نتایج جستجو برای: gravity data

تعداد نتایج: 2464280  

Journal: :Nonlinear Processes in Geophysics 2013

Journal: :Earth, Planets and Space 2022

Abstract In this study, China’s first altimeter satellite Haiyang-2A (HY-2A) data combined observations from CryoSat-2, SARAL/AltiKa, and Jason-1&2 are used to calculate the global (60°S–60°N) marine deflections of vertical gravity anomalies named Global Marine Gravity Anomaly Version 1(GMGA1), with grid resolution 1? × 1?. The each derived gradients geoid height through least squares metho...

2015
Jinyun Guo Hongjuan Yu Yi Shen Wang Li Bin Guo

Coal mining subsidence seriously affects the mine natural and ecological environment. Leveling is the traditional method to monitor the coal mining subsidence. It is possible to monitor the subsidence by gravimetry instead of leveling based on the negative linear correlation between the gravity change and the height change. Equations are derived to monitor the subsidence by gravimetry in the pa...

2014
Frank G Lemoine Sander Goossens Terence J Sabaka Joseph B Nicholas Erwan Mazarico David D Rowlands Bryant D Loomis Douglas S Chinn Gregory A Neumann David E Smith Maria T Zuber

We have derived a gravity field solution in spherical harmonics to degree and order 900, GRGM900C, from the tracking data of the Gravity Recovery and Interior Laboratory (GRAIL) Primary (1 March to 29 May 2012) and Extended Missions (30 August to 14 December 2012). A power law constraint of 3.6 ×10-4/ℓ2 was applied only for degree ℓ greater than 600. The model produces global correlations of gr...

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