ESA's gravity field mission GOCE and beyond

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Scientific Context of MissionSolid Earth Physicsanomalous density structureof lithosphere and uppermantle, and better constraintsfor modelling of Earth’sinteriorOceanographydetermination of dynamicocean topography, absoluteocean circulation, and massand heat transferIce Sheetsimproved knowledge ofice sheet mass balanceand from the above, improved rateestimates of Sea Level RiseIV Hotine-Marussi Symposium, Wuhan 29 May - 2 June 2006Geodesyunified height systems,“levelling by GPS” (i.e.orthometric heights)
Mission Requirements• To determine the Earth’s gravity field with anaccuracy of 1 mGal (1 mGal = 10 -5 m/s 2 )• To determine the geoid (= equipotentialsurface for a hypothetical ocean at rest) with 1-2 cm accuracy• achieve this at a resolution or half wavelengthscale of 100 km (approx. degree and order200)IV Hotine-Marussi Symposium, Wuhan 29 May - 2 June 2006
Page 1 and 2: ESA’s gravity field missionGOCE a
Page 3 and 4: ESA’s Living Planet ProgrammeLivi
Page 5: • ESA’s Living Planet Programme
Page 9 and 10: High-Level Processing FacilityAIUB:
Page 11 and 12: Main Technical Challenges Highest s
Page 13 and 14: Gradiometer Structural ModelIV Hoti
Page 15 and 16: Consequence of Launch DelayLaunch i
Page 17 and 18: Meetings and Studies• 3 rd Intern
Page 19 and 20: • ESA’s Living Planet Programme
Page 21 and 22: Swarm Satellite & ConstellationAcce
Page 23 and 24: Swarm and GravityUse of GPS-Baselin
Page 25 and 26: SH-Error CharacteristicsAlong-track
Page 27 and 28: SH-Error Characteristicsfrom Gradie
Page 29 and 30: Simulation results: 1 MonthDegree R
Page 31 and 32: Remarks• Gravity field recovery w
Page 33 and 34: Studies Recently Performed• Gravi
Page 35 and 36: Measurement and control elements of
Page 37 and 38: Satellite-satellite distance measur
Page 39: Future Concepts ?GSP - Mass distrib

ESA's gravity field mission GOCE and beyond

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