Results 21 to 30 of about 269,909 (321)

Numerical Simulations of Magnetoacoustic-Gravity Waves in the Solar Atmosphere [PDF]

open access: yes, 2012
We investigate the excitation of magnetoacoustic-gravity waves generated from localized pulses in the gas pressure as well as in vertical component of velocity.
A. K. Srivastava   +37 more
core   +2 more sources

Analysis of Groundwater Decline and Land Subsidence by using of Microgravity and Vertical Gravity Gradient Over Time Method

open access: yesJurnal Ilmu Dasar, 2014
Studies have been conducted to identify the occurrence of subsidence, a decline of groundwater, and to model the causes of subsidence in areas of Jakarta based on response of microgravity anomaly and vertical gravity gradient over time.
Suhayat Minardi   +3 more
doaj   +1 more source

Binary structure constrained gravity inversion based on seismic first arrival travel time data

open access: yesFrontiers in Earth Science, 2023
Gravity exploration method is one of the important methods for deep mineral resource exploration, but gravity data inversion has limited resolution ability in the vertical direction.
Xinhui Deng   +2 more
doaj   +1 more source

Chemical gradients in the Milky Way from the RAVE data. II. Giant stars [PDF]

open access: yes, 2014
We provide new constraints on the chemo-dynamical models of the Milky Way by measuring the radial and vertical chemical gradients for the elements Mg, Al, Si, Ti, and Fe in the Galactic disc and the gradient variations as a function of the distance from ...
Bienaymé, O.   +22 more
core   +2 more sources

Gradients from GOCE reveal gravity changes before Pisagua Mw = 8.2 and Iquique Mw = 7.7 large megathrust earthquakes [PDF]

open access: yes, 2015
Considerable improvements in the measurement of the Earth gravity field from GOCE satellite mission have provided global gravity field models with homogeneous coverage, high precision and good spatial resolution.
Alvarez, O.   +6 more
core   +3 more sources

Gravity-wave-induced cross-isentropic mixing: a DEEPWAVE case study [PDF]

open access: yesAtmospheric Chemistry and Physics, 2023
Orographic gravity waves (i.e., mountain waves) can potentially lead to cross-isentropic fluxes of trace gases via the generation of turbulence. During the DEEPWAVE (Deep Propagating Gravity Wave Experiment) campaign in July 2014, we performed tracer ...
H.-C. Lachnitt   +10 more
doaj   +1 more source

The use of microgravity technique in archaeology: A case study from the St. Nicolas Church in Pukanec, Slovakia

open access: yesContributions to Geophysics and Geodesy, 2009
The  detection  of subsurface cavities,  such  as  crypts, cellars  and  tunnels,  in churches  and castles  belongs to successful applications of the employment of surface  gravity measurement techniques in archaeo-prospecting.
Jaroslava PÁNISOVÁ, Roman PAŠTEKA
doaj   +1 more source

Foam Drainage Control Using Thermocapillary Stress in a Two-Dimensional Microchamber [PDF]

open access: yes, 2014
International audienceWe investigate the drainage of a 2D microfoam in a vertical Hele-Shaw cell, and show that the Marangoni stress at the air-water interface generated by a constant temperature gradient applied in situ can be tuned to control the ...
Cantat, Isabelle   +3 more
core   +3 more sources

Discussion on the orthometric height realization

open access: yesGeodesy and Cartography, 2012
In the theory of the orthometric height, the mean value of gravity along the plumbline between the geoid and the earth's surface is defined as the integral mean. To determine the mean gravity from the gravity observations realized at the physical surface
Robert Tenzer
doaj   +1 more source

DETERMINATION OF THE VERTICAL GRADIENT OF GRAVITY FROM GRAVITY ANOMALIES

open access: yesInterexpo GEO-Siberia, 2021
In connection with the need to use the vertical gradient in the processing of the results of gravimetric measurements and their interpretation when solving problems of geology, geophysics, geodesy, geodynamics and navigation, in addition to the urgent problems of improvement, socalled indirect methods of measuring the vertical gradient, there is an ...
openaire   +1 more source

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