Based on category5 lunar internal structure model calculation of theoretical values of lunar gravity solid tide
Under the influence of tidal forces from earth,the sun,and other planets,periodic changes in the gravity value at any point on the lunar surface are called the theoretical value of lunar gravity solid tides.Studying the lunar gravity solid tide helps us better understand the internal structure,crustal movement,and evolution of the moon.This also provides important scientific basis for lunar missions and exploration,helping us better explore and understand the characteristics and properties of the moon.This article elucidates the reasons for the formation of lunar gravity solid tides,calculates the lunar gravity tidal factor based on the category 5 lunar internal structure model,and proposes a method for calculating the theoretical values of lunar gravity solid tides using the ELP2000-85 analytical ephemeris and Eckhardt lunar libration model based on Newcomb theory.Apollo 11 is selected as the measuring station,and the theoretical values of lunar gravity solid tides for one day,one month,and one year are output in the form of waveform diagrams,And explore and discuss the relationship between lunar gravity solid tides and lunar earthquakes.The results show that the theoretical values of lunar gravity solid tides for one day,one month,and one year at this station are-1309 μGal,-1290 μGal,and-1277 μGal,respectively;The minimum values are-1343 μGal,-2349 μGal,and-2349 μGal,respectively;Compared with the earth's gravity solid tide(where coordinates with the same latitude and longitude as Apollo 11 are chosen as the measuring station),the lunar gravity solid tide changes relatively simple,but the fluctuation amplitude is relatively large;It is speculated that there may be some correlation between the gravity solid tide of the moon and deep source lunar earthquakes.
Lunar gravity solid tideGravity tidal factorGravityCategory5 lunar internal structure model