Array type land time-varying gravity and gradient field observation method and system

An array type, gravity measurement technology, applied in the measurement of gravitational field, geophysical measurement, measurement device, etc., can solve the problem of vertical gravity gradient not working, affecting the validity of measurement data, affecting data accuracy and reliability, etc.
CN113189660AActive Publication Date: 2021-07-30INST OF GEOPHYSICS CHINA EARTHQUAKE ADMINISTRATION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF GEOPHYSICS CHINA EARTHQUAKE ADMINISTRATION
Publication Date
2021-07-30

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Abstract

The invention relates to an array type land time-varying gravity and gradient field observation method and system. The method comprises the steps: setting a specific observation pillar array and a reference point, and obtaining a gravity point value, a gravity horizontal gradient and a gravity vertical gradient of each measurement point in combination with an absolute gravity measurement step, a positioning step, a relative gravity measurement step and a data processing step. According to the invention, a high-precision gravity field signal is obtained through a more efficient field comprehensive measurement mode, and a field source gravity signal of a specific spatial-temporal scale is identified more accurately.
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Description

technical field

[0001] The invention relates to the technical field of flow gravity observation, in particular to an observation method and system for arrayed land time-varying gravity and gradient fields. Background technique

[0002] Gravity field is a basic geophysical field, its static anomaly characteristics and dynamic time variation can provide important physical field information for studying the structure and properties of deep crust. Modern scientific research believes that geodynamic processes such as earthquakes, groundwater, volcanic activities, various tectonic movements, and vertical crustal deformation will all cause changes in the earth's gravity field to a certain extent. The sensitivity of the gravitational field to mass motion or change signals makes it suitable for quantitatively studying the spatiotemporal properties of various Earth system processes and is an important data indicator.

[0003] In order to determine gravity values ​​and continuously mo...

Claims

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