Results 121 to 130 of about 8,164 (163)

Prediction of tidal water currents from active sonar tracks

OCEANS 2015 - MTS/IEEE Washington, 2015
Ambient returns from active sonars may contain information that describes in situ environmental characteristics of the ensonified water column. This study seeks to apply Harmonic Analysis in a novel way to derive information about water current flows from the heading and velocity of active sonar tracks.
Anna Slowikowski, Kevin Gormally
openaire   +1 more source

Tidal Current and Level Uncertainty Prediction via Adaptive Linear Programming

IEEE Transactions on Sustainable Energy, 2019
Short-term uncertainty prediction modeling of tidal power generation supports power systems in reserve and regulation markets. In tidal power generation via various tidal energy harvesting technologies, tidal current and level are the most influential factors.
Nima Safari, Seyed Mahdi Mazhari, Benyamin Khorramdel, C. Y. Chung   +3 more
openaire   +1 more source

Modeling and prediction of tidal currents in the Korea strait

Progress in Oceanography, 1988
Abstract Diurnal and semidiurnal tide and tidal currents in the Korea Strait are computed simultaneously by means of a finite-difference method. The model-produced tidal harmonic constants agree satisfactorily with observed values. An M 2 current amphidromic point is found to the northwest of Goto-retto.
Guohong Fang, Jingfei Yang
openaire   +1 more source

A Hybrid Accurate Model for Tidal Current Prediction

IEEE Transactions on Geoscience and Remote Sensing, 2017
This paper proposes an accurate hybrid method based on support vector regression (SVR) and autoregressive integrated moving average (ARIMA) to predict the tidal current speed and direction. In the proposed hybrid model, the ARIMA model captures the linear component of the tidal current, and the remained residual components are modeled by SVR.
openaire   +1 more source

Redetermining the tidal current predictions for the Hudson River, NY

Proceedings of OCEANS 2005 MTS/IEEE, 2005
The National Oceanic and Atmospheric Administration's (NOAA) Center for Operational Oceanographic Products and Services (CO-OPS) collects and distributes observations and predictions of water levels and currents to ensure safe, efficient and environmentally sound maritime commerce.
L. Rear, R. Bourgerie
openaire   +1 more source

Comparisons of measured and predicted sediment transport rates in tidal currents

Marine Geology, 1981
Abstract This paper describes bedload transport measurements in a large-scale sedimentary system on the British continental shelf. Steady-flow sediment transport theories are applied to oscillatory tidal currents, and various equations are compared with measured transport rates from tracer dispersion experiments. The effects of waves on both measured
openaire   +1 more source

Analysis and prediction of influence imposed on Jiaozhou Bay tidal currents and tidal energy of M2 tidal system by Jiaozhou Bay reclamation

Journal of Ocean University of China, 2009
The 3-D ECOMSED ocean model was applied to establish a time-dependent boundary model for Jiaozhou Bay (JZB), in which the operator-splitting technique was used and the ‘dry and wet’ method was introduced. The influence caused by JZB reclamation on the surface level, residual currents, tidal system and tidal energy of M2 tidal system were predicted and ...
Angang Lou, Yuebo Hu, Liang Kuang, Xueqing Zhang, Peng Du   +4 more
openaire   +1 more source

Tidal Current Predictions Using Rotary Empirical Orthogonal Functions

Journal of Atmospheric and Oceanic Technology, 1993
Abstract In the conventional point tidal analysis approach, a set of tidal harmonic constituents is derived from each time series of currents. These sets of tidal constituents are then used to predict the tidal currents. For a large database of current time series, either generated theoretically (e.g., from numerical modeling) or collected ...
openaire   +1 more source

An advanced multistage multi-step tidal current speed and direction prediction model

2017 IEEE Electrical Power and Energy Conference (EPEC), 2017
Non-stationarity and non-linearity of the tidal current speed (TCS) and tidal current direction (TCD) time series are among the main barriers for enhancing the TCS and TCD prediction accuracy. In this regard, this paper proposes an improved complete ensemble empirical mode decomposition adaptive noise (ICEEMDAN) which is employed to decompose the non ...
Nima Safari, Benyamin Khorramdel, Alireza Zare, Chi Yung Chung   +3 more
openaire   +1 more source

ADCP Observation and Numerical Model Prediction of Tidal Currents Near Kozu Island

Volume 10: Ocean Renewable Energy, 2018
Izu island chain south of Tokyo, Japan has been considered as a prospective area for ocean renewable energy development because of relatively strong tidal currents, and the Kuroshio current. An Acoustic Doppler Current Profiler (ADCP) measurement near one of the islands, Kozu island, was conducted to know ocean current variability.
Tsubasa Kodaira, Takuji Waseda
openaire   +1 more source