Results 91 to 100 of about 33,024 (227)

Autocorrelation Seismic Imaging of Northern Taiwan Using Ambient Noise Data

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Over the past few million years, northern Taiwan records a tectonic history of subduction to arc–continent collision followed by post‐collisional collapse. This evolution motivates constraints on crustal structure, including crustal layering and thickness.
Mei Chien, Alan Levander, Po‐Fei Chen
wiley   +1 more source

Very long baseline interferometry using a radio telescope in Earth orbit [PDF]

Successful Very Long Baseline Interferometry (VLBI) observations at 2.3 GHz were made using an antenna aboard an Earth-orbiting spacecraft as one of the receiving telescopes.
Edwards, C. D., Linfield, R. P., Ulvestad, J. S.   +2 more
core   +1 more source

Observations of Coherence Changes in C‐Band SAR Linked to Snow Thermodynamics and Wind Redistribution on First‐Year Sea Ice

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract We present novel observations of C‐band Synthetic Aperture Radar (SAR) coherence sensitivities and patterns for snow on first‐year sea ice (FYI) consistent with snow thermodynamics and wind redistribution. Wintertime SAR coherence and backscatter change observations of landfast FYI in Dease Strait, Nunavut, Canada are made using 12‐day repeat ...
John Yackel, Torsten Geldsetzer, Kiran Yendamuri, Vishnu Nandan, Rasmus Tonboe, Julienne Stroeve, Monojit Saha, Robbie Mallett, Hoi Ming Lam   +8 more
wiley   +1 more source

Solar VLBI [PDF]

In April, 1981, radio telescopes at Dwingeloo (The Netherlands) and Onsala (Sweden) were used as a long-baseline interferometer at a wavelength of 18 cm. The baseline of 619 km gave a spatial resolution on the Sun of about 45 km.
Kuijpers, J., Tapping, K. F.
core   +1 more source

Probing the close environment of young stellar objects with interferometry

, 2003
The study of Young Stellar Objects (YSOs) is one of the most exciting topics that can be undertaken by long baseline optical interferometry. The magnitudes of these objects are at the edge of capabilities of current optical interferometers, limiting the ...
A Natta, B Reipurth, C Bertout, CJ Burrows, CP Dullemond, D Lynden-Bell, D Ward-Thompson, EI Chiang, F Malbet, F Malbet, F Malbet, FC Adams, GH Herbig, J-L Monin, JD Monnier, JP Berger, KR Stapelfeldt, L Hartmann, LA Hillenbrand, N Calvet, NI Shakura, P André, PG Tuthill, PG Tuthill, PJV Garcia, R Lachaume, R Millan-Gabet, R Millan-Gabet, R.L. Akeson, RL Akeson, RP Nelson, S Wolf, SJ Kenyon, SVW Beckwith, T Boehm, V Mendoza, V Mendoza   +36 more
core   +2 more sources

Improved geodetic European very-long-baseline interferometry solution using models of antenna gravitational deformation

Annals of Geophysics, 2010
Very-long-baseline interferometry (VLBI) is used for establishing global geodetic networks where the coordinates attain a 1-mm level of precision. Technique-dependent bias can degrade the VLBI positioning accuracy if it is present and unaccounted for ...
Claudio Abbondanza, Pierguido Sarti, Monia Negusini   +2 more
doaj   +1 more source

Applications to Earth physics: Very-long-baseline interferometry and data analysis [PDF]

A range of very long baseline interferometry experiments applied to Earth physics are ...
Counselman, C. C., III, Shapiro, I. I.
core   +1 more source

Time-lapse Very Long Baseline Interferometry Imaging of the Close Active Binary HR 1099

The Astrophysical Journal
We report multiepoch astrometric very long baseline interferometry observations of the chromospherically active binary HR 1099 (V711 Tau, HD 22468) at six epochs over 63 days using the Very Long Baseline Array at 22.2 GHz.
Walter W. Golay, Robert L. Mutel, Evan E. Abbuhl   +2 more
doaj   +1 more source

Experience from geodetic very long baseline interferometry observations at Onsala using a digital backend

Journal of Geodetic Science, 2015
The Onsala Space Observatory has installed a modern digital backend for geodetic and astronomical Very Long Baseline Interferometry (VLBI). This system consists of a Digital Base-Band Converter (DBBC) and a Mark 5B+ recorder.
Kareinen N., Haas R.
doaj   +1 more source

Astronomy using basic Mark 2 very long baseline interferometry [PDF]

Two experiments were performed in April and September 1976 to determine precise positions of radio sources using conventional Mark 2 VLBI techniques. Four stations in the continental United States observed at a wavelength of 18 cm.
Backer, D. C., Johnston, K. J., Spencer, J. H., Waltman, W. B.   +3 more
core   +1 more source