Results 61 to 70 of about 2,624 (182)

Ionospheric Data Fusion With GNSS, GNSS‐RO and Satellite Altimetry Based on Machine Learning

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.
Abstract Global Ionospheric Maps (GIMs) are essential in Global Navigation Satellite System (GNSS) applications, particularly for correcting ionospheric delays in single‐frequency positioning. GIMs are mainly derived from dual‐frequency GNSS observations, but the uneven distribution of ground stations—sparse over oceans—reduces accuracy in these ...
Marcel Iten, Shuyin Mao, Benedikt Soja
wiley   +1 more source

Rock Physics of the Critical Zone: Models, Inversion, and Interpretation

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Rock physics models link geophysical measurements with subsurface petrophysical properties, such as porosity, mineral composition, and fluid saturation. While originally developed for hydrocarbon exploration, these models are increasingly applied in the near surface for quantitative interpretation of geophysical data.
Dario Grana, Brady A. Flinchum, Denys Grombacher, Andrew D. Parsekian, Clifford S. Riebe, W. Steven Holbrook   +5 more
wiley   +1 more source

Frequency Standard Contributions to Limitations on the Signal‐to‐Noise Ratio in Very Long Baseline Interferometric Observations

Radio Science, Volume 61, Issue 6, June 2026.
Abstract Since its observation in 2019, the first image of a super‐massive black hole using Very Long Baseline Interferometry (VLBI) with an Earth‐scale baseline has generated much scientific and public interest. Work is now underway to extend the baseline into space to obtain higher image resolution.
E. A. Burt, T. A. Ely, G. C. Bower, T. J. W. Lazio, M. Anderson, S. Hernandez   +5 more
wiley   +1 more source

Linking Stress Drop and Slip Heterogeneity to Assess Source Rupture Directivity for Earthquakes in Central Italy

Terra Nova, Volume 38, Issue 3, Page 163-172, June 2026.
ABSTRACT In this study, we examine the relationship between Brune stress drop and fault slip where the stress drop is estimated using the Empirical Green's Function (EGF) method and slip distribution is derived from seismic and geodetic data inversion.
Giovanna Calderoni, Antonella Cirella, Aybige Akinci   +2 more
wiley   +1 more source

Estimation of earth’s surface moves and deformation of the territory of mine “Khotin” of Kalush-Golinskyy field by method of radar interferometry

Geodesy and Cartography, 2019
The article present processing techniques of radar data for calculating the deformations of the earth’s surface on the example of minefield, that is situated under the exogenous influence of underground workings of the “Khotin” minery Kalush-Golinskyy ...
Maksym Pakshyn, Ivan Lyaska, Kostyantyn Burak, Vitaliy Kovtun, Liubov Dorosh, Mykola Hrynishak, Volodymyr Mykhailyshyn, Tetyana Grytsyuk   +7 more
doaj   +1 more source

Dynamic Assessment of Masonry Towers Based on Terrestrial Radar Interferometer and Accelerometers

Sensors, 2019
This paper discusses the performance of a terrestrial radar interferometer for the structural monitoring of ancient masonry towers. High-speed radar interferometry is an innovative and powerful remote sensing technique for the dynamic monitoring of large
Cristina Castagnetti, Elisa Bassoli, Loris Vincenzi, Francesco Mancini   +3 more
doaj   +1 more source

Contactless analysis of heart rate variability during cold pressor test using radar interferometry and bidirectional LSTM networks. [PDF]

Sci Rep, 2021
Shi K, Steigleder T, Schellenberger S, Michler F, Malessa A, Lurz F, Rohleder N, Ostgathe C, Weigel R, Koelpin A.   +9 more
europepmc   +1 more source

Geometric, Environmental and Hardware Error Sources of a Ground-Based Interferometric Real-Aperture FMCW Radar System

Remote Sensing, 2018
Ground-based interferometric radar systems have numerous environmental monitoring applications in geoscience. Development of a relatively simple ground-based interferometric real-aperture FMCW radar (GB-InRAR) system that can be readily deployed in field
Rune Gundersen, Richard Norland, Cecilie Rolstad Denby   +2 more
doaj   +1 more source

Ground-based HF to VHF radar calibration by scattering off a stratospheric balloon [PDF]

Atmospheric Measurement Techniques
The knowledge of radar system properties is crucial for judging radar performance and correctly interpreting received raw and analysed data. The most critical part of that is the radiation pattern, which is often very difficult to measure for atmospheric/
T. Renkwitz, T. Renkwitz, M. Clahsen, R. Latteck   +3 more
doaj   +1 more source

Surface Deformation Monitoring in Coal Mine Area Based on PSI

IEEE Access, 2019
It is difficult to get robust deformation results using conventional differential interferometric synthetic aperture radar (D-InSAR) method, due to the limitation of the phase measurement error, baseline error, and atmospheric delay in synthetic aperture
Changjun Huang, Hongmei Xia, Jiyuan Hu
doaj   +1 more source