Results 41 to 50 of about 144 (135)

Improved Tropical Cyclone Wind Estimation Using Dual‐Polarization C‐Band SAR and Machine Learning

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract Tropical cyclones (TCs) characterized by extreme wind speeds present severe hazards to human life and infrastructure. Spaceborne synthetic aperture radar (SAR) has emerged as a critical observational tool for TCs, owing to its all‐weather, high‐resolution imaging capabilities.
Chaogang Guo, Weihua Ai, Xianbin Zhao, Zhancai Liu, Hongwei Yang, Jiajia Tang   +5 more
wiley   +1 more source

Estimating Ocean Vector Winds and Currents Using a Ka-Band Pencil-Beam Doppler Scatterometer

Remote Sensing, 2018
Ocean surface currents and winds are tightly coupled essential climate variables, and, given their short time scales, observing them at the same time and resolution is of great interest.
Ernesto Rodríguez, Alexander Wineteer, Dragana Perkovic-Martin, Tamás Gál, Bryan W. Stiles, Noppasin Niamsuwan, Raquel Rodriguez Monje   +6 more
doaj   +1 more source

Derivation of New Orthonormal Basis Functions for Magnetic Detection of Submarine Telecommunications Cables

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This paper presents the first orthonormal basis function (OBF) framework adapted for passive magnetic detection of DC current‐carrying submarine telecommunications cables, extending Anderson's dipole‐based approach to cable‐like source configurations. Two orthonormal basis functions are derived from the Biot‐Savart law and integrated into a generalised
Khaled Hleis, Isabelle Quidu, Michel Legris, Alain Bertholom   +3 more
wiley   +1 more source

Inundation Processes, Barrier Island Breaching, and Structure Impacts During Hurricane Michael (2018)

Earth and Space Science, Volume 12, Issue 11, November 2025.
Abstract We demonstrate the increased ability to forecast hurricane impacts with a coupled numerical modeling system by simulating ocean waves, water levels, currents, sediment transport, and structural damage to predict inundation, coastal morphological change, and residential building impacts.
John C. Warner, Christopher R. Sherwood, Mark Carson, Emma Manzella, Maitane Olabarrieta, Arthriya Subgranon, Steven Klepac, Joseph B. Zambon, Ruoying He, Z. George Xue, Muhamad Farid Geonova, Elias Hunter, Jonathan Moskaitis, James D. Doyle, Christopher J. Amante, Nicholas M. Enwright   +15 more
wiley   +1 more source

Submesoscale Air‐Sea Interactions as Revealed by SWOT

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract At midlatitudes, air‐sea interactions have been documented in numerical models, in situ campaigns and satellite observations down to the ocean mesoscales. However little is known about scales of a few kilometers (the submesoscales). The new satellite mission Surface Water and Ocean Topography (SWOT) provides a global coverage of these scales ...
M. Kaouah, G. Lapeyre, L. Renault, X. Perrot, C. Dablemont   +4 more
wiley   +1 more source

Influence of catchment lithology on debris‐flow fan morphology, sedimentology and evolution—Field evidence from the White Mountains, southern California, USA

Earth Surface Processes and Landforms, Volume 50, Issue 13, October 2025.
Morphology of the (a) Sacramento Canyon fan (with a catchment dominated by batholitic bedrock) and (b) Gunter Creek fan (with a catchment dominated by sedimentary bedrock) at the foot of the White Mountains, California, highlighting the differences between fans fed by contrasting lithologies.
Tjalling de Haas, Dario Ventra, Alexander L. Densmore, Steven A. Binnie   +3 more
wiley   +1 more source

Volcano‐Tectonic Crisis of Mayotte (2018–2022): A Deformation Model for Geodetic Applications

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.
Abstract Volcano‐tectonic unrest during the 2018–2022 crisis of Mayotte (Comoros archipelago) generated an island‐wide surface displacement reaching ∼ ${\sim} $20 cm, with a relative (internal) deformation of the island of ∼ ${\sim} $10 cm. Correcting for these displacements, which exceed the required accuracy of geodetic network reference coordinates,
Raphaël Grandin, Xavier Collilieux, Inès Pasquier, Olivier Jamet   +3 more
wiley   +1 more source

Retrieving hurricane wind speeds using cross-polarization C-band measurements [PDF]

Atmospheric Measurement Techniques, 2014
Hurricane-force wind speeds can have a large societal impact and in this paper microwave C-band cross-polarized (VH) signals are investigated to assess if they can be used to derive extreme wind-speed conditions.
G.-J. van Zadelhoff, A. Stoffelen, P. W. Vachon, J. Wolfe, J. Horstmann, M. Belmonte Rivas   +5 more
doaj   +1 more source

Observing Interactions Between Waves, Winds, and Currents From SWOT

Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.
Abstract The Surface Water and Ocean Topography (SWOT) satellite mission enables, for the first time, two‐dimensional (2D) mapping of significant wave height Hs $\left({H}_{s}\right)$ at kilometer‐scale resolution. Using data from SWOT's Ka‐band Radar Interferometer (KaRIn), this study investigates interactions between surface waves, winds, and ...
A. B. Villas Bôas, Gwendal Marechal, Alejandro Bohé   +2 more
wiley   +1 more source

Geodetic Evidence of Shallow Slow‐Slip Phenomena Beneath the Southern Ryukyu Forearc

Geophysical Research Letters, Volume 52, Issue 13, 16 July 2025.
Abstract While slow slip events (SSEs) are recognized as a ubiquitous phenomenon in subduction zones, accurately tracking the spatiotemporal distribution of shallow SSEs remains challenging. Here, we investigate the potential occurrence of shallow SSEs in the southern Ryukyu forearc at the western boundary of the Philippine Sea plate using 25 years of ...
Chi‐Hsien Tang, Ya‐Ju Hsu, Yutaro Okada, Yusaku Ohta, Takeshi Sagiya, Pei‐Ru Jian, Yoshiaki Tamura, Takaaki Jike   +7 more
wiley   +1 more source