About the Tour de l’IGS Stops
The Tour de l’IGS is a series of virtual workshops on relevant topics to the IGS membership, stakeholders and GNSS community in general. These events will be hosted several times a year and will cover a wide range of topics including space-borne and ground-based instrumentation, technology development, scientific and societal applications, etc.
Virtually through WebEx, in an around-the-world clock format. Please stay tuned for the next stop.
Participants will receive the meeting link upon completion of the registration. By participating in this workshop, participants agree to follow the IGS Virtual Workshop Code of Conduct.
Agendas
Tour de l’IGS 7th Stop: Spotlight on Africa
04 June 2025, 1200-1520 UTC
This 7th stop focuses on the African continent.
Virtual Organising Committee: Fernand Balé (Bureau National d’Etudes Techniques et de Développement, Côte d’Ivoire) and Babatunde Rabiu (National Space Research and Development Agency, Nigeria).
Registration: https://forms.gle/A5nyo8g9sjUDog3D9.
| Time (UTC) | Speaker | Institution | Title |
| 1200-1210 | Fernand Balé; Babatunde Rabiu; Allison Craddock | Bureau National d’Etudes Techniques et de Développement, Côte d’Ivoire; National Space Research and Development Agency, Nigeria; NASA Jet Propulsion Laboratory & International GNSS Service Central Bureau, USA | Welcoming Remarks |
| 1210-1230 | Aslam Parker | National Geospatial Information, DLRRD, South Africa | The TrigNet CORS network |
| 1230-1250 | Ahebwa Edinah | Ministry of Lands, Housing, and Urban Development, Surveys and Mapping Department, Uganda | Uganda’s Contribution to the IGS Network |
| 1250-1310 | Olusegun Jonah | SRI International, USA | Need for a Continuous Network of GNSS Receivers in Equatorial and Low-Latitude Africa – the CONGA Network |
| 1310-1330 | Zouheir Fatnassi | Department of Geodesy and Topography, Office of Topography and Cadastre, Tunisia | Data Availability Efforts in Tunisia |
| 1330-1350 | Andre Nonguierma | United Nations Economic Commission for Africa | Unification of Africa’s Coordinate Systems: The AFREF Programme as a Necessity for Its Development |
| 1350-1410 | Abuduganiyu Adeyemi Adebomehin | Office of the Surveyor General of the Federation, Nigeria | Nigerian Reference Frame: Update and GNSS data services |
| 1410-1430 | Lazarus M. Ojigi | African Regional Institute for Geospatial Information Science and Technology, Nigeria | Bridging the Gaps in GNSS Capacity Development and Data Sharing for the Realisation of African Geodetic Reference Frame |
| 1430-1450 | Camille Martire | NASA Jet Propulsion Laboratory & International GNSS Service Central Bureau, USA | Introducing the IGS: the IGS Data, Products, and Benefits, and How to Participate in the IGS |
| 1450-1520 | Open Discussion and Final Remarks | ||
Tour de l’IGS 6th Stop: Galileo Constellation Spotlight
23 May 2023
This 6th stop focuses on the Galileo constellation.
Organized with support from Navigation Support Office of ESA’s European Space Operations Centre.
| Time (UTC) | Speaker | Institution | Title |
| 1000-1010 | Werner Enderle, Camille Martire | ESA, NASA JPL | Welcome Remarks,
Housekeeping Notes |
| 1010-1030 | David Ibanez | ESA | Galileo System
|
| 1030-1045 | Ignacio Fernandez / Juan Pablo Boyero | European Commission (EC) | Galileo Services
|
| 1045-1100 | Giovanni Lucchi | EUSPA | Galileo Applications
|
| 1100-1110 | Questions | ||
| 1110-1120 | 10-MIN BREAK | ||
| 1120-1130 | Francisco Gonzalez | ESA | Metadata |
| 1130-1140 | Erik Schoenemann | ESA | Galileo Geodetic Reference Frame
|
| 1140-1150 | Francesco Gini | ESA | Galileo Precise Orbit and Clock Determination, POD concept at ESOC |
| 1150-1230 | Open Discussion and Final Remarks | ||
Tour de l’IGS 5th Stop: GNSS for Natural Hazards in the South Pacific
14 February 2023
This 5th stop focuses on how geodetic and GNSS infrastructures can support early warning systems for natural hazards, in particular for Pacific communities. To view the abstract for each presentation, visit Tour de l’IGS 5th Stop Agenda Abstracts or click the “View Abstracts” button below.
Organized with support from the Group on Earth Observations Geodesy4Sendai Pilot Initiative.
| Time (UTC) | Speaker | Institution | Title |
| 2130-2140 | Camille Martire | NASA JPL | Introductory Remarks, Housekeeping Notes |
| 2140-2200 | John LaBrecque | GGOS Geohazards Focus Area | GNSS Tsunami Early Warning for the South Pacific |
| 2200-2220 | Shunichi Koshimura | International Research Institute of Disaster Science, Tōhoku University | A nation-wide tsunami inundation and damage forecast system in Japan |
| 2220-2240 | Viliami Folau | Ministry of Lands & Natural Resources, Tonga | GNSS Infrastructure and Technologies to Support Tsunami Early Warning System |
| 2240-2250 | Break | ||
| 2250-2310 | Simon McClusky (1), Adrienne Moseley (1), Phil Cummins (1), Shin-Chan Han (2), John Dawson (1) |
(1) Geoscience Australia, (2) University of Newcastle |
Australian perspectives on the use of GNSS for Tsunami Warning |
| 2310-2330 | Andrick Lal | SPC (Pacific Community) | Pacific Sea Level and Geodetic Stations for Natural Hazards |
| 2330-2350 | Elisabetta d’Anastasio (1), the GeoNet team, B. Fry, John LaBrecque (2) | (1) GNS Science, (2) GGOS Geohazards Focus Area |
GNSS for Natural Hazards in Aotearoa New Zealand |
| 2350-0000 | Camille Martire | NASA JPL | Concluding Remarks, Further Discussion |
Tour de l’IGS 4th Stop: BDS Constellation Spotlight
27 September 2022
The 4th stop focuses on the latest progress of the BDS constellation. BDS is actively promoting international cooperation in an all-around way. In the 4th Tour de l’IGS, GNSS users could know the special services provided by BDS, including high-precision PPP-B2b service and Short Message Communication. This 4th stop will provide information on BDS featured services, BDS data usage, and the performance of BDS data processing.
IGS Scientific Organizing Committee for this event: Prof. Jianghui Geng and Prof. Qile Zhao, Wuhan University
12:00 – 12:05:
Introduction and Instructions to Participants | Prof. Jianghui Geng (Wuhan University, IGS Data Center Representative, IGS PPP-AR Working Group Chair) and Dr. Camille Martire (on behalf of the IGS Central Bureau)
12:05 – 12:10:
Welcome Remarks | Prof. Qile Zhao (Wuhan University, IGS Governing Board)
12:10 – 12:25:
BDS PPP-B2b Service | Dr. Jun Lu (China Satellite Navigation Project Center (CSNPC), Deputy Chief)
12:25 – 12:30:
Questions, Transition to Next Speaker
12:30 – 12:45:
BDS Network Analysis in GAMIT | Prof. Tom Herring (MIT, IGS Analysis Center Coordinator)
12:45 – 12:50:
Questions, Transition to Next Speaker
12:50 – 13:05:
Official BDS Satellite Antenna Phase Centers | Dr. Jing Guo (Wuhan University)
13:05 – 13:10:
Questions
13:10 – 13:20:
10 minute break
13:20 – 13:35:
BDS Orbits and Clocks | Dr. Peter Steigenberger (German Aerospace Center, IGS Multi-GNSS Working Group Member/IGS Associate Member)
13:35 – 13:40:
Questions, Transition to Next Speaker
13:40 – 13:55:
BDS Coordinate Reference Frame | Dr. Shanshi Zhou (Shanghai Astronomical Observatory) on behalf of Dr. Xiaogong Hu (Shanghai Astronomical Observatory)
13:55 – 14:00:
Questions, Transition to Next Speaker
14:00 – 14:15:
BDS Short Message Communication | Prof. Xiangwei Zhu (Sun Yat-Sen University)
14:15 – 14:20:
Questions
14:20 – 14:30:
Open Discussion and Final Remarks
Tour de l’IGS 3rd Stop: GNSS processing based on IGS products
17 February 2022
The third stop will provide GNSS users (even without a geodetic background) an overview on the value by applying IGS products for their activities. It focuses on GNSS processing based on IGS products focusing on geometric applications, e.g., coordinate estimation. You will be provided with information on
- how to process and get ITRF coordinates for regional or local applications
- which aspects of GNSS data analysis are relevant in this context
- value of geodesy to other scientific/user applications
IGS Scientific Organizing Committee for this event: Rolf Dach and Arturo Villiger, AIUB
17:00 – 17:10:
Introduction and instructions to participants | Allison Craddock, on behalf of the Central Bureau
17:10 – 17:25:
Observation equation and analysis strategies | Rolf Dach (AIUB, IGS Analysis Center Representative)
17:25 – 17:30:
Questions for Rolf, Transition to Next Speaker
17:30 – 17:45:
Overview on available IGS products | Tom Herring (MIT, IGS Analysis Center Coordinator)
17:45 – 17:50:
Questions for Tom, Transition to Next Speaker
17:50 – 18:05:
Processing a regional/continental dataset | Sonia Costa (SIRGAS)
18:05 – 18:10:
Questions for Sonia, Transition to Next Speaker
18:10 – 18:25:
Antenna calibrations | Arturo Villiger (AIUB, IGS Antenna Working Group Chair)
18:25 – 18:30:
Questions for Arturo
18:30 – 18:40:
10 minute break
18:40 – 18:55:
Clock Models and Interpolation for PPP | Michael Coleman (US NRL, IGS Clock Products Coordinator) | Urs Hugentobler (Technical University of Munich)
18:55 – 19:00:
Questions for Michael and Urs, Transition to Next Speaker
19:00 – 19:15:
Bias handling and ambiguity resolution | Stefan Schaer (swisstopo, Bias & Calibration Working Group Chair)
19:15 – 19:20:
Questions for Stefan, Transition to Next Speaker
19:20 – 19:35:
Troposphere Modelling | Johannes Böhm (Technische Universität Wien, IGS Associate Member)
19:35 – 19:40:
Questions for Johannes
19:40 – 20:00:
Open Discussion and Final Remarks
Tour de l’IGS 2nd Stop: Infrastructure
01 September 2021
The Second Tour de l’IGS is focused on IGS Infrastructure. This includes topics related to network stations and their configurations (instrumentation, monumentation, communications, etc), data flow, and other considerations involved in the collection and distribution of GNSS observational data and information.
20:00 – 20:05:
Introduction and instructions to participants | Allison Craddock, on behalf of the Central Bureau
20:05 – 20:10:
Community Welcome | Zuheir Altamimi (IAG) on behalf of the Governing Board
20:10 – 20:25:
IGS network, current and future work | Markus Bradke (GFZ-Potsdam, Chair, IGS Infrastructure Committee)
20:25– 20:30:
Questions for Markus, Transition to Next Speaker
20:30 – 20:45:
RINEX 4.0 | Ignacio “Nacho” Romero (ESA/ESOC, IGS RINEX Working Group Chair)
20:45 – 20:50:
Questions for Nacho, Transition to Next Speaker
20:50 – 21:05:
GeodesyML | Nick Brown (Geoscience Australia)
21:05 – 21:10:
Questions for Nick, Transition to Next Speaker
21:10 – 21:25:
Highlights from CDDIS | Pat Michael (NASA GSFC, IGS Data Center Coordinator)
21:25 – 21:30:
Questions for Pat, Transition to Next Speaker
21:30 – 21:45:
How to become an IGS Station?/Updates to the Site-Log Manager | David Maggert (UNAVCO, IGS Network Coordinator) | Robert Khachikyan (Raytheon Technologies, IGS Central Bureau System Engineer) | Benjamin Juarez (NASA JPL California Institute of Technology, IGS Central Bureau Information Systems Intern)
21:45 – 21:55:
Questions for David, Robert, and Ben
21:55 – 22:15:
Open discussion and final remarks
Tour de l’IGS 1st Stop: repro3
02 June 2021
The first is a session fully dedicated to the #ITRF2020 and the outcomes of the activities of Repro3. To learn more about Repro3, visit the Repro3 announcement page.
4:00 – 4:05:
Introduction and instructions to participants | Mayra Oyola, on behalf of the Central Bureau
4:05 – 4:20:
Community Welcome, why is repro-3 important for the IGS? | Felix Perosanz (CNES, Chair, IGS GB)
4:20 – 4:25:
Questions for Felix, Transition to Next Speaker
4:25 – 4:40:
Terrestrial frame solutions from the third IGS reprocessing: the IGS contribution to ITRF2020 | Paul Rebischung (IGS Reference Frame Coordinator, IGN)
4:40 – 4:45:
Questions for Paul, Transition to Next Speaker
4:45 – 5:00:
Highlights of IGS Contribution to ITRF2020 | Zuheir Altamimi (IAG)
5:00 – 5:05:
Questions for Zuheir, Transition to Next Speaker
5:05 – 5:20:
Multi-GNSS orbit solutions from the third IGS reprocessing | Salim Masoumi (IGS Analysis Center Co-Coordinator, Geoscience Australia)
5:20 – 5:25:
Questions for Salim, Transition to Next Speaker
5:25 – 5:40:
Repro3 PPP-AR products | Simon Banville (PPP Working Group Chair, NRCan)
5:40 – 5:45:
Questions for Simon, Transition to Next Speaker
5:45 – 6:00:
Multi-GNSS clock combinations on the repro3 using their combination software | Jianghui Geng (Wuhan University)
6:00 – 6:05:
Questions for Jianghui, Transition to Next Speaker
6:05 – 6:20:
Rigorous propagation of the Galileo-based terrestrial scale | Susanne Glaser (GFZ-Potsdam)
6:20 – 6:25:
Questions for Susanne
6:25 – 6:45:
Open discussion and final remarks
Meet Our Speakers
Contributing Organizations to this event
We want to celebrate all of our contributing organizations! Please visit our Contributing Organizations page to view additional Contributing Organizations and add your organization.
