Results 41 to 50 of about 6,503 (283)

Sea Surface Wind Measurement by Airborne Weather Radar Scanning in a Wide-Size Sector

Atmosphere, 2016
We suggest a conceptual approach for measuring the near-surface wind vector over water using the airborne weather radar, in addition to its standard meteorological and navigation applications.
Alexey Nekrasov, Alena Khachaturian, Vladimir Veremyev, Mikhail Bogachev   +3 more
doaj   +1 more source

Simulations of sea surface reflection for V-band O2 differential absorption radar barometry

Frontiers in Remote Sensing, 2023
This study simulates V-band sea surface reflectance and normalized radar cross-section (NRCS) for sea surface air pressure barometry using a differential absorption radar operating at three spectrally even spaced close frequency bands (65.5, 67.75 and 70.
Bing Lin, Matthew Walker Mclinden, Gerald M. Heymsfield, Yongxiang Hu, Nikki Privé, Nikki Privé, Lihua Li, Steven Harrah, Kevin Horgan, Xia Cai, Jim Carswell   +10 more
doaj   +1 more source

On Doppler Shifts of Breaking Waves

Remote Sensing, 2023
Field-tower-based observations were used to estimate the Doppler velocity of deep water plunging breaking waves. About 1000 breaking wave events observed by a synchronized video camera and dual-polarization Doppler continuous-wave Ka-band radar at ...
Yury Yu. Yurovsky, Vladimir N. Kudryavtsev, Semyon A. Grodsky, Bertrand Chapron   +3 more
doaj   +1 more source

Backscattering Statistics of Labeled Sentinel-1 Wave Mode Imagettes for Ten Geophysical Phenomena

Journal of Marine Science and Engineering, 2022
Synthetic aperture radar (SAR) is a sensor that is proven to have great potential in observing atmospheric and oceanic phenomena at high-spatial resolutions (∼10 m).
Ziyue Dai, Huimin Li, Chen Wang, Yijun He   +3 more
doaj   +1 more source

Incidence angle normalization of Wide Swath SAR data for oceanographic applications

Open Geosciences, 2016
A backscattering trend in the range direction of the signal received by Synthetic Aperture Radar (SAR) in Wide Swath (WS) mode results in a progressive reduction of brightness over images from near to far range, which affects the detection and ...
Topouzelis Konstantinos, Singha Suman, Kitsiou Dimitra   +2 more
doaj   +1 more source

Development of a New Tropical Cyclone Strip Segment Retrieval Model for C-Band Cross-Polarized SAR Data

Remote Sensing, 2022
Compared with co-polarized (HH/VV) normalized radar cross-section (NRCS) backscattered from the sea surface, there is no saturation phenomenon in cross-polarized (HV/VH) NRCS when wind speed is greater than about 20 m/s, so cross-polarized synthetic ...
Letian Lv, Yanmin Zhang, Yunhua Wang, Wenzheng Jiang, Daozhong Sun   +4 more
doaj   +1 more source

Technical Evaluation of Sentinel-1 IW Mode Cross-Pol Radar Backscattering from the Ocean Surface in Moderate Wind Condition

Remote Sensing, 2017
The Sentinel-1 synthetic aperture radar (SAR) allows sufficient resources for cross-pol wind speed retrievals over the ocean. In this paper, we present technical evaluation on wind retrieval from both Sentinel-1A and Sentinel-1B IW cross-pol images ...
Lanqing Huang, Bin Liu, Xiaofeng Li, Zenghui Zhang, Wenxian Yu   +4 more
doaj   +1 more source

QuikSCAT normalized radar cross section noise characterization for coastal wind field retrieval : OSI VS20 03

, 2021
30 pages, 10 figuresAn assessment of the noise affecting the QuikSCAT Normalized Radar Cross Sections (σ0s) is carried out in this study. The estimation of Kp ( ˆKp) is compared to the median of the Kp values ( ̃Kp) provided in the Level 1B Full ...
Vogelzang, Jur, Portabella, Marcos, Verhoef, Anton, Stoffelen, Ad, Grieco, Giuseppe   +4 more
core  

Characterization of surface clutter signal in the presence of orography for a spaceborne conically scanning W-band Doppler radar [PDF]

Atmospheric Measurement Techniques
The Earth's surface radar reflection is one of the most important signals received by spaceborne radar systems. It is used in several scientific applications, including geolocation, terrain classification, and path-integrated attenuation estimation.
F. Manconi, A. Battaglia, A. Battaglia, P. Kollias, P. Kollias   +4 more
doaj   +1 more source

Sea Echoes for Airborne HF/VHF Radar: Mathematical Model and Simulation

Remote Sensing, 2020
Currently, shore-based HF radars are widely used for coastal observations, and airborne radars are utilized for monitoring the ocean with a relatively large coverage offshore.
Fan Ding, Chen Zhao, Zezong Chen, Jian Li   +3 more
doaj   +1 more source