Results 11 to 20 of about 143,454 (291)
Analysis of Gravity Disturbance Compensation for Initial Alignment of INS
IEEE Access, 2020 To address the accuracy requirements of initial alignment of high-precision inertial navigation systems (INSs), gravity disturbance compensation for INSs based on a spherical harmonic model is investigated herein.
Shiwen Hao +4 more
doaj +3 more sources
JGEET: Journal of Geoscience, Engineering, Environment and Technology, 2022 GOCE gravity satellite data can be used for regional fault detection because the observation area is wide and not limited by area. In this study, GOCE satellite data is used to detect geological structures on the island of Sumatra, the results of which ...
Al Shida Natul, Leni Sophia Heliani
doaj +1 more source
Gravity disturbance driven ocean circulation [PDF]
, 2022 Abstract. The Earth true gravity (g) has been simplified in oceanography and meteorology into the standard gravity gs (= -g0k, g0 = 9.81 m s-2) with k the unit vector perpendicular to the spherical surface or the normal gn [= -g(φ)K] with K the unit vector perpendicular to the ellipsoidal surface. The gravity disturbance (δg = g – gn) due to nonuniform
openaire +2 more sources
Three-dimensional statistical gravity disturbance model [PDF]
Geophysical Journal International, 1977 Summary The study proposes a three-dimensional gravity disturbance model to consider hitherto the unaccounted effect of the altitude. For this, secondorder statistics for the gravity disturbance vector and its components have been derived using Poisson's integral.
Negi, Janardan G., Dimri, Vijay P.
openaire +2 more sources
Sustinere: Journal of Environment and Sustainability, 2020 Nowadays, satellite technology has developed significantly. Geodesy satellites such as Grace and Grace-FO can be used for subsurface mapping. The mapping is in the form of detection of the plate details, faults, and regional geodynamic conditions.
Atriyon Julzarika +2 more
doaj +1 more source
Physical Mechanism of the Development and Extinction of the China Southwest Vortex
Atmosphere, 2023 In this paper, a typical vortex system based on quasi-linear thermal-dynamic equations to reflect the development and extinction of the China Southwest Vortex is established using the vortex motion stability method combined with the outer environmental ...
Wenlin Zhou +3 more
doaj +1 more source
Vertical Deflections and Gravity Disturbances Derived from HY-2A Data
Remote Sensing, 2020 The first Chinese altimetry satellite, Haiyang-2A (HY-2A), which was launched in 2011, has provided a large amount of sea surface heights which can be used to derive marine gravity field.
Xiaoyun Wan +3 more
doaj +1 more source
Time dependent hydraulic falls and trapped waves over submerged obstructions [PDF]
, 2014 We consider the classical problem of a free surface flowing past one or more disturbances in a channel. The fluid is assumed to be inviscid and incompressible, and the flow, irrotational.
Page, Charlotte, Parau, Emilian
core +1 more source
Capillary-gravity wave resistance in ordinary and magnetic fluids [PDF]
, 1999 Wave resistance is the drag force associated to the emission of waves by a moving disturbance at a fluid free surface. In the case of capillary-gravity waves it undergoes a transition from zero to a finite value as the speed of the disturbance is ...
Fox R. W. +8 more
core +2 more sources
A Novel Gravity Compensation Method for High Precision Free-INS Based on “Extreme Learning Machine”
Sensors, 2016 In recent years, with the emergency of high precision inertial sensors (accelerometers and gyros), gravity compensation has become a major source influencing the navigation accuracy in inertial navigation systems (INS), especially for high-precision INS.
Xiao Zhou +3 more
doaj +1 more source