Kilometer-resolution gravity field of Mars: MGM2011
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NOTICE: this is the author’s version of a work that was accepted for publication in Planetary and Space Science. A definitive version was subsequently published in Planetary and Space Science, Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Planetary and Space Science, Volume 67, Issue 1, July 2012, pp. 147–154, http://dx.doi.org/10.1016/j.pss.2012.02.006.
We present a model that resolves the gravity field of Mars down to km-scales: Mars Gravity Model 2011 (MGM2011). MGM2011 uses Newtonian forward-modelling and the MOLA (Mars Orbiter Laser Altimeter) topography model to estimate the short-scale gravity field (scales of ~3 km to ~125 km). Combined with a reference gravity field and the satellite-tracking model MRO110B2, MGM2011 provides surface gravity accelerations and vertical deflections over the entire Martian surface at 3 arc-min resolution. MGM2011 is beneficial for gravity field simulation, inversion and statistics, as well as engineering-driven applications such as topographic mapping and inertial navigation.
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Hirt, Christian; Claessens, Sten; Kuhn, Michael; Featherstone, Will (2012)Curtin University’s Mars Gravity Model 2011 (MGM2011) is a high-resolution composite set of gravity field functionals that uses topography-implied gravity effects at medium- and short-scales (~125 km to ~3 km) to augment ...
Hirt, Christian; Featherstone, Will (2011)We present a high-resolution lunar gravity field model (LGM2011) that provides gravity accelerations, free-air gravity anomalies, selenoid undulations and vertical deflections over the entire Moon’s surface. LGM2011 is ...
Hirt, Christian; Rexer, M.; Claessens, Sten (2015)ESA (European Space Agency) has released a series of new-generation Earth gravity field models computed from gradiometry and GPS observations carried out aboard the GOCE (Gravity field and Ocean Circulation Explorer) ...