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
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
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
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
11:30 – 11:45 WHU’s developments for the GNSS ultra-rapid products and the MGEX precise products
11:45 – 12:00 ACC Discussion
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
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.
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
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.
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
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
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
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
19 February 2016, originator IGS ACC