Results 71 to 80 of about 195,296 (230)

Shear Strain Evolution Spanning the 2020 Mw6.8 Elazığ and 2023 Mw7.8/Mw7.6 Kahramanmaraş Earthquake Sequence Along the East Anatolian Fault Zone

open access: yesGeophysical Research Letters, Volume 52, Issue 6, 28 March 2025.
Abstract Shallow creep along strike‐slip faults is essential in releasing strain during earthquake cycles. However, its origin—whether inherent or triggered by earthquakes—remains debated. Using Interferometric Synthetic Aperture Radar phase‐gradient data, we map shear‐strain rates along the East Anatolian Fault Zone (EAFZ) before and after the 2020 ...
Ziming Liu   +3 more
wiley   +1 more source

Pipelined digital SAR azimuth correlator using hybrid FFT-transversal filter [PDF]

open access: yes, 1984
A synthetic aperture radar system (SAR) having a range correlator is provided with a hybrid azimuth correlator which utilizes a block-pipe-lined fast Fourier transform (FFT).
Liu, K. Y., Wu, C.
core   +1 more source

Experimental Synthetic Aperture Radar with Dynamic Metasurfaces

open access: yes, 2017
We investigate the use of a dynamic metasurface as the transmitting antenna for a synthetic aperture radar (SAR) imaging system. The dynamic metasurface consists of a one-dimensional microstrip waveguide with complementary electric resonator (cELC ...
Boyarsky, Michael   +6 more
core   +2 more sources

Nests, Threats, and Leks: Nonrandom Distributions of Nests in Ruffs (Calidris pugnax)

open access: yesEcology and Evolution, Volume 15, Issue 3, March 2025.
This project investigates the nest distribution of the ruff (Calidris pugnax), an endangered shorebird. Using satellite imaging, we established a suitable breeding area and analyzed the factors influencing nest placement. Our study aims to provide insights that can aid the conservation of this species by understanding nesting behavior and outlining the
Hanna Algora   +7 more
wiley   +1 more source

Mathematics of Synthetic Aperture Radar Imaging [PDF]

open access: yes, 2011
In Synthetic Aperture Radar (SAR) imaging, radar antennas are mounted on an airborne platform. The scene to be imaged is illuminated by electromagnetic waves transmitted from an antenna.
Garza, Guillermo
core   +1 more source

Eddy‐Driven Cross‐Shelf Exchange and Variability in the East Auckland Current

open access: yesJournal of Geophysical Research: Oceans, Volume 130, Issue 3, March 2025.
Abstract Using an ocean reanalysis and freely evolving numerical simulation, eddy‐driven cross‐shelf exchange in the East Auckland Current (EAuC) system was investigated. The EAuC is stronger in the reanalysis than the free run and has a more evident impact on cross‐shelf exchange.
Rafael Santana   +4 more
wiley   +1 more source

Decoding the Spatiotemporal Complexities of the Permafrost Carbon Feedback With Multimodal Ensemble Learning

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 1, March 2025.
Abstract Complex nonlinear relationships exist between the permafrost thermal state, active layer thickness, and terrestrial carbon cycle dynamics. In Arctic and boreal Alaska, significant uncertainties characterize the spatiotemporal rate and magnitude of permafrost degradation and the permafrost carbon feedback, with increasing recognition of the ...
B. A. Gay   +5 more
wiley   +1 more source

Quantification of the Flood Discharge Following the 2023 Kakhovka Dam Breach Using Satellite Remote Sensing

open access: yesWater Resources Research, Volume 61, Issue 3, March 2025.
Abstract Fourteen months post the Ukrainian‐Russian war outbreak, the Kakhovka Dam collapsed, leading to weeks of catastrophic flooding. Yet, scant details exist regarding the reservoir draining process. By using a new technique for processing gravimetric satellite orbital observations, this study succeeded in recovering continuous changes in reservoir
Shuang Yi   +7 more
wiley   +1 more source

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