Selected Presentations
2023
Jeff Anderson Nov 2023 :
Presented at the
NSF NCAR ACOM Seminar Series
in Boulder, CO and virtually
Improving Analysis and Prediction of Chemical Tracers and Sources with Non-Gaussian, Nonlinear Ensemble Data Assimilation
[recording]
Kevin Raeder Jan 2023 :
Presented at the
103rd AMS Annual Meeting
in Denver, CO, USA and virtually
A CESM+DART Atmospheric Reanalysis for Forcing Ocean, Land, and Other Surface Models
[pdf]
Jeff Anderson Jan 2023 :
Presented at the
103rd AMS Annual Meeting
in Denver, CO, USA and virtually
A Quantile Conserving Ensemble Filtering Framework: Next Generation Nonlinear and Non-Gaussian Data Assimilation Capabilities for DART
[pdf]
Kevin Raeder Jan 2023 :
Presented at the
103rd AMS Annual Meeting
in Denver, CO, USA and virtually
The Latest from the Data Assimilation Research Testbed: Powerful New Assimilation Algorithms, Advances in Efficiency and Capabilities, New Model and Observation Interfaces, and Novel Results
[pdf]
2022
Kevin Raeder Dec 2022 :
Presented at the
2022 AGU Fall Meeting
which was held in Chicago, IL, USA and virtually
The Data Assimilation Research Testbed; a Suite of Tools for Understanding the Earth System with Confidence.
[pdf]
Brett Raczka Jun 2022 :
Presented at the
Land Data Assimilation Community AIMES Workshop
which was held virtually
Applying the Data Assimilation Research Testbed towards improved simulations of Earth System Carbon, Water and Energy Cycling
[pdf]
Brett Raczka Jun 2022 :
Presented at the
Land Data Assimilation Community AIMES Workshop
which was held virtually
Applying Ensemble Data Assimilation to CLM
[pdf]
Moha Gharamti Jun 2022 :
Presented at the
8th International Symposium on Data Assimilation
in Fort Collins, CO, USA
A Randomized Dormant Ensemble Kalman Filter; Sampling Errors: An Alternative Look
[presentation - pdf]
[poster - pdf]
Jeff Anderson Jun 2022 :
Presented at the
8th International Symposium on Data Assimilation
in Fort Collins, CO, USA
The Data Assimilation Research Testbed: An Intro to Powerful Nonlinear and Non-Gaussian Data Assimilation Tools
[pdf]
Ben Johnson Jun 2022 :
Presented at the
8th International Symposium on Data Assimilation
in Fort Collins, CO, USA
A Comparison of Three Kalman Filters Using a Large Atmospheric General Circulation Model Ensemble
[pdf]
Kevin Raeder Jun 2022 :
Presented at the
Poster Session session of the
2022 CESM Workshop in Boulder, CO, USA
Extending the CAM6+DART Reanalysis Past 2020, for use in CLM, POP, and CICE
Data Assimilation, CAM Model Development, and Machine Learning
[pdf]
Brett Raczka Jun 2022 :
Presented at the
Land Model Working Group session of the
2022 CESM Workshop in Boulder, CO, USA
Applying the Data Assimilation Research Testbed to improve the Representation of Earth System Carbon, Water and Energy Cycling
[pdf]
Ben Johnson May 2022 :
Presented at the
NCAR High Performance Computing User Group Meeting
which was held in Boulder, CO, USA and virtually
Enhancing Predictions of the Earth by Studying Emergent Phenomena
[pdf]
Brett Raczka May 2022 :
Presented at the
Community Terrestrial Systems Model Tutorial
which was held in Boulder, CO, USA and virtually
Applying Ensemble Data Assimilation to CLM
[pdf]
Jeff Anderson Apr 2022 :
Presented at the
SIAM Conference on Uncertainty Quantification
which was held in Atlanta, GA, USA and virtually
A Quantile Conserving Particle Filter with Likelihood Localization
[pdf]
Ben Johnson Feb 2022 :
Presented at the
Ocean Sciences Meeting 2022
which was held virtually
New Capabilities in the Data Assimilation Research Testbed for the Ocean Science Community
[pdf]
Helen Kershaw Jan 2022 :
Presented at the
ISDA Data Assimilation Infrastructure - Software, Frameworks, HPC Event
which was held virtually
The Data Assimilation Research Testbed in 2022 and Beyond: Not Your Parents’ DART
[pdf]
[recording]
Ben Johnson Jan 2022 :
Presented at the
102nd AMS Annual Meeting
in Houston, TX, USA and virtually
A Comparison of Three Kalman Filters Using a Large Atmospheric General Circulation Model Ensemble
[pdf]
Kevin Raeder Jan 2022 :
Presented at the
102nd AMS Annual Meeting
in Houston, TX, USA and virtually
The Data Assimilation Research Testbed; a Suite of Tools for Understanding the Earth System with Confidence
[pdf]
2021
Brett Raczka Dec 2021 :
Presented a DART Tutorial at Auburn University in Auburn, AL, USA
CLM5-DART Tutorial: Setting up and running a global assimilation
[pdf]
Kevin Raeder Dec 2021 :
Presented at the
2021 AGU Fall Meeting
which was held in New Orleans, LA, USA and virtually
The Data Assimilation Research Testbed; a Suite of Tools for Understanding the Earth System with Confidence.
[pdf]
Brett Raczka Nov 2021 :
Presented at the
NCAR Climate and Global Dynamics Lab Seminar
in Boulder, CO, USA
Improving Carbon Cycling using Land Data Assimilation: Progress and Challenges
[pdf]
[recording]
Moha Gharamti Nov 2021 :
Presented as a lecture for APPM 5510 at the University of Colorado in Boulder, CO, USA
Hybrid Ensemble Kalman Filtering and Optimal Interpolation a New Adaptive Formulation
[pdf]
Brett Raczka Oct 2021 :
Presented a lecture to the Land-Atmosphere Interaction Group at the University of Utah in Salt Lake City, UT, USA
Land Data Assimilation using DART : Carbon cycling across the Western US
[pdf]
Jeff Anderson Sep 2021 :
Presented at the
CISL Work In Progress Seminar
which was held virtually
A General Ensemble Filtering Framework: Improved Data Assimilation for Tracers
[pdf]
Kevin Raeder Sep 2021 :
Presented at the
WCRP-WWRP Symposium on Data Assimilation and Reanalysis
which was held virtually
A CESM+DART Atmospheric Reanalysis for Forcing Ocean, Land, and Other Surface Models
[pdf]
Jeff Anderson Aug 2021 :
Presented at the
2021 Joint Statistical Meeting
which was held virtually
A General Ensemble Filtering Framework Using Quantiles
[pdf]
Moha Gharamti Jun 2021 :
Presented at
The International EnKF Workshop 2021
which was held virtually
Data Assimilation in Hydrology and Streamflow Forecasting: Hurricane Florence Flooding 2018
[pdf]
Moha Gharamti Jun 2021 :
Presented at the
Nansen Environmental and Remote Sensing Center Summer School
which was held virtually
Data Assimilation in Hydrology and Streamflow Forecasting: Hurricane Florence Flooding 2018
[pdf]
Brett Raczka Jun 2021 :
Presented virtually to the NASA Carbon Monitoring System Project, Flux Working Group
Carbon Monitoring System in Mountains (CMS-Mountains): Development and Testing in the Western U.S.
[pdf]
Moha Gharamti Jun 2021 :
Presented at the
Tackling Technical Challenges in Land Data Assimilation Workshop
which was held virtually
Enhanced Streamflow Forecasting Using Ensemble da Hurricane Florence Flooding 2018
[pdf]
Brett Raczka Jun 2021 :
Presented at the
Biogeochemistry Working Group session of the
2021 CESM Workshop in Boulder, CO, USA
Improving CLM5.0 Biomass and Carbon Exchange across the Western US using Data Assimilation (DART)
[pdf]
Kevin Raeder Jun 2021 :
Presented at the
Machine Learning: CESM-Related Efforts Cross Working Group session of the
2021 CESM Workshop in Boulder, CO, USA
The CAM6+DART Ensemble Reanalysis Provides a Variety of Datasets for Machine Learning Training and Verification Algorithms
[pdf]
Brett Raczka Jun 2021 :
Presented at the
Land Model Working Group session of the
2021 CESM Workshop in Boulder, CO, USA
Opportunities for Data Assimilation in Land Surface Modeling
[pdf]
Kevin Raeder Jun 2021 :
Presented at the
Poster Session session of the
2021 CESM Workshop in Boulder, CO, USA
A CAM6+CLM5 Ensemble Reanalysis for Forcing CESM Ice Models and Data Assimilation
[pdf]
Jeff Anderson Mar 2021 :
Presented at the
2021 SIAM Conference on Computational Science and Engineering
which was held virtually
Ensemble Kalman Filters for Data Assimilation: An Overview and Future Directions
[pdf]
Moha Gharamti Mar 2021 :
Presented at
2021 SIAM Conference on Computational Science and Engineering
which was held virtually
Inflation in Ensemble Filters: Why, How and When?
Real High-Dimensional Atmospheric and Hydrologic Applications
[pdf]
Jeff Anderson Mar 2021 :
Presented at the
2021 SIAM Conference on Computational Science and Engineering
which was held virtually
Non-Gaussian, Nonlinear Extensions for Ensemble Filter Data Assimilation with a Marginal Adjustment Rank Histogram Filter
[pdf]
Jeff Anderson Feb 2021 :
Presented at the
Ludwig Maximilian University of Munich Colloquium in Data Science
which was held virtually
Removing the Kalman from the Ensemble Kalman Filter
[pdf]
Moha Gharamti Jan 2021 :
Presented at the
101st AMS Annual Meeting
which was held virtually
Improved Streamflow Prediction using WRF-Hydro and DART: Recent Advances and Developments
[pdf]
Jeff Anderson Jan 2021 :
Presented at the
101st AMS Annual Meeting
which was held virtually
Using More Trusted Observations to Reduce Systematic Error in Less Trusted Observations using Ensemble Data Assimilation
[pdf]
2020
Fernandez Gomez, I., Kodikara, T., Codrescu, S., Heymann, F., Borries, C., & Schlicht, A., 2020:
Presented at SPP 2020, Potsdam, Germany
The effect of neutral mass density data assimilation on the quality of thermosphere-ionosphere state estimation.
[abstract]
Moha Gharamti Nov 2020 :
Presented to the UCAR Executive Committee of the Board of Trustees
Improving Earth System Model Predictions using Data Assimilation: Research and Applications
[presentation - pdf]
Moha Gharamti Nov 2020 :
Presented at the
AGU Fall Meeting which was held virtually
Hydro-DART: Ensemble Streamflow Data Assimilation Using WRF-Hydro and DART
[pdf]
Jeff Anderson Sep 2020 :
Presented at the Workshop on Machine Learning, Data Mining and Data Assimilation in Geospace (LMAG2020) which was held virtually
Using the Data Assimilation Research Testbed for Geospace Applications:
Successes and Challenges in Ensemble Assimilation for Strongly-Forced Systems
[pdf]
Brett Raczka Aug 2020 :
Presented at the
2020 ESA Annual Meeting
held virtually.
Towards a complex terrain Carbon Monitoring System (CMS-Mountains): Development and testing in the western U.S.
[abstract]
[poster - pdf]
Kevin Raeder Jun 2020 :
Presented at the
Earth System Prediction Working Group session of the
2020 CESM Workshop in Boulder, CO, USA
A New CAM6+DART 80-Member Ensemble Reanalysis for 2011-2019:
Initial Conditions for CAM, CLM and CICE Forecasts and Forcing for POP, CLM and CICE
[pdf]
Jeff Anderson Jan 2020 :
Presented at the
AMS Centennial Meeting 2020 in Boston, MA, USA
Nonlinear, Non-Gaussian Extensions for Ensemble Filter Data Assimilation.
[pptx]
[pdf]
Results from an Ensemble Reanalysis with the Community Earth System Model 2.1.
[pptx]
[pdf]
The Data Assimilation Research Testbed: Nonlinear Algorithms and Novel Applications
for Community Ensemble Data Assimilation
[poster - pdf]
Moha Gharamti Jan 2020 :
Presented at the
AMS Centennial Meeting 2020 in Boston, MA, USA
A new adaptive hybrid ensemble Kalman filter and optimal interpolation.
[pdf]
Tim Hoar Jan 2020 :
Presented at the
AMS Centennial Meeting 2020 in Boston, MA, USA
Hydro-DART: Ensemble Streamflow Assimilation with WRF-Hydro and the Data Assimilation Research Testbed.
[pptx]
[pdf]
2019
Jeff Anderson Dec 2019 :
Presented at the
AGU Fall Meeting 2019 in San Francisco, CA, USA
Nonlinear, Non-Gaussian Extensions for Ensemble Filter Data Assimilation
[pptx]
[pdf]
Results from an Ensemble Reanalysis with the Community Earth System Model 2.1
[pptx]
[pdf]
The Data Assimilation Research Testbed: Nonlinear Algorithms and Novel Applications
for Community Ensemble Data Assimilation
[poster - pdf]
Kevin Raeder Dec 2019 :
Presented at the
AGU Fall Meeting 2019 in San Francisco, CA, USA
Results from an Ensemble Reanalysis with the Community Earth System Model 2.0
[presentation - pdf]
Jeff Anderson Nov 2019 :
Presented at the CISL Seminar Series in Boulder, CO, USA
CISL’s Data Assimilation Research Section: Accelerating NCAR Science with Ensemble Data Assimilation
[youtube]
[pptx]
[pdf]
Moha Gharamti Nov 2019 :
Presented as a lecture for APPM 5510 at the University of Colorado in Boulder, CO, USA
Adaptive (Prior|Posterior?) Inflation for Ensemble Kalman Filters
[pdf]
Moha Gharamti Sep 2019 :
Presented at the International Computing in the Atmospheric Sciences in Stresa, Italy
Data Assimilation using WRF-Hydro: the US National Water Model Application to Hurricane Florence
[pdf]
Kevin Raeder Jun 2019 :
Presented at the CESM Earth System Prediction Cross Working Group Session in Boulder, Colorado
An Ensemble Reanalysis with CAM6: Initial Conditions for Ensemble ESP & Realistic Forcing for CESM Models
[pdf]
Moha Gharamti Feb 2019 :
Presented at the 2019 SIAM Conference on Computational Science and Engineering in Spokane, WA, USA
Data Assimilation using WRF-Hydro: the US National Water Model Application to Hurricane Florence
[pdf]
Jeff Anderson Jan 2019 :
Presented at the
AMS Annual Meeting 2019 in Phoenix, AZ, USA
Nonlinear, Nongaussian Ensemble Data Assimilation with Rank
Regression and a Rank Histogram Filter
[pptx]
[pdf]
2018
Tim Hoar Dec 2018 :
Presented at the
AGU Fall Meeting 2018 in Washington DC, USA
Hydro-DART: Ensemble Streamflow Assimilations with WRF-Hydro and the
Data Assimilation Research Testbed.
[talk - pdf]
The Data Assimilation Research Testbed (DART): Ensemble Data
Assimilation for NCAR Community Earth System Models
[poster - pdf]
Kevin Raeder June 2018 :
Presented at the CESM Atmosphere Model Working Group Session in Boulder, Colorado
Using DART Tools for CAM Development
[pdf]
Kevin Raeder June 2018 :
Presented at the CESM Joint Chemistry Climate and Whole Atmosphere
Working Group Session in Boulder, Colorado
A Unified DART Ensemble Data Assimilation Capability for CAM(-CHEM), WACCM,
and WACCM-X
[pdf]
Jeff Anderson May 2018 :
Presented at the
Workshop: Atmosphere, Oceans, and Computational
Infrastructure
at JPL/Caltech, California
DA and Short-term Prediction Motivate the Need for Careful Software
Development In Earth System Models: A Case Study
[pptx]
[pdf]
Tim Hoar Apr 2018 :
Presented at the Terrestrial Systems Research: Monitoring,
Prediction and High Performance
Computing in Bonn Germany
Ensemble Data Assimilation with the Community Land Model and the US
National Water Model
[poster - pdf]
Jeff Anderson Mar 2018 :
Presented at the 6th International Symposium on Data
Assimilation in Munich,
Germany
Exploiting Nonlinear Relations between Observations and State
Variables in Ensemble Filters
[pptx]
[pdf]
Jeff Anderson Jan 2018 :
Presented at the AMS Annual Meeting
2018 in Austin, TX, USA
Exploiting Nonlinear Relations between Observations and State
Variables in Ensemble Filters
[pptx]
[pdf]
Using the Data Assimilation Research Testbed for Climate System
Applications
[pptx]
[pdf]
Moha Gharamti Jan 2018 :
Presented at the AMS Annual Meeting
2018 in Austin, TX, USA
Adaptive Prior Inflation for Ensemble Filters: Application to a
Large-Scale Atmospheric Model
[talk - pdf]
Ensemble Data Assimilation for Very Large Atmosphere, Ocean and
Coupled Models with the Data Assimilation Research Testbed
[poster - pdf]
2017
Kevin Raeder Dec 2017 :
Presented at the AGU Fall Meeting
2017 in New Orleans, LA, USA
Empowering Geoscience with Improved Data Assimilation Using the Data
Assimilation Research Testbed “Manhattan” Release
[poster - pdf]
Moha El Gharamti Jun 2017 :
Presented at the 12th International EnKF
Workshop
in Os, Norway
Enhanced Adaptive Inflation Algorithm for Ensemble Filters
[talk - pdf]
Moha El Gharamti Feb 2017 :
Presented at the ASLO 2017 Ocean Sciences Meeting: Mountains to the
Sea in Honolulu, Hawaii
Biological Reanalysis with Online Parameter Estimation in the North
Atlantic and the Arctic
[talk - pptx]
Jeff Anderson 28 Aug 2017 - 1 Sep 2017 :
Presented at the Nanjing DA tutorial in Nanjing, China
Introduction to Data Assimilation
[pptx]
[pdf]
Practical Implementations of the Ensemble Kalman Filter
[pptx]
[pdf]
Parallel Implementations of Ensemble Kalman Filters for Huge
Geophysical Models
[pptx]
[pdf]
Methods for Computing Localization of Observation Impacts in
Ensemble Kalman Filters
[pptx]
[pdf]
Assimilating Observations with Spatially and Temporally Correlated
Errors in a Global Atmospheric Model
[pptx]
[pdf]
Jeff Anderson 21 Aug 2017 :
Presented at The 7th International Workshop on Catchment
Hydrological Modeling and Data
Assimilation in Xi’an, China
Ensemble Data Assimilation for Observations with Spatially and
Temporally Correlated Errors
[pptx]
[pdf]
Jeff Anderson 18 Aug 2017 :
Presented at the Training day for The 7th International Workshop on
Catchment Hydrological Modeling and Data
Assimilation in Xi’an, China
Basic Concept of Land Surface Data Assimilation
[pptx]
[pdf]
Practical Implementations of the Ensemble Kalman Filter (with a
focus on Land Surface Data Assimilation)
[pptx]
[pdf]
Kevin Raeder Jun 2017 :
Presented at the CESM 2017
Workshop in
Boulder, CO, USA
Ensemble Data Assimilation for Very Large Atmosphere, Ocean and
Coupled Models with the Data Assimilation Research Testbed
[poster - pdf]
It has the same title as the AMS 2017 poster, but has somewhat
different content.
Kevin Raeder Jan 2017 :
Presented at the AMS Annual Meeting
2017 in Seattle, WA, USA
Ensemble Data Assimilation for Very Large Atmosphere, Ocean and
Coupled Models with the Data Assimilation Research Testbed
[poster - pdf]
2016
Tim Hoar Dec 2016 :
Presented at the AGU Fall Meeting
2016 in San Francisco CA, USA
DART: A Community Facility Providing State-of-the-Art, Efficient
Ensemble Data Assimilation for Large (Coupled) Geophysical Models
[poster - pdf]
Jeff Anderson Apr 2016 :
Presented at the EGU General Assembly 2016
in Vienna, Austria
Assimilating Observations with Spatially and Temporally Correlated
Errors in a Global Atmospheric Model
[pptx]
[pdf]
Jeff Anderson Apr 2016 :
Presented at the SIAM Conference on Parallel Processing in
Scientific Computing in Paris, France
Parallel Implementations of Ensemble Kalman Filters for Huge Geophysical Models
[pptx]
[pdf]
Jeff Anderson Jan 2016 :
Presented at the AMS Annual Meeting
2016 in New Orleans LA, USA
Assimilating Observations with Correlated Errors in an ensemble
Kalman filter
Kevin Raeder Jan 2016 :
Presented at the AMS Annual Meeting
2016 in New Orleans LA, USA
DART: New Research Using Ensemble Data Assimilation in Geophysical
Models
[poster - pdf]
2015
Tim Hoar Dec 2015 :
Presented at the AGU Fall Meeting
2015 in San Francisco CA, USA
DART: New Research Using Ensemble Data Assimilation in Geophysical
Models
[poster - pdf]
Jeff Anderson Oct 2015 :
Presented at the State University of New York at Albany in Albany,
New York, USA
Building State-of-the-Art Forecast Systems with the Ensemble Kalman
Filter
[pptx]
[pdf]
Kevin Raeder Jun 2015 :
Presented at the 20th Annual CESM
Workshop in Breckenridge
CO, USA
DART Data Assimilation with CESM Models
[poster - pdf]
Tim Hoar May 2015 :
Presented at the STATMOS Summer School in Data
Assimilation
in Boulder CO, USA
Getting to know the Data Assimilation Research Testbed - DART
[presentation - pdf]
Kevin Raeder Feb 2015 :
Presented at the CESM Atmospheric Modeling Working
Group
in Boulder CO, USA
DART Initial Conditions for a Refined Grid CAM-SE Forecast of
Hurricane Katrina
[pdf]
Kevin Raeder Jan 2015 :
Presented at the AMS Annual Meeting
2015 in Phoenix AZ, USA
DART: Tools and Support for Ensemble Data Assimilation Research,
Operations, and Education (same title as last year, different
content!)
[poster - pdf]
Tim Hoar Jan 2015 :
Presented as part of the Colloquium Series in the Computational
Science Deparment of San Diego State University in San Diego CA,
USA
The keys to (successful) ensemble data assimilation.
[pdf]
2014
Tim Hoar Dec 2014 :
Presented at the AGU Fall Meeting
2014 in San Francisco CA, USA
DART: Tools and Support for Ensemble Data Assimilation Research,
Operations, and Education (same title as last year, different
content!)
[poster - pdf]
Open-Source Data Assimilation for Land Models and Multiscale
Observations.
[poster - pdf]
Jeff Anderson, Tim Hoar Oct 2014 :
Presented at the International Cooperative for Aerosol Prediction
Meeting in Boulder CO, USA
Verification of Ensemble Forecasts
Anderson, part I:
[pdf]
Hoar, part II:
[pdf]
Tim Hoar Sep 2014 :
Presented at the Catchment-based Hydrological Model Data
Assimlation (CAHMDA VI) and Hydrologic Ensemble Prediction
Experiment (HEPEX-DAFOH III) Joint
Workshop
in Austin TX, USA
CAHMDA/DAFOH Ensemble Data Assimilation Tutorial
[agenda - pdf]
[Introduction - pdf]
Nancy Collins June 2014 :
Presented to the ocean modeling research section of
CMCC in Lecce, Italy
Scalable Computing Challenges in Ensemble Data Assimilation
[pdf]
Tim Hoar Jun 2014 :
Presented at the 19th Annual CESM
Workshop in Breckenridge
CO, USA
CESM, CLM, Observations, and Assimilation
[pdf]
Kevin Raeder Feb 2014 :
Presented at the CESM Atmospheric Modeling Working
Group
in Boulder CO, USA
Comparing CAM-FV and CAM-SE in a ‘perfect model’ data assimilation
environment
[pdf]
Helen Kershaw Feb 2014 :
Presented at the SIAM Conference of Parallel Processing for
Scientific Computing 2014 in
Portland, OR, USA
Parallelization Challenges for Ensemble Data Assimilation
[pdf]
Tim Hoar Jan 2014 :
Presented at the AMS Annual Meeting
2014 in Atlanta GA, USA
DART: Tools and Support for Ensemble Data Assimilation Research,
Operations, and Education
[poster - pdf]
Ensemble data assimilation for soil-vegetation-atmosphere systems.
[pdf]
2013
Kevin Raeder Dec 2013 :
Presented at the AGU Fall Meeting
2013 in San Francisco CA, USA
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 MD, USA
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 MD, USA
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 MD, USA
Ensemble Data Assimilation for Soil-Vegetation-Atmosphere Systems
[poster - pdf]
Nancy Collins Aug 2013 :
Presented at the FRCRC
Symposium
in Laramie WY, USA
Scalable Computing Challenges in Ensemble Data Assimilation
[pdf]
Nancy Collins Jun 2013 :
Presented at the 18th Annual CESM
Workshop in Breckenridge
CO, USA
CESM/DART: An ensemble data assimilation system for fully coupled
models.
[pdf]
Tim Hoar Jun 2013 :
Presented at the 18th Annual CESM
Workshop in Breckenridge
CO, USA
Data Assimilation for CLM:a comprehensive overview in 12 minutes!
[pdf]
Ally M. Toure Apr 2013 :
Presented at the MODIS Science Team
Meeting in
Silver Spring MD, USA
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.
[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
[pdf]
Kevin Raeder Feb 2013 :
Presented at the CESM Atmospheric Modeling Working
Group
in Boulder CO, USA
Data Assimilation with SE-CAM and DART
[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
[pdf]
2012
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
[pdf]
Tim Hoar Dec 2012 :
Presented at the Third COSMOS
Workshop in
Tucson AZ, USA
DART and Land Data Assimilation
[pdf]
Rafael Rosolem Dec 2012 :
Presented at the AGU Fall
Meeting in San Francisco CA, USA
Data Assimilation of Cosmic-ray Derived Soil Moisture
[pdf]
Alexey Morozov Dec 2012 :
Presented at the AGU Fall
Meeting in San Francisco CA, USA
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
[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
[ppt]
[pptx]
Tim Hoar Jun 2012 :
Presented at the 17th Annual CESM Workshop in Breckenridge, CO, USA
Data Assimilation with CLM & DART
[pdf]
Nancy Collins Jun 2012 :
Presented at the 17th Annual CESM Workshop in Breckenridge, CO, USA
Status of using DART with multi-instance CESM
[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)
[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
[pdf]
Jeff Anderson Feb 2012 :
Presented at the 2012 Ocean Sciences
Meeting in Salt Lake City, UT, USA
Ensemble Data Assimilation and Uncertainty Quantification
[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 Annual
Meeting in New Orleans, LA, USA
Challenges for Robust Ocean Data Assimilation
[pdf]
Land Surface Data Assimilation: DART and CLM
[pdf]
New Developments in the Data Assimilation Research Testbed
[poster - pdf]
2011
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
[pdf]
Challenges in Developing Coupled Earth System Model Data
Assimilation
[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
[pdf]
Jeff Anderson Sep 2011 :
Presented at the SAMSI UQ
Workshop
in Research Triangle Park, NC, USA
Ensemble Data Assimilation and Uncertainty Quantification
[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
[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
[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.
[pdf]
A Loosely Coupled Ocean-Atmosphere Ensemble Assimilation System.
[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.
2010
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.
[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
[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
[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.
[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
[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.
2009
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.
2008
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.
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]
2007
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.
2006
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.
2005
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]
2004
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.