Oral Presentations:


Opening Session

Chair: Ruth Neilan

08:45 – 09:00 LOC Welcome – Chris Rizos
09:00 – 09:05 UNSW Welcome – Stephen Foster (head of school)
09:05 – 09:10 IGSCB Welcome – Ruth Neilan
09:10 – 09:15 IAG Welcome – Zuheir Altamimi
09:15 – 09:20 IGS Welcome – Gary Johnston
09:20 – 09:35 ACC – Kevin Choi, Thomas Herring
09:35 – 10:00 The challenges of a multi-GNSS future for IGS – Oliver Montenbruck

Plenary #01 Multi-GNSS and Associated Biases

Co-chairs: Oliver Montenbruck, Stefan Schaer

10:30 – 10:45 Multi-GNSS differential code biases (DCBs) estimation within MGEX Ningbo Wang
10:45 – 11:00 Analysis of differential ISBs for new GNSS signals/satellites Dennis Odijk
11:00 – 11:15 Bias-SINEX Format and Implications for IGS Bias Products Stefan Schaer
11:15 – 11:30 GNSS GEO Satellites Precise Orbit Determination Based on Carrier Phase and SLR Observation Baoqi Sun
11:30 – 11:45 ESOC’s Multi-GNSS Processing Cristina Garcia Serrano
11:45 – 12:00 Reprocessing of GFZ Multi-GNSS product GBM (Geodetic Benchmark) Zhiguo Deng

Plenary #02 Orbit Modelling

Co-chairs: Rolf Dach, Marek Ziebart

13:00 – 13:15 Thermal Re-Radiation Acceleration in the GNSS Orbit Modelling Based on Galileo Clock Parameters Drazen Svehla and Markus Rothacher
13:15 – 13:30 BeiDou Orbit Determination Processes and Products at JPL Anthony Sibthorpe et al.
13:30 – 13:45 A priori solar radiation pressure model for QZSS Michibiki satellite Qile Zhao
13:45 – 14:00 Impact of the SRP model on CODE’s 5-system orbit and clock solution for the IGS MGEX Lars Prange et al.
14:00 – 14:15 Extended Filter For Real-time Multi-GNSS Orbit Determination Bingbing Duan et al.
14:15 – 14:30 Short report on recent working activities and discussion Marek Ziebart and Rolf Dach



09:00 – 10:00 Key Note #1 Todd Humphreys

Plenary #03 ACC Results and Conventions

Co-chairs: Tom Herring, Tim Springer

10:30 – 10:45 Initial results from combining the IGS repro2 orbits and clocks Jake Griffiths
10:45 – 11:00 Error analysis of the IGS repro2 station position time series Paul Rebischung
11:00 – 11:15 Aliasing of GPS satellite phase centre model errors in site position time series
Simon McClusky, Paul Tregoning, Achraf Koulali, Michael Moore, Tom Herring

11:15 – 11:30 Estimating polar motion and polar motion rates by the IGS Analysis Centers
Gerhard Beutler

11:30 – 11:45 WHU’s developments for the GNSS ultra-rapid products and the MGEX precise products
Min Li

11:45 – 12:00 ACC Discussion

Plenary #04 Real-time and formats

Co-chairs: Ken Macleod, Axel Rülke

13:00 – 13:15 IGS real time service – status, future tasks and limitations Axel Rülke, Loukis Agrotis, Werner Enderle, Ken MacLeod
13:15 – 13:30
Real-time challenges of an Australian Positioning Infrastructure Stavros Melachroinos
13:30 – 13:45 EUREF Regional Broadcasters – Redundancy and Monitoring Concepts Wolfgang Söhne et al.>
13:45 – 14:00
Multi-GNSS real-time precise point positioning: GPS, GLONASS, BeiDou, and Galileo
Xingxing Li, Maorong Ge, Mathias Fritsche, Yang Liu, Zhiguo Deng, Jens Wickert, Harald Schuh

14:00 – 14:15 Enhanced PPP Messages with Locally Generated Ionospheric Corrections Ken Harima , Suelynn Choy, Satoshi Kogure
14:15 – 14:30 Implementation of a Global Navigation Satellite System (GNSS) Augmentation to Tsunami Early Warning Systems John L. LaBrecque



Key Note #02 GNSS Radio Occultation Science and Applications Jan Weiss

This presentation covers several topics related to GNSS radio occultation. We begin with background information on the computation of bending angle and refractivity profiles from GNSS measurements recorded in low Earth orbit, as well as derived atmospheric products (temperature, pressure, humidity) used by global weather centers. We review the status of existing and future LEO radio occultation missions, including COSMIC-1 and -2 (Constellation Observing System for Meteorology, Ionosphere, and Climate), Kompsat-5 (Korea Multi-Purpose Satellite), MetOp (Meteorological Operational Satellite Program of Europe), and other missions of opportunity. We summarize the impacts of GNSS radio occultation products on weather prediction models, climate research, and the forecasting of cyclone genesis. Next, we discuss the contributions of IGS data and products to GNSS radio occultation, including ground network observation and navigation data, precise GNSS orbits/clocks, and low Earth orbiter orbits/clocks. We evaluate how orbit and clock product accuracies affect atmospheric retrievals, review validations of current datasets, and discuss challenges associated with incorporating GLONASS observations. Finally, we look ahead to a set of radio occultation observing systems and further opportunities for engaging with the IGS community.


Plenary #05 Ionosphere and Troposphere

Co-chairs: Andrzej Krankowski, Sharyl Byram

10:30 – 10:45 Real-time Demonstration and Benchmark campaigns for developing advanced tropospheric products Jan Dousa
10:45 – 11:00 Refined and site-augmented tropospheric delay models for GNSS applications. Daniel Landskron
11:00 – 11:15 Optimization of tropospheric delay estimation parameters by comparison of GPS-based precipitable water vapor estimates with microwave radiometer measurements Christina Selle
11:15 – 11:30 Cooperative GNSS TEC and GIRO NmF2/hmF2 Monitoring for Rapid Real-time Insight in Global Ionospheric Weather Ivan Galkin
11:30 – 11:45 Diagnosing the Impact of GLONASS Observables on Receiver Bias Estimates Attila Komjathy
11:45 – 12:00 Comparing performances of seven different global VTEC ionospheric models in the IGS context Manuel Hernandez-Pajares

Plenary #06 Reference Frame

Co-chairs: Paul Rebischung, Zuheir Altamimi

13:00 – 13:15 The Geodetic Cloud Computing Service: a new paradigm in GNSS analysis Henno Boomkamp
13:15 – 13:30 Dependency of Geodynamic Parameters on the GNSS Constellation Stefano Scaramuzza et al.
13:30 – 13:45 Correlation of the stochastic proprieties of cGNSS time series with the local environment Rui Fernandes et al.
13:45 – 14:00 The problem of defining the origin of global geodetic reference frames Kurt Lambeck et al.
14:00 – 14:15 DTRF2014: The new DGFI realization of the ITRS Manuela Seitz et al.
14:15 – 14:30 ITRF2014 and the IGS contribution Zuheir Altamimi et al.



Key Note #03 Sea-level change: A scientific and social challenge for the 21st century John Church

Relatively stable sea levels over the two thousand years prior to the 19th century allowed the development of the World’s coastal zone such that now about 150 million people live and 1 trillion dollars of GDP are generated on land less than 1 m above the current day high tide level. These stable sea levels contrast with changes of over 100 m during the glacial/interglacial cycles of the last million years. An increase in sea level over the last 200 years and the projected sea-level rise during the 21st century and beyond are critically important for our modern coastal society.

Understanding past and projecting future regional sea level change is also a significant and multidisciplinary scientific challenge. Understanding of 20th century sea-level rise and our ability to simulate this rise have increased significantly since Munk (2002) outlined the sea-level enigma (the inability to reconcile observations and understanding of 20th century sea-level rise). Future regional sea-level change will result from ocean thermal expansion, loss of mass from glaciers and ice sheets, changes in the storage of water on land, vertical land motion and changes in the Earth’s gravitational field and will be distinguishable from natural variability over most of the global ocean within decades. For continuing business as usual greenhouse-gas emissions, the rate of rise by the end of the 21st century is projected to be similar to that experienced during the last deglaciation of the Earth, with major longer-term commitments. Critically evaluating our understanding of sea level change and reducing uncertainties in projections relies on the highest quality observations of sea level change, as well as the contributions leading to that change

John Church is a CSIRO Fellow. He has published across a broad range of topics in oceanography. His area of expertise is the role of the ocean in climate, particularly anthropogenic climate change and estimating and understanding global and regional sea-level rise. He was co-convening lead author for the Chapter on Sea Level in the IPCC Third and Fifth Assessment Reports. He is a Fellow of the Australian Academy of Science, the Australian Academy of Technological Sciences and Engineering and the American Meteorological Society

Plenary #07 Infrastructure and Calibration

Co-chairs: Nacho Romero, Ralf Schmid

10:30 – 10:45 Estimation of satellite antenna phase center offsets for Galileo. Steigenberger et al
10:45 – 11:00 Satellite antenna phase center offsets and the terrestrial scale in a combined processing of LEO and ground-based GPS observations Maennel and Rothacher
11:00 – 11:15 Evaluating the pre-flight GPS Block IIR/IIR-M antenna phase pattern measurements. Dilssner et al.
11:15 – 11:30 Maximizing interoperability and discoverability of geodetic products and services. Brown et al.
11:30 – 11:45 Collaborative development of a standards-based XML system for IGS site log metadata management and dissemination. Boler et al
11:45 – 12:00 IGS Rinex 3 transition. Romero et al.
Poster Session for Infrastructure and Antennas

Plenary #08 Scientific uses of IGS data and products

Co-chairs: Matt King, Tilo Schӧne

13:00 – 13:15 Performance analysis of GNSS-derived VTEC ingestion into IRI2012 Haixia Lyu
13:15 – 13:30 GNSS H2O: Expanding Reflection Research to the Global GNSS Network For Measuring the Water Cycle Susan E Owen
13:30 – 13:45 Ongoing deformation of Antarctica following recent Great Earthquakes Matt King
13:45 – 14:00 Refining satellite era estimates of global mean sea level rise Christopher Watson
14:00 – 14:15 Aircraft kinematic positioning Thomas Herring
14:15 – 14:30 Precise Time and Frequency Transfer Based on BDS GEO Satellites Xuhai Yang



Special Session #01 Constellation Monitoring

Co-Chairs: Qile Zhao, Satoshi Kogure(tbc)

09:00 – 09:15 Modelling and monitoring the variation of covariance matrices of undifferenced triple-frequency Beidou measurements Yanming Feng
09:15 – 09:30 The stability analysis of GNSS satellite DCB Shuli Song, Junchen Xue, Zhengbiao Zou, Weili Zhou,Wenyao Zhu
09:30 – 09:45 Pseudorange Modeling for Accurate Clock Solutions Yoaz Bar-Sever
09:45 – 10:00 The IGS and ICG IGMA trial project Satoshi Kogure, Qile Zhao, Chris Rizos, Urs Hugentobler, Xurong Dong, Ruth Neilan

Splinter Group Meetings


Poster Presentations

Multi-GNSS / Biases and Calibration

  1. Jianghui Geng – Estimation of fractional cycle biases
  2. Yanming Feng – Uncalibrated signal delays
  3. Lei Fan – BeiDou satellite’s differential code biases estimation based on un-combined precise point positioning with triple-frequency observable
  4. Y. Ning – A new long baseline three carrier ambiguity resolution with ionospheric constraints
  5. Jing Guo – Enhanced precise orbit determination for BeiDou satellites with FengYun 3C on-board GNSS tracking data
  6. Xiangdong An – A new method for GLONASS integer ambiguity resolution
  7. Zhao Wen – Beidou baseline Ambiguity resolution ignoring Inter-Satellite-Type Bias
  8. Baocheng Zhang – Estimation and Characterization of GPS/BeiDou Inter-Receiver Phase Biases
  9. Drazen Svehla – Absolute Code Biases Without Ionosphere Information
  10. Zhou Peiyuan – Analysis of periodic variations of BDS satellite clock offsets
  11. Mathias Fritsche – Multi-GNSS Orbit and Clock Combination: Preliminary Results
  12. Arturo Villiger – GNSS bias handling in the Bernese GNSS Software

Orbit Modelling and Space Vehicle Dynamics

  1. Oscar L. Colombo – Testing a Reverse Kinematic Point Positioning Technique for Possible Operational Use in GPS Data Analysis at NASA’s Goddard Space Flight Center
  2. Yujun Du – Distributed Autonomous Orbit Determination of Navigation Satellites based on Inter-Satellite Links
  3. Qunhe ZHAO – The Solar Radiation Pressure Modeling and Parameter Analysis for Beidou Satellites
  4. Da Kuang – Observed features of GPS block IIF satellites yaw attitude and corresponding modelling
  5. Andrea Maier – GNSS orbit validation using SLR observations at CODE


  1. Kefei Zhang – RMIT PWV Estimation Results
  2. Salim Masoumi – A new model of tropospheric directional gradients in global positioning system and its potential application to investigate specific extreme weather events
  3. Daniel Landskron – Refined and site-augmented tropospheric delay models for GNSS applications
  4. Junping Chen- SHAtropw: the new tropospheric delay model over China continent
  5. Xingxing Li- Multi-GNSS meteorology: Real-time retrieving of atmospheric parameters from GPS, GLONASS, BeiDou and Galileo observations
  6. Sharyl Byram – Repro2 Troposphere products
  7. Rosa Pacione – COST Action ES1206: GNSS for Severe Weather and Climate (GNSS4SWEC)
  8. Yubin Yuan- Real-time Retrievals of ZTD and PWV from Precise Point Positioning
  9. Jan Dousa – Evaluation of GNSS reprocessing tropospheric products using GOP-TropDB
  10. R.Pacione EPN Repro2: a reference tropospheric dataset over Europe


    1. Ningbo Wang – Contribution of BeiDou to ionospheric TEC modeling and monitoring
    2. Cheng Wang – Wuhan analysis centre ionosphere products
    3. Shuli Song – Assessment of Tomography Based on GNSS Observations of the CMONOC in the Topside Ionosphere with DMSP
    4. Ling Huang – VTEC Grid Model for China area using Kriging Combined with VCE
    5. Yanming Feng – Real time generation of Australian Regional Ionospheric Correction for single-frequency GNSS positioning
    6. Zhiguo Deng – Global TEC map based on new mapping function
    7. Stanimir Stamkov – On the use of IGS TEC maps for ionospheric storm-time

    Analysis Centres

    1. YunBin Yuan, Bingfeng Tan, Wenwu Ding, Yongchang Chen, Ningbo Wang, Zishen Li, Min Li, Wei Li, Yafei Ning, Min Song, Teng Liu, Haitao Wang – Status and Progresses at IGG iGMAS Analysis Center(IGGAC)
    2. Loyer Sylvain – CNES/CLS IGS Analysis center: Contribution to MGEX and recent activities
    3. Shushan Fang – Analysis on BDS/GPS WAAS Positioning
    4. Tim Springer – The ESA/ESOC Analysis Centre progress and improvements
    5. François Lahaye – Natural Resources Canada (NRCan) Analysis Center Activities and Products Status
    6. David Murphy – Future plans of the IGS Analysis Center at JPL
    7. Rolf Dach – Activities at the CODE Analysis Center
    8. Aurore Sibois – Transitioning the JPL IGS Analysis Center Operations from GIPSY-OASIS to GIPSYx
    9. Andreja Sušnik – Reprocessing campaign in the framework of the EGSIEM project at AIUB
    10. Sungpil Yoon – Visualizing the Quality of GPS Orbit Solutions

    Infrastructure and Antenna Calibration

    1. Arturo Villiger – Completeness and Consistency of Different IGS RINEX Products Moved to real-time and formats
    2. Frederick Blume – Testing the Susceptibility of GNSS Receivers to Radio Frequency Interference
    3. Anna Riddell – Insights into the IGS Master Antenna
    4. Carine Bruyninx – EPN Central Bureau Upgrades in Support of Evolving EUREF Priorities
    5. Ignacio Romero – The ESA/ESOC GNSS Station Network Maintenance and Expansion
    6. Michael Moore – Geoscience Australia Antenna Calibration Facility
    7. Stefan Schaer – Availability and Completeness of IGS Tracking Data
    8. Elisabetta D’Anastasio – The GeoNet and PositioNZ multi-GNSS networks (New Zealand): future challenges from an IGS network operator point of view
    9. David Maggert – IGS Central Bureau Site Log Manager Supporting Network Coordination
    10. Sarah Doelger – NASA Global GNSS Network

    Real-time and formats

    1. Ryan Ruddick – Geoscience Australia’s GNSS Network and Data Archive – Future Directions
    2. Denis Laurichesse – Fast PPP convergence using multi-constellations and triple-frequency ambiguity resolution
    3. Neumaier, P., Rülke, A., Söhne, W., Stürze, A., Weber, G., Wiesensarter, E – Latency aspects of IGS Real-Time Data and Products
    4. Andrea Stürze – The new version 2.12 of BKG Ntrip Client (BNC)
    5. Guillermo Tobías González – magicGNSS contribution to Real Time IGS Service

    Reference Frames

    1. Xinhui Zhu – Maintaining CGCS2000 frame by nonlinear time series prediction model
    2. Addisu Hunegnaw- IGS TIGA Solution
    3. Myriam ZOULIDA – Inter-technique ties
    4. Guorong Hu – APREF Update
    5. Paul Ries – Benefits and bottlenecks of ITRF2014 at the JPL Analysis Center
    6. Anna Klos – Total Impact of Seasonals and Coloured Noise on Velocity Estimates

    Data Centres

    1. Carey Noll – Developments at CDDIS to Support Real-Time and RINEX V3
    2. Patrick Michael – Important Upcoming Architecture and User Changes at the CDDIS
    3. Mark Schenewerk – Quality Controlling RINEX Navigation Message Files
    4. Jan Dousa – Anubis 1.4 – enhanced tool for multi-GNSS data quality checking in RINEX 3 transition plan

    Impact of IGS Products

    1. Estefania Ortiz Geist – Influence of station distribution on GNSS satellite orbits

    Use of IGS Products/Tide Gauge session

    1. Manuel Hernández-Pajares – The IGS network as a real-time solar and multipurpose scientific instrument
    2. Michael Meindl – Determining sub-daily ERPs and nutation parameters using GNSS: an Update
    3. Felix Perosanz – A review of «integer PPP» applications
    4. BALLU – Vertical and horizontal ground deformation in the South West Pacific islands: what accuracy can we currently reach?
    5. Junping Chen – Real-time Time and Frequency Transfer based on GNSS Network Solution
    6. Richard Gross – Improving EOP Predictions with the IGS Ultra-Rapids
    7. Matt King – Priorities for installation of continuous Global Navigation Satellite System (GNSS) near to tide gauges
    8. Norman Teferle – A First Evaluation of the New GNSS Station Installations at the Tide Gauges of Walvis Bay and Lüderitz in the Republic of Namibia
    9. Sahan Dandeniya – High precision estimation of the parameters for near-surface GNSS reflectometry
    10. Delva Pacome – Periodic component of the gravitational redshift from Galilleo clocks
    11. Gravelle – repro2 results for TIGA stations

    Constellation Monitoring

    1. Weili Zhou – Evaluation of night time VTEC variations in the Klobuchar ionospheric delay model from GIM
    2. Yang Liu – Improving GLONASS Precise Orbit Determination through Data Connection
    3. LI Jianwen – Application of the Comprehensive Evaluation Method Based on TOPSIS In iGMAS
    4. Yumiao Tian – The estimation and characteristics of phase inter-system bias between constellations in relative positioning
    5. Xingxing Li – Multi-GNSS real-time precise point positioning: GPS, GLONASS, BeiDou, and Galileo

    Theory and Application of GNSS

    1. Manuel Hernández-Pajares – Ionospheric delay modelling for single-frequency GNSS precise positioning
    2. Etienne Orliac – ESA project on improving GNSS-based precise orbit determination by using highly accurate clocks
    3. Daniel Arnold – Impact of the ionosphere on GPS-based precise orbit determination of Low Earth Orbiters
    4. Nikta Amiri – The Impact of Time Variable Gravity Field on GPS Precise Orbit Determination


    19 February 2016, originator IGS ACC