Journal ArticleDOI
Evaluation of Radial Ocean Surface Currents Derived From Sentinel-1 IW Doppler Shift Using Coastal Radar and Lagrangian Surface Drifter Observations
Artem Moiseev,Harald Johnsen,Morten W. Hansen,Morten W. Hansen,Johnny A. Johannessen,Johnny A. Johannessen +5 more
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This article is published in Journal of Geophysical Research.The article was published on 2020-04-01. It has received 25 citations till now. The article focuses on the topics: Drifter & Radar.read more
Citations
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Journal ArticleDOI
On Removal of Sea State Contribution to Sentinel‐1 Doppler Shift for Retrieving Reliable Ocean Surface Current
Artem Moiseev,Harald Johnsen,Johnny A. Johannessen,Johnny A. Johannessen,Fabrice Collard,G. Guitton +5 more
Journal ArticleDOI
First multi-year assessment of Sentinel-1 radial velocity products using HF radar currents in a coastal environment
TL;DR: In this paper, a simple empirical method is proposed to calibrate and correct operational S1 L2 RVL products and retrieve two-dimensional maps of surface currents in the radar line-of-sight.
Journal ArticleDOI
First multi-year assessment of Sentinel-1 radial velocity products using HF radar currents in a coastal environment
TL;DR: In this article , a simple empirical method is proposed to calibrate and correct operational S1 L2 RVL products and retrieve two-dimensional maps of surface currents in the radar line-of-sight.
Journal ArticleDOI
Monitoring Lakes Surface Water Velocity with SAR: A Feasibility Study on Lake Garda, Italy
Marina Amadori,Virginia Zamparelli,Giacomo De Carolis,Gianfranco Fornaro,Marco Toffolon,Mariano Bresciani,Claudia Giardino,Francesca De Santi +7 more
TL;DR: In this paper, the authors investigated the possibility of retrieving surface water velocity from SAR Doppler analysis in medium-size lakes and found that the surface velocity retrieved from SAR is found to overestimate the numerical results and the existence of a bias is investigated.
Journal ArticleDOI
Towards Retrieving Reliable Ocean Surface Currents in the Coastal Zone from the Sentinel‐1 Doppler Shift Observations
TL;DR: In this paper , the satellite attitude is responsible for 30% of the variation in the Doppler shift observations, while the antenna pattern can describe an additional 15% and the residual variation after the re-calibration is about 3.8 Hz, corresponding to 0.21 -0.15 m/s radial velocity depending on the incidence angle.
References
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Journal ArticleDOI
Diagnostic Model and Analysis of the Surface Currents in the Tropical Pacific Ocean
Fabrice Bonjean,Gary Lagerloef +1 more
TL;DR: In this article, a diagnostic model of the tropical circulation over the 0-30m layer is derived by using quasi-linear and steady physics, which combines geostrophic, Ekman, and Stommel shear dynamics, and a complementary term from surface buoyancy gradient.
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HF radio measurements of surface currents
Robert H. Stewart,Joseph W. Joy +1 more
TL;DR: In this article, the authors measured ocean surface currents using both a conventional and the HF technique, and reasonable agreement was found with respect to the phase velocity of the wave in still water, c = √(g/k).
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Ocean Surface Currents Mapped by Radar
TL;DR: In this paper, a high-frequency radar remote-sensing system for measuring and mapping near-surface ocean currents in coastal waters has been analyzed and described, and a transportable prototype version of the system was designed, constructed, and tested.
Journal ArticleDOI
Tropical Pacific near-surface currents estimated from altimeter, wind, and drifter data
TL;DR: In this paper, a physically-based statistical model calibrated by 15 m drogue drifters is used to estimate tropical surface currents from satellite-derived surface topography and wind stress.