Time periods, spatial resolution, and accuracy: from geophysical requirements to mission scenarios

Jakob Flury (1), Reiner Rummel (2), Nico Sneeuw (3)
(1)Institut fuer Erdmessung, Leibniz Universitaet Hannover
(2)Institut fuer Astronomische und Physikalische Geodaesie, TU Muenchen
(3)Geodaetisches Institut, Universitaet Stuttgart

Science requirements for the next generation of satellite gravity missions have been discussed since the launch of GRACE. In ESA studies, requirements from all fields of Earth sciences were collected. Results were compiled into synoptic tables and presented in well-known "bubble" diagrams. We will use these results and tables to discuss key geophysical requirements. Discussion will include a comparison with recent findings and lessons from GRACE. Simulated gravity field accuracies will be used to show the potential of mission scenarios such as inter-satellite laser ranging and gradiometry in view of key science requirements.