Results 51 to 60 of about 675,509 (209)

The Impacts of Tropospheric Gravity Wave‐Generated MSTIDs on Skywaves at Mid‐latitude North American Sector Observed and Modeled Using SuperDARN HF Radars

Radio Science, Volume 61, Issue 9, September 2026.
Abstract Trans‐ionospheric high frequency (HF: 3–30 MHz) response to atmospheric gravity waves (GWs) is studied in the middle‐latitude ionosphere in relation to thunderstorm activity. SuperDARN HF radar observations are compared against the model simulations to quantify the impact of GW‐generated medium‐scale traveling ionospheric disturbances (MSTID ...
S. Chakraborty, P. A. Inchin, S. Debchoudhury, B. Bergsson, M. Zettergren, J. M. Ruohoniemi   +5 more
wiley   +1 more source

V-groove measurement with white light interferometry [PDF]

, 2006
White Light Interferometry (WLI) provides a fast and convenient means to measure surface profile. With sub-nanometre resolution and non-contacting operation, WLI is also a promising means to estimate surface roughness parameters.
Gao, F., Coupland, J. M., Petzing, J.
core   +4 more sources

Obtaining Local‐Tie Vectors From Short‐Baseline Interferometry Between Legacy S/X and VGOS Telescopes at Ny‐Ålesund

Radio Science, Volume 61, Issue 9, September 2026.
Abstract With the ongoing transition for geodetic Very Long Baseline Interferometry (VLBI) from the use of legacy S/X telescopes to the VLBI Global Observing System (VGOS), it is necessary to connect the new VGOS network to the existing legacy S/X telescopes.
Rebekka Handirk, Eskil Varenius, Tobias Nilsson, Karine Le Bail, Rubén Bolaño González, Susana Garcia‐Espada, Axel Meldahl, Thomas Gasmoe, Silje Agnes Grøslie Wennesland, Oddvar Bråvold Tangen, Halfdan Pascal Kierulf   +10 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

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

The Spatiotemporal Evolution of Creep on the Southern San Andreas Fault Between 2015–2021

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract The Southern San Andreas fault (SSAF) in the Coachella Valley experiences shallow creep and slow slip events (SSE), which re‐distribute stresses in the seismogenic zone and affect the potential of future earthquakes. Although average creep rates are relatively well‐constrained, untangling the details of spatiotemporal variation in creep along ...
Ellis J. Vavra, Yuri Fialko
wiley   +1 more source

Tandem-L: Global Monitoring the Earth's Dynamics with Differential and Polarimetric SAR Interferometry [PDF]

, 2009
Tandem-L is a German mission proposal for an innovative interferometric L-band radar mission that enables the systematic monitoring of dynamic Earth processes using advanced techniques and technologies.
Moreira, Alberto
core  

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

Rapid UAV‐ and Ground‐Based Magnetic Mapping of Subsurface Fractures During a Volcano‐Tectonic Crisis in Grindavík, Iceland

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract We applied an integrated UAV‐ and ground‐based magnetometry workflow to map shallow subsurface fractures and cavities in the town of Grindavík during the 2023–2025 volcano‐tectonic crisis. Short‐wavelength linear and semi‐circular magnetic lows delineate open or partially open fractures and localized cavities, including features with no ...
E. J. Piispa, C. R. Gallagher, S. Bernholt, G. M. Einarsson, Ö. Erlendsson, K. Á. Karlsdóttir, M. Á. Sigurgeirsson, R. A. Askew, D. Ben‐Yehoshua, B. V. Óskarsson, S. R. Gunnarson, M. T. Gudmundsson, G. Björnsson   +12 more
wiley   +1 more source

New Perspectives in Landslide Displacement Detection Using Sentinel-1 Datasets

Remote Sensing, 2019
Space-borne radar interferometry is a fundamental tool to detect and measure a variety of ground surface deformations, either human induced or originated by natural processes.
Matteo Mantovani, Giulia Bossi, Gianluca Marcato, Luca Schenato, Giacomo Tedesco, Giacomo Titti, Alessandro Pasuto   +6 more
doaj   +1 more source