Abstract This paper investigates the relationship between the extreme point coordinates of gravity gradients created by submarine and the vertical distance from the submarine to the observation point. Through statistical analysis, we find that, except for Vzz, the other gravity gradient components have multiple extreme points. Numerical results also show that the Y-coordinates of the extreme points of Vxx and Vxz, the central extreme points of Vyy and Vzz do not change with the changes of observation height. The X-coordinate of the central extreme point of Vxx and the extreme points of Vyy,Vyz and Vzz are all non-linear with observation height, but the correlations between X-coordinates of these values and the observation height are not strong. The X-coordinate of extreme points on both sides of Vxx, X-coordinate of extreme points of Vxz, coordinates of extreme points of Vxy,Y-coordinates of extreme points on both sides of Vyy and Y-coordinate of extreme points of Vyz are linear with the observation heights. Finally, based on the relationship between the extreme points and the depth of the submarine, the feasibility of using the extreme point coordinates to inverse the depth of the submarine is verified.
$author.xingMing_EN,$author.xingMing_EN,$author.xingMing_EN et al. The Relationship between Extreme Values of Gravity Gradients and Depth of Submarine[J]. jgg, 2020, 40(12): 1228-1232.
$author.xingMing_EN,$author.xingMing_EN,$author.xingMing_EN et al. The Relationship between Extreme Values of Gravity Gradients and Depth of Submarine[J]. jgg, 2020, 40(12): 1228-1232.