Results 91 to 100 of about 83,251 (291)

Geodetic Insights to the Himalayan Megathrust Kinematics Unravel Increased Earthquake Hazard

open access: yesGeophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract Measurements of both horizontal and vertical surface displacements allow for rigorous estimation of the moment deficit and the fault locking along subduction zones, including continental megathrusts. Previous measurements in the Himalayas were restricted to horizontal velocities from Global Navigational Satellite Systems, so the locking and ...
K. M. Sreejith   +5 more
wiley   +1 more source

Using Polynomial Wigner-Ville Distribution for Velocity Estimation in Remote Toll Applications [PDF]

open access: yes, 2014
International audienceThis letter presents the use of polynomial Wigner- Ville distribution (PWVD) for accurate velocity estimation as used in remote road traffic management applications.
Meric, Stéphane, Pancot, Rébecca
core   +2 more sources

Image fusion techniqes for remote sensing applications [PDF]

open access: yes, 2002
Image fusion refers to the acquisition, processing and synergistic combination of information provided by various sensors or by the same sensor in many measuring contexts.
Bruzzone, Lorenzo   +4 more
core   +1 more source

Performance of Hydraulic Models Compared to Geomorphological and Botanical Approaches to Delineate the Ordinary High Water Mark for Small Rivers

open access: yesEcohydrology, Volume 18, Issue 7, October‐November 2025.
ABSTRACT The ordinary high water mark (OHWM) delineates the water environment from the land environment. The preferred method for the OHWM delineation in Québec, Canada, is a method based solely on bank vegetation characteristics, positioning the botanical OHWM (BOHWM) at the transition from hydrophytic to terrestrial vegetation.
Freddy Houndekindo   +6 more
wiley   +1 more source

High Resolution Full-Aperture ISAR Processing through Modified Doppler History Based Motion Compensation

open access: yesSensors, 2017
A high resolution inverse synthetic aperture radar (ISAR) technique is presented using modified Doppler history based motion compensation. To this purpose, a novel wideband ISAR system is developed that accommodates parametric processing over extended ...
Jung-Hwan Song   +3 more
doaj   +1 more source

Monitoring of a multi‐span prestressed concrete bridge using satellite interferometric data and comparison with on‐site sensor results

open access: yesStructural Concrete, Volume 26, Issue 5, Page 5430-5453, October 2025.
Abstract Satellite‐based Synthetic Aperture Radar Interferometry (InSAR) represents a promising supplement to traditional Structural Health Monitoring (SHM) methods, offering a non‐invasive solution that eliminates the need for sensor installations and provides extensive spatial coverage.
Pier Francesco Giordano   +7 more
wiley   +1 more source

Sparse representation-based SAR imaging [PDF]

open access: yes, 2009
There is increasing interest in using synthetic aperture radar (SAR) images in automated target recognition and decision-making tasks. The success of such tasks depends on how well the reconstructed SAR images exhibit certain features of the underlying ...
Cetin, Mujdat   +3 more
core   +1 more source

Regional Ice‐Depth and Thickness in Phlegra Montes, Mars From Radar Characterization of Glacial Landsystems Using SHARAD

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.
Abstract Morphological analyses of Viscous Flow Features (VFFs) in the mid‐latitude regions of Mars have led to the hypothesis that these landforms are equivalent to debris‐covered glaciers. Phlegra Montes is a 1400‐km‐long mountain range in the northern mid‐latitudes that spans from 30° to 50°N, where there is an abundance of glacial landsystems ...
Chimira N. Andres, Isaac B. Smith
wiley   +1 more source

GLRT‐based detection of targets composed of distributed scattering centres

open access: yesIET Radar, Sonar & Navigation
Attributed scattering problems have been found to be helpful in inverse synthetic aperture radar (ISAR) imaging and target recognition problems. In this model, the scattering centres are divided into two categories: localised and distributed.
Amir Mohammad Hatami   +2 more
doaj   +1 more source

Calving Mechanisms Inferred From Observations of Surface Depressions at Helheim Glacier, Greenland

open access: yesJournal of Geophysical Research: Earth Surface, Volume 130, Issue 10, October 2025.
Abstract Dynamical changes at the termini of tidewater glaciers may trigger sustained acceleration, thinning, and retreat, increasing a glacier's contribution to sea level rise. However, processes at the ice‐ocean interface occur across a range of spatial (cm to km) and temporal (minutes to years) scales, making these processes difficult to capture ...
Michael G. Shahin   +7 more
wiley   +1 more source

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