Geoid Determination Based on a Combination of Terrestrial and Airborne Gravity Data in South Korea
Yang, Hyo Jin (2013-12)
The regional gravimetric geoid model for South Korea is developed by using heterogeneous data such as gravimetric measurements, a global geopotential model, and a high resolution digital topographic model. A highly ...
Global Ice Mass Balance and its Contribution to Early Twenty-first Century Sea Level Rise
Duan, Jianbin (2014-03)
GRACE Time-Variable Gravity Field Recovery Using an Improved Energy Balance Formalism
Shang, Kun (2015-08)
Earth’s gravity is continuously varying with respect to time due primarily to mass transports within the Earth system and external gravitational forcing. A new formalism based on energy conservation principle for ...
Coseismic Deformation Detection and Quantification for Great Earthquakes Using Spaceborne Gravimetry
Wang, Lei (2012-03)
Because of Earth’s elasticity and its viscoelasticity, earthquakes induce mass redistributions in the crust and upper mantle, and consequently change Earth’s external gravitational field. Data from Gravity Recovery And ...
Terrain Corrections for Gravity Gradiometry
Huang, Ou (2012-06)
This study developed a geostatistical method to determine the required extent of terrain corrections for gravity gradients under the criterion of different applications. We present the different methods to compute the ...
Source Parameters Inversion for Recent Large Undersea Earthquakes from GRACE Data
Dai, Chunli (2015-08)
The north component of gravity and gravity gradient changes from the Gravity Recovery And Climate Experiment (GRACE) are used to study the coseismic gravity change for five earthquakes over the last decade: the 2004 ...
The Statistical Performance of the Matched Filter for Anomaly Detection Using Gravity Gradients
Jekeli, Christopher; Abt, Tin Lian (2010-05)
This document first reviews the theory of detecting a subsurface linear anomaly using the matched filter applied to observations of the gravitational gradient in the presence of a nominal gravitational background field ...
The Ohio State University Stackfiles for Satellite Radar Altimeter Data
Yi, Yuchan (2010-05)
This document describes the OSU stackfile database for satellite radar altimetry and software that is used to access and maintain the database system. The stackfile database system can be viewed as a reformatted version ...
Detection of a Local Mass Anomaly in the Shallow Subsurface by Applying a Matched Filter
Abt, Tin Lian (2011-08)
The task is to locate a mass anomaly, particularly a void, in the near subsurface based on gravity, gravity gradients, and magnetic field data. The motivation for this search rises from multiple areas of applications ...
A Comparison of Ellipsoidal and Spherical Harmonics for Gravitational Field Modeling of Non-Spherical Bodies
Hu, Xuanyu (2012-06)
Two harmonic expansions are compared on modeling the gravitational field of non-spherical attracting bodies. As a solution to the Laplace’s equation based on spherical coordinates, the spherical harmonic series (SHS) is ...