• Proceedings of the KSRS Conference
• /
• v.1
• /
• pp.157-157
• /
• 2006

• Smart Structures and Systems
• /
• v.16 no.2
• /
• pp.347-366
• /
• 2015

GPS and strong-motion sensors are broadly used for the monitoring of structural health and Earth surface motions, focusing on response of structures, earthquake characterization and rupture modeling. Several studies have shown the consistency of the two data sets within at certain frequency (e.g., 0.03

• 한국지형공간정보학회:학술대회논문집
• /
• 2005.08a
• /
• pp.93-99
• /
• 2005

This paper summarizes a preliminary geoid computation for western Mongolia, utilizing the airborne data collected fall 2004, as part of the NGA-DNSC-ALAGaC-MonMap cooperative airborne gravity project. A gravimetric geoid has been computed using the airborne gravity data, SRTM terrain models and GRACE/EGM global fields. The gravimetric geoid has subsequently been fitted to GPS-leveling data across Western Mongolia, as well as for a special Ulaanbaatar city geoid model.

• Economic and Environmental Geology
• /
• v.39 no.4 s.179
• /
• pp.353-368
• /
• 2006

The modem kinematic behaviors of the rigid block motions are well developed using synthetic analyses of paleomagnetic, petrologic, paleontologic and geophysical data which have been established in the last a quater of a century. Phanerozoic geodynamic evolution and tectonic episodes of the Korean Peninsula and East Asia region are discussed and summarized here.

• Journal of the Korean Geophysical Society
• /
• v.3 no.4
• /
• pp.281-290
• /
• 2000

This research was carried out in order to give some reasonable solutions on basin tectonics and on continental geodynamics, which are approached by using integrative researches on crustal deformation, 3-D seismic velocity reconstruction and geochemical tracing of volcanic rocks in the eastern China basin system.

• Proceedings of the KSRS Conference
• /
• v.1
• /
• pp.158-158
• /
• 2006

• 한국지구물리탐사학회:학술대회논문집
• /
• 2011.10a
• /
• pp.145-146
• /
• 2011

• 한국지구물리탐사학회:학술대회논문집
• /
• 2010.10a
• /
• pp.35-38
• /
• 2010

• Proceedings of the Korean Powder Metallurgy Institute Conference
• /
• 2006.09b
• /
• pp.1309-1310
• /
• 2006

High-purity and super-hard nano-polycrystalline diamond has been successfully synthesized by direct conversion from high-purity graphite under static pressures above 15 GPa and temperatures above $2300^{\circ}C$. This paper describes research findings on the formation mechanism of nano-structure and on the contributing factor leading to high hardness.

• Korean Journal of Remote Sensing
• /
• v.21 no.1
• /
• pp.91-98
• /
• 2005

On board satellite magnetometer measures all possible magnetic components, such as the core and crustal components from the inner Earth, and magnetospheric, ionospheric and' its coupled components from the outer Earth. Due to its dipole and non-dipole features, separation of the respective component from the measurements is most difficult unless the comprehensive knowledge of each field characteristics and the consequent modeling methods are solidly constructed. Especially, regional long wavelength magnetic signals of the crust are strongly masked by the main field and dynamic external field and hence difficult to isolate in the satellite measurements. In particular, the un-modeled effects of the strong auroral external fields and the complicated behavior of the core field near the geomagnetic poles conspire to greatly reduce the crustal magnetic signal-to-noise ratio in the polar region relative to the rest of the Earth. We can, however, use spectral correlation theory to filter the static lithospheric and core field components from the dynamic external field effects that are closely related to the geomagnetic storms affecting ionospheric current disturbances. To help isolate regional lithospheric anomalies from core field components, the correlations between CHAMP magnetic anomalies and the pseudo-magnetic effects inferred from satellite gravity-derived crustal thickness variations can also be exploited, Isolation of long wavelengths resulted from the respective source is the key to understand and improve the models of the external magnetic components as well as of the lower crustal structures. We expect to model the external field variations that might also be affected by a sudden upheaval like tsunami by using our algorithm after isolating any internal field components.