshop, Renssellaerville, NY, USA
    Assimilation of simulated ABI infrared brightness temperatures using an ensemble Kalman filter.

    T. Hoar, Jeffrey Anderson, N. Collins, and B. Nadiga: Jan 2010
    Presented at the 14th Symposium on Integrated Observing and Assimilation Systems for the Atmosphere, Oceans, and Land Surface (IOAS-AOLS), 90th Annual AMS Meeting, Atlanta, GA USA
    POP-DART: An ensemble assimilation system for the parallel ocean program. [abstract & link to presentation]

    Otkin, J. A., and W. E. Lewis: Jan 2010:
    Presented at the 14th Symposium on Integrated Observing and Assimilation Systems for the Atmosphere, Oceans, and Land Surface, Atlanta, GA. Assimilation of simulated infrared brightness temperatures as part of an OSSE employing the Ensemble Kalman Filter.

    Jeffrey Anderson, T. Hoar, K. Raeder, N. Collins, H. Liu, G. S. Romine, and A. F. Arellano: Jan 2010
    Presented at the 14th Symposium on Integrated Observing and Assimilation Systems for the Atmosphere, Oceans, and Land Surface (IOAS-AOLS), 90th Annual AMS Meeting, Atlanta, GA USA
    DART: A community facility for ensemble data assimilation. [abstract]

    Petersen, R.A., J. A. Otkin, D. Hartung,, D. Turner, W. F. Feltz and E. Janzon 2010:
    Presented at the NOAA/NASA/FAA Aviation Requirements Workshop, Boulder, CO, USA
    A `Nationwide Network of Networks': Investigating the impacts of a potential ground-based profiling system using an Observing System Simulation Experiment.

    Otkin, J. A. 2010:
    Presented at the 17th Conference on Satellite Meteorology and Oceanography, Annapolis, MD, USA
    The relative impact of clear and cloudy sky infrared brightness temperatures within an ensemble data assimilation system.

    Turner, D., J. A. Otkin, D. Hartung, R. Peterson, W. Feltz, and E. Janzon 2010:
    Presented at the EU COST 0702: Integrated Ground-based Observations of Essential Variables for Climate and Operational Meteorology. Paris, France
    Impact of assimilating retrievals of temperature and humidity profiles from a ground-based network on a winter storm forecast.

    Otkin, J. A., and W. Lewis 2010:
    Presented at the 11th Annual WRF User's Workshop, Boulder, CO, USA
    Assimilation of simulated ABI infrared brightness temperatures using an ensemble Kalman filter data assimilation system.

    Turner, D. D., J. A. Otkin, D. C. Hartung, R. Peterson, W. F. Feltz, and E. Janzon 2010:
    Presented at the 10th Workshop on Infrared Remote Sensing Applications, Quebec City, QB, Canada
    Impact of assimilating retreivals of temperature and humidity profiles from a ground-based network on a winter storm forecast.

    Otkin, J. A., and W. E. Lewis 2010:
    Presented at the 14th Symposium on Integrated Observing and Assimilation Systems for the Atmosphere, Oceans, and Land Surface, Atlanta, GA, USA
    Assimilation of simulated infrared brightness temperatures as part of an OSSE employing the Ensemble Kalman Filter.

    Kevin Raeder Dec 2009
    Presented at the 2009 AGU Fall Meeting, San Francisco, CA, USA
    DART: A Facility for Ensemble Data Assimilation [poster - pdf]

    Jeff Anderson Dec 2009
    Presented at the Ocean Modeling Working Group meetings, Boulder, CO, USA
    Ensemble Data Assimilation for POP. [pdf]

    Hui Liu Oct 2009
    Presented at the COSMIC Meetings, Boulder, CO, USA
    Initialization of the Environment of Tropical Cyclogenesis by Assimilating RO Data using an Ensemble Filter. [pdf]

    Jeff Anderson Oct 2009
    Presented at the COSMIC Meetings, Boulder, CO, USA
    Impacts of COSMIC GPS Observations on a Climate Reanalysis. [pdf]

    Jeff Anderson Sep 2009
    Presented at the Computing in Atmospheric Sciences Workshop, Annecy, France
    Ensemble Data Assimilation for Large Atmospheric Models [pdf]

    Jeff Anderson Sep 2009
    Presented as a seminar at the ECMWF, Reading, UK
    Parallel Implementation of Sequential Ensemble Kalman Filters [pdf]

    Robert Pincus Sep 2009
    Presented at the ECMWF Seminar 2009 Diagnosis of Forecasting and Data Assimilation Systems, Reading, UK
    Assimilating clouds in perfect global models
    (or trying to - a work in slow progress).
    [pdf]

    Kevin Raeder Jun 2009
    Presented at the CCSM User Group meeting 2009, Breckenridge, CO, USA
    New Diagnostics of CAM from DART [poster - pdf]

    Nedjeljka Zagar April 2009
    Presentations at EGU, Vienna, Austria.
    Diagnosis of analysis and forecast ensembles by using normal modes [poster - pdf]
    Uncertainties of estimates of intertio-gravity energy in the atmosphere [poster - pdf]

    Dorita Rostkier-Edelstein Feb 2009
    Presented at the Institute of Earth Sciences, the Hebrew University of Jersusalem, Israel.
    Probabilistic estimation of the state of the planetary boundary layer using surface observations, a column model and an ensemble filter..

    Emanuele Di Lorenzo Dec 2008
    Presentation at AGU, San Francisco, California.
    Theory and Applications of Variational, Sequential and Bayesian Hierarchical Methods in Data Assimilation [abstract]

    Ibrahim Hoteit Dec 2008
    Presentation at AGU, San Francisco, California.
    A MITgcm/DART Ocean Analysis and Prediction System with Application to the Gulf of Mexico [poster - pdf]

    Kevin Raeder Dec 2008
    Presentation and poster at AGU, San Francisco, California.
    Diagnosis of Noise in the FV core using DART. [pdf]
    A General Purpose Data Assimilation Facility: DART. [poster]

    Dorita Rostkier-Edelstein Dec 2008
    Presented at the Department of Geophysics and Planetary Sciences, Tel-Aviv University, Tel-Aviv, Israel
    Probabilistic Nowcasting of PBL Profiles: A Factor Separation Study.

    Jeff Anderson Dec 2008
    Presented at the 2008 CAOS Workshop: Real Time Filtering and Prediction for Turbulent Signals in Weather and Climate, New York City, New York, USA
    Nonlinear, Non-Gaussian Ensemble Filters. [pdf]

    Jeff Anderson Nov 2008
    Presented at the NCAR Foothills Laboratory, Boulder, CO, USA
    Nonlinear, Non-Gaussian Ensemble Filters for Data Assimilation.

    Greg Lawson Nov 2008
    Presented at the Third International Workshop on The Mars Atmosphere: Modeling and Observations. Williamsburg, VA, USA
    Ensemble-based Data Assimilation with Mapping Datasets of the Martian Atmosphere. [pdf]

    Dorita Rostkier-Edelstein Nov 2008
    Presented at the Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel
    Probabilistic estimation of the state of the planetary boundary using surface observations, a column model and an ensemble filter.

    Jeff Anderson Oct 2008
    Presented at The University of Utah, Salt Lake City, Utah, USA
    Predicting Hurricanes and Improving Climate Models using Ensemble Data Assimilation. [ppt]

    Bill Kuo Oct 2008
    Presented at the FORMOSAT-3/COSMIC Workshop 2008, Taipei, Taiwan
    The Impact of FORMOSAT-3/COSMIC GPS RO Data on Typhoon Prediction.

    Jennifer Kay Oct 2008
    Presented at NCAR, Boulder, CO, USA
    Evaluating the atmospheric forcing on recent Arctic sea ice loss. [pdf]

    Dorita Rostkier-Edelstein Sep 2008
    Presented at the Meeting of the Israel Meteorological Society, Bet-Dagan, Israel
    Ensemble filter data assimilation: Application to probabilistic nowcasting of boundary layer profiles.

    Alicia Karspeck Aug 2008
    Presented at the Joint Statistical Meetings 2008, Denver, CO, USA
    El Niño state estimation using the ensemble Kalman filter.

    Hui Liu Aug 2008
    Presented at the Joint Statistical Meetings 2008, Denver, CO, USA
    Application of Radio Occultation Data in Analyses and Forecasts of Tropical Cyclones Using an Ensemble Assimilation System. [pdf]

    Tim Hoar Aug 2008
    Presented at the Joint Statistical Meetings 2008, Denver, CO, USA
    NCAR's Data Assimilation Research Testbed: DART. 'Plug and Play' Ensemble Data Assimilation. [pdf]

    Jeffrey Anderson Aug 2008
    Presented at the Joint Statistical Meetings 2008, Denver, CO, USA
    Using Small Ensembles in High Dimensions: Hierarchical Bayesian Approaches to Adaptive Ensemble Filters. [pdf]

    Jeffrey Anderson July 2008
    Presented at the University of Maryland, MD, USA
    A non-gaussian ensemble filter for nonlinear models and discrete structures. [pdf]

    Nedjeljka Zagar Jun 2008
    Presented at the CCSM User Group meeting 2008, Breckenridge, CO, USA
    Diagnosis of model biases by using DART [poster - pdf]

    Kevin Raeder Jun 2008
    Presented at the CCSM User Group meeting 2008, Breckenridge, CO, USA
    Diagnosis of Noise in the FV core using DART. [pdf]

    Hui Liu Apr 2008
    Presented at the Hurricanes session of the 2008 AMS, Orlando, FL, USA
    The Impact of Radio Occultation Data on Analysis of the Subtropical Anticyclone over Western Pacific Ocean [pdf]

    Jeff Anderson Apr 2008
    Presented at the Workshop on Kalman Filtering, 4-9 April 2008, Marble Falls, TX, USA
    Adaptive Inflation for Ensemble Assimilation [pdf]

    Matsuo, T., J. L. Anderson, D. R. Marsh, and A. K. Smith: 2008
    Presented to the EGU General Assembly 2008, Vienna, Austria
    Ensemble Kalman filtering for assimilation of mesosphere and lower thermosphere observations.

    Jeff Anderson Feb 2008
    Presented at the Atmosphere Model Working Group (AMWG), 14 February 2008, Boulder, CO, USA
    Using the DART-CAM Ensemble Data Assimilation System for Climate Model Development [pdf]

    Jeff Anderson Jan 2008
    Presented at the 88th AMS Annual Meeting, 20--24 January 2008, New Orleans, Louisiana, USA
    The Relation Between Ensemble Size and Expected Error in Ensemble Filter Data Assimilation [pdf]

    Josh Hacker Jan 2008
    Presented at the 12th Conference on Integrated Observing and Assimilation Systems for Atmosphere, Oceans, and Land Surface (IOAS-AOLS), 20--24 January 2008, New Orleans, Louisiana, USA
    PBL State estimates with surface observations, a column model, and an ensemble filter: Probabilistic evaluation under various mesoscale regimes. [extended abstract]

    Hui Liu Jan 2008
    Presented at the 88th AMS Annual Meeting, 20--24 January 2008, New Orleans, Louisiana, USA
    Improving Forecasts of Tropical Cyclones with Innovative GPSRO Satellite Observations [pdf of poster]
    Improving Analyses and Forecasts of the Asian Monsoon with GPS Radio Occultation Refractivity Observations [pdf of talk]

    W. G. Lawson, M. I. Richardson, D. J. McCleese, J. T. Schofield, O. Aharonson, S. B. Calcutt, P. G. J. Irwin, D. M. Kass, C. B. Leovy, S.R. Lewis, D. A. Paige, P. L. Read, F. W. Taylor, and R. W. Zurek, 2007
    Presented at the Seventh International Conference on Mars, Pasadena, California, USA
    Adapting State of the Art Data Assimilation Approaches for Use with the Mars Climate Sounder and the PlanetWRF Martian GCM. LPI Contribution No. 1353, p 3321.

    Nancy Collins Nov 2007
    Presented at Supercomputing 2007, Reno, NV, USA
    DART overview. [pdf] [animation1 (.mov)] [animation2 (.mov)] [animation3 (.mov)]

    W. G. Lawson, M. I. Richardson, D. J. McCleese, J. L. Anderson, Y. Chen, and C. Snyder 2007
    Eos Trans. AGU, 88(52), Fall Meeting Suppl.,
    Ensemble-Based Data Assimilation with a Martian GCM Abstract P11A-0251.

    Tim Hoar Nov 2007
    Talk presented at the NCAR/Univ of Wyoming Retreat, Steamboat Springs, CO, USA
    Data Assimilation Research Section - Overview [pdf] [animation1 (.mov)] [animation2 (.mpg)]

    Hui Liu Aug 2007
    Presented at SPIE, San Diego, CA, USA
    The Impacts of Radio Occultation Data on analyses and prediction of the Monsoon and hurricanes using WRF ensemble forecast system.

    Hui Liu Jul 2007
    Presented at the IUGG, Data Assimilation session, Perugia, Italy.
    Assimilation of GPS radio occultation refractivity with WRF using a non-local observation operator. [poster-pdf]

    Jeff Anderson Jun 2007
    Presented at the CCSM Summer Workshop, Breckenridge, CO, USA
    Data Assimilation for CAM - Research & Development. [poster-pdf]

    David Dowell Jun 2007
    Presented at the WRF User's Workshop, Boulder, CO, USA
    Mesoscale WRF Surface-Data Assimilation: Spring 2007 Experiments at the National Severe Storms Laboratory [pdf]

    Jeff Anderson Jun 2007
    Presented at the 22nd Conference on Weather Analysis and Forecasting/18th Conference on Numerical Weather Prediction, Park City, UT, USA
    DART: A Community Tool for Ensemble Data Assimilation Research and Development. [pdf],
    An Introduction to Ensemble Kalman Filtering. [pdf], and
    A Boxcar Kernel Filter for Assimilation of Discrete Structures (and Other Stuff). [pdf]

    Josh Hacker Jun 2007
    Presented at the 22nd Conference on Weather Analysis and Forecasting/18th Conference on Numerical Weather Prediction, Park City, UT, USA
    PBL state estimation with surface observations, a column model and an ensemble filter,

    Nancy Collins May 2007
    Presented at the LCI International Conference on High-Performance Clustered Computing, South Lake Tahoe, CA, USA
    Parallel Implementation of Ensemble Filter Algorithms for Data Assimilation. [poster-pdf]

    Kevin Raeder May 2007
    Presentation and poster at the AGU Spring meeting 2007, Acapulco, Mexico.
    Adaptive Spatially-varying Variance Inflation in an Ensemble Filter. [pdf]
    A General Purpose Data Assimilation Facility: DART. [poster]

    Josh Hacker Apr 2007
    Presented to the EGU General Assembly 2007, Vienna, Austria
    State estimation and predictability in the planetary boundary layer,

    Jeff Anderson Apr 2007
    Presented at MSRI Symposium on Climate Change, Berkeley, CA, USA.
    Using Observations to Estimate Climate Model Parameters [pdf]

    Jeff Anderson Mar 2007
    Presented at NCAR, Boulder, CO, USA.
    The Data Assimilation Research Testbed: Powerful, Adaptive, and Fast Assimilation for Geophysical Applications. [pdf]

    Ave Arellano Jan 2007
    Presented to the AMS, San Antonio, TX, USA.
    Constraining Tropospheric CO using Ensemble-based Data Assimilation [pdf]

    Jeff Anderson Jan 2007
    Talk presented to the AMS, San Antonio, TX, USA.
    Capabilities and Limitations of Ensemble Data Assimilation [pdf]

    Jeff Anderson Jan 2007
    Talk presented to the Atmospheric Modeling Working Group (AMWG), Boulder, CO, USA.
    Using the DART-CAM Ensemble Data Assimilation System for Climate Model Development. [pdf]

    D. Rostkier-Edelstein Jan 2007
    Department seminar to The Department of Geophysics and Planetary Sciences, Tel-Aviv University, Israel
    PBL State Estimation with Surface Observations, a Column Model and an Ensemble Filter.

    W. G. Lawson, M. I. Richardson, D. J. McCleese, J. T. Schofield, O. Aharonson, S. B. Calcutt, P. G. J. Irwin, D. M. Kass, C. B. Leovy, S.R. Lewis, D. A. Paige, P. L. Read, F. W. Taylor, and R. W. Zurek 2006
    Presented at the 2006 AGU Fall Meeting in San Francisco, CA, USA
    Data Assimilation With the Mars Climate Sounder abstract P23B-0061

    Hui Liu Dec 2006
    Presented at the China National Climate Center, Beijing, China
    Application of GPS radio occultation data in improving regional analyses of water vapor and temperature over tropical oceans.

    Hui Liu Dec 2006
    Talk presented at the AGU Fall meeting, San Francisco, CA, USA
    Influence of COSMIC Satellite data in improving analyses over tropical oceans

    Alexis Zubrow Oct 2006
    Presented at the 5th Annual CMAS Conference, Chapel Hill, NC, USA
    EAKF-CMAQ: Development and initial evaluation of an Ensemble Adjustment Kalman Filter based data assimilation for CO. [Extended Abstract]

    Hui Liu Oct 2006
    Talk presented at the First FORMSAT-3/COSMIC User Data Workshop, Boulder, CO, USA
    Application of GPS radio occultation refractivity in improving tropical analyses of tempeature and water vapor.

    D. Rostkier-Edelstein Oct 2006
    Talk presented to the Environmental Sciences Division of the Israel Institute for Biological Research, Israel
    PBL State Estimation with Surface Observations, a Column Model and an Ensemble Filter.

    Hui Liu Aug 2006
    Talk presented at the IEEE International Geoscience and Remote Sensing Symposium, Denver, CO, USA
    Assimilations of Global Positioning System radio occultation observations with an Ensemble filter in Atmospheric Prediction Models.

    D. Rostkier-Edelstein Aug 2006
    Talk presented at the 10th Annual George Mason University Conference on Atmospheric Transport and Dispersion Modeling, George Mason University, Fairfax, VA, USA
    Estimates of boundary layer profiles by means of ensemble-filter assimilation of near surface observations in a parameterized PBL - Application to transport and dispersion.

    Hui Liu Jun 2006
    Presented at the 7th WRF User Workshop, Boulder, CO, USA
    Exploring application of GPS RO data in improving analyses of T and Q in radiosonde sparse regions using WRF ensemble data assimilation system.

    Hui Liu Apr 2006
    Talk presented at the 2nd Ensemble Data Assimilation Workshop, Austin, TX, USA
    Exploring application of Radio Occultation measurements in Improving Analyses in traditional data sparse regions with WRF/DART ensemble data assimilation system.

    Josh Hacker Apr 2006
    Presented at the 2nd Ensemble Data Assimilation Workshop, Austin, TX, USA
    Retrieving PBL profiles with ensemble-filter assimilation: Experiments with real observations, uncovering model behavior, and finding parameter distributions.

    Hui Liu Dec 2005
    Preliminary results from assimilation of GPS radio occultation data in WRF using an ensemble filter. [ppt]

    Alain Caya 2005
    Evaluation of an Ensemble Kalman Filter for WRF against a 3D-Var Assimilation System. [pdf]

    Tim Hoar Oct 2004
    Presented at the "Workshop on Ensemble Methods" at the UK Met Office in Exeter.
    An Operational-Quality Ensemble Assimilation System for NCAR's CAM Climate Model. [pdf]