Results 131 to 140 of about 46,278 (262)

New High Precision Measurements of Apollo Samples: 0.3–5 GHz Complex Refractive Indices

Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract Active and passive radar techniques provide information on the subsurface structure and history of planetary bodies. However, interpretations of radar data are limited by our understanding of the complex dielectric permittivity and magnetic permeability of the surface material.
P. Linton, R. Ghent, P. Gorham, P. Allison, J. J. Beatty, A. Connolly, E. S. Costello, P. Lucey, A. Jung, A. Machtay, K. McBride, C. Miki, E. Oberla, J. Rolla, A. Romero‐Wolf, C. J. Tai Udovicic   +15 more
wiley   +1 more source

PLIS: an airborne polarimetric L-band interferometric synthetic aperture radar

, 2011
PLIS is an airborne synthetic aperture radar designed to be used in conjunction with a passive radiometer to collect microwave data at L-band for the remote sensing of soil moisture.
Panciera, R., Bates, B., McGrath, A., Stacy, N., Yang, R., Gray, D., Yardley, H., Walker, J., Hacker, J.   +8 more
core  

Evaluating Model Sensitivity of Various Data Input Resolutions for Large Scale Flood Inundation Modeling for Hurricane Helene, NC

JAWRA Journal of the American Water Resources Association, Volume 62, Issue 3, June 2026.
ABSTRACT This study applies a statistically sound methodology for contrasting real‐valued datasets against simulated results generated from the US Army Engineer Research and Development Center's Coastal and Hydraulics Laboratory's first‐order flood inundation hydrologic modeling suite, AutoRoute, to determine the impact of spatial resolution on flood ...
Joshua Smallwood, Robert Pennell, Emily S. Ondich   +2 more
wiley   +1 more source

Advanced Digital Beamforming Concepts for High Performance Synthetic Aperture Radar (SAR) Imaging

, 2009
This paper reviews advanced multi-channel SAR system concepts for the imaging of wide swaths with high resolution. Several novel system architectures employing both direct radiating arrays and reflector antennas fed by a digitial array are introduced ...
Patyuchenko, Anton, Huber, Sigurd, Bordoni, Federica, Moreira, Alberto, Younis, Marwan, Gebert, Nicolas, Krieger, Gerhard   +6 more
core  

Digital beamforming and multidimensional waveform encoding for sapceborne radar remote sensing [PDF]

, 2007
This paper introduces the innovative concept of multidimensional waveform encoding for space-borne synthetic aperture radar (SAR). The combination of this technique with digital beamforming on receive enables a new generation of SAR systems with ...
Moreira, Alberto, Gebert, Nicolas, Krieger, Gerhard   +2 more
core  

Application of Deep Learning and Rain‐On‐Grid Hydrodynamic Modeling for Catchment‐Scale Flood Forecasting in Guwahati, India

Journal of Flood Risk Management, Volume 19, Issue 2, June 2026.
ABSTRACT This study integrates deep learning‐based real‐time rainfall forecasting with hydrodynamic flood modeling to provide near real‐time predictions of urban flood inundation. The research focuses on urban Guwahati, a rapidly urbanizing city in Northeast India prone to recurrent pluvial flooding. A novel hybrid model, Multivariate Singular Spectrum
Shejule Priya Ashok, Sreeja Pekkat
wiley   +1 more source

Surface ruptures and building damage of the 2003 Bam, Iran earthquake mapped by satellite synthetic apeerture radar interferometric correlation

We use the interferometric correlation from Envisat synthetic aperture radar (SAR) images to map the details of the surface ruptures related to the 26 December 2003 earthquake that devastated Bam, Iran.
Fielding, E. J., Rosen, P. A., Nazari, H., Walker, R., Talebian, M., Ghorashi, M., Jackson, J. A.   +6 more
core   +1 more source

Performance Evaluation of Automated Flood Inundation Mapping Techniques Using Multi‐Temporal Sentinel‐1 SAR Data

Journal of Flood Risk Management, Volume 19, Issue 2, June 2026.
ABSTRACT In recent times, the development of algorithms to delineate water surface maps has significantly boosted flood monitoring and mitigation efforts by utilizing dual polarization, multi‐temporal Sentinel‐1 synthetic aperture radar (SAR) data. The Sentinel‐1 mission, with its global land monitoring capability, has been widely employed for SAR ...
Gautam Dadhich, Mukand Babel, Hiroyuki Miyazaki, Indrajit Pal, Nitin Kumar Tripathi, Salvatore G. P. Virdis   +5 more
wiley   +1 more source

Multi-Channel ScanSAR for High-Resolution Ultra-Wide-Swath Imaging

, 2008
Multi-channel radar systems enable to overcome the inherent limitation of conventional synthetic aperture radar (SAR). An example is the combination of digital beamforming on receive in elevation with multi-aperture SAR signal reconstruction in azimuth ...
Moreira, Alberto, Gebert, Nicolas, Krieger, Gerhard   +2 more
core  

Development of Next‐Generation Flood Inundation Maps: A Case Study in Kaohsiung City, Taiwan

Journal of Flood Risk Management, Volume 19, Issue 2, June 2026.
ABSTRACT Flood inundation mapping has become a critical reference for flood risk management, particularly for determining insurance premiums and formulating mitigation strategies in rapidly urbanizing areas with high population density. With recent advancements in mapping technologies and high computing capacity, high‐resolution spatiotemporal datasets
Chih‐Hung Hsu, Jiun‐Huei Jang, Che‐Hao Chang, Wei‐Lin Lee, Chia‐Chen Chien, Po‐Hsien Chung   +5 more
wiley   +1 more source