Programme

ISSI Workshop on Earth Gravity Field from Space
Programme

Monday, 11 March 2002
Opening Session
0830–0900			Registration
0900–0915	R. von Steiger		Welcome, logistics
0915–0930	R. Rummel		Opening statements; micro-gravity and Earth sciences
Session 1a: Precise Orbit Determination and Gravity Field Modelling
0930–1000	U. Hugentobler		Strategies for precise orbit determination for low Earth orbiters using GPS
1000–1030	P. Visser		Aiming at the 1-cm orbit for Low Earth Orbiters: reduced- dynamic and kinematic precise orbit determination
1030–1100			Coffee
1100–1130	A. Milani		Modelling non-gravitational forces in fully dynamical OD from band-limited accelerometer/gradiometer data
1130–1200	N. Sneeuw		Solution strategies in gravity field modelling; feasibility, precision; cases of CHAMP, GRACE and GOCE
1200–1230	G. Balmino		Gravity field recovery from GRACE; unique aspects of the high precision inter-satellite data and analysis methods
1230–1400			Lunch
Session 2a: Solid Earth Physics
1400–1430	H. Schmeling		The gravity signal of mantle convection
1430–1500	M. E. Tamisiea		Patterns of sea level change
1500–1530	A. M. Marotta		Combined effects of tectonics and glacial isostatic adjustment on the style of crustal deformation
1530–1600			Tea
1600–1630	B. Vermeersen		The potential of GOCE in constraining the structure of the crust and lithosphere from post-glacial rebound
Session 3a: Ocean Circulation
1630–1700		C. Wunsch		The symbiosis of ocean circulation estimates, altimetry, and gravity field measurements
1700–1730		C. Le Provost		Resolution needed for the determination of the mean ocean circulation from altimetry and improved geoids
1730–			Welcome Drink

Tuesday, 12 March 2002
Session 3a (cont.): Ocean Circulation
0830–0900
0900–0930	E. J. O. Schrama		Error characteristics estimates from CHAMP / GRACE / GOCE derived geoids and from altimetry derived mean dynamic topography
0930–1000	D. B. Stammer		Combining altimetric and geoid information to obtain the most adequate global ocean circulation estimates?
1000–1030	S. Imawaki		High-resolution geoid estimates through detecting oceanic mesoscale features by combined use of altimeter and drifter data
1030–1100		Coffee
Session 4a: Geodesy
1100–1130	F. Sansò		Unification of height systems – what is possible?
1130–1200	P. Knudsen		Ocean tides effects in GRACE gravimetry
1200–1230	R. D. Ray		Analysis of tidal models – before and after GRACE
1230–1400		Lunch
1400–1430	M. Vermeer		The stationary geoid. Does it exist? Are we able to determine it?
Session 5a: Sea Level
1430–1500	P. Woodworth		Introduction; benefits of GOCE and GRACE to sea level studies
1500–1530	J. Wahr			What might GRACE contribute to studies of post glacial rebound and ice sheet mass balance?
1530–1600				Tea
1600–1630	R. Sabadini			Benefits to tectonics etc.
1630–1700	S. Nerem			Contribution of GRACE to sea level change studies using satellite altimetry
Session 6a: Future Concepts
1700–1730	K. Danzmann			Gravity from space, concepts in the space science fundamental physics community
1730–1800

Wednesday, 13 March 2002
Session 6a (cont.): Future Concepts
0830–0900
0900–0930		P. Martella		Attitude and drag control: an application to the GOCE satellite
0930–1000		S. Zarembinski		High temperature superconductive gradiometry
Session 1b: Precise Orbit Determination and Gravity Field Modelling
1000–1030	P. Schwintzer			Processing non-differenced GPS observations of a LEO for precise OD and gravity modelling: results from CHAMP
1030–1100				Coffee
1100–1130	R. Biancale		Simultaneous use and calibration of accelerometer data for and from orbit and gravity field determination
1130–1200	W. D. Schuh		The processing of band-limited measurements; filtering techniques in the least squares context and in the presence of data gaps
1200–1230	G. Balmino		Discussion session 1, with introduction on specific new problems.
1230–1400			Lunch
1400–1830			Excursion to Avenches and Murten Departure by bus in front of ISSI at 14:00 sharp
1900–				Workshop Dinner (shifted from Thursday!) at Zunfthaus zu Webern, Gerechtigkeitsgasse 68, Bern

Thursday, 14 March 2002
Session 2b: Solid Earth Physics
0830–0900
0900–0930	W. Spakman		Seismic tomography
0930–1000	R. de Franco		Deep and shallow structures reconstructed with sequential integrated inversion of seismic and gravity data
1000–1030	A. Cazenave		Present-day sea level change: observations and causes
1030–1100			Coffee
1100–1130	R. Sabadini		Discussion session 2
Session 3b: Ocean Circulation
1130–1200	K. Haines		How can we improve geoid estimates at high resolution? Combined use with altimetry and in situ data for coastal dynamic studies
1200–1230	C. W. Hughes		Feasibility and contribution to ocean circulation studies of bottom pressure determination
1230–1400			Lunch
1400–1430	P. Le Grand		Impact of geoid improvement on ocean mass and heat transport
1430–1500	P. Y. Le Traon		How operational oceanography can benefit from dynamic topography estimates as derived from altimetry and improved geoid?
1500–1530		C. Le Provost		Discussion session 3
1530–1600				Tea
Session 4b: Geodesy
1600–1630	R. Koop		Geodetic methods for calibration/validation of GRACE and GOCE
1630–1700		J. O. Dickey		Mass exchange effects on center of mass and rotation
1700–1730		R. Haagmans		Discussion session 4
1730–1800

Friday, 15 March 2002
Session 5b: Sea Level
0830–0900	J. Wahr & A. Cazenave	Value to global water budget studies
0900–0930	B. F. Chao	Geophysical validation of time-variable gravity signals measured from space
0930–1000	P. Woodworth	Discussion session 5
Session 6b: Future Concepts
1000–1030	J. Lumley, pres. by M. Aguirre	Cryogenic gradiometry developments in Europe
1030–1100		Coffee
1100–1130	P. Bender		Satellite-satellite laser links for future gravity missions
1130–1200	P. Touboul		Microscope, or development lessons of the GOCE instrument
1200–1230	M. Aguirre-Martinez		Criticality of future gravity mission concepts
Closing Session
1230–1245	M. Drinkwater	ESA Living Planet programme / GOCE mission
1245–1300	G. Beutler		Closing statements
1300			Adjourn

ISSI Workshop on Earth Gravity Field from Space Programme

ISSI Workshop on Earth Gravity Field from Space
Programme