SEMINAR ARCHIVE

Date

Speaker

Title

11/27/2018 Jonathan Poterjoy Progress in the Development of a Localized Particle Filter for Regional Weather Prediction
11/13/2018 Clara Draper Coupled Land/Atmosphere Data Assimilation
10/23/2018 Will McCarty Results from an OSSE Investigating a Constellation of 4-5 micron Infrared Sounders
10/09/2018 Rabindra Kumar Nayak Regional Carbon Cycle Modeling over Indian Subcontinent and Surrounding Oceans
09/25/2018 Scot Miller A tale of two satellites: estimating carbon dioxide and methane fluxes from OCO-2 and GOSAT
09/11/2018 Pablo Saide Improvements on regional aerosol predictions and impacts driven by recent NASA field campaigns
08/28/2018 Duane Waliser Atmospheric Rivers: Water Extremes that Shape Our Global Weather and Climate
06/26/2018 Karina Apodaca Variational and Hybrid data assimilation methods suitable for GOES-16, 17/GLM lightning observations
06/12/2018 Andrea Molod GEOS S2S-2_1: The GMAO High Resolution Seasonal Prediction System
05/22/2018 Lisan Yu Ocean Surface Energy and Water Budgets in Reanalyses and Observations
05/15/2018 Alexandra Jahn Assessing the Prediction Uncertainty of Arctic Sea Ice and Ocean Projections Using CESM Ensembles
04/10/2018 Sebastien Massart Recent Work on Background Error Covariance at ECMWF for Operational Analysis and Atmospheric Chemistry
04/03/2018 Adam Scaife Long Range Predictability of Winter Climate
03/13/2018 Mark Taylor Earth System Modeling on Upcoming Exascale Computers
02/27/2018 Daven Henze Dimension reduction, error estimation, and the Randomized Incremental Optimal Technique (RIOT) for large-scale Bayesian atmospheric inversions and data assimilation
02/13/2018 Morgan O'Neill "Diurnal Waves in Tropical Cyclones"
11/28/2017 Mark Buehner Recent Research on 4D-EnVar at Environment and Climate Change Canada
11/07/2017 Cecilia Bitz The First Decade of Seasonal Sea Ice Prediction: Advances and Challenges
10/24/2017 Sonya Legg Ocean mixing by breaking internal tides: processes, parameterizations and impacts
10/10/2017 Manuela Girotto Joint assimilation of SMOS brightness temperature and GRACE terrestrial water storage observations for improved soil moisture estimation
09/26/2017 Jon Reisner Climate Impact of a regional nuclear weapons exchange between India and Pakistan: An informed assessment based on high-fidelity source calculations
09/19/2017 Alexandra Konings Ecosystem-scale variations in plant hydraulic behavior
09/12/2017 Mat Evans CHAMELEON: A potential machine learning approach for atmospheric composition forecasting
09/05/2017 James Booth Evaluation of Extratropical Cyclone Precipitation and Clouds in CMIP5 and CMIP6-prototype models
05/23/2017 Paul Dirmeyer Land-Atmosphere Interactions in Models and Observations
05/16/2017 Jaime Palter Biogeochemical and Ecological Fronts: Gateways to Exchange
05/09/2017 Elizabeth A. Barnes Predictability of North Pacific Blocking and Atmospheric Rivers based on the state of the Madden-Julian Oscillation
04/25/2017 Brad Weir The GEOS-Carb reanalysis of atmospheric carbon dioxide
04/11/2017 Lorenzo Polvani Why has the tropical lower stratosphere stopped cooling for the last 20 years?
03/31/2017 Lucas Jones Monitoring Global Land-atmosphere Net Ecosystem CO2 Exchange: The SMAP Level 4 Carbon Product  
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03/28/2017 Nikki Prive The GMAO Observing System Simulation Experiment framework for numerical weather prediction
02/28/2017 David Edwards Quantifying Wildfire Emissions and associated Aerosol Species using Assimilation of Satellite CO and AOD Retrievals
02/14/2017 Steven Lohrenz Assessing Impacts of Climate and Land Use Change on Terrestrial-Ocean Fluxes of Carbon and Nutrients and Associated Ecosystem Dynamics in a River-Dominated Coastal Margin
11/29/2016 Joan Alexander Tropical waves, latent heating, and wave-driving of the tropical circulation
11/15/2016 Kevin Grise Do mid-latitude jet shifts cause cloud feedbacks?
11/08/2016 Ricardo Todling Development of 4dEnsVar at GMAO  
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10/25/2016 Pierre Gentines Interactions between the carbon and water cycles through land-atmosphere interactions: implications for drought predictions and seasonal forecasts
10/11/2016 Dick Dee Reanalysis developments at ECMWF
09/27/2016 Allison Wing Clouds, Circulation, and Climate Sensitivity in Cloud-Resolving Model Simulations of Self-Aggregation of Convection
09/13/2016 E. Robert Kursinski The Future is Now. ATOMMS: A New Radio Occultation System at cm and mm Wavelengths for Weather and Climate
08/23/2016 John Albers Factors controlling stratospheric intrusions of ozone over the western United States
05/10/2016 Thomas Lauvaux Atmospheric inversion of Greenhouse Gas sources and sinks at high resolution
05/03/2016 Chris O'Dell NASA's Orbiting Carbon Observatory-2 (OCO-2): Mission Status, Retrieval Evaluation, and Preliminary Results
04/28/2016 Laura Holt Gravity Waves in the GEOS-5 Nature Run  
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12/08/2015 Santha Akella Skin SST in GEOS Atmospheric Data Assimilation System
10/27/2015 Thomas Haine Arctic Freshwater Export: Status, Mechanisms, and Prospects
06/09/2015 Eric Kort Studying methane emissions from ground, air and space
05/26/2015 Will Seviour Extreme Variability of the Stratospheric Polar Vortex
05/12/2015 James Carton The Arctic Ocean's seasonal cycle must change
03/24/2015 Jana Kolassa Soil Moisture Retrieval from Active/Passive Microwave Observations Using a Neural Network Approach
03/10/2015 Will McCarty Past, Present, and Future Infrared Radiance Assimilation at the Global Modeling and Assimilation Office  
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02/24/2015 Young-Kwon Lim Sensitivity of Tropical Cyclones to Parameterized Convection in the NASA GEOS-5 Model
01/14/2015 Judith Perlwitz Impact of Increase in Ozone Depleting Substances on Northern Hemisphere Climate Extremes- A GEOS-5 model study
01/13/2015 Stephane Belair Better weather forecasts resulting from improved land surface processes in Environment Canada's numerical prediction systems  
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09/02/2014 Jerome Barre Multivariate chemical data assimilation, application to Observation Simulation System Experiments: a GEO-constellation
08/26/2014 Seoung Soo Lee Dependence of aerosol-cloud interactions on cloud parameterizations and model setup
06/16/2014 Hans Hersbach An Update on ERA Activities  
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05/23/2014 Jui-Lin (Frank) Li Cloud-Precipitation-Radiation-Dynamics Interaction in Global Climate Models
05/13/2014 Joan Alexander Atmospheric Waves, Winds, and Chemical Transport
05/12/2014 Remus Hanea Assisted History Matching and Optimization: A paradigm for Data Assimilation and Ensemble Prediction in Reservoir Engineering  
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03/28/2014 Roberto Buizza The ECMWF ensembles  
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03/05/2014 Paul Palmer Towards Robust Estimates of Regional Carbon Emissions and Uptake: Current and Future Challenges
01/21/2014 Tom Oda Fossil fuel CO2 emission cartography using satellite observations
01/07/2014 Randy Koster Elusive Elements of Evaporation and Runoff Behavior Hidden Within Traditional Hydrological Measurements  
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09/17/2013 Dimitris Menemenlis Assimilation of GRACE data in a global, eddying, ocean and sea ice model
06/04/2013 Stephen Penny A Hybrid Local Ensemble Transform Kalman Filter for use with Global Ocean Data Assimilation
04/30/2013 Manuela Girotto Spatial and temporal analysis of Sierra Nevada snowpack using a probabilistic reconstruction approach
04/23/2013 Jim Etro EFAS - An Architecture for Exploiting Meteorological and Oceanographic Ensembles
04/16/2013 Nidia Martinez Avellaneda Impact of spatially dependent vertical mixing on the tropical Pacific thermocline
03/05/2013 Chelle Gentemann Ocean Surface Diurnal Warming
02/26/2013 Yoo-Geun Ham Sea surface temperature in the north tropical Atlantic as a trigger for El Nino/Southern Oscillation events
02/19/2013 Winston Chao Catastrophe Concept-based Cumulus Parameterization: Correction of Systematic Errors in the Precipitation Diurnal Cycle over Land in the GEOS-5 GCM
02/05/2013 Bruno Tremblay Sea ice decline in the Arctic: an ocean mechanism  
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12/11/2012 Jasper Vrugt Uncertainty modeling in water resource, ecosystem and landscape management using Bayesian methods and data assimilation
09/21/2012 Sabrina Rainwater A mixed-resolution Local Ensemble Transform Kalman Filter
09/18/2012 Gabrielle De Lannoy Global Calibration of the GEOS-5 L-band Microwave Radiative Transfer Model over Land Using SMOS Observations  
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07/13/2012 Pinhas Alpert AOD trends over megacities based on space monitoring using MODIS and MISR
07/10/2012 Corinne A. Hartin Comparison of Subantarctic Mode Water and Antarctic Intermediate Water Formation Rates in the South Pacific between NCAR-CCSM4 and Hydrographic Observations
06/11/2012 Edward Teets Jr. NASA Dryden Applications for Goddard's Earth Observing System Model, Version 5 (GEOS-5) Data
04/24/2012 Michael Ek Land data assimilation systems at NCEP/EMC  
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04/17/2012 Carla Cardinali Operational monitor of the assimilation and forecast performance
04/10/2012 Steven Pawson Structure of the Stratosphere in GEOS-5: What have we learned from MERRA?
03/27/2012 Rene Orth Inferring soil moisture memory from runoff measurements
03/20/2012 Chris Fairall A parameterization of sea spray contributions to mass and heat fluxes in hurricanes based on breaking wave properties
02/24/2012 Xuguang Wang Ensemble-4DVAR for the NCEP hybrid GSI-EnKF data assimilation system and observation impact studies with the hybrid system
02/16/2012 Lars Nerger Recent algorithmic developments in ensemble-based Kalman filters
02/07/2012 William Read Convection, Thin Cirrus, and Dehydration in the Tropical Tropopause Layer Observed by Aura MLS and CALIPSO
01/20/2012 Gianpaolo Balsamo Process-based land-surface modeling at ECMWF: interactive versus modular scheme development?  
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01/17/2012 Myong-In Lee Dynamical Prediction of Tropical Storms Using GEOS-5 AGCM
01/13/2012 Erica McGrath-Spangler Importance of Boundary Layer Entrainment for CO2 Fluxes Over Land
12/12/2011 Jianjun Jin The dynamical and chemical discontinuities at the extratropical tropopause
11/29/2011 Ricardo Todling Use of observation residual statistics for estimating system (model) error.
11/17/2011 Leila Farhadi Estimation of Land Surface Water and Energy Balance Flux Components and Closure Relation Using Conditional Sampling  
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11/15/2011 Masahiro Watanabe and Yoshi Chikamoto Development, verification, and natural variability in MIROC5 [and] Overview of decadal climate prediction using a coupled climate model MIROC
11/03/2011 Deepthi Achuthavarier Interannual and intraseasonal variability of the South Asian monsoon in the NCEP CFS
10/18/2011 George Tselioudis Understanding Climate Feedbacks: The case for Process-Based Model Evaluation
10/11/2011 Grant Branstator Comparing Decadal Predictability Characteristics of Six CGCMs
09/13/2011 Siegfried Schubert Climate Extremes and Rossby Waves  
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06/20/2011 Nancy Baker An Overview of Navy Atmospheric Data Assimilation Research
06/07/2011 Steven Platnick Cloud Properties from MODIS: Global Statistics and Use in Climate Model Evaluation
05/17/2011 Andrew Wittenberg Whither ENSO?
03/16/2011 Chaim Garfinkel Improvement of the GEOS-5 AGCM upon upgrading the Air-Sea Roughness Parameterization
03/15/2011 Clara Draper Evaluation of ASCAT near-surface soil moisture by assimilation into the SIM hydrological model  
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02/22/2011 Peter Thornton Using site-level observations to find and fix problems in CLM4
01/11/2011 Myong-In Lee Validation of Climate Variability Represented by MERRA
01/04/2011 Winston Chao Causes and Correction of Excessive Precipitation over Steep Mountains in the GEOS-5 GCM
12/07/2010 Man Li Wu The Structure and Mechanisms of the AEJ and AEWs as Revealed By MERRA
11/30/2010 Xubin Zeng A personal journey in interdisciplinary research: from atmosphere-land-ocean-atmosphere
11/29/2010 Cecile Rousseaux Oceanographic forcing of phytoplankton dynamics in the waters off Ningaloo Reef, Western Australia
11/18/2010 Nathaniel Livesey Microwave remote sounding of atmospheric composition - some findings from MLS and future directions  
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11/09/2010 Richard Cullather Atmospheric Circulation in Reanalyses Concurrent with Recent Arctic Sea-Ice Decline
10/22/2010 Clara Deser Uncertainty in Climate Change Projections: The Role of Internal Variability
10/12/2010 Bart Forman Assimilation of Multiresolution Radiation Products into a Downwelling Surface Radiation Model  
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10/05/2010 Sara Zhang Assimilation of precipitation affected radiances in a WRF ensemble data assimilation system  
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09/28/2010 Dan Holdaway A Comparison of Vertical Staggering for Coupling Large Scale Dynamics to the Planetary Boundary Layer
09/23/2010 Tiffany Shaw Downward wave coupling between the stratosphere and troposphere in the southern hemisphere and the impact of ozone changes in the GEOS CCM
09/14/2010 Stephen Eckermann The Advanced-Level Physics High-Altitude Prototype of the Navy Operational Global Atmospheric Prediction System (NOGAPS-ALPHA)
09/02/2010 Donifan Barahona Parameterization of Aerosol-Cloud Interactions in Large Scale Atmospheric Models
08/31/2010 Martha Butler Using continental observations in global atmospheric inversions of CO2: North American carbon sources and sinks
08/17/2010 Will McCarty The Simulation of Doppler Wind Lidar Observations in Support of Future Instruments  
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07/08/2010 Santharam (Santha) Akella High resolution 4-dimensional Variational Data Assimilation for the Irminger Sea
07/01/2010 Frederic Vitart Simulation of the MJO and tropical storms in the ECMWF forecast system
06/16/2010 Viviana Maggioni Investigating the effect of satellite-rainfall error modeling on soil moisture uncertainty
05/13/2010 Ronald M. Errico & Runhua Yang Design and Validation of OSSEs at the GMAO
05/11/2010 Young-Kwon Lim Multi-model (dynamical and statistical) high-resolution seasonal prediction system: An application to the southeast US
05/06/2010 Tom Delworth Atlantic decadal variability, predictability and climatic impacts
05/03/2010 Angela Benedetti Integrated reanalyses and near-real time forecasts of atmospheric composition with focus on aerosols
04/07/2010 Dick Dee Reanalysis, uncertainties, and climate trends
03/31/2010 Yannick Tremolet Weak Constraints 4D-Var Developments
03/30/2010 Christpher Hill Collaborating towards multi-model, multi-method, CO2 flux monitoring - an ocean component.
03/25/2010 Clara Draper Near-surface soil moisture assimilation for improved soil moisture in NWP
03/11/2010 Tom Auligne Latest Developments with WRF Data Assimilation
03/05/2010 Chris Thorncroft A Multiscale Analysis of the West African Monsoon
01/15/2010 Xuguang Wang Data assimilation using a hybrid variational-ensemble approach: methodology and recent applications in numerical weather prediction
01/08/2010 In-Sik Kang Parameterization of moist physics suitable to high-resolution climate models
01/07/2010 Minghua Zhang Seasonal Variation of Marine Stratus Clouds as a Test of Cloud Feedbacks in GCMs
01/07/2010 Tomislava Vukicevic Data Assimilation of Cloud-Affected Radiances
12/10/2009 Richard Engelen Towards an operational atmospheric composition monitoring and forecasting system: the MACC project
12/01/2009 Andrew Dessler Estimates of the Water Vapor Climate Feedback during El Nino-Southern Oscillation
11/18/2009 Frank Li Applying CloudSat/A-Train and ECMWF analysis data sets to constrain and evaluate cloud, convection and radiation parameterizations in numerical models
11/10/2009 Sang-Jong Park Characteristics of water vapor transport in the atmospheric surface layer
11/05/2009 Chien Wang Modeling the climate effects of anthropogenic aerosols
10/08/2009 Kerry Cook Climate Change in Northern Africa: Current Regional Projections and the Potential for Abrupt Change
10/01/2009 Yoo-Geun Ham Initialization of air-sea coupled models for ensemble climate prediction
09/24/2009 Dr. Kingtse Mo Decadal modulation of the impact of ENSO on hydroclimate over the United States
09/10/2009 Markus Jochum Diapycnal Diffusivity - a red herring or something to worry about?
09/03/2009 Eugenia Kalnay Extensions of Ensemble Kalman Filter and Prospects for Hybrid Implementation
08/13/2009 Dylan Jones Improved Understanding of the Processes Controlling Tropospheric Ozone through Assimilation of Space-based Observations of Ozone and its Precursors
08/05/2009 Dr. Derek Posselt Probabilistic model evaluation: toward ensemble-based representations of model physics uncertainty
07/23/2009 Hung-Lung Allen Huang Development of a GPU-based High-Performance Radiative Transfer Model for the High-spectral Resolution Infrared Sounders
07/21/2009 Amal El Akkraoui Convergence of minimization algorithms for the primal and dual forms of the strong and weak constraint variational data assimilation problem.
07/20/2009 Joao Teixeira Turbulence, Clouds and Climate Models
07/13/2009 Anastasia Romanou The Ocean Carbon Cycle in the NASA-GISS Climate Model
07/09/2009 Dennis McLaughlin Towards a Feature-based Approach to Ensemble Data Assimilation
07/01/2009 Sayed Mohyeddin (Moji) Bateni Estimating surface heat fluxes from remotely sensed land surface temperature
05/20/2009 Amy Kaleita Assessment of near-surface soil moisture patterns through ground-based observations
05/18/2009 Sarah Strode A global modeling investigation of mercury emission sources and their relative contributions to mercury deposition.
05/14/2009 Bob Miller Estimating Representation Error for Data Assimilation in Ocean Models
05/07/2009 Caihong Wen A Mechanistic Study of Atlantic Meridional Overturning Circulation Changes on Tropical Atlantic Climate
04/23/2009 Frank Li Cloud Ice and liquid: A Climate Model Challenge with Signs and Expectations of Progress
04/22/2009 Michelle Gierach Analysis of the Upper Ocean Response to Hurricanes in the Gulf of Mexico Using Satellite Observations and Model Simulations
04/03/2009 William Greg Lawson Atmospheric science and data assimilation on Mars
03/25/2009 Hyungjun Kim The role of river storage in the seasonal variation of terrestrial water storage over global river basins
03/25/2009 Brian Mapes Understanding the MJO through a data assimilating model (using the NASA MERRA reanalysis system)
03/23/2009 Winston Chao The Origin of Systematic Errors in GCM Simulations of ITCZ Precipitation over the Ocean
02/25/2009 Koji Dairaku Introduction of multi-model ensembles and downscaling for regional risk assessment of climate change in Japan
02/24/2009 Nawo Eguchi Comparison study of CO2 simulations between the NIES transport model and GEOS-5
02/10/2009 Kunihiko Kodera Stratospheric impacts on tropical convection
02/05/2009 Richard Cullather Recent trends in Southern Ocean Precipitation
01/09/2009 In-Sik Kang Aspects of High Resolution Climate Modeling
2006 - 2008
12/22/2008
Hisahiroo Takashima Atmospheric aerosol and gas variations at Okinawa Island in Japan by ground-based MAX-DOAS measurement
12/12/2008
Yukiko Hirabayashi Global projections of changing risks of flood under the global warming simulated by MIROC GCM
12/09/2008
Paul Krause The Diffusion Kernel Filter
08/05/2008
Andrea Molod Modeling Near-Surface Sub-grid Scale Heterogeneity in GCMs
07/28/2008
Ricardo Todling The GMAO 4d-Var and its Adjoint-based Tools
07/24/2008
Jeff Whitaker The Impact of the Assimilation of AIRS Radiance Measurements on Short-term Weather Forecasts
07/16/2008
Dacian Daescu A note on adjoint-based observation impact measures
04/10/2008
Will McCarty The Impact of the Assimilation of AIRS Radiance Measurements on Short-term Weather Forecasts
04/07/2008
Johanna Baehr Monitoring and detecting changes in the oceanic meridional overturning circulation at 26N in the Atlantic
03/31/2008
Shu-Chih Yang Applications of coupled bred vectors to ocean data assimilation and its impact on seasonal-to-interannual forecasting
03/10/2008
Oreste Reale Improving forecast skill by assimilation of quality-controlled AIRS temperature retrievals under partially cloudy conditions.
03/10/2008
Lars Nerger Estimation of Model Bias by the Assimilation of Satellite Ocean Chlorophyll Data into a Global Model
03/03/2008
Rolf Reichle Soil moisture data assimilation: Error modeling, adaptive filtering, and the contribution of soil moisture retrievals to land\ data assimilation products
02/25/2008
Ron Gelaro Assessing the impact of observations in the NASA GEOS-5 atmospheric data assimilation system
12/06/2007
Bin Wang How accurately do coupled climate models predict the leading modes of Asian-Australian Monsoon interannual variability?
06/4/2007
Xiang-Yu Huang WRF 4D-Var: Where We Are and Where To Go
01/19/2007
Tony Hollingsworth Global and Regional Earth-System Monitoring Using Satellite and In-Situ Data (GEMS): A Progress Report
11/28/2006
Xiaohong Liu
Inclusion of Ice Microphysics in the NCAR Community Atmospheric Model Version 3 (CAM3)
11/02/2006
Brian Mapes
Suppression of Rainy Downdrafts during Tropical Cyclone Development
10/05/2006
Dara Entekhabi
Winter Climate Response to Continental Snow Anomalies
09/07/2006
Rui Xin Huang
Surface Wave Enhanced Turbulence as a Major Energy Source Sustaining in Thermohaline Circulation
07/20/2006
Shaoqing Zhang
The GFDL Coupled Data Assimilation System For Climate Detection Using a Parallelized Ensemble Filter
05/11/2006
Roger Saunders
Assimilation of Satellite Data at the UK Met Office