The GGOS Contribution to GEOSS and an Observing System for Geohazards and Disaster Prevention A GEO Workshop organized by the Global Geodetic Observing System (GGOS) November 5-6, 2007 Frascati, Italy A Contribution to the International Geohazards Week

IAG

This page is not yet complete and a number of presentations and pictures are not available

Workshop Summary Page

Monday, 5 November 2007

09:00 - 10:30 Opening Session, Chairs: Volker Liebig and Markus Rothacher

	Presenter and Title	Main Message	Links
	Volker Liebig: ESA's plans in Earth observation with a particular view on GMES, Europe's contribution to GEO	The accurate global geodetic reference frame provided by GGOS is fundamental for satellite missions and Earth observation and ESA will contribute also in future with its satellite missions and systems providing the signals and observations necessary for GGOS to provide this service.	presentation, Abstract
	Giovanni Bignami: The contribution of the Italian Space Agency (ASI) to GGOS	Recognizing the importance of geodetic observations and products such as the global reference frame, ASI has supported GGOS with satellite missions such as LAGEOS-II and ground stations, and ASI will continue to support GGOS.	presentation, Abstract
	Teresa Fryberger: The Role of GGOS in Earth Observation and Space Exploration	The global geodetic reference frames and geodetic observations of changes in the Earth's surface, gravity field, and rotation are crucial for NASA's Earth science goals, and NASA will continue to support GGOS with in situ and space-borne sensors and other infrastructure necessary to continue the geodetic service for science.	presentation, abstract
	Jose Achache and Giovanni Rum: The Contribution of GGOS to GEOSS: The view from GEO	GGOS with the IAG Services is an example of successful international cooperation and coordination on the basis of best efforts, but the importance of the infrastructure of GGOS necessary to maintain the global geodetic reference frame as a core element contributing to GEOSS warrants a focus on obtaining operational funding for this infrastructure.	presentation, Abstracts

11:00 - 15:30 Session 1: Observing changes in Earth's shape, rotation and gravity field with an integrated observing system, Chairs: Ruth Neilan and Michael Pearlman

	Presenter and Title	Main Message	Links
	Rothacher, M., Neilan, R., Plag, H.-P.: The Global Geodetic Observing System Observing	GGOS is a large organization with many contributors and supporters and an extensive Earth observation system utilizing infrastructure maintained to a large extent outside of GGOS by space agencies and national governmental agencies.	presentation, abstract
	Blewitt, G. and Altamimi, Z.: Providing a Stable Reference frame for Observing the Effect of Global Climate Change on Sea Level	The (high) accuracy of the reference frame is a key limitation in quantifying global change processes such as sea level changes.	presentation, abstract
	Gross, R., Lavalle, D., Blewitt, G., Clarke, P.: Consistency of Earth Rotation, Gravity, and Shape Measurements	Achieving consistency across the three pillars of geodesy and between observations and models is a key challenge for GGOS.	presentation, abstract
	Boehm, J., Wresnik, J, Schuh, H., Behrend, D.: Towards a new VLBI system for geodesy and astrometry	Example VLBI2010: Technological progress driven by user requirements will lead to improved products.	presentation, abstract
	Pearlman, M, Noll, C, McGarry, J., Gurtner, W., Pavlis, E.: The International Laser Ranging Service and its support for GGOS and Earth Sciences	Example SLR: A key contributor to GGOS/ITRF but also a service in support of satellite mission.	presentation, abstract
	Pavlis, E.: Designing a Global Geodetic Network to Support GGOS	Network simulations: Can network improvements alone ensure that GGOS reaches its accuracy goals?	presentation, abstract
	LaBrecque, J.: The Next Generation Geodetic Network	The US National Research Council's Decadal Study has recognized the contributions and importance of the space geodetic science, technology, and infrastructure in expanding our knowledge of the Earth System. The Decadal Study recommended that NASA and NOAA launch a multitude of space geodetic missions within the next decade. The mission range from GPSRO satellites, ice and ocean altimeters, geodetic imagers, and a GRACE follow-on. Space geodetic science also is guiding our exploration of the solar system and the universe beyond. In this regard the global geodetic networks could be viewed as a geodetic telescope navigating the universe, measuring its movements, and understanding its fundamental principles.	Presentation, Abstract

16:00 - 18:00: Session 2: Understanding the Earth system: The contribution of GGOS, Chairs: Richard Gross and Susanna Zerbini

	Presenter and Title	Main Message	Links
	Wu, X., Dong, D., Gross, R., Heflin, M., Moore, A., Oyafuso, F., Owen, S.: The seasonal cycle in global mass transport: Combining geodetic observations to get the picture	Mass redistribution at seasonal time scales is well constrained by the three pillars of geodesy, but understanding the driving processes requires a combination of different parameters.	presentation, abstract
	Schmidt, R., Flechtner, F., Kusche, J.: Detection of the Earth's time-variable gravity field using GRACE	GRACE facilitated huge progress in monitoring time-variable gravity and understanding the underlying mass redistribution (water cycle), but different processes cannot be separated without additional input (models or observations).	presentation, abstract
	Rohm, W., Bosy, J.: The GPS tropospheric tomography as an GGOS contribution to water vapour distribution studies	Geodetic observations provide a sensing of the atmosphere at local and regional scale: Example tropospheric water content.	presentation, abstract
	Plag, H.-P.: Towards a Future Predictive Non-Linear Terrestrial Reference Frame for Improved Early Detection of Geohazards and Disaster Mitigation	Global change and geohazards phenomena are inherently linked with the reference frame: a combination of physical models and geodetic observations may be required in order to facilitate a better understanding of these phenomena.	presentation, abstract, see also Plag et al., 2007: Towards a Consistent Conventional Treatment of Surface-Load Induced Deformations, or directly pdf

Tuesday, 6 November 2007

08:30 - 13:00: Session 3: GGOS and Geohazards, Chairs: Hans-Peter Plag and Stuart Marsh

	Presenter and Title	Main Message	Links
	Blewitt, G., Kreemer, C., Hammond, W., Plag, H.-P.: Realizing the potential of GGOS for Geohazard Prediction and Early Warning	Prediction and Early warning systems work best if mutually informed and consistent, and GGOS has the bandwidth and should play both roles.	presentation, abstract
	Donnellan, A.: Earthquakes, volcanoes, land slides: Geodetic contributions and challenges for geodesy	InSAR is extremely versatile for the early detection of hazardous areas and thus can enable informed decisions on where to invest in dedicated monitoring systems.	presentation, abstract
	Kosuke Heki: Geodetic contributions to studies of the physics of earthquake	GPS reveals (1) nearly periodic slow seismic events accounting for significant energy release, (2) upward traveling seismic waves in the atmosphere, and GRACE senses gravity signals associated with large seismic event.	presentation, abstract
	Schoene, T, Rothacher, M.: GGOS Contributions for Early Warning Systems	Geodesy/GGOS contributes to tsunami early warning system in several ways.	presentation, abstract
	Diament, M., Panet, I., Mikhailov, V., deViron, O.: What does satellite gravity bring to the understanding and monitoring of large earthquakes?	Gravity from space can help to mitigate the lack of geodetic infrastructure on the ocean floor.	presentation, abstract
	Lognonne, P., Occhipinti, G., Kherani, A., Garcia, R., Crespon, F., Jeansou, E., Mimoun, D.: Ionospheric seismology: a new perspective in Earth Observation	Earth surface is no longer frontier of seismology: Remote sensing of seismic waves and tsunamis from space appears possible and could be a component in early warning systems.	presentation, abstract
	Bonaccorso, A., Aloisi, M., Bonforte, A., Gambino, S., Guglielmino, F., Mattia, M., Palano, M., Puglisi, G.: Volcanic hazard reduction at Sicilian volcanoes (South Italy) by integrating satellite and terrestrial geodetic monitoring systems	Combining terrestrial and space-geodetic techniques results in comprehensive monitoring of surface displacements at volcanoes and particularly in hazardous areas.	presentation, abstract
	Papale, P., Longo, A., O'Brien, G., Vassalli, M., Saccorotti, G., Bean, C., Barbato, D., Barsanti, M.: Early warning system at active volcanoes: establishing a link between geodetic observations and deep magma dynamics	Understanding the link between the geodetic parameters and magma dynamics is important for early warning applications at volcanoes.	presentation, abstract
	Plag, H.-P.: Workshop Summary		presentation