Results 71 to 80 of about 499,351 (240)

The Buckland Park MF radar: routine observation scheme and velocity comparisons [PDF]

Annales Geophysicae, 2004
This paper describes the routine observations scheme implemented for the Buckland Park medium frequency (BPMF) radar. These observations are rare among current MF/HF radar observations in that they are made using a relatively narrow transmit polar ...
D. A. Holdsworth, D. A. Holdsworth, I. M. Reid   +2 more
doaj   +1 more source

River Run Off Measurement With SAR Along Track Interferometry [PDF]

, 2004
The paper summarizes the need for global space borne river run-off measurements. It reports about an airborne SAR experiment aimed to measure the surface velocity of the river Isar in Bavaria / Germany.
Eineder, Michael, Horn, Ralf, Maurer, Thomas, Runge, Hartmut, Suchandt, Steffen   +4 more
core  

Interferometry meets the third and fourth dimensions in galaxies

, 2014
Radio astronomy began with one array (Jansky's) and one paraboloid of revolution (Reber's) as collecting areas and has now reached the point where a large number of facilities are arrays of paraboloids, each of which would have looked enormous to Reber ...
Trimble, Virginia
core   +1 more source

Supershear Transitions and Bilateral Asymmetric Rupture of the 2025 Sagaing (Myanmar) Earthquake Revealed by Geodetic and Seismic Observations

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract The Sagaing Fault (SF) accommodates major plate motion in Myanmar, yet large earthquakes along it have rarely been captured by modern geodetic and seismic observations. The 2025 Sagaing earthquake generated an exceptionally long rupture (∼535 km), offering a rare opportunity to investigate rupture dynamics along continental transform fault. We
Zhenjiang Liu, Jyr‐Ching Hu, Zhenhong Li, Chuang Song, Yi Chen, Chen Yu, Jiatong Wang, Xuesong Zhang, Jianbing Peng   +8 more
wiley   +1 more source

Interferometry of ionospheric E-region irregularities based on Kunming VHF radars

Frontiers in Astronomy and Space Sciences
There is a long history of using VHF radar systems to detect ionospheric irregularities based on the theory of coherent scattering. According to previous work, there is a high occurrence of field-aligned irregularities (FAIs) in the ionospheric E-region ...
Bo Chen, Yihao Xu, Chen Zhou, Yuqiang Zhang, Yi Liu, Tong Xu, Bin Xu, Jian Feng, Ting Lan, Haiyin Qing, Zhongxin Deng, Xiang Wang, Xiang Wang, Xinmiao Zhang   +13 more
doaj   +1 more source

System Concepts for Bi- and Multi-Static SAR Missions [PDF]

, 2003
The performance and capabilities of bi- and multistatic spaceborne synthetic aperture radar (SAR) are analyzed. Such systems can be optimized for a broad range of applications like frequent monitoring, wide swath imaging, single-pass cross-track ...
Fiedler, Hauke, Hounam, David, Krieger, Gerhard, Moreira, Alberto, Rodriguez Cassola, Marc   +4 more
core  

First insights on the potential of Sentinel-1 for landslides detection [PDF]

, 2016
This paper illustrates the potential of Sentinel-1 for landslide detection, Accepted 23 March 2016 mapping and characterization with the aim of updating inventory maps and monitoring landslide activity.
Barra, Anna, Crosetto, Michele, Esposito, Carlo, Mazzanti, Paolo, Monserrat, Oriol, SCARASCIA MUGNOZZA, Gabriele   +5 more
core   +2 more sources

Characterization of Crustal Deformation During the May 2021 Nyiragongo Eruption Using InSAR and GNSS Data

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract We analyze Interferometric Synthetic Aperture Radar (InSAR) and Global Navigation Satellite System (GNSS) data to characterize ground deformation and dike opening associated with the May 2021 Nyiragongo eruption. Despite documented eruptions in 1977 and 2002, Nyiragongo's magmatic system and its interaction with regional rifting remain poorly ...
D. Murekezi, A. Newman, C. Wauthier, C. J. Ebinger, P. Lundgren, J. Gonzalez Santana, T. Niyitegeka, G. Nyandwi, T. Habiyakare, J. Uwiduhaye   +9 more
wiley   +1 more source

Monitoring of displacements and deformations of the earth’s surface near the Stebnyk city using radar images of Sentinel-1

Geodesy and Cartography, 2020
This article applies radar interferometry technologies implemented in the ENVISARscape and SNAP software environment provided by the processing of data from theSentinel-1 satellite.
Ihor Trevoho, Borys Chetverikov, Lubov Babiy, Mariia Malanchuk   +3 more
doaj   +1 more source

Synthetic Aperture Radar Interferometry Based on Vortex Electromagnetic Waves

IEEE Access, 2019
The vortex electromagnetic (EM) wave carrying orbital angular momentum (OAM) offers a new degree of freedom for synthetic aperture radar (SAR) imaging. Because vortex EM waves have helical wavefronts, the vortex EM wave-based SAR echo contains the three ...
X. Bu, Zhuo Zhang, Longyong Chen, Ke-Hong Zhu, Siyan Zhou, Jianping Luo, Ruichang Cheng, Xing-dong Liang   +7 more
semanticscholar   +1 more source