Results 11 to 20 of about 29,440 (324)
Classical and Atomic Gravimetry
Remote SensingGravity measurements have important applications in geophysics, resource exploration, geodesy, and inertial navigation. The range of classical gravimetry includes laser interferometer (LI)-based absolute gravimeters, spring relative gravimeters ...
Jie Fang +11 more
doaj +2 more sources
Gravimetry through non-linear optomechanics [PDF]
Nature Communications, 2018 We propose a new method for measurements of gravitational acceleration using a quantum optomechanical system. As a proof-of-concept, we investigate the fundamental sensitivity for a cavity optomechanical system for gravitational accelerometry with a ...
Barker, Peter F. +3 more
core +5 more sources
The NEWTON-g Gravity Imager: Toward New Paradigms for Terrain Gravimetry
Frontiers in Earth Science, 2020 Knowledge of the spatio-temporal changes in the characteristics and distribution of subsurface fluids is key to properly addressing important societal issues, including: sustainable management of energy resources (e.g., hydrocarbons and geothermal energy)
D. Carbone +24 more
doaj +2 more sources
Airborne Absolute Gravimetry With a Quantum Sensor, Comparison With Classical Technologies [PDF]
Journal of Geophysical Research: Solid Earth, 2022 We report an airborne gravity survey with an absolute gravimeter based on atom interferometry and two relative gravimeters: a classical LaCoste&Romberg (L&R) and a novel iMAR strapdown Inertial Measurement Unit.
Y. Bidel +17 more
semanticscholar +1 more source
Applications and Challenges of GRACE and GRACE Follow-On Satellite Gravimetry
Surveys in geophysics, 2022 Time-variable gravity measurements from the Gravity Recovery and Climate Experiment (GRACE) and GRACE Follow-On (GRACE-FO) missions have opened up a new avenue of opportunities for studying large-scale mass redistribution and transport in the Earth ...
Jianli Chen +6 more
semanticscholar +1 more source
Methodology of Airborne Gravimetry Surveying and Strapdown Gravimeter Data Processing
Gyroscopy and Navigation, 2023 The paper presents a methodology of preparing and conducting airborne gravimetry survey using an inertial measuring unit (IMU) or strapdown inertial navigation system as airborne gravimeter.
A. Golovan, V. Vyazmin
semanticscholar +1 more source
High-Precision Quantum-Enhanced Gravimetry with a Bose-Einstein Condensate. [PDF]
Physical Review Letters, 2020 We show that the inherently large interatomic interactions of a Bose-Einstein condensate (BEC) can enhance the sensitivity of a high precision cold-atom gravimeter beyond the shot-noise limit (SNL).
S. Szigeti +3 more
semanticscholar +1 more source
Journal of Geophysical Research: Solid Earth, 2022 The Atmosphere and Ocean De‐Aliasing Level‐1B (AOD1B) product provides a priori information about temporal variations in the Earth's gravity field induced by non‐tidal circulation processes in atmosphere and ocean. It is routinely applied as a background
L. Shihora +6 more
semanticscholar +1 more source
Earth System Science Data, 2021 . The Earth energy imbalance (EEI) at the top of the atmosphere is responsible for the accumulation of heat in the climate system. Monitoring the EEI is therefore necessary to better understand the Earth’s warming climate.
F. Marti +11 more
semanticscholar +1 more source
Hybrid Gravimetry to Map Water Storage Dynamics in a Mountain Catchment
Frontiers in Water, 2022 In mountain areas, both the ecosystem and the local population highly depend on water availability. However, water storage dynamics in mountains is challenging to assess because it is highly variable both in time and space.
Q. Chaffaut +7 more
semanticscholar +1 more source