************************************************************************ IERS Message No. 457 May 02, 2022 ************************************************************************ 2nd IAG Commission 4 Symposium "Positioning and Applications" Announcement International Association of Geodesy (IAG) 2nd International Symposium of IAG Commission 4 September 5-8, 2022 Potsdam, Germany https://iag-commission4-symposium2022.net/ We are pleased to announce that the second Symposium of the International Association of Geodesy (IAG) Commission 4 "Positioning and Applications" will be held during the week of September 5-8, 2022 in Potsdam, Germany. All interested individuals are invited to attend the meeting. The 2nd IAG Commission 4 Symposium brings together scientists, researchers and professionals dealing with the broad area of positioning and applications. For this purpose, it will facilitate the discussion of research that leverages current and emerging positioning techniques and technologies aiming at delivering both practical and theoretical solutions for engineering and mapping applications, GNSS-based technologies, sensors fusion, and atmospheric remote sensing, modelling, and applications, based on geodetic techniques. Recognizing the central role of Global Navigation Satellite Systems (GNSS) in providing high accuracy positioning information today and in the future, the 2nd IAG Commission 4 Symposium will focus on ongoing research for improving models and methods that enhance and assure the performance of GNSS-based positioning solutions for a wide range of geodetic applications. The 2nd IAG Commission 4 Symposium will be devoted to the discussion of theory, strategies and tools for modelling and/or mitigating the effects of interference, signal loss and atmospheric effects as they apply to precise GNSS and other space geodetic techniques. They will address the technical and institutional issues necessary for developing backups for GNSS, integrated positioning solutions, automated processing capabilities and quality control measures. Besides positioning, another focus of the 2nd IAG Commission 4 Symposium will be on remote sensing and modelling of the lower and upper atmosphere. The Space Geodesy and Ionosphere (SGI) Workshop in 2022 is embedded in this event. This symposium will be carried out in close cooperation with the International GNSS Service (IGS), the IAG Global Geodetic Observing System (GGOS) Focus Area "Geodetic Space Weather Research", as well as via linkages with relevant entities within scientific and professional sister organizations. The Symposium will be co-sponsored by the International Association of Geomagnetism and Aeronomy's (IAGA) Inter- Divisional Commission on Space Weather and the Division II "Aeronomic Phenomena" Working Group IIC "Meteorological Effects on the Ionosphere". Further partners are the Institute of Navigation (ION), the Technische Universitaet Berlin and the GFZ Potsdam. Host Agency: GFZ Potsdam Local Organizing Committee: Anja Boehmer Robert Heinkelmann Harald Schuh Scientific Organizing Committee: Allison Kealy (Chair) Christina Arras Sharyl Byram Suelynn Choy Ehsan Forootan Vassilis Gikas Robert Heinkelmann Ana Paula Larocca Jiyun Lee Laure Lefevre Stefan Lotz Laura Ruotsalainen Marcelo Santos Michael Schmidt Harald Schuh Pawel Wielgosz Important dates: Announcement: May, 2022 Abstract submission and registration will start soon. Abstract submission deadline: June 18, 2022 End of pre-registration: July 31, 2022 More information about the program and logistics will be provided in the second announcement in mid May. We are looking forward seeing you in Potsdam. Allison Kealy IAG Commission 4 President and Chair of Scientific Organizing Committee Anja Boehmer, Robert Heinkelmann, Harald Schuh Local Organizing Committee ************************************************************************ IERS Messages are edited and distributed by the IERS Central Bureau. If not stated otherwise, the IERS is only the distributor of the message and is not responsible for its content. To submit texts for distribution, please write to . To subscribe or unsubscribe, please create an IERS account or modify it: https://www.iers.org/Login/Login/EN/login_node.html or write to . Archives: http://www.iers.org/IERS/Messages ************************************************************************