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</o:shapelayout></xml><![endif]--></head><body lang=DE link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Dear colleagues,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>we would like to draw your attention to Geodesy on Mars and invite you to submit your contribution to the session PS1.4 “The future of geodesy at Mars”. Although the primary focus is gravimetry, contributions leading to better observations of Mars are very welcome. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Geodetic measurements from space missions to distant worlds have revealed oceans of liquid water within icy moons, probed the atmospheric dynamics of gas giants, and characterized the deep structure of terrestrial worlds. The power of geodesy is best demonstrated at the Earth and Moon, where spacecraft missions have transformed geodesy from a purely geophysical tool into one that unlocks advances in geology, climate change, hydrology, geochemistry, and more. While geodesy in the Earth-Moon system has flourished with the GRACE, GOCE and GRAIL gravity mapping missions, geodesy at Mars has lagged behind. The NASA’s Insight mission has shown that the interior of Mars is seismically active. However, important questions about the Martian crustal structure remain unanswered. New geodetic data from a dedicated gravity mapping mission could be used to locate hidden water resources on Mars, elucidate the nature of Martian crustal dichotomy as well as reveal the connections between Martian climate and orbital dynamics.<br><br>This session aims to explore the scientific gain from the next generation gravimetry at Mars as well as to start the discussion on measurement requirements necessary to create lasting benefit. The session welcomes contributions on current solid Mars research, mass change due to the dynamics of volatiles, as well as synergies between gravity mapping and other remote and in-situ observations of Mars.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>On behalf of the conveners, Matthias Weigelt<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Conveners: Lisa Woerner <span class=d-none>| </span>Co-conveners: Bart Root, Özgür Karatekin, Anton Ermakov, Manuel Schilling<o:p></o:p></span></p></div></body></html>