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Research on the resilience of ecological networks from the perspective of ecological security pattern: a case study of Wuhan metropolitan area. [PDF]

Sci Rep
Zhao Y, Fang Y, Zou Y, Li G, Li B.
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Gravity Disturbance Compensation for Inertial Navigation System

IEEE Transactions on Instrumentation and Measurement, 2019
This paper investigates the gravity disturbance compensation for inertial navigation system based on high-resolution global gravity field models. The high-precision gravity is calculated using the European Improved Gravity model of the Earth by New techniques (EIGEN)-6C4, which is a representative of the high-resolution models.
Lubin Chang, Fangjun Qin, Meiping Wu
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Acoustic-gravity waves generated by surface disturbances

European Journal of Mechanics - B/Fluids, 2023
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Claudio Meza-Valle, Usama Kadri, Jaime H. Ortega   +2 more
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Ionospheric disturbances and gravity waves

Journal of Geophysical Research, 1976
The response of ionization to a gravity wave moving through the ionosphere is studied. Hydrodynamic equations are used, and local thermodynamic equilibrium is imposed for simplicity. The treatment involves a perturbation analysis, and the background medium is assumed to be time stationary, horizontally stratified, and known. It is shown that ionization
H. Eun, S. H. Gross
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Local relationships between the disturbing density, the disturbing potential and the disturbing gravity of the Earth's gravity field

Journal of Geodesy, 1999
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Fei, Z. L., Sideris, M. G.
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Upward continuation of gravity disturbance covariance functions

Journal of Geophysical Research: Solid Earth, 1978
One‐ and two‐dimensional integrals are derived for upward continuation of gravity disturbance covariance functions. Both spherical earth and flat earth formulas are presented as well as the associated Legendre and Fourier transforms.
Stanley K. Jordan, Warren G. Heller
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State-Space Models of Gravity Disturbance Gradients

IEEE Transactions on Aerospace and Electronic Systems, 1981
State-space models of gravity disturbance gradients are needed to design the Kalman filters used for gradiometer-aided inertial navigation. However, the physics of the gravity field guarantee that many of the cross-spectral densities of gravity disturbance gradients are nonrational.
Stanley Jordan, Peter Moonan, J. Weiss
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