Results 261 to 270 of about 169,696 (300)

Oceanic Surface Current Approximation from Sparse Data

IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020
We study a spline-based approximation of vector fields in the conservative case. Its motivation comes from for instance when approximating current or wind velocity fields, the data deriving in those cases from a potential (pressure for the wind, etc‥). To model the problem, we introduce a minimization problem on a Hilbert space for which the existence ...
Helene Barucq, Monique Chyba, Christian Gout, Carole Le Guyader   +3 more
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Coupling winds to ocean surface currents over the global ocean

Ocean Modelling, 2009
A Wind stress–Current Coupled System (WCCS) consisting of the HYbrid Coordinate Ocean Model (HYCOM) and an improved wind stress algorithm based on Donelan et al. [Donelan, W.M., Drennan, Katsaros, K.B., 1997. The air–sea momentum flux in mixed wind sea and swell conditions. J. Phys. Oceanogr.
Zengan Deng, Lian Xie, Bin Liu, Kejian Wu, Dongliang Zhao, Ting Yu   +5 more
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Ocean Surface Currents in the Classroom

OCEANS 2006, 2006
The Ocean Motion web site (http://oceanmotion.org) provides classroom ready materials for high school teachers and students to investigate ocean surface currents. The story of humankind's interest in surface currents has an adventuresome background in early seafaring and exploration and their patterns of movement impacts the weather, climate, commerce ...
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Ocean Surface Currents and Winds Using Dopplerscatt

IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
DopplerScatt is a Ka-band pencil-beam Doppler scatterometer developed under NASA's ESTO Instrument Incubator Program (IIP) to serve as a demonstrator for future spaceborne instruments to measure ocean surface currents and winds simultaneously. We review the capabilities of the Doppler-Scatt instrument, and present results from multiple airborne ...
E. Rodriguez, A. Wineteer, D. Perkovic-Martin, T. Gal, B. W. Stiles, N. Niamsuwan, R. Rodriguez Monje   +6 more
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Ocean surface currents from satellite data

Journal of Geophysical Research: Oceans, 2017
AbstractThe atmosphere drives entire ocean motions, and yet the exchange of momentum between the atmosphere and ocean occurs in the thin layer where they meet, involving the smallest scales of turbulence. The Ocean Surface Current Analyses Real‐time (OSCAR) project attempts to better understand this exchange using satellite observations with simplified
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Measurement of Ocean Surface Currents by the CRL HF Ocean Surface Radar of FMCW Type. Part 2. Current Vector

Journal of Oceanography, 1999
The Communications Research Laboratory (CRL) has been developing high-frequency ocean surface radars (HFOSRs). The CRL dual-site HFOSR system can clarify the distribution of surface currents with a nominal range of 50 km. This paper presents a theoretical and experimental analysis of the measurement error of the current vector obtained by the CRL HFOSR
Akitsugu Nadai, Hiroshi Kuroiwa, Masafumi Mizutori, Shinnchi Sakai   +3 more
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On surface drift currents in the ocean

Journal of Fluid Mechanics, 1979
A new model of surface drift currents is constructed using the full nonlinear equations of motion. This model includes the balance between Coriolis forces due to the mean and wave-induced motions and the surface wind stresses. The approach used in the analysis is similar to the work by Craik & Leibovich (1976) and Leibovich (1977), but the emphasis
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Method for ocean surface currents measurement by SAR

SPIE Proceedings, 2008
A new method for mapping shallow water topography surface currents from SAR image is introduced based on the shallow water topography SAR imaging mechanism. M4S (presented by Romeiser R.) was used to forward simulate radar signatures of the oceanic features over the ocean surface.
Bin Fu, Weigen Huang, Kaiguo Fan, Xilin Gan, Huaguo Zhang, Aiqin Shi   +5 more
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Airborne Ocean Surface Current Measurements for Offshore Applications

Offshore Technology Conference, 2015
Previous research programs have developed and demonstrated the capability to extract near-shore surface currents from airborne sequences of visual images of surface waves. This same technique can be used for remote sensing of the open ocean to retrieve surface currents over extensive areas in a relatively short period of time.
Steven P. Anderson, Seth Zuckerman, Jan Van Smirren, Rob Smith   +3 more
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Ocean Surface Current Airborne Radar (OSCAR) Demonstrator

2023
Living Planet Symposium, 23-27 May 2022, Bonn ...
Martin, Adrien C.H., Trampuz, Christian, Keryhuel, Hugo, Marié, Louis, Portabella, Marcos, Gommenginger, Christine, Casal, Tânia, Martín-Iglesias, Petronilo   +7 more
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