IROWG-4 Agenda and Presentations


Thursday, April 16, 2015

 09:15 – 09:40 Welcome and Opening
Graham Hawke (Deputy Director: Environment and Research, Bureau of Meteorology)
Welcome and Remarks by the Co-Chairs and Organizers
Axel von Engeln, Dave Ector, Tony Mannucci, John LeMarshall, Kefei Zhang
John LeMarshall
09:40 – 10:20 Advances in Radio Occultation, Science and Applications (Invited)
Rick Anthes: President Emeritus UCAR
10:20 – 10:40 Coffee Break
Morning Session 1 Use of Occultation Data in Atmospheric Physics, Meteorology, and NWP
Chair: David Ector
10:40 – 11:10   GNSS Radio Occultation activities at NOAA
Lidia Cucurull
11:10 – 11:30 Recent research on RO assimilation at Environment Canada: The low troposphere and boundary layer
Josep Aparicio
11:30 – 11:50 Experiences from implementing GPS Radio Occultation
Harald Anlauf
11:50 – 12:10 Statistically derived error covariance estimates of observational and background data
Johannes K. Nielsen
12:10 – 13:30  Lunch
Afternoon Session 1 Specific Occultation Methods and Processing 1
Chair: Axel von Engeln
13:30 – 14:00 Single Frequency Processing of Radio Occultation Data Including GPS/MET
Tony Mannucci
14:00 – 14:20 Quantification of residual ionospheric errors in GNSS RO bending angles based on end-to-end simulation data
Cong-Liang Liu
14:20 – 14:40 Impact of GNSS Clock Instability on Radio Occultation Retrievals from the COSMIC-2 Mission
John J. Braun
14:40 – 15:00 Investigating severe troposphere weather effects on GNSS signal paths using numerical ray tracing
Robert Norman
15:00 – 15:20  Coffee Break
Afternoon Session 2 Specific Occultation Methods and Processing 2
Chair: B. Schreiner
15:20 – 15:50 Impact of Filtering and Quality Control on FSI Retrieval Results
Christian  Marquardt
15:50 – 16:10 Global Observations of Tropospheric Turbulence inferred from Radio Occultation
Chi Ao 
16:10 – 16:30 Effect of small scale ionospheric variability on RO data quality
Olga Verkhoglyadova (T. Mannucci)
16:30 – 17:00 POSTERS 
Overview of KOMPSAT-5 GNSS data and its analysis for NWP model at KMA
Sung-Rae Chung
Implementation of GPS-PR data processing system for data assimilation
Hateak Kwon
Using Infrared Radiances in the Comparison of COSMIC and GRAS Dry Temperature
Michelle Feltz (Axel von Engeln)
A study on the long-term trends of different stability indices of Earth’s atmosphere -COSMIC radio occultation technique perspectives
Sree Brahmanandam Potula (withdrawn)
Total Electron content forecast model over Antarctic
Z. Bouya (M. Francis)
17:00 – 18:30 Ice-Breaker at Summit, 700 Collins St.

Friday, April 17, 2015

Morning Session 1 Use of Occultation Methodology in Atmospheric Physics, Meteorology and NWP (Remote Presentations)
Chair: John LeMarshall / Chris Tingwell
08:00 – 08:30 The Impact of different Radio Occultation Constellations on Numerical Weather Prediction
Sean Healy
08:30 – 9:00 Progress in assimilating radio occultation data at the Met Office
Chris Burrows
Morning Session 2 Use of Occultation Methodology in Atmospheric Physics, Meteorology and Climate
Chair: Rick Anthes
09:00 – 09:30 GNSS RO Data Processing for Climate Applications at JPL
Chi Ao 
09:30 – 10:00 Characterization of small systematic errors in GPS radio occultation climatologies and potential solutions
Ulrich Foelsche
10:00 – 10:30 Reference occultation processing system for cal/val and climate: a new GNSS RO retrieval chain with integrated uncertainty propagation
Gottfried Kirchengast
11:00 – 11:30 Assimilation of GNSS radio occultation data at JMA
Hiromi Owada
11:30 – 11:50 A GNSS Radio Occultation Simulation Study Examining Impacts on Severe Convective Weather Analysis and Prediction
S. Mark Leidner (Gottfried Kirchengast)
11:50 – 12:10 Reprocessing activities at EUMETSAT for Metop A/B, COSMIC and CHAMP systems: Current status and first results
Yago Andres
12:10 – 13:20 LUNCH
Afternoon Session 1 IROWG Information and Overview
Chair: Axel  von Engeln
13:20  – 14:50 Introduction and Topics
Axel von Engeln, Dave Ector, Tony Mannucci
14:50 – 15:20 Coffee Break
Afternoon Session 2  
15:20 – 17:30  IROWG Working Group Meetings

Saturday, April 18, 2015

09:00 – 13:00 IROWG Working Group Meetings

Monday, April 20, 2015


Morning Session 1 Future Occultation Advances, Network Design and Improved Data Processing
Chair: C. Ao
09:00 – 09:30 FORMOSAT-7/COSMIC-2 Progress update and its Launch Plan
Nick Yen
09:30 – 10:00 Operational Support by ESOC’s GRAS Ground Support Network – Status and Outlook
Rene Zandbergen
10:00 – 10:30  An overview of the GCOS Reference Upper-Air Network (GRUAN) and links to the radio occultation community
Greg Bodeker
10:30 – 10:50 Coffee Break
Morning Session 2 Use of Occultation data in Atmospheric Physics and Meteorology
Chair: Kefei Zhang
10:50 – 11:20 Overview of Radio Occultation Activities at EUMETSAT
Axel von Engeln
11:20 – 11:40 Tropopause height and Mapping Functions estimated by GNSS-RO Observations Suitable for Climate Investigations
Francesco Vespe (Withdrawn)
11:40 – 12:00 Dynamic statistical optimisation of GNSS radio occultation bending angles: an advanced algorithm and performance analysis results
Ying Li
12:00 – 12:20 GNSS RO Water Vapor Results & Implications
Rob Kursinski
12:20 – 13:20 LUNCH
Afternoon Session 1   
 13:20 – 14:30 IROWG Working Group Meetings
 14:30 – 15:00  Coffee Break
Afternoon Session 2 Occultation in the Ionosphere and Space Weather Science
Chair: T. Mannucci
15:00 – 15:30 Preliminary results of ionosphere measurement from GNOS on China FY-3C satellite
Guanglin Yang
15:30 – 15:50 Comparative Analysis of Ionospheric Data for Space and Ground based GNSS Signals over Low latitude regions
Raghavendra Vishnu (Withdrawn)
15:50 – 16:10 Imaging the global vertical electron density structure from the ground and space
Brett Carter
16:10 – 16:30 Intercomparisons of RO electron density using Abel inversion and data assimilation
Ho-Fang Tsai

Tuesday, April 21, 2015


Morning Session 1  Occultation in Ionospheric and Space Weather Sciences
Chair: H. F. Tsai
09:00 – 09:30 Influence of Ionospheric Scintillations on the Processing of Radio Occultation Data from the Metop Satellites
Stig  Syndergaard
09:30 – 9:50 Space Weather Services and potential improvements using RO data
Matt Francis
09:50 – 10:10  Ionospheric irregularity and its effect on radio occultation signals derived from COSMIC measurements
Xinan  Yue (Bill Schreiner)
10:10 – 10:30  Characterising  Daytime GHz Scintillation at Equatorial Region Using GNSS Radio Occultation data
Aramesh Seif (currently copyright/publication restrictions)
10:30 – 11:00 Coffee Break
Morning Session 2  Use of Occultation Methodology in Atmospheric Physics Meteorology and NWP
Chair: U. Foelsche
11:00 – 11:30 The Use of Radio Occultation for Climate Monitoring and Numerical Weather Prediction in the Australian Region
John Le Marshall
11:30 – 11:50 Recent quest for GNSS severe weather and NWP using the state of the art Australian national GNSS positioning infrastructure
Kefei Zhang
11:50 – 12:10 Future GNSS RO Impact by the Numbers (According to Harnisch et al.) + ATOMMS
Rob Kursinski
 12:10 – 13:20  LUNCH
Afternoon Session 1 Occultation Studies and Validation
Chair: Josep Aparicio
13:20 – 13:40 GPS Radio Occultation remote sensing for Antarctic atmospheric research
Simon Alexander
13:40 – 14:00 Validation of Operational Radio Occultation Data on GNOS/FY3C
Mi Liao (not yet cleared for public release)
14:00 – 14:20  Preparation of a Science Plan for the Radio Occultation Instrument on EPS-SG/MetOp-SG
Michael Kern (Axel von Engeln)
 14:20 – 14:40  Coffee Break
Afternoon Session 2 Future Occultation Missions and Ground Systems
Chair: R Kursinski
14:40 – 15:10 Ground GNSS Network Design and Operation to Support COSMIC-2
John J. Braun
15:10 – 15:40 COSMIC-2 / FORMOSAT-7: The Future of Global Weather Monitoring and Prediction
Peter Wilczynski
15:40 – 16:10 The UCAR COSMIC Data Analysis and Archive Center: Status and Future Plans
Bill Schreiner

Wednesday, April 22, 2015


Morning Session 1 Future Occultation Missions and Systems
Chair: G. Kirchengast
09:00 – 09:30 CICERO: Community Initiative for Continuing Earth Remote Observation
Tom Yunck
09:30 – 10:00 Private Sector Provision of Radio Occultation and other Satellite Data
Richard Anthes
10:00 – 10:30 Coffee Break
Morning Session 2  
10:30 – 13:00 IROWG Reporting of Sub-Groups
Workshop Wrap-up and Farewell
Lunch before you go