8th International Radio Occultation Working Group Meeting - IROWG-8

Agenda Track

Wednesday, April 7 Thursday, April 8 Friday, April 9 Monday, April 12 Tuesday, April 13

View the presentation abstract by clicking on a title.

Please note that times listed are US EDT (UTC -4). Convert the time to your local time.

Wednesday, April 7
Time (US EDT)	Session/Title	Presenter	Presentation
8:59	Welcome and Logistics
9:09	Keynote Use of Radio Occultation (RO) data in NOAA/NWS for environmental modeling: Current status and future challenges	Michael Farrar Director, National Centers for Environmental Prediction (NCEP)	Download
9:39	IROWG-8 Welcome Remarks	IROWG Co-chairs: Uli Foelsche, Uni Graz Sean Healy, ECMWF	Download
9:59	Break
10:09	Invited Talk - Receiver Technology and Innovative RO Techniques GNSS Remote Sensing: Overview and recent developments	Jens Wickert Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences	Download
10:34	Q&A
10:39	Break
10:44	Two Parallel Sessions Session 1: Receiver Technology and Innovative RO Techniques
10:44	NOAA’s Radio Occultation Architecture: Current Status and Future Plans	Vanessa Griffin NOAA NESDIS	Download
10:59	FORMOSAT-7/COSMIC-2 Mission Update	Chung-Huei Vicky Chu National Space Organization	Download
11:14	Acquisition and Use of Commercial RO Data at NOAA	Martin McHugh NOAA	Download
11:29	Data Policy Development for Commercial RO Data Purchase and Use	Kate Becker NOAA NESDIS	Download
11:44	Science Utilizing Data from Spire Global as part of the NASA Commercial SmallSat Data Acquisition Program	Will McCarty NASA Goddard Space Flight Center	Download
10:44	Session 2: Numerical Weather Prediction (NWP)
10:44	An investigation of COSMIC-2 impact at NOAA	Lidia Cucurull NOAA	Download
10:59	An evaluation of GNSS-RO data from NOAA Commercial Radio Occultation Purchase using the NRL global NWP system	Benjamin Ruston US Naval Research Laboratory	Download
11:14	Impact of Spire and COSMIC-2 data in the ECMWF and Met Office NWP systems	Katrin Lonitz ECMWF	Download
11:29	Investigation of saturation of information from GPS-RO with the Global Modeling and Assimilation Office Observing System Simulation Experiment	Nikki Privé Morgan State University/GESTAR	Download
11:44	Recent impact studies on GNSS-RO data at Météo-France	Dominique Raspaud METEO-FRANCE (CNRM)	Download
11:59	Break
12:04	Breakout Group Instructions
12:14	Break
12:19	Four Parallel Breakout Groups Receiver Technology and Innovative RO Techniques Breakout Group Numerical Weather Prediction (NWP) Breakout Group Space Weather Breakout Group Climate Breakout Group
1:19	Adjourn

Thursday, April 8
Time (US EDT)	Session/Title	Presenter	Presentation
8:59	Welcome and Logistics
9:09	Invited Talk - Numerical Weather Prediction (NWP) Assimilating GNSS RO observations into NOAA operations	Hui Shao Joint Center for Satellite Data Assimilation (UCAR)	Download
9:34	Q&A
9:39	Break
9:49	Two Parallel Sessions Session 1: Receiver Technology and Innovative RO Techniques
9:49	Commercial RO Becomes Reality: Rapid Growth, External Validation, and Operational Assimilation of Spire RO	Dallas Masters Spire Global	Download
10:04	The CICERO constellation: Status, operations and future plans	Alex Saltman GeoOptics	Download
10:19	Quality Assessment of the Commercial Weather Radio Occultation Data for GeoOptics and SPIRE and inter-comparison to COSMIC-2	Shu-peng Ho NOAA/STAR	Download
10:34	Processing GeoOptics Radio Occultation Data at NOAA/STAR using the Full Spectrum Inversion method	Loknath Adhikari CISESS, UMD; NOAA/STAR	Download
10:49	Break
10:59	The Validation and Application of FORMOSAT-7/COSMIC-2 Radio Occultation Data from Taiwan Team	Shu-Ya Chen GPS Science and Application Research Center, National Central University	Download
11:14	COSMIC 1D-Var Update and Validation	Tae-Kwon Wee COSMIC Program, UCAR	Download
11:29	COSMIC-2 random error variances using the three-cornered hat method	Therese Rieckh COSMIC	Download
11:44	COSMIC-2 temperature and specific humidity soundings in Hurricane Dorian (2019)	Richard Anthes UCAR COSMIC Program	Download
9:49	Session 2: Numerical Weather Prediction (NWP)
9:49	Assessment of New Radio Occultation Measurements at the Global Modeling and Assimilation Office	Will McCarty NASA Global Modeling and Assimilation Office	Download
10:04	Assimilation of data from remote and in-situ platforms for improved numerical weather prediction	Md Nurul Huda Virginia Polytechnic Institute and State University	Download
10:19	Study on Atmospheric gravity wave propagations from the Troposphere to Mesosphere using GNSS Satellite Radio Occultation measurements	Toyese Tunde Ayorinde Instituto Nacional de Pesquisas Espaciais (INPE), São José dos Campos, SP, Brazil	Download
10:34	Three-dimensional Structures of Tropical Nonmigrating Tides Resolved from COSMIC-2 GNSS Radio Occultation Data	Zhen Zeng UCAR	Download
10:49	Break
10:59	Analyzing Constellation Performance for the Radio Occultation Tomography of Internal Gravity Waves	Riley Fitzgerald Massachusetts Institute of Technology	Download
11:14	Using Radio Occultation to Detect Clouds in the Middle and Upper Troposphere	Jeana Mascio Atmospheric and Environmental Research	Download
11:29	Advances in Airborne Radio Occultation and Contributions to the Atmospheric Rivers Reconnaissance Program 2021	Jennifer Haase Scripps Institution of Oceanography, University of California San Diego	Download
11:44	Evaluation of GNSS Radio Occultation Observations in Atmospheric Rivers	Michael Murphy Scripps Institution of Oceanography, University of Californian San Diego	Download
11:59	Break
12:04	Four Parallel Breakout Groups Receiver Technology and Innovative RO Techniques Breakout Group Numerical Weather Prediction (NWP) Breakout Group Space Weather Breakout Group Climate Breakout Group
1:04	Adjourn

Friday, April 9
Time (US EDT)	Session/Title	Presenter	Presentation
8:59	Welcome and Logistics
9:09	Invited Talk - Space Weather Space Weather observed by ionospheric GNSS Radio Occultation	Jann-Yenq Liu Center for Astronautical Physics and Engineering, National Central University, Taiwan
9:34	Q&A
9:39	Break
9:49	Two Parallel Sessions Session 1: Space Weather
9:49	Validation of COSMIC-2 Space Weather Science Products	Paul Straus The Aerospace Corporation	Download
10:04	Processing and Validation of FORMOSAT-7/COSMIC-2 Absolute Total Electron Content Observations	Nicholas Pedatella High Altitude Observatory, National Center for Atmospheric Research & COSMIC Program Office, University Corporation for Atmospheric Research	Download
10:19	Exploring ionosphere variabilities using FORMOSAT-7/COSMIC-2 based global ionosphere specification	Charles Lin Department of Earth Sciences, National Cheng Kung University, Tainan, Taiwan	Download
10:34	Ionospheric Data Products Measured from Spire’s Nanosatellite Constellation	Vu Nguyen Spire Global, Inc.	Download
10:49	Break
10:59	GRAS on Metop-A ionospheric extension: preliminary results and future perspectives	Riccardo Notarpietro EUMETSAT	Download
11:14	A comparison of sporadic-E occurrence rates using ionosondes and GPS radio occultation measurements	Daniel Emmons Air Force Institute of Technology	Download
11:29	GNSS-RO Ionospheric Electron Density Responses to Geomagnetic Storms Induced by CMEs	Nimalan Swarnalingam NASA/CUA
11:44	Equatorial Ionospheric Irregularities Observed by COSMIC 2 and GOLD Missions	Qian Wu COSMIC/UCP, UCAR
9:49	Session 2: Numerical Weather Prediction (NWP)
9:49	Deep Refraction GNSS-RO Signals from Moist Atmospheric Boundary Layer	Dong Wu NASA Goddard Space Flight Center	Download
10:04	Retrieving Boundary Layer Humidity Using GNSS Radio Occultation and Passive Nadir Microwave Data	Igor Polonsky AER Inc	Download
10:19	Colocation Analysis of Radio Occultation Soundings and Passive Microwave Soundings for Profiling in the Marine Boundary Layer	Lucy Halperin Massachusetts Institute of Technology	Download
10:34	Quantification of Horizontal Inhomogeneity in the Planetary Boundary Layer and its Impact on GNSS Radio Occultation Measurements	Thomas Winning Texas A&M University-Corpus Christi	Download
10:49	Break
10:59	Assessment of COSMIC-2 Radio Occultation (RO) bending angle bias in the lower troposphere	Kuo-Nung Wang Jet Propulsion Laboratory, California Institute of Technology, USA	Download
11:14	Refractivity biases in O-B under precipitation conditions: new insights from polarimetric RO	Estel Cardellach Institute of Space Sciences (ICE-CSIC) and Institute of Space Studies of Catalonia (IEEC)	Download
11:29	Vertical Structure Content of Polarimetric Radio Occultations and and Applications to Weather Modeling	F. Joseph Turk Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA	Download
11:44	Precipitation and ice retrievals from PAZ Polarimetric Radio Occultations	Ramon Padullés Institut de Ciències de l'Espai (ICE-CSIC); Institut d'Estudis Espacials de Catalunya (IEEC)	Download
11:59	Break
12:04	Poster Session See Posters
1:04	Adjourn

Monday, April 12
Time (US EDT)	Session/Title	Presenter	Presentation
8:59	Welcome and Logistics
9:09	Invited Talk - Climate Atmospheric climate change — insights from GNSS RO	Andrea Steiner Wegener Center for Climate and Global Change, University of Graz
9:34	Q&A
9:39	Break
9:49	Two Parallel Sessions Session 1: Receiver Technology and Innovative RO Techniques
9:49	Inter-Comparison of COSMIC-2 Radio Occultation with ATMS Microwave and CrIS Infrared Sounding Measurements using the Community Radiative-Transfer Model	Xi Shao CISESS/ESSIC, University of Maryland, College Park, MD, USA	Download
10:04	Initial GNSS-RO Results from Sentinel-6	Chi Ao JPL	Download
10:19	Overview of EUMETSAT RO Activities, with a focus on Reprocessing and Sentinel-6	Axel von Engeln EUMETSAT	Download
10:34	GRACE-FO Radio Occultation Data Processing – First Results	Torsten Schmidt GFZ German Research Centre for Geosciences, Potsdam, Germany	Download
10:49	Break
10:59	Preliminary Assessment of the Airborne GNSS Radio Occultation Sounding Capability from Airbus Commercial Aircrafts	Feiqin Xie Texas A&M University - Corpus Christi, Corpus Christi, Texas, USA	Download
11:14	Augmenting Long-term Microwave Radiometer Data Quality Assessment Robustness with COSMIC-2 Atmospheric Soundings	Robbie Iacovazzi GST, Inc. supporting NOAA/NESDIS/STAR	Download
11:29	Precise Orbit Determination for Radio Occultation missions at EUMETSAT	Yago Andres EUMETSAT	Download
11:44	Investigating the Capabilities of Loon Long Duration Balloons to Obtain RO Measurements for Meteorological Studies	Julianna Cativo University of California, Los Angeles (UCLA), Los Angeles, CA	Download
9:49	Session 2: Climate
9:49	The ROM SAF RO climate data records: recent applications and plans ahead	Hans Gleisner Danish Meteorological Institute	Download
10:04	Obs4MIPs v3.0: A Multi-Mission GNSS-RO Dataset for Climate Monitoring and Model Assessment	Mayra Oyola-Merced Jet Propulsion Laboratory	Download
10:19	Diurnal Variation of the Planetary Boundary Layer Height Observed from COSMIC Radio Occultation and Radiosonde Soundings over the Southern Great Plains	Kevin Nelson Texas A&M University - Corpus Christi	Download
10:34	Variations of Stratospheric Gravity Waves Derived from Temperature Observations of Multi-GNSS Radio Occultation Missions	Xiaohua Xu School of Geodesy and Geomatics, Wuhan University, China	Download
10:49	Break
10:59	Quantifying the tropical upper tropospheric warming amplification using radio occultation measurements	Panagiotis Vergados JPL/Caltech	Download
11:14	Equatorial waves, diurnal tides and small-scale thermal variability in the tropical lower stratosphere from COSMIC-2	William Randel NCAR and COSMIC	Download
11:29	The Stratospheric Diurnal Cycle in Radio Occultation Data and Implications for Climate Monitoring	Stephen Leroy Atmospheric and Environmental Research	Download
11:44	Signatures of water vapor and precipitation, ENSO and accuracy revealed in 15 years of GNSS RO	E. Robert Kursinski PlanetiQ	Download
11:59	Break
12:04	Four Parallel Breakout Groups Receiver Technology and Innovative RO Techniques Breakout Group Numerical Weather Prediction (NWP) Breakout Group Space Weather Breakout Group Climate Breakout Group
1:04	Adjourn

Tuesday, April 13
Time (US EDT)	Session/Title	Presenter
8:59	Welcome and Logistics
9:09	Outbrief Report: Receiver Technology and Innovative RO Techniques	Breakout Lead, Rob Kursinski Rapporteur, John Braun
9:39	Outbrief Report: Numerical Weather Prediction (NWP)	Breakout Lead, Hui Shao Rapporteur, Neil Bowler
10:09	Break
10:19	Outbrief Report: Space Weather	Breakout Lead, Bill Schreiner Rapporteur, Riccardo Notarpietro
10:49	Outbrief Report: Climate	Breakout Lead, Andrea Steiner Rapporteur, Panagiotis Vergados
11:19	Break
11:39	Final Plenary	IROWG Co-Chair: Sean Healy IROWG Co-Chair: Ulrich Foelsche IROWG Rapporteur: Anthony Mannucci
1:04	Adjourn

Poster Title	Presenter	Poster PDF
A new algorithm of evaluation of Wigner Distribution Function with application to radio occultation analysis	Michael, Gorbunov, A.M. Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences	View
A new archive including radio occultation profiles collocated with the largest SO2 volcanic eruptions in between 2006 and 2016	Riccardo, Biondi, Università degli Studi di Padova, Dipartimento di Geoscienze, Padova, Italy	View
Application of machine learning algorithms to COSMIC-2 QC metrics	Maggie, Sleziak-Sallee, UCAR	View
Automated cloud top detection using machine learning algorithm on radio occultation profiles	Riccardo, Biondi, Università degli Studi di Padova, Dipartimento di Geoscienze, Padova, Italy	View
Comparison among atmospheric profiles from COSMIC missions	Raphael, Silva Nespolo, São Paulo State University	View
Comparison Between FORMOSAT-7/COSMIC2 IVM Ion Density and TGRS Electron Density	Min-Yang, Chou, COSMIC Program Office, UCAR	View
Comparison of Spire RO profiles Processed by UCAR and Spire	Vladimir, Irisov, Spire Global	View
Comparison of vertical electron density profiles over Low latitude American, African and Asian longitudinal sectors from COSMIC measurements	Asebe , Oljira, Wollega University	View
Cycle Slips Mitigation through a State-Based Filtering Method of Unwrapping GNSS-RO Phase Measurements	Yang, Wang, University of Colorado Boulder	View
Detection and Localization of Terrestrial RFI using TriG/Blackjack GNSS Receivers	T. Maximillian, Roberts, Jet Propulsion Laboratory, California Institute of Technology	View
Development of a Regional Ionospheric TEC Map for Indonesia	Asnawi, Husin, Space Science Center LAPAN Indonesia	View
Error Propagation from the Precise Orbit Determination and Clock Uncertainty Estimates to Bending Angle in the STAR’s COSMIC-2 Processing System	Bin, Zhang, CISESS/ESSIC, University of Maryland, College Park	View
Estimation of COSMIC-2 error variance using the three-cornered hat method with only radio occultation data	Jeremiah, Sjoberg, COSMIC Program Office	View
Evaluation of Tropospheric Moisture Characteristics Among COSMIC-2, ERA5, and MERRA-2 in the Tropics and Subtropics	Benjamin, Johnston, UCAR	View
FORMOSAT-7/COSMIC-2 Neutral Atmosphere Radio Occultation Profile Count Statistics and Impacts in 2020.	William, Gullotta, NOAA	View
GeoOptics CICERO Radio Occultation Excess Phase Processing at NOAA/STAR	Yong, Chen, NOAA/NESDIS/STAR	View
GNSS RO, CMIP6, AIRS, ECWMF and GFS Water vapor histograms Comparisons and Implications	E. Robert, Kursinski, PlanetiQ	View
Inter-calibration of Ionospheric Density data from IVM and TGRS	Qian, Wu, COSMIC/UCP UCAR	View
IRNSS scintillation studies near the EIA crest of the Indian longitude Sector	Debasis, Jana, University of Calcutta	View
New machine learning approaches for tropospheric profiling based on COSMIC-2 data over Taiwan	Elżbieta, Lasota, Wrocław University of Environmental and Life Sciences, Institute of Geodesy and Geoinformatics	View
Performance Assessment of Airborne GNSS Reflectometry Experiments for Triton Satellite Mission	Yung-Fu, Tsai, National Space Organization, HsinChu, Taiwan	View
Performance of COSMIC electron density profiles over the Brazilian region by means of ionosonde data: ionPrf versus igaPrf	Gabriel, Jerez, São Paulo State University	View
Quantifying Sources of Data Loss for the FORMOSAT-7/COSMIC-2 Mission	Gavin C., James, University Corporation for Atmospheric Research (UCAR)	View
Retrieving Temporally Dense GNSS-RO Profiles from Long Duration Balloon Platforms	Bryan, Chan, Night Crew Labs	View
Sea Ice Altimetry and Classification using Grazing Angle Reflected GNSS Signals Measured by Spire’s RO Constellation	Vu, Nguyen, Spire Global, Inc.	View
Surfing Tropical Waves in the Lower Stratosphere: Inferences on Waves and Winds from Long-Duration Super-Pressure Balloons and Balloon-borne Radio Occultation Profiles	M. Joan, Alexander, NWRA-Boulder	View
Toward a Simulation - Retrieval System for Demonstrating Tomography of Internal Gravity Waves	Jennifer, Hegarty, Atmospheric and Environmental Research (AER), Lexington, Massachusetts, USA	View
Tropical waves observed by balloon-borne GPS Radio Occultation during the equatorial Strateole-2 super-pressure balloon campaign	Bing, Cao, Scripps Institution of Oceanography/ University of California San Diego	View
Using Machine Learning to Detect Cloud Signatures in COSMIC- Radio Occultations	Stephen, Leroy, Atmospheric and Environmental Research	View
Utilization of GPSRO in the NOAA Products Validation System (NPROVS)	Bomin, Sun, IMSG at NOAA/NESDIS/STAR	View

Cooperative Programs for the Advancement of Earth System Science

8th International Radio Occultation Working Group Meeting - IROWG-8

Two Parallel Sessions

Session 1: Receiver Technology and Innovative RO Techniques

Session 2: Numerical Weather Prediction (NWP)

Four Parallel Breakout Groups

Two Parallel Sessions

Session 1: Receiver Technology and Innovative RO Techniques

Session 2: Numerical Weather Prediction (NWP)

Four Parallel Breakout Groups

Two Parallel Sessions

Session 1: Space Weather

Session 2: Numerical Weather Prediction (NWP)

Poster Session

Two Parallel Sessions

Session 1: Receiver Technology and Innovative RO Techniques

Session 2: Climate

Four Parallel Breakout Groups

IROWG-8 Posters

NCAR

UCAR