Results 161 to 170 of about 168,615 (209)

Surface Current Measurements At Ocean Fronts

12th Canadian Symposium on Remote Sensing Geoscience and Remote Sensing Symposium,, 2005
Abstract : Using a unique slope-following surface current meter, we have obtained measurements of near surface currents during the NORCSEX (Norwegian Continental Shelf Experiment) in March, 1988. These instruments were tethered to subsurface flotation on traditional taut wire moorings at three locations near ocean frontal areas.
D.R. Johnson, F.M. Fetterer
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Ocean Model Simulation of Southern Indian Ocean Surface Currents

Marine Geodesy, 2007
The dynamic importance of the Southern Indian Ocean (SIO) lies in the fact that it connects the three major world oceans: the Pacific, Atlantic, and Indian Oceans. Modeling study has been used to understand the circulation pattern of this very important region.
Anshu Prakash Mishra, S. Rai, A. C. Pandey   +2 more
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High-Frequency Radar Observations of Ocean Surface Currents

Annual Review of Marine Science, 2013
This article reviews the discovery, development, and use of high-frequency (HF) radio wave backscatter in oceanography. HF radars, as the instruments are commonly called, remotely measure ocean surface currents by exploiting a Bragg resonant backscatter phenomenon.
Jeffrey D, Paduan, Libe, Washburn
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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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Interferometric radar measurement of ocean surface currents

Nature, 1987
A new method of measuring surface currents using an interferometric synthetic aperture radar is presented. An airborne implementation has been tested over San Francisco Bay near the time of maximum tidal flow, resulting in a map of the east-west component of the current. Only the line-of-sight component of velocity is measured by this technique.
R. M. Goldstein, H. A. Zebker
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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
openaire   +1 more source