Results 51 to 60 of about 694 (184)

Acoustic evidence for topographic blocking on a steep submarine canyon wall

Limnology and Oceanography, Volume 71, Issue 6, June 2026.
Abstract Diel vertical migration (DVM) is the largest mass‐movement of animals on Earth, with profound ecological and biogeochemical consequences. DVM has mostly been studied in the open ocean; however, at steep slopes, pelagic animals including vertical migrators must contend with the seafloor, emphasizing the importance of understanding DVM in these ...
Astrid B. Leitner, Chad M. Waluk, Kim R. Reisenbichler, Rob E. Sherlock, Bruce H. Robison, Kelly J. Benoit‐Bird   +5 more
wiley   +1 more source

A Heterogeneous Multi-Agent System Model With Navigational Feedback for Load Demand Management of a Zonal Medium Voltage DC Shipboard Power System

IEEE Access, 2019
Increased demand of electric ship power with emerging requirements for serving highly dynamic loads at limited power sources, has motivated the development of medium voltage DC shipboard power systems.
Wenzeng Du, Genke Yang, Changchun Pan, Peifeng Xi   +3 more
doaj   +1 more source

Performance of a glider‐mounted multifrequency echosounder for measuring the vertical distribution and abundance of large pelagic copepods

Limnology and Oceanography: Methods, Volume 24, Issue 6, June 2026.
Abstract The difficulty of sampling zooplankton communities in situ has driven advancements in autonomous, remote sensing technology. The goal of this paper was to perform a gear comparison study testing the performance of one such piece of technology—a glider‐mounted four‐frequency echosounder—against traditional shipboard methods of measuring ...
Delphine Mossman, Joseph D. Warren, Natasha J. Hynes, Kimberley T. A. Davies   +3 more
wiley   +1 more source

Reliable DC Shipboard Power Systems—Design, Assessment, and Improvement

IEEE Open Journal of the Industrial Electronics Society
Targeting a climate-neutral maritime sector drives the adoption of the all-electric ship (AES). While AESs can utilize both ac and dc shipboard power systems (SPS), a dc system offers advantages in efficiency, power density, and source synchronization ...
Robin van der Sande, Aditya Shekhar, Pavol Bauer   +2 more
doaj   +1 more source

A Top‐Down View of Global and Regional Carbon Budgets From an Ensemble of Atmospheric Inversions

Global Biogeochemical Cycles, Volume 40, Issue 6, June 2026.
Abstract Atmospheric inversions provide surface CO2 flux estimates based on in situ observed atmospheric CO2 mole fractions or satellite‐based column average CO2 (XCO2). Here, we provide a detailed assessment of 14 atmospheric CO2 inversions included in the Global Carbon Budget (GCB2024).
A. M. van der Woude, I. T. Luijkx, R. J. de Kok, W. Peters, F. Chevallier, C. Rödenbeck, P. Ciais, N. Chandra, K. Wang, R. Janardanan, H. van Asperen, A. Bastos, A. van den Berg, A. A. Bloom, S. Botía, K. Bowman, J. G. Canadell, R. A. F. de Souza, C. Q. Dias‐Junior, L. Feng, P. Friedlingstein, L. V. Gatti, E. Gloor, K. Ishijima, F. Jiang, Z. Jin, W. Ju, X. Lan, J. Liu, Z. Liu, T. Machida, S. Maksyutov, A. C. Manning, A. Martinez, G. A. Martins, K. McKain, J. B. Miller, L. Nayagam, Y. Niwa, P. I. Palmer, P. K. Patra, P. A. Pickers, B. Poulter, B. B. Stephens, C. Sweeney, S. Wofsy, Z. Wu, D. Yang, J. Yun, N. Zeng   +49 more
wiley   +1 more source

Diagnosing Kinetic Energy Scaling Using Lagrangian and Eulerian Metrics in Different Dynamical Regimes of the North Atlantic

Journal of Geophysical Research: Oceans, Volume 131, Issue 6, June 2026.
Abstract Understanding the multiscale dynamics of ocean surface turbulence requires diagnostics that reliably characterize variability at scales both larger and smaller than the Rossby radius of deformation. This study evaluates the consistency and interpretability of second‐order velocity structure functions derived from Eulerian and Lagrangian ...
I. Leimann, M. Epke, J. Dräger‐Dietel, A. Griesel, M. Walter, L. Linardakis, P. Korn, N. Brüggemann   +7 more
wiley   +1 more source

Hydrographic Variability and Sound‐Channel Dynamics in the Nordic Seas: Implications for Predicting Acoustic Arrival Structure

Journal of Geophysical Research: Oceans, Volume 131, Issue 6, June 2026.
Abstract Warm, saline Atlantic waters and fresher Arctic‐origin waters converge in the central Nordic Seas, creating strong mesoscale and submesoscale variability that influences both hydrography and sound propagation. During the Northern Ocean Rapid Surface Evolution 2022 experiment, high‐resolution temperature and salinity measurements were collected
Megan S. Ballard, Alejandra Sanchez‐Rios, Robert T. Taylor, Timothy F. Duda, J. Thomas Farrar, Harper Simmons, Jason D. Sagers, Jennifer Mackinnon, Andrew J. Lucas, Leah Johnson, Ailin Brakstad, Ilker Fer   +11 more
wiley   +1 more source

Protection Coordination for Reliable Marine DC Power Distribution Networks

IEEE Access, 2020
This paper presents demonstration of a protection scheme integrated into marine DC power distribution networks to investigate the coordination between each protection action.
Seongil Kim, Gabriele Ulissi, Soo-Nam Kim, Drazen Dujic   +3 more
doaj   +1 more source

Collaborative optimization for planning and operation strategy of shipboard hybrid energy storage systems based on MPC-HHO

Zhongguo Jianchuan Yanjiu
ObjectiveFocusing on the development of shipboard hybrid energy storage systems ( HESSs) planning and operation strategy design under complex working conditions, a multi-objective co-optimization method with higher adaptability to working conditions is ...
Shuiqing KE, Xiangguo YANG, Xin LI, Yufan WANG, Quanzheng DUAN, Telu TANG   +5 more
doaj   +1 more source

The digital twin of complex shipboard DC microgrids: The high‐performing synergy of compiled models and HIL platform in the dynamics emulation of zonal power electronic power distribution systems

IET Power Electronics
Nowadays, resilience is a crucial attribute to be pursued in advanced shipboard DC microgrids. When the power distribution is zonal, the presence of autonomous‐controlled converters guarantees both power use and resiliency improvement.
Andrea Alessia Tavagnutti, Andrea Vicenzutti, Massimiliano Chiandone, Daniele Bosich, Giorgio Sulligoi   +4 more
doaj   +1 more source