IGS Workshop 2018
2018-10-29 - 2018-11-02 | East Lake (Donghu) International Conference Center, Wuchang District, Wuhan, 430000, China
IGS Workshop 2018
Dates and Location
29 October to 2 November, 2018 in Wuhan, China

Venue
The Local Organizing Committee (LOC) has announced that the Workshop will take place at:
East Lake (Donghu) International Conference Center
Wuchang District
Wuhan 430000
China Plenaries

PY01 – Analysis Centers and Reference Frames – Thomas Herring, Paul Rebischung, Michael Moore

Overview of workshop, performance of IGS products, upcoming reprocessing effort, potential models

M. Moore

New ambiguity-fixed IGS clock analysis products at CODE

S. Shaer

Galileo un-differenced “integer” products

F. Perosanz

Aperiodic surface mass transport observed in GRACE and GNSS time series

P. Rebischung

Investigation of draconitic errors in IGS second reprocessed products at WHU

C. Shi

Impact of data break on the uncertainty of GNSS site velocity estimate

L. Wang

PY02 – Orbit Modeling – Rolf Dach, Tim Springer

Orbit determination and solar radiation pressure analysis of BDS satellite

Q. Chen

Optimized Strategies for Precise Orbit Determination of Low Earth Orbiters Based on BDS

Q. Zhang

Initial Orbit Determination of Third-Generation BeiDou MEO Spacecraft

F. Dilssner

Precise orbit determination of QZSS satellites with high-fidelity non-gravitational disturbance model

S. Ikari

Validation of boxwing models for GNSS satellites

S. McNair

Improved Precise Orbit Determination by modelling of highly accurate clocks

I. Selmke

PY03 – Troposphere – Rosa Pacione, Sharyl Byram

Multi-GNSS Activities for Atmosphere Sounding at GFZ

G. Dick

Impact of second-order ionospheric delays on troposphere ZWD estimation with GPS and BeiDou measurements

S. Zhang

GCOS Reference Upper Air Network (GRUAN) GNSS Precipitable Water Product

J. Wang

On the estimation and use of GNSS tropospheric gradients for meteorological applications

M. Kačmařík

Tropospheric path delays derived from very high-resolution GNSS-based troposphere models and spaceborne SAR interferometry

K. Wilgan

GPS Water Vapor Data to Improve Water Vapor Retrieval from MERSI/FY-3B Remote Sensing Satellite

Z. Liu

PY04 – Infrastructure Committee, RINEX, Data Centers – Nacho Romero, Ken Macleod, Carey Noll

IGS Infrastructure Status and Challenges

I. Romero

Challenges and Opportunities of GNSS Reference Station Network

. Jiang

GNSS Science Service Centre (GSSC)

L. Garcia

Improving the efficiency of GNSS data streaming within the IGS

R. Ruddick

Updates to the CSRS-PPP online service

S. Banville

PY05 – Timing and Biases – Stefan Schaer, Michael Coleman

Phase Biases of GPS L1/L2/L5 for the Purpose of Zero-difference Ambiguity Resolution and Initial Results on Galileo E1/E5a

B. Duan

Phase bias product in the bias-SINEX format and open-source software for undifferenced ambiguity resolution at Wuhan University

J. Geng

Estimating a set of IFCBs to make IGS ionospheric-free clock product compatible with various triple-frequency PPP models

L. Pan

What to do about Flex Power

Y. Bar-Sever

Quantifying the pilot-data bias on all current GNSS signals and satellites

J. Sleewaegen

PY06 – MGEX and IGMA – Oliver Montenbruck, Urs Hugentobler

Introduction by session chairs

O. Montenbruck

Toward a Multi-Constellation combination : Improving the IGS orbits & clocks combination software for MGEX products

P. Sakic

Towards instantaneous PPP initialization in case of triple-frequency multi-GNSS data

J. Guo

Multi-frequency and multi-GNSS processing with the raw observation approach

S. Strasser

Signal-in-space Accuracy Analysis for BDS in 2016-2017

B. Wang

Progress on the ICG IGMA Task Force activities and joint Trial Project with IGS

S. Song

PY07 – Antennas – Arturo Villiger, Florian Dilssner

Introduction by session chairs

A. Villiger

Field Absolute Calibration of the BDS Receiver Antenna at Wuhan

Z. Hu

Multi-GNSS Absolute Antenna Field Calibration with a Robot at ETH Zurich

D. Willi

Estimation of antenna phase center offset for BDS IGSO and MEO satellites

X. Yan

Consistency antenna products in the MGEX environment

A. Villiger

PY08 – Ionosphere – Andrzej Krankowski

High-precision and high-resolution VTEC maps based on B-spline expansions and GNSS data

M. Schmidt

CAS Ionosphere Associate Analysis Center: Status report

Z. Li

Impact of strong space weather conditions on GNSS-based navigation

G. Olivares

Ionospheric research and service based on near real time GNSS data

J. Berdermann

Climate VTEC maps in cooperation of IGS’ GNSS and GIRO sensor networks as a step towards VTEC assimilation into IRI

A. Froń

Regional Ionospheric Irregularities Mapping at Different Temporal Scales Using GNSS Networks and Its Applications

S. Song

PY09 – Real-Time – Axel Ruelke, Qile Zhao

Recent Developments of DLR’s Real-Time Clock Estimation (RETICLE) Engine

A. Hauschild

Precise point positioning of surveying vessel in the Baltic Sea

W. Söhne

Benefits of IGS RTS for real time ionospheric space weather monitoring

N. Wang

The impact of higher order ionospheric corrections on ultra-rapid orbit determination

X. Chen

FUSING: a distributed software platform for real-time high precision multi-GNSS service

S. Gu

Real-time orbit and clock products at Wuhan University to support Multi-GNSS application

J. Guo

PY10 – Science Applications – Jianghui Geng, Fred Blume

Crustal deformation in the Kunlun Fault region from long-term GPS measurements

G. Zheng

Real-time coseismic fault model estimation based on RTK-GNSS analysis in Japan

S. Kawamoto

The Effect of Colored Noise on Automatic Offset Detection in GNSS Time Series

R. Fernandes

GNSS-Reflectometry for Earth Observation: History, Results and Prospects

J. Wickert

Observing geocenter motion from LEO POD using onboard GPS tracking data

D. Kuang

Retrieving and Validating Precipitable Water Vapor from Shipborne GNSS Observation using Ground-based and Space-borne Data

M. Ge

Posters

PS01 – Analysis Centers

New developments at GOP Analysis Center

J. Dousa

Between-satellite single-difference integer ambiguity resolution in the SPODS software

R. Ruan

CNES/CLS IGS Analysis center: recent activities

S. Loyer

Precise satellite clock estimation for GPS, GLONASS, BeiDou and Galileo using the Australian Analysis Centre Software

T. Li

The ESA/ESOC Analysis Centre progress and improvements

T. Springer

Activities at the CODE Analysis Center

R. Dach

PS02 – Reference Frame

Status of IGS14 reprocessing at the JPL IGS Analysis Center

P. Ries

Least Squares Cubic Splines for the Polar Motion Estimations

P. Li

Converted Total Least Squares method and Gauss-Helmert model with applications to 3-D coordinate transformations of ITRF series

J. Cai

PS03 – Orbit Modeling

Impact of solar radiation pressure mis-modelling on GNSS satellite orbit determination

T. Tseng

Impact of empirical parameters on GNSS orbit prediction through numerical integration

T. Papanikolaou

The Adjusted Optical Properties of GNSS Satellites and Applications in Precise Orbit Determination and Prediction

B. Duan

Improving precise orbit and clock determination for BeiDou-3, Galileo and QZSS with satellite metadata

Y. Yuan

Precise orbit and clock determination using zero-differenced ambiguity resolution for GPS, Galileo, BDS and GLONASS

J. Wu

The impact of atmospheric and hydrological surface loading corrections on GNSS orbits

B. Männel

A multi-year reanalysis of GPS Block II/IIA and IIF satellite yaw maneuvers by means of reverse kinematic point positioning tech

A. Sibois

Solar Radiation Pressure Model Performance Test Using GNSS Precise Ephemeris

S. Yoon

Accuracy analysis of the observed GNSS ultra-rapid orbit and its correction

C. Hu

Improved orbit modelling of Galileo satellites during eclipse seasons

D. Sidorov

Orbit/Clock decorrelation approach for precise dynamic orbit determination

J. Chen

Orbit improvement based on combined processing of GPS and LEO

W. Huang

Continuous Precise Ephemerides for Beidou GEO/IGSO Maneuvered Satellites

J. Qiao

PS04 – Troposphere

Atmospheric sounding with ground-based, satellite-based and balloon-based GNSS for climate and meteorology study

X. Wang

Comparison of zenith troposphere delay from different techniques

V. Suvorkin

Integrating high-, medium- and low-earth orbit navigation satellite constellations to retrieve atmospheric water vapor

H. Tan

Assimilation of GNSS zenith total delay in the weather research and forecasting model: a case study

Y. Zheng

Impact of high-order ionospheric effects on estimated tropospheric parameters with GPS data

Z. Zheng

Analysis and comparison of tropospheric scintillation prediction models at Ogun University

P. Enuka

Trends in the atmospheric water vapour estimated using different elevation-angle-dependent parameters in the GPS

T. Ning

GNSS-based precise troposphere zenith path delay determination with high temporal resolution

Z. Kang

GNSS+ Tropospheric Sounding for Weather and Climate – An Australian Perspective

K. Zhang

PS05 – Infrastructure Committee, RINEX, Data Centers

New way of GNSS data dissemination within the European Plate Observing System

J. Dousa

REGINA a CNES/IGN worldwide GNSS receivers network for IGS and navigation

L. Jolivet

Discovering the Geoscience Australia GNSS Data Repository

R. Ruddick

GFZ GNSS Infrastructure and the Global reference Station Network

M. Ramatschi

NASA CDDIS: Important Changes to User Access

C. Noll

EGON: The ESA/ESOC GNSS Observation station Network

I. Romero

Status Quo of the new GFZ Operational Data Center

M. Bradke

Foundation CORS – The backbone of the U.S. National Spatial Reference System

K. Choi

SIRGAS: 25 years providing the geodetic infrastructure in Latin America

L. Sanchez

PS06 – Biases

FY-3D and FY-3C Onboard Observations for DCB Estimation: BDS and GPS DCBs

T. Ma

Fast estimation of real-time high-frequency precise satellite clock offset using multi-frequency and multi-constellation GNSS ob

Y. Xiong

Differential code bias estimation with ionosphere constrained by DESIGN

Y. Wang

GLONASS phase bias products in the bias-SINEX format at Wuhan University: Differential code-phase bias

Y. Pan

Long-term characteristics analysis and modeling of GPS/BDS inter-frequency clock bias

X. Gong

Multi-GNSS code bias handling: an observation-specific perspective

N. Wang

Precise Common View Time and Frequency Transfer based on BDS GEO satellites

X. Yang

PS07 – Timing

Galileo In-Orbit Satellite Clocks Performance and System Time Offset Assessment

L. Zhu

Analysis on Prediction Characteristics of time offsets in GNSS

C. Mengfei

Timing performance evaluation of BDS-3 early constellation using receivers located in time laboratories

B. Sun

Performance evaluation of GLONASS on-board atomic clock in long-term

W. Xie

PS08 – MGEX

Improving Galileo orbit determination using zero-difference ambiguity fixing in a Multi-GNSS processing

G. Katsigianni

Multi-GNSS triple-frequency Differential Code Bias (DCB) determination with Precise Point Positioning (PPP)

T. Liu

Hourly orbit and clock solutions for GPS, GLONASS, BeiDou, and Galileo with analysis of added value

A. Sibthorpe

Integrated precise orbit determination of FY-3C, FY-3D, BDS and GPS

K. Zhang

LEO constellation augmented multi-GNSS precise positioning: heterogeneous constellation design and frequency selection

F. Ma

Frequency Stability Analysis of BDS Satellite Clocks Under the Condition of Multi-satellite Orbit Determination

Y. Wang

Status of the TUM MGEX orbit and clock products

I. Selmke

Galileo real-time satellite clocks generation based on connection of short-arc observation files

M. Wu

The Analysis of BDS2/BDS3 Combined Precise Orbit Determination Strategy

Y. Wang

QZSS signal in space range error, differential inter-system bias and inter-frequency clock bias analysis

Y. Zhang

An Assessment of the Accuracy of Broadcast Ephemerides for Multi-GNSS Positioning

B. Stressler

The improvement of multi-GNSS orbit and clock at GFZ

Z. Deng

PPP rapid ambiguity resolution with LEO constellation augmented GNSS

X. Li

An empirical SRP model for the orbit normal attitude mode

L. Prange

PS09 – IGMA

A Preliminary Assessment on Continuity and Availability of Signal-In-Space for Multi-GNSS: From 2015 to 2016

Q. Zhang

Galileo SISRE analysis with Where

M. Dähnn

GMV’s Preliminary Results of its contribution to IGMA-IGS Joint Trial Project

I. Rodriguez

São Paulo State University contribution to the IGMA Trial Project – PDOP and broadcast ephemeris accuracy assessment

J. Galera Monico

PS10 – Antennas

Group Delay Variations of Galileo Satellite Antennas

S. Beer

estimating-satellite-antenna-calibration-in-a-multi-gnss-environment

R. Dach

6-axis robot for absolute antenna calibration at the US National Geodetic Survey

A. Bilich

PS11 – Ionosphere

POLarGIMs: Time evolution of vertical electron content distribution in polar ionosphere from UPC-GIM TOMION runs

M. Hernández-Pajares

Modeling real-time global ionospheric TEC map based on the spare and uneven distributed multi-GNSS stations

Z. Li

RROT: a new ionosphere activity index for ionospheric irregularity monitoring

N. Wang

Ionospheric observable: benefit from PPP and PPP-AR

W. Nie

A long-term ionospheric dynamics and fluctuations study in a local frame

K. Kotulak

The IGS ROTI Map product: scientific applications and development

L. Cherniak

Ionospheric scintillation monitoring with Bałdy LOFAR station

L. Blaszkiewicz

The effect of solar storm to ionosphere and user’s position of BDS

J. Yi

Survey of solar flare signatures in the upper ionosphere with GNSS and GOES observations: a case study

S. Blevins

Regional Mean Electron Content: A new conception to track regional ionosphere activity

C. Liu

A hybrid of Abel inversion and Vary-Chap model to reconstruct RO electron density profile

H. Lyu

GNSS NavAer network for supporting Ionospheric Studies in Brazil

J. Galera Monico

Development and improvement of BDS single frequency ionospheric model

L. Xu

Application of GNSS-based Ionosphere TEC Model in CE-4

W. Zhou

Influence of Solar Activities on GNSS Broadcast Ionospheric Models in the Asia-Pacific region

N. Cheng

Studying Ionosphere Responses to a Geomagnetic Storm in June 2015 with Multi-Constellation Observations

Y. Liu

Ionosphere continuous monitoring based on BDS GEO satellites measurements

K. Zhao

PS12 – Real-Time

Performance Assessment of BDS Real-Time Precise Point Positioning Based on SSR Corrections

Y. Shi

real-time-gnss-data-quality-control

P. Vaclavovic

Assessing the ambiguity time convergence as function of constraints in the station coordinates and vice versa

J. Galera Monico

Research progress of multi-GNSS PPP-RTK technology

J. Huang

LEO constellation augmented GPS RTK positioning for medium-to-long baselines

H. Lv

Real-time un-differenced precise positioning for Android smartphones

L. Wang

Prediction of IGS RTS Correction Data using Machine Learning Algorithms

M. Kim

Progress and improvements in real-time services at NASA GSFC CDDIS

S. Blevins

real-time-implementation-of-instantaneous-ppp-convergence-using-the-e6-gali

D. Laurichesse

A real-time integrated GNSS/Accelerometer network and processing engine for earthquake early warning in Yunan, China

X. Shaoming

Technology of BDS Real-time Precise Orbit Determination Enhanced by LEOs

W. Le

A new method of integrating GPS and strong-motion data for real-time seismology

R. Fang

Development of real time multi-GNSS precise positioning system at IGG

Y. Yuan

Initial accuracy analysis of real-time products of multi-GNSS from Shanghai Astronomical Observatory AC of iGMAS

Q. Chen

Looking for optimal ways to combine global ionospheric maps in real-time

M. Hernández-Pajares

PS13 – Science Applications

GCS (General Commission for Survey, Riyadh, KSA) Data & Analysis Centre – the results of processing the data from GNSS CORS netw

L. Golubinka

GNSS geodetic networks development in Mongolia and Its Application in Geodynamic Study

E. Danzansan

Research on Extracting Common Mode Error in GPS Network using Principal Component Analysis

J. Wang

On the spatial correlation of colored noise in GPS position time series

A. Santamaria-Gomez

Robust fractal analysis and automatic singular points detection of IGS station coordinates time series

Q. Zhang

Undifferenced ambiguity resolution for GPS-based precise orbit determination of low Earth orbiters using the new CODE clock and

D. Arnold

A gravitational redshift test using eccentric Galileo satellites

P. Delva

Vertical Displacements Driven by Groundwater Storage Changes in the North China Plain Detected by GPS Observations

R. Liu

The Research on Common Mode Errors in GNSS Time Series Using Geographically Weighted Principal Component Analysis

R. Zou

GNSS Fog stations supporting Internet of Things applications: concepts, framework and use case studies

Y. Feng

Homogenized Ground-based GPS precipitable water products from 1999 to 2015 over China and evaluations of radiosondes and reanaly

W. Zhang

Onshore GNSS Used for Monitoring Tidal Variations

Q. Liu

Recommendations

AC and Reference Frame

Space Vehicle Orbit Dynamics Working Group

Troposphere Working Group

Infrastructure Committee, RINEX, Data Centers

MGEX Working Group

IGMA Working Group

Antenna Working Group

TIGA Working Group Recommendations

IONO Working Group Recommendations

Videos
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IGS Website and FTP-HTTPS Transition
2020-03-23 - 2020-12-09 | Online Event
For more information, visit Major Changes in IGS Related Information Systems.

56th IGS Governing Board Meeting ​
2020-08-25 | Virtual
The 56th IGS Governing Board Meeting.
Location: Virtual | Date: 2020-08-25

IGS Session - Posters
2020-12-09 | Virtual
About this Session
The International GNSS Service (IGS) provides the scientific community with a broad range of high-precision products supporting a wide diversity of scientific applications. Currently three fully-deployed GNSS are analyzed by IGS Analysis Centers and included in the currently running reprocessing effort: GPS (USA), GLONASS (Russia), and Galileo (Europe). Developments including additional GNSS (Chinese BeiDou, Japanese QZSS, Indian NavIC, etc.) are ongoing within the IGS.
Several components of the IGS do already support a fully consistent processing of GPS, GLONASS, and Galileo in the operational chain as well as for the currently running reprocessing effort. The continuous improvement of IGS products in this fast-moving field with constantly evolving satellites, systems, signals, models, and data analysis methodology is a scientific challenge.
This session solicits presentations on scientific applications enabled by IGS products and new science enabled by improvements to quality and breadth of GNSS products. VIEW SESSION

GGOS Session - Posters
2020-12-10 | Virtual
About this Session
The Global Geodetic Observing System (GGOS) provides measurements of the time varying gravity, rotation, and shape of the Earth using geodetic and gravimetric instruments located on the ground and in space. These measurements need to be accurate to better than a part per billion in order to advance our understanding of the underlying processes that are causing the Earth’s rotation, gravity, and shape to change. Mass transport in the global water cycle, sea level and climate change, and crustal deformation associated with geohazards are examples of particularly demanding applications of geodetic and gravimetric measurements. All these measurements require a common reference with the same precision, like the Terrestrial Reference Frame and the Unified Height System.
This session provides a platform for discussing diverse scientific targets of GGOS with large dynamic ranges in space and time and geodetic infrastructure to enable stable production of accurate data. VIEW SESSION

ITRF Session - Posters
2020-12-10 | Virtual
About this Session
The quantification of many geophysical phenomena, e.g. sea level variation, co-and post-seismic deformation, glacial isostatic adjustment, loading effects, but also precise orbit determination of artificial satellites, rely on the availability of a global terrestrial reference frame, such as the ITRF. The session solicits contributions from scientists determining or using global reference frames for their applications, focusing on error budgets and other limiting factors. Contributions from analysts of space geodetic techniques (VLBI, SLR, GNSS, DORIS) and their combination in preparation for the ITRF2020, taking into account improved model updates are welcome. Papers on the exploitation of ITRF2014 are also encouraged. VIEW SESSION

GGOS Session - Orals
2020-12-16 13:30 - 14:30 UTC | Virtual

IGS Governing Board Meeting Session 57a
2020-12-16 20:00 | Virtual
IGS Governing Board Meeting Session 57a
Location: Virtual | Date: 16 December 2020 | Time: 8:00 PM to 10:15 PM UTC

ITRF Session - Orals
2020-12-17 13:30 - 14:30 | Virtual

IGS Session - Orals
2020-12-17 15:00 - 16:00 | Virtual
About this Session
The International GNSS Service (IGS) provides the scientific community with a broad range of high-precision products supporting a wide diversity of scientific applications. Currently three fully-deployed GNSS are analyzed by IGS Analysis Centers and included in the currently running reprocessing effort: GPS (USA), GLONASS (Russia), and Galileo (Europe). Developments including additional GNSS (Chinese BeiDou, Japanese QZSS, Indian NavIC, etc.) are ongoing within the IGS.
Several components of the IGS do already support a fully consistent processing of GPS, GLONASS, and Galileo in the operational chain as well as for the currently running reprocessing effort. The continuous improvement of IGS products in this fast-moving field â with constantly evolving satellites, systems, signals, models, and data analysis methodology â is a scientific challenge.
This session solicits presentations on scientific applications enabled by IGS products and new science enabled by improvements to quality and breadth of GNSS products. VIEW SESSION

IGS Governing Board Meeting Session 57b
2021-01-20 20:00 - 23:15 | Virtual
Event: IGS Governing Board Meeting Session 57b
Date/Time: 20 January 2021, 20:00-23:15 UTC
Location: Virtual

This is a closed meeting for the IGS Governing Board.

United Nations Global Geodesy Forum
2021-04-22 10:30 - 12:00 | Online Event
Global Geodesy Forum
Every day, humanity benefits from geodesy. Geodesy is the science of measuring the size, shape and orientation of our planet and it is a foundation for evidence-based policies, decisions and program delivery. Geodesy is used every day, in the fields of civil engineering, industrial automation, agriculture, construction, mining, financial transactions, intelligent transport systems, disaster response and emergency management, environmental studies and scientific research. Furthermore, geodesy enables accurate collection, management and alignment of nationally integrated geospatial information – a key requirement for societal, environmental and economic activities, the measuring and monitoring of progress of the 2030 Agenda for Sustainable Development, the Sendai Framework for Disaster Risk Reduction, the Small Island Developing States Accelerated Modalities of Action (SAMOA) Pathway, and other global, regional and national development agenda and initiatives.
The United Nations Global Geodesy Forum appropriately convened on Earth Day – 22 April 2021 with the title “The Power of Where: The Value of Geodesy to Society”. The virtual open forum organized by the Subcommittee on Geodesy will focus on the significance of geodesy for the wellbeing and betterment of society, environment and economy. The forum will highlight to policy- and decision makers, chief executives, director-generals and senior executives from Member States and relevant stakeholders the benefits enabled by an accurate and reliable Global Geodetic Reference Frame, and the crucial role of geodesy in providing safer and more resilient communities, in particular, to measure the cause and effect of sea level rise, storm surges, earthquakes and tsunamis, and assisting developing countries with effective land and environmental management and efficient digital economies.
The United Nations Secretary-General’s Special Envoy for the Ocean, His Excellency Ambassador Peter Thomson, who is also the Global Geodesy Ambassador, will provide the opening address.

Visit the Global Geodesy Forum event page to learn more.

Tour de l'IGS 1st Stop: Repro3
2021-06-02 11:00 - 14:00 | Virtual
For presentations and videos from this event, visit the Tour de l’IGS Presentations.
What is “Tour de IGS”?
With the IGS workshop being postponed to 2022, we are looking forward to connect with the community in the form of a series of virtual talks or “mini-workshops” throughout this year. The first is a session fully dedicated to the #ITRF2020 and the outcomes of the activities of repro3.
Date: June 02, 2021 11:00 UTC (4 AM PDT) – 14:00 UTC (7 AM PDT)
Registration is required to ensure accountability and accessibility to online resources. Registration is limited to 300 participants. See registration form below.
Moderator: Mayra I. Oyola-Merced, IGS Central Bureau

Speakers:

Felix Perosanz (CNES, Chair, IGS Governing Board)
Zuheir Altamimi (President, International Association of Geodesy)
Paul Rebischung (IGS Reference Frame Coordinator, IGN)
Salim Masoumi (IGS Analysis Center Co-Coordinator, Geoscience Australia)
Simon Banville (IGS PPP-AR Working Group Chair, NRCan)
Susanne Glaser (GFZ Potsdam)
Jianghui Geng (Wuhan University)

Registration is now closed and the event has reached full capacity.
Please contact the IGS Central Bureau if you have questions or concerns.

IAG Scientific Assembly
2021-06-28 - 2021-07-02 | Beijing, China and Online
The IAG Scientific Assembly will be held in Beijing on June 28–July 2, 2021. The Scientific Assembly is a quadrennial event, in the middle of the periods of the IAG General Assembly. Due to the ongoing COVID-19 pandemic, the Assembly will be organized as a hybrid meeting.

To learn more about this event, visit the IAG Scientific Assembly event page.

58th IGS Governing Board Meeting
2021-07-07 20:00 - 22:15 | Virtual
Event: 58th IGS Governing Board Meeting
Date/Time: 07July 2021, 20:00-22:15 UTC
Location: Virtual

This is a closed meeting for the IGS Governing Board.

AOGS Virtual 18th Annual Meeting
2021-08-01 - 2021-08-06 | Virtual
Event: AOGS 18th Annual Meeting
Dates: 1-6 August 2021
Location: Virtual

To learn more about this event, visit AOGS 18th Annual Meeting (AOGS2021) event page.

11h Session of the UN-GGIM
2021-08-23 - 2021-08-27 | Virtual
Event: Eleventh Session of the United Nations Committee of Experts on Global Geospatial Information Management (UN-GGIM)
Dates: 23, 24 & 27 August 2021
Location: Virtual

The United Nations Economic and Social Council at its 8th plenary meeting on 8 June 2021 noted the constraints related to the continuing impact of the coronavirus disease (COVID-19) on the working arrangements of the Council and sessions of its subsidiary bodies. With its Decision 2021/233, decided to reschedule the holding of the eleventh session of the Committee of Experts on Global Geospatial Information Management, which shall be held in a scaled-down format using a virtual remote simultaneous interpretation platform, on 23, 24 and 27 August 2021, and that decisions of the Committee shall be adopted through a silence procedure.
To learn more about this event, visit the Eleventh Session of the United Nations Committee of Experts on Global Geospatial Information Management (UN-GGIM) event page.

Tour de l'IGS 2nd Stop: Infrastructure
2021-09-01 20:00 - 22:30 | Virtual
For presentations and videos from this event, visit the Tour de l’IGS Presentations.
What is the Tour of the l’IGS?
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.
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.

Where is the event?
Virtually, in an around-the-world clock format. The event will take place on 01 September at 20:00 UTC. Please use the calendar links below to add this event to your calendar.

How do I participate?
Registration is now closed. We will be using Zoom as the platform for the workshops. Registration is required and limited to 300 participants to ensure accountability and accessibility to online resources. Participants will obtain the meeting link upon completion of the registration.

Fifteenth Meeting of the UN ICG (ICG-15)
2021-09-27 - 2021-10-01 | Vienna International Centre (VIC), Vienna, Austria
Event: Fifteenth Meeting of the UN International Committee on Global Navigation Satellite Systems (ICG-15)
Dates: 27 September – 1 October 2021
Location: Vienna International Centre; Vienna, Austria

The Fifteenth Meeting of the UN International Committee on Global Navigation Satellite Systems (ICG-15), hosted by the United Nations Office for Outer Space Affairs (UNOOSA), will convene from 27 September through 1 October 2021 in the Vienna International Centre in Vienna, Austria.
To learn more about this event, visit the Fifteenth Meeting of the International Committee on Global Navigation Satellite Systems (ICG-15) event page.

Unified Analysis Workshop (UAW) 2021
2021-10-05 08:00 - 2021-10-08 17:00 | Munich, Germany and Online
Event: Unified Analysis Workshop (UAW) 2021
Dates: 5-8 October 2021
Location: Munich, Germany; Virtual

The Unified Analysis Workshop (UAW) 2021 will be held in October 2021 (5-8) in Munich and it is planned as a hybrid meeting (in-person and online).
To learn more about this event, visit the Unified Analysis Workshop (UAW) 2021 event page.

GGOS Days 2021
2021-10-11 08:00 - 2021-10-13 17:00 | Munich, Germany and Online
Event: GGOS Days 2021
Dates: 11-13 October 2021
Location: Virtual

GGOS Days is the annual meeting of GGOS during which the different components of GGOS meet and report on their activities during the past year and their plans for the coming year. Everyone is encouraged to attend! The GGOS Days 2021 will take place from October 11-13 in Munich, Germany. It is planned as a hybrid meeting, so everyone can participate at least virtually.
To learn more about this event, visit the GGOS Days 2021 event page.

SIRGAS Symposium 2021
2021-11-29 - 2021-12-01 | Virtual
Event: SIRGAS Symposium 2021
Dates: 29 November to 1 December 2021
Location: Online
A new edition of the SIRGAS Symposium will take place from Nov 29 to Dec 1, 2021. The main goal of the Symposium SIRGAS2021 is to convene the geodetic community of the Americas and the Caribbean to exchange experiences and progress, as well as discuss new projects related to the implementation, maintenance, and use of the geodetic reference infrastructure in the region.
To learn more about this event, visit the SIRGAS Symposium 2021 event page.

4th Associate Member Meeting
2021-12-06 21:00 - 2021-12-07 00:00 | Virtual
Event: 4th Associate Member & Working Group Open Meeting “Connected by GNSS”
Date/Time: 21:00 UTC on 06 December to 00:00 UTC on 07 December (06 December 1:00-4:00 PM PST)
Location: Virtual
Register: 4th Associate Member & Working Group Open Meeting Registration (Registration closed)

Dear IGS Associate Members and Friends,
We are happy to announce that we will hold a virtual Associate Member and Working Group morning open meeting on Monday, 6 December 2021 at 21:00 UTC via Zoom.
The Open Associate Member meeting is open to all IGS Associate Members, Governing Board, and Former Governing Board Members of the IGS, and observers who would like to learn more about the IGS. Its intention is to be a forum for our Associate Members and friends to gather in between workshops to discuss ideas, learn about the IGS and its Working Groups.
This session will provide an opportunity for the working group chairs to update both governing board members and associate members on progress / issues resulting from the most recent workshop recommendations and virtual Tour de l’IGS.
Additionally, we will be discussing the strategic goals and objectives of the new IGS 2021+ Strategic Plan as we work toward a strong and resilient multi-GNSS Service.
It will also provide a forum for discussion about how to move forward with working group activities as we head towards the Boulder Workshop (28 June to 1 July, 2022). The presentations will be short (5 minutes each) with 5 minutes for discussion after each.
Participants who are new to the IGS, or would like to join an IGS Working Group, are especially welcome.

Registration is now closed.
To view the agenda and meeting videos/presentations visit Associate Member Meetings.

59th IGS Governing Board Meeting
2021-12-07 21:00 - 2021-12-08 00:00 | Virtual
Event: 59th IGS Governing Board Meeting
Date/Time: 7 December 2021 21:00 UTC to 8 December 2021 00:00 UTC
Location: Virtual

This is a closed meeting for the IGS Governing Board.

AGU Fall Meeting 2021: Science is Society
2021-12-13 - 2021-12-17 | New Orleans Ernest N. Morial Convention Center, 900 Convention Center Blvd, New Orleans, LA, 70130, United States
Event: AGU Fall Meeting
Dates: 13-17 December 2021
Location: New Orleans, LA, USA and Online

#AGU21: Science is Society
AGU Fall Meeting is the primary gathering for Earth and space scientists, students, and those in affiliated fields to share scientific findings and identify innovative solutions. With in-person and worldwide online participation, attendees will have numerous opportunities to network with government regulators, scientific visionaries, and industry thought-leaders. Join our diverse community in New Orleans and Online Everywhere. 13 – 17 December 2021.
To learn more about this event, visit the AGU Fall Meeting event page.

ION PTTI Meeting
2022-01-24 - 2022-01-27 | Long Beach, CA, Long Beach, CA, United States
Event: ION Precise Time and Time Interval Meeting (PTTI)
Dates: 24-27 January 2022
Location: Long Beach, CA, USA

In 2022, PTTI will take place in Long Beach, California, January 24- 27, 2022, and will be co-located with the ION International Technical Meeting.
To learn more about this event, visit the PTTI Meeting event page.

Tour de l'IGS 3rd Stop: GNSS processing based on IGS products
2022-02-17 17:00 - 20:00 | Virtual
For presentations and videos from this event, visit the Tour de l’IGS Presentations.

What is the Tour of the l’IGS?
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.
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)

Where is the event?
Virtually, in an around-the-world clock format. The event will take place on 17 February 2022 at 17:00 – 20:00 UTC. Please use the calendar links below to add this event to your calendar or use the calendar links in the Zoom registration confirmation email.

How do I participate?
Registration is now closed. We will be using Zoom as the platform for the workshops. Registration is required and limited to 300 participants to ensure accountability and accessibility to online resources. Participants will obtain the meeting link upon completion of the registration.

EUREF 2022 Symposium
2022-05-01 | Zagreb, Croatia, Zagreb, Croatia (Local Name: Hrvatska)
Event: EUREF 2022 Symposium
Dates: May/June 2022 [exact dates TBD]
Location: Zagreb, Croatia

The EUREF 2022 Symposium will take place May/June 2022 [exact dates TBD]

Group on Earth Observations Virtual Symposium 2022
2022-05-02 - 2022-05-06 | Virtual
Event: Group on Earth Observations Virtual Symposium 2022
Dates: May 2-6
Location: Virtual

To learn more about this event, visit the Group on Earth Observations Meetings page.

60th IGS Governing Board Meeting
2022-05-02 20:00 - 2022-05-03 22:00 | Virtual
Event: 60th IGS Governing Board Meeting
Date/Time: 2-3 May 20:00-22:00 UTC
Location: Virtual

Session 1 (GB 60A): Monday 2 May, 20:00 – 22:00 UTC
Session 2 (GB 60B): Tuesday 3 May, 20:00 – 22:00 UTC
