Results 121 to 130 of about 46,278 (262)

Frequency Standard Contributions to Limitations on the Signal‐to‐Noise Ratio in Very Long Baseline Interferometric Observations

Radio Science, Volume 61, Issue 6, June 2026.
Abstract Since its observation in 2019, the first image of a super‐massive black hole using Very Long Baseline Interferometry (VLBI) with an Earth‐scale baseline has generated much scientific and public interest. Work is now underway to extend the baseline into space to obtain higher image resolution.
E. A. Burt, T. A. Ely, G. C. Bower, T. J. W. Lazio, M. Anderson, S. Hernandez   +5 more
wiley   +1 more source

Remotely Sensed Surface Water Storage Shows Distinct Patterns From SWAT‐Simulated Data

Water Resources Research, Volume 62, Issue 6, June 2026.
Abstract Quantifying and projecting the downstream benefits of water stored in lakes and wetlands (SWstorage) requires watershed hydrologic models, which often parameterize surface water storage in topographic depressions using static digital elevation model (DEM) data.
W. Dolan, M. K. Vanderhoof, J. R. Christensen, H. E. Golden, C. R. Lane, A. Rajib, W. Keenan, Q. Zheng, A. Khare   +8 more
wiley   +1 more source

Synthetic aperture radar backscatter is influenced by bubbles at the ice/water interface of an Antarctic lake

Communications Earth & Environment
Synthetic aperture radar is an invaluable tool for monitoring lake ice. This study utilizes synthetic aperture radar to analyze the 2019-2023 backscatter time series of perennially ice-covered Lake Untersee in East Antarctica.
Adam Gaudreau, Denis Lacelle, Dale T. Andersen   +2 more
doaj   +1 more source

Quantitative synthetic aperture radar inversion

CoRR
Submitted to IEEE Transactions on Antennas and Propagation, keywords: SAR, imaging, multiple scattering ...
Liliana Borcea, Josselin Garnier, Alexander V. Mamonov, Jörn T. Zimmerling   +3 more
openaire   +2 more sources

RS‐FloodXDepth: Enhancing Remote Sensing‐Derived Flood Extent and Estimating Flood Depth Using a Hydrologically Guided Region‐Growing Method and High‐Resolution DEMs

Water Resources Research, Volume 62, Issue 6, June 2026.
Abstract Remote sensing imagery is widely utilized for mapping flood extents. However, sensor limitations and environmental conditions often reduce mapping capability. Factors such as obscuring clouds, terrain shadows, and dense tree canopies frequently lead to significant information gaps and omission errors, particularly in forests and urban areas ...
D. Tian, H. Liu, L. Wang, S. Cohen, T. Mandal   +4 more
wiley   +1 more source

Airborne Synthetic Aperture Radar: Models, Focusing and Experiments

, 2006
Synthetic Aperture Radar (SAR) is a remote sensing technique that allows the generation of microwave images of the Earth surface, independently of weather condition and of sun illumination.
Perna, Stefano
core  

Buoy Observations of Ocean Swell Propagation Across the Pacific Ocean

Journal of Geophysical Research: Oceans, Volume 131, Issue 6, June 2026.
Abstract A network of more than 300 drifting wave buoys is used to study the propagation of ocean swell across the Pacific Ocean. Swell events are identified at buoys in the Equatorial region and then tracked along Great Circle propagation paths both forward and backward in time.
I. R. Young, A. Meucci, I. Houghton, C. Aguirre, A. Babanin, M. Banner, T. Durrant, K. Ewans, H. Jiang, Q. Liu, J. Portilla‐Yandun, P. Smit, A. Toffoli   +12 more
wiley   +1 more source

Numerical study on signatures of atmospheric convective cells in radar images of the ocean

, 1999
Current and wind variations at the ocean surface can give rise to a modulation of the sea surface roughness and thus become visible in radar images. The discrimination between radar signatures of oceanic and atmospheric phenomena can be quite difficult ...
Susanne Ufermann, Ufermann, S., Roland Romeiser, Romeiser, Roland, Ufermann, Susanne, Romeiser, R.   +5 more
core   +1 more source

Geologically Recent Formation of Some Tesserae on Venus by Plains Deformation

Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract Tessera is a pervasively deformed terrain type on Venus generally interpreted as the oldest preserved material on the surface. Large expanses of this terrain type are typically elevated and have been hypothesized to be felsic, perhaps analogous to Earth's continents and even to date from an era with a more Earth‐like climate earlier in Venus ...
Paul K. Byrne, Christian Klimczak, Kelsey T. Crane, Peter B. James, Richard C. Ghail, A. M. Celâl Şengör, Sean C. Solomon   +6 more
wiley   +1 more source

Surface displacements and source parameters of the 2003 Bam (Iran) earthquake from Envisat advanced synthetic aperture radar imagery

The M w 6.6, 26 December 2003 Bam (Iran) earthquake was one of the first earthquakes for which Envisat advanced synthetic aperture radar (ASAR) data were available.
Fielding, E. J., Wright, T. J., Funning, G. J., Parsons, B., Jackson, J. A.   +4 more
core   +1 more source