Other
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufm.p33d..01l&link_type=abstract
American Geophysical Union, Fall Meeting 2009, abstract #P33D-01
Other
[1221] Geodesy And Gravity / Lunar And Planetary Geodesy And Gravity, [5417] Planetary Sciences: Solid Surface Planets / Gravitational Fields, [5430] Planetary Sciences: Solid Surface Planets / Interiors
Scientific paper
Bouguer gravity anomaly (BGA) reveals density structures of planets. Using the new lunar topography data measured by Chang’E-1 Laser Altimeter, we have calculated the Bouguer gravity anomaly (BGA) of the Moon based on gravity field model LP165P. Two different terrain correction (i.e., Bouguer correction) methods are compared. One is using spheric harmonic coefficients of topography model (CLTM-s01) to directly derive the coefficients of BGA model and another is utilizing the grid data in spatial domain to calculate the terrain gravitational attraction then to obtain the BGA data. We find that two results agree well when the former method includes the two spheric harmonic terms (n=0,1) of topography model. The obtained BGA is analysed and used to identify the lunar mascon basins instead of the free air gravity anomaly. Here, we propose that the South Pole-Aitken (SPA) basin is the largest mascon basin on the Moon based on BGA. In the light of the potential theory, magnitude of anomaly for a shallow depth source will decline more quickly than deep ones with the observation height rising. The characteristics of sixteen known mascon basins are different for each basin. However, the Mare Orientale is quite similar with the Mare Smythii, indicating that the two mascons have the same depth of mass centers although their crustal thicknesses are different. Based on the residual BGA, we have also modeled cylinder masscons beneath several maria according to the mantle uplift hypothesis and the basalts filling. The results show that the crustal in Imbrium and Serenitatis are thicker than other maria in lunar nearside, and their centers of masses are the deepest ones.
Chen Bohui
Chen Chian-Chou
Du Jiulin
Liang Qifeng
No associations
LandOfFree
Calculation of lunar Bouguer gravity anomaly using Chang'E-1 topography data: Interpretation for mascons does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Calculation of lunar Bouguer gravity anomaly using Chang'E-1 topography data: Interpretation for mascons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Calculation of lunar Bouguer gravity anomaly using Chang'E-1 topography data: Interpretation for mascons will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1771546