The Analysis of Lunar Gravity Field Characters from SGM100i

Lunar gravity field plays a key role of researching the interior structure of the Moon.SGM100i can well reveal the lunar characters in a global sense owing to the SELENE data.In this research,comparison has been made between SGM100i and the latest model GLGM-3 in aspects like free-air gravity anomalies and selenoid undulations.The distribution of deflections of the vertical(DOV) and their components have also been shown,and relations between the DOV and lunar terrain and mass distribution have been analyzed.The lunar terrain features and mass distribution recovered from there quantities are consistent with the facts,which means DOV and its components should be used in revealing lunar features as well.