Creation of Maps of Earth’s Gravitational Field Parameters Using Data from Joint Measurements of Astrometer and Gravimeter

The article is devoted to the creation of maps of the Earth’sgravitational field parameters using the measurement data of a gravimetric complex, including an astrometer of the plumb line deviation and a high-precision relative gravimeter. Conducting joint area measurements using the complex allows determining the following Earth’sgravitational field parameters: acceleration of gravity and gravity anomalies, components and the total value of the plumb line deviation, components of acceleration of gravity and gravitational gradients (second derivatives of the anomalous potential). The total measurement time at a single point using the complex does not exceed 1 hour, the standard deviation of the measurement series of the plumb line deviation components is from 0.1″ to 0.3″, the acceleration of gravity is 10 μGal. The paper presents examples of maps of the above-mentioned Earth’sgravitational field parameters, created based on the measurement results using the gravimetric complex in the Moscow region, including the measurement profile across the gravitational-anomalous Moscow attraction.

Earth’s gravitational field, gravity maps, astrometer, deviation of plumb line