************************************************************************ IERS Message No. 157 March 29, 2010 ************************************************************************ Session on New Technological Developments in Space Geodesy Dear all, Mike Pearlman, Galera Monico, and I are chairing a session at the Joint Assembly 2010, Iguassu Falls in Brazil on August 8-13 on New Technological Developments in Space Geodesy (session description below). As you can see from the web site http://www.agu.org/meetings/ja10/ of the meeting there will be several other sessions with relevance for space geodesy and its results. There is also a 'Late Breaking Union Session (U15): 2010 Chile Earthquake' where certainly presentations of geodetic results would fit in. Thus, everybody is kindly invited to submit an abstract to our session or to other sessions of the Assembly. Deadline: 31st of March, 2010. Best regards, Harald Schuh The Meeting of the Americas 8 to 13 August 2010, Foz do Iguacu, Brazil New Technological Developments in Space Geodesy Conveners: Harald Schuh, Galera Monica, and Michael Pearlman Over the last 30 years space geodetic techniques (VLBI, SLR, DORIS, GNSS, altimetry, and gravity field missions) have matured to a high standard of accuracy and general performance. Nowadays, the combination of space geodetic measurements is of highest importance to the integration of the three pillars of geodesy that elucidated by the Global Geodetic Observing System (GGOS): Earth's shape (including the oceans), Earth rotation and the Earth's gravity field, as well as their temporal variations. Issues relevant to society such as climate change and natural hazards, and in particular those relying on the reference frame such as sea level rise, are placing ever-increasing demands on performance. On the other hand we notice that many of the SLR and VLBI ground systems presently in the field are aging and deteriorating, and becoming more and more difficult and costly to maintain, making even the current level of product delivery difficult to sustain. GNSS receivers need to be replaced with new models that accommodate more or all of the new GNSS complexes. More attention needs to be given to co-location of techniques which is fundamental to the maintenance and improvement in the reference frame and to the global networks that will be required to meet the reference frame requirements. Improved accuracy, continuous and real-time data flow, and shortened times to product delivery will be a challenge, but fortunately advances in SLR and VLBI in optics, laser technology, antenna manufacture, digital electronics, data transmission technology are enabling improved modes of operation. In the GNSS, GPS and GLONASS continue to evolve and improve (including new technological approaches such as software receivers) and Galileo and Compass are becoming a reality. New space geodetic missions coupled with space geodetic techniques will provide dramatic improvements in altimetry and gravity field measurements. Topics of this session are the new technological developments that are taking place within the IVS, the ILRS, the IGS, the IDS, as well as proposals for future geodetic satellite projects and space missions. This session solicits also presentations about ideas, scenarios and simulation studies for future gravity field and altimetry missions. Contributions are welcome from purely theoretical considerations and simulations to concrete technological realizations. ************************************************************************ IERS Messages are edited and distributed by the IERS Central Bureau. To subscribe or unsubscribe, please write to . Archives: http://www.iers.org/iers/publications/messages/ ************************************************************************