The 5th EnKF Workshop Agenda, May 21-24,
2012
Conveners: Fuqing Zhang, Chris Snyder,
Ryan Torn, Takemasa Miyoshi and Ming Xue
Location: Carey Meeting Center, Rensselaerville, New York
Day 0, Monday, May 21, 2012
6:30-8:00 Dinner
DAY 1, Tuesday, May 22, 2012
7:00-8:00 Breakfast
8:00 Opening
remarks
8:20-9:40 Session
1: TROPICAL CYCLONES I 3 talks, 20 min discussion
Session
chair: Fuqing Zhang
The
Advanced Hurricane WRF Ensemble Data Assimilation System: Current status
and future plans; Ryan Torn, SUNY Alany
Performance
and plans for the PSU realtime hurricane EnKF analysis and forecast system;
Yonghui Weng, Penn State University, and Fuqing Zhang
Impact of
assimilating AMSU-A radiances on forecasts of 2008 Atlantic tropical cyclones
initialized with a limited-area ensemble Kalman filter; Zhiquan Liu (NCAR), Craig S. Schwartz,
Chris Snyder, and So-Young Ha, NCAR/MMM
10:10-11:50 Session
2: HYBRID AND ENSEMBLE VAR 4 talks, 20 min
discussion
Session
chair: Chris Snyder
Hybrid
4DVAR development at NRL: Results from two 3-month trials; David D. Kuhl,
Naval Research Laboratory, Tom Rosmond, Craig H. Bishop and Elizabeth
Satterfield
Ensemble
4DVAR for the NCEP hybrid GSI-EnKF data assimilation system: recent progress
and results; Xuguang Wang, University of Oklahoma, Ting Lei, Jeff Whitaker,
Daryl Kleist, Russ Treadon and John Derber
Assess the impact of observations in NCEP GSI-EnKF hybrid
data assimilation system through OSE
and ensemble based observation impact estimate;
Govindan Kutty Mohan Kumar and Xuguang Wang
Coupling
EnKF with 4DVar for mesoscale data assimilation; Jon Poterjoy, Penn State
University, Fuqing Zhang , Meng Zhang, Xin Zhang and Xiangyu Huang
11:50-1:30 Lunch
1:30-2:50 Session
3: FORMAL POSTER VIEWING (more
to come)
The
Kalman-Bucy Filter in the ensemble framework. Javier Amezcua, Kayo Ide,
Eugenia Kalnay, University of Maryland,
Sebastian Reich, Potsdam Universitat
Radar
Data Assimilation Using the High Resolution Ensemble Kalman Filter.
Weiguang Chang , Kao-Shen Chung
and Luc Fillion
The
Canadian High Resolution Ensemble Kalman Filter (HRENKF): Examination of
Forecast Errors at Convective Scale. Kao-Shen Chung, Weiguang Chang, Luc
Fillion and Monique Tanquay
On the effectiveness of surface assimilation in
probabilistic nowcasts of PBL profiles. Dorita Rostkier-Edelstein and
Joshua P. Hacker
Errors in Error Variance Prediction and Ensemble
Post-Processing. Elizabeth Satterfield, Craig Bishop
Improving
Short-Term QPFs over Complex Terrain with a WRF-LETKF Radar Data Assimilation
System: OSSEs on Typhoon Morakot (2009). Chih-Chien Tsai, Shu-Chih Yang,
and Yu-Chieng Liou
Observing Strategy and Observation Targeting
for Tropical Cyclones using
Ensemble-based Sensitivity Analysis and Data Assimilation.
BaoguoXie, FuqingZhang, QinghongZhang, and Jon Poterjoy
Assessing the Impact of the Horizontal
Covariance Localization Radius When Assimilating Infrared Brightness
Temperature Observations. Jason Otkins, University of Wisconsin-Madison
Assimilation of Water Vapor Sensitive
Infrared Brightness Temperature Observations during A High Impact Weather
Event. Jason Otkins, University of Wisconsin-Madison
Estimation
of Surface Fluxes with an Advanced Data Assimilation Methodology Carbon, Heat,
and Moisture *Ji-Sun Kang, *Eugenia Kalnay, *Takemasa Miyoshi, +Junjie Liu,
and #Inez Fung *University of Maryland, College Park, +NASA/JPL, #University of
California, Berkeley
The
impact of localization and observation averaging for convective-scale data
assimilation in simple stochastic models. Michael Würsch and George
C. Craig, University of Munich.
Coupled
assimilation of both atmospheric and oceanic observations for ENSO prediction
using an intermediate coupled model. Fei Zheng, and Jiang Zhu, Institute of
Atmospheric Physics, Chinese Academy of Sciences
The
CNMCA Operational LETKF Data Assimilation System: Recent Results and
Developments Lucio Torrisi, Francesca Marcucci, Antonio Vocino, Alexandre
Lanciani, CNMCA - Italian National Met. Center, Rome – Italy
A comparison of 4D-Var with 4D-En-Var. D.
Fairbairn* and S.R. Pring, * University of Surrey
Parameter
estimation in the presence of modell error. Juan J.. Ruiiz1,3 and Manuell
Pulliido2,3 Universidad Nacional de Buenos Aires, Buenos Aires, Argentina
Comparing
Representations of Model Error for Assimilation of Surface Observations. Soyoung
Ha, Chris Snyder and Judith Berner (NCAR, Boulder CO USA)
Forecast Sensitivity of an April 2012 Southern
Plains Convective Event. Christopher Bednarczyk and Brian Ancell
Atmospheric Science Group, Department of Geosciences, Texas Tech University ,
2:50-6:00 afternoon break
6:00-7:30 dinner
7:30-8:50 Session
4: PBL and AIR-SEA COUPLING
4 talks, 20 min discussion
Session
chair: Takemasa Miyoshi
Comparisons
of EnKF, 4D-Var and ECCO applied to a toy Òcoupled ocean-atmosphereÓ model;
Tamara Singleton, University of Maryland, Eugenia Kalnay, Kayo Ide and Shu-Chih
Yang
Ensemble Data Assimilation in
a Simple Coupled Climate Model: The Role of Ocean-Atmosphere Interaction.
Zhengyu Liu (University of Wisconsin), Shu Wu, Shaoqing Zhang, Yun Liu, Xinyao
Rong
Improved
ensemble-mean forecast skills of ENSO events by a zero-mean stochastic
model-error model of an intermediate coupled model. Jiang Zhu, Institute of
Atmospheric Physics, Chinese Academy of Sciences, and Fei Zheng
Development of the NCAR 4D-REKF ensemble data
assimilation and forecasting system and a comparison with DART-EnKF and WRFVAR
Yonghui Wu (NCAR), Yubao Liu, Linlin Pan, Al Bourgeois, Jason Knievel, Scott
Swerdlin, Xin Zhang and Xiang-Yu Huang,
John Pace, Frank Gallagher and Scott Halvorson
DAY 2, Wednesday, May 23, 2012
7:00-8:00 Breakfast
8:00-9:40 Session
5: OPERATIONAL IMPLEMENTATIONS 4
talks, 20 min discussion
Session
chair: Lucio Torrisi
EnKF
for global NWP: The experience at ECMWF; Mats Hamrud and Massimo Bonavita ,
ECMWF
Implementation
of Hybrid Variational-ETKF Data Assimilation at the Met Office; Peter
Jermey Data Assimilation Scientist Met Office
Environment
Canada's Regional Ensemble Kalman Filter: Some preliminary results; Seung-Jong Baek (Environmental Canada),
Luc Fillion, and Peter Houtekamer
Design thoughts for an ensemble DA scheme; Neill E. Bowler, Met Office, Exeter,
UK.
10:10-11:50 Session
6: TROPICAL CYCLONES II
4 talks, 20 min discussion
Session
chair: Eugenia Kalnay
EnKF
experiments assimilating synthetic Global Hawk HIWRAP radial velocity data for
hurricane initialization, Jason Sippel, NASA/Goddard, Scott Braun, Fuqing
Zhang and Yonghui Weng
Applying
an outer-loop to the WRF-LETKF system for typhoon assimilation and prediction,
Shu-Chih Yang and Kuan-Jen Lin
Influence
of assimilating satellite-derived high-resolution data On analyses and
Forecasts of tropical cyclone track and structure; Ting-Chi Wu (University of Miami), Hui
Liu, Sharan Majumdar, Chris Velden and Jeff Anderson
Studying
the Impact of Saharan Dust on Tropical Cyclone Evolution using WRF/Chem and
EnKF; Yongsheng Chen (York University), Jianyu Liang, and Zhiquan Liu
11:50-1:30 Lunch
1:30-2:50 Session
7: CONVECTIVE SCALE I 3
talks, 20 min discussion
Session
chair: Allen Zhao
The
Impact of Assimilating Radar Observations on Ensemble Kalman Filter Analyses
and Forecasts of the 8 May 2003 Tornadic Supercell Storm; Nusrat Yussouf (NOAA/NSSL), Edward R.
Mansell, Louis J. Wicker, Dustan M. Wheatley, David Dowell, Michael C. Coniglio
and David J. Stensrud
Analysis
of the Goshen County tornadic supercell on 5 June 2009 during VORTEX2 using
EnKF assimilation of mobile radar observations; James Marquis (Penn State
University), Yvette Richardson, Paul Markowski, David Dowell, Josh Wurman, Karen
Kosiba, and Paul Robinson.
EnKF
assimilation of storm-scale, mobile Doppler radar data into high-resolution
analyses of a weakly tornadic supercell; Robin L. Tanamachi (NSSL/OU), Ming Xue, Youngsun Jung, Keith
A. Brewster, Michael I. Biggerstaff
2:50-6:00 afternoon break
6:00-7:00 dinner
7:00-8:30 Session
8: THEORY AND ALGORITHM 4
talks, 20 min discussion
Session
chair: Jeff Anderson
Combining
inflation-free and iterative ensemble Kalman filters for strongly nonlinear
systems; Marc Bocquet
(UniversitŽ Paris-Est, CEREA joint laboratory Ecole des Ponts ParisTech and EdF
R&D, France.), Pavel Sakov
Hidden
Error Variance Theory: Deriving Optimal Combinations of Static and Flow
Dependent Variances; Elizabeth Satterfield and Craig H. Bishop (NRL,
Monterey, CA)
Empirical
Localization of Observation Impact in Ensemble Data Assimilation; Jeffrey
Anderson, NCAR Institute for Mathematics Applied to Geophysics
Assessing
the Efficiency of an Ensemble-Based Kalman Filter in Representing the Analysis
Uncertainty; Istvan Szunyogh (Texas A&M) and Elizabeth Satterfield
(NRC)
DAY 3, Thursday, May 22, 2012
7:00-8:00 Breakfast
8:00-9:40 Session
9: CONVECTIVE SCALE II 4
talks, 20 min discussion
Session
chair: Yubao Liu
Multi-scale
EnKF data assimilation and forecasts of the 10 May 2010 tornado case in the
central US domain, Youngsun Jung (University of Oklahoma), Ming Xue,
Yunheng Wang, Yujie Pan, and Kefeng Zhu
Utilizing
a cycled WRF-DART mesoscale analysis system for convection permitting forecasts.; Glen Romine (NCAR), Craig Schwartz,
Chris Snyder, Jeff Anderson
Direct
assimilation of VIS/NIR radiances and observation impact calculation in a
limited-area LETKF system;
Matthias Sommer (Hans-Ertel-Centre for Data Assimilation,
Meteorologisches Institut, LMU Muenchen, Germany), Philipp Kostka, Hendrik
Reich, Andreas Rhodin, Martin Weissmann
A Regional
GSI-EnKF Hybrid System Development and Testing for the Rapid Refresh Configuration,
Yujie Pan (University of Oklahoma), Kefeng Zhu, Ming Xue, Xuguang Wang, Jeffrey
S. Whitaker, Stanley G. Benjamin and Stephen S. Weygandt
10:10-11:30 Session
10: Grand Discussion
0 talks, 80 min discussion
Moderators:
Ryan Torn, Takemasa Miyoshi and Fuqing Zhang
11:30-1:00 Lunch
1:00 Workshop Adjourn
