************************************************************************ IERS Message No. 441 November 04, 2021 ************************************************************************ Symposium on Reference Frames for Applications in Geosciences On behalf of the Organizing Committee, I am honored to invite you to the IAG International Symposium on Reference Frames for Applications in Geosciences (REFAG 2022), which is organized by the Aristotle University of Thessaloniki, under the scientific coordination of Commission 1 of the International Association of Geodesy (IAG). The symposium will be held in Thessaloniki, Greece on October 17-21, 2022. REFAG 2022 carries on the tradition of previous IAG dedicated symposia on Reference Frames (Munich 2006, Marne-la-Vallee 2010, Luxemburg 2014, Pasadena 2018), aiming to bring together leading experts from academia, public authorities and private sector with young scientists, to discuss current achievements and future challenges of geodetic reference frames and their scientific and societal impact. The primary scope of REFAG 2022 is to address today's theoretical concepts of reference systems and their practical implementation by space geodetic techniques and their combinations, underlying limiting factors, systematic errors and novel approaches for future improvements. The symposium welcomes contributions in all aspects of geodetic reference frames and their applications in Earth science studies, satellite navigation, and also other key areas of geomatics and geospatial information systems. The scientific program of the symposium covers all topics related to the activities of IAG Commission 1 and its subgroups, including also other initiatives and projects which endorse the role of geodetic reference frames towards scientific exploration, sustainable development, land administration, disaster risk reduction and climate monitoring. The symposium proceedings will be published in the IAG Symposia Series by Springer. More information: https://www.refag2022.org/ We look forward to welcoming you in Thessaloniki! C. Kotsakis, Chairman of REFAG 2022 Aristotle University of Thessaloniki, Greece ************************************************************************ 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/Messages ************************************************************************