Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Ralph R. B. von Frese"'
Autor:
Chaoyang Zhang, Ralph R. B. von Frese, C. K. Shum, Timothy E. Leftwich, Hyung Rae Kim, Alexander V. Golynsky
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 21, Iss 12, Pp n/a-n/a (2020)
Abstract We investigate the impact of combining Gravity Field and Steady‐state Ocean Circulation Explorer (GOCE) satellite gravity anomaly and Bedmap2 terrain relief data to enhance Antarctic seismic Moho estimates over the satellite's coverage reg
Externí odkaz:
https://doaj.org/article/9498baf2646245a5aaf6b296dc1699cc
Autor:
Hyung Rae Kim, Ralph R. B. von Frese
Publikováno v:
Earth, Planets and Space, Vol 69, Iss 1, Pp 1-13 (2017)
Abstract The utility of frequency- and space-limited spherical harmonic Slepian basis functions for magnetic anomaly modeling over restricted spherical patches of the Earth was investigated using combined near-surface scalar and CHAMP satellite vecto
Externí odkaz:
https://doaj.org/article/65f507fe3fcd4ab98fcca2bc6e2ca111
This combination of textbook and reference manual provides a comprehensive account of gravity and magnetic methods for exploring the subsurface using surface, marine, airborne and satellite measurements. It describes key current topics and techniques
Autor:
Haeun Yu, Ralph R. B. von Frese, Kyung Jun Park, Soon-Young Choi, Mancheol Suh, Hyung Rae Kim
Publikováno v:
Geosciences Journal. 24:531-540
Moho estimates for the Yellow Sea and Bohai Basin were developed from the EGM2008 gravity, ETOPO1 topography/bathymetry, and NOAA’s sedimentary thickness databases. Spectral correlation analysis between the free-air gravity anomalies (FAGA) and the
Autor:
Ralph R. B. von Frese, Hyung Rae Kim, T. E. Leftwich, Alexander Golynsky, C. K. Shum, Chaoyang Zhang
Publikováno v:
Geochemistry, Geophysics, Geosystems. 21
Publikováno v:
Navigation. 61:125-134
Various geophysical activities generate characteristic traveling ionospheric disturbances (TIDs),which are detectible using the GPS data from the Global Navigation Satellite System (GNSS). In this paper,numerical third-order slant total electron cont
Autor:
Jihye Park, Joseph Helmboldt, Dorota A. Grejner-Brzezinska, Thomas L. Wilson, Ralph R. B. von Frese
Publikováno v:
Radio Science. 48:463-469
[1] Observations from Global Positioning System (GPS) receivers and the Very Large Array (VLA) radio telescope recorded traveling ionospheric disturbances (TID) from underground nuclear explosions (UNEs), detonated in September 1992. The slant TEC (S
Autor:
Hyung Rae Kim, Ralph R. B. von Frese
Publikováno v:
Tectonophysics. 585:26-33
A new method is introduced to find the relatively sudden temporal changes or jerks of the geomagnetic field over the polar regions. Geomagnetic jerk events during the 20th century have mostly been identified from direct measurements at mid-latitude g
Publikováno v:
Tectonophysics. 585:34-47
Conventional gravity and magnetic anomaly continuation invokes the standard Poisson boundary condition of a zero anomaly at an infinite vertical distance from the observation surface. This simple continuation is limited, however, where multiple altit
Publikováno v:
Gravity and Magnetic Exploration. :422-476
Overview Gravity and magnetic anomaly data are commonly expressed in standard formats for electronic analysis and archiving in digital data bases. A voluminous literature full of application-specialized jargon describes numerous analytical procedures