نتایج جستجو برای: ocean energy

تعداد نتایج: 726642  

2008
Jordi Isern-Fontanet Guillaume Lapeyre Patrice Klein Bertrand Chapron Matthew W. Hecht

[1] The ability to reconstruct the three-dimensional (3D) dynamics of the ocean by an effective version of Surface Quasi-Geostrophy (eSQG) is examined. Using the fact that surface density plays an analogous role as interior potential vorticity (PV), the eSQG method consists in inverting the QG PV generated by sea-surface density only. We also make the extra assumption that sea-surface temperatu...

2012
Choong-Ki Kim Jodie E. Toft Michael Papenfus Gregory Verutes Anne D. Guerry Marry H. Ruckelshaus Katie K. Arkema Gregory Guannel Spencer A. Wood Joanna R. Bernhardt Heather Tallis Mark L. Plummer Benjamin S. Halpern Malin L. Pinsky Michael W. Beck Francis Chan Kai M. A. Chan Phil S. Levin Stephen Polasky

Many hope that ocean waves will be a source for clean, safe, reliable and affordable energy, yet wave energy conversion facilities may affect marine ecosystems through a variety of mechanisms, including competition with other human uses. We developed a decision-support tool to assist siting wave energy facilities, which allows the user to balance the need for profitability of the facilities wit...

2015
Jeffrey D. Paduan Leslie K. Rosenfeld José Eduardo Goncalves

The long-range goals of this project are to understand the environmental factors that define the level of internal wave activity in the littoral oceans and to develop re-locatable models capable of predicting these levels. The hypothesis is that energy due to internal tides generated through interactions with complex coastal topography is both predictable, using high-resolution primitive equati...

2008
J. Moehlis Stefan G. Llewellyn

The radiation from the mixed layer into the interior of the ocean of near-inertial oscillations excited by a passing storm in the presence of the beta effect is reconsidered as an initial-value problem. Making use of the fact that the mixed layer depth is much smaller than the total depth of the ocean, the solution is obtained in the limit of an ocean that is effectively infinitely deep. For a ...

2017

Many nations have expanded their national energy portfolio to ameliorate the effects of climate change and to ensure the security and certainty of energy availability. These efforts have led to scrutiny of marine renewable energy (MRE) as one of several viable new renewable energy sources. In addition to the need to prove the reliability and efficiency of current and wave energy converters, eff...

Journal: :CoRR 2011
Abeer Ghandar Eman Shabaan Zaky Taha Fayed

Node misbehavior due to selfish or malicious behavior could significantly degrade the performance of MANET because most existing routing protocols in MANET aim to find the most efficient path. Overhearing and reputation based cooperation schemes have been used to detect and isolate the misbehaving nodes as well as to force them to cooperate. Performance analysis has been done for the network tr...

2005
WILCO HAZELEGER CAMIEL SEVERIJNS RICHARD SEAGER FRANCO MOLTENI Abdus Salam

The atmospheric energy transport variability associated with decadal sea surface temperature variability in the tropical Pacific is studied using an atmospheric primitive equation model coupled to a slab mixed layer. The decadal variability is prescribed as an anomalous surface heat flux that represents the reduced ocean heat transport in the tropical Pacific when it is anomalously warm. The at...

2016
RU CHEN ANDREW F. THOMPSON GLENN R. FLIERL

Insight into the global ocean energy cycle and its relationship to climate variability can be gained by examining the temporal variability of eddy–mean flow interactions. A time-dependent version of the Lorenz energy diagram is formulated and applied to energetic ocean regions from a global, eddying state estimate. The total energy in each snapshot is partitioned into three components: energy i...

2001
M. Ave J. A. Hinton R. A. Vázquez A. A. Watson E. Zas

A new approach to inferring the mass composition of cosmic rays at energies above 10 Abstract We describe a new approach to establishing the mass composition at high energies. Based on measuring both the vertical and inclined shower rates, it has the potential to distinguish heavy nuclei from light nuclei. We apply the method to Haverah Park data above 10 18 eV to show that, under the assumptio...

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