Results 21 to 30 of about 340 (167)

Changing the Unpredictable Nature of Internal Tides Through Deep Learning

Geophysical Research Letters, 2023
Nonstationary internal tides (ITs) are formed from their interactions with background currents. Harmonic analysis (HA), which cannot be used to estimate the incoherent component, is almost exclusively used method to predict ITs from observations.
Bingtian Li, Yufei Wang, Zexun Wei, Haidong Pan, Tengfei Xu, Xianqing Lv   +5 more
doaj   +1 more source

Occasional intensification of semidiurnal internal tide in Bungo Channel, Japan [PDF]

Geophysical Research Letters, 2006
Data of mooring observation in Kitanada Bay, located on the eastern coast of Bungo Channel in Japan, obtained during summer 2001 are analyzed to investigate a modification process of the semidiurnal internal tide by density currents, occasionally occurring in the channel. The mooring data show that the semidiurnal internal tide has the character of low
Yuji Kawamura, Yuichi Hayami, Takeshi Kohama, Atsushi Kaneda, Hidetaka Takeoka   +4 more
openaire   +1 more source

Observation of Near-Inertial Waves Induced by Typhoon Mitag (2019) on the Southwestern East China Sea Continental Slope

Journal of Marine Science and Engineering, 2022
Based on horizontal velocity data recorded by a moored acoustic Doppler current profiler (ADCP) deployed on the southwestern continental slope of the East China Sea (ECS), this study investigates the characteristics of near-inertial waves (NIWs) induced ...
Zhiling Ouyang, Ze Liu, Yunfei Sun, Bing Yang, Yijun Hou   +4 more
doaj   +1 more source

Global Mapping of the Nonstationary Semidiurnal Internal Tide Using Argo Data

Journal of Geophysical Research: Oceans, 2022
AbstractData from Argo floats equipped with Iridium communications are used to obtain a global map of the total amplitude (or variance) of the semidiurnal internal tide at 1,000 dbar. The results are confirmed by a comparison with data from an historical collection of moored instruments.
Gaspard Geoffroy, Jonas Nycander
openaire   +1 more source

Observations of Breaking Internal Tides on the Australian North West Shelf Edge

Frontiers in Marine Science, 2021
A comprehensive observational data set was used to examine shoreward propagating semidiurnal internal tides as they shoal, break and run-up as turbulent boluses across the edge of the Australian North West Shelf (NWS), offshore Dampier, during late ...
Gustavo Lauton, Gustavo Lauton, Charitha Bandula Pattiaratchi, Carlos A. D. Lentini, Carlos A. D. Lentini   +4 more
doaj   +1 more source

Regional modeling of internal-tide dynamics around New Caledonia – Part 2: Tidal incoherence and implications for sea surface height observability [PDF]

Ocean Science
New Caledonia, in the southwestern tropical Pacific, has recently been identified as a hot spot for energetic semidiurnal internal tides. In a companion paper, the life cycle of coherent internal tides, characterized by fixed amplitude and phase, was ...
A. Bendinger, A. Bendinger, S. Cravatte, S. Cravatte, L. Gourdeau, C. Vic, F. Lyard   +6 more
doaj   +1 more source

Internal-tide vertical structure and steric sea surface height signature south of New Caledonia revealed by glider observations [PDF]

Ocean Science
In this study, we exploit autonomous underwater glider data to infer internal-tide dynamics south of New Caledonia, an internal-tide-generation hot spot in the southwestern tropical Pacific.
A. Bendinger, A. Bendinger, S. Cravatte, S. Cravatte, L. Gourdeau, L. Rainville, C. Vic, G. Sérazin, G. Sérazin, F. Durand, F. Marin, J.-L. Fuda   +11 more
doaj   +2 more sources

Modeling and separate exclusion of disturbances in terrestrial observations

Геофизический журнал, 2013
The technique of a separate deletion of linear and anomalous nonlinear drift of earth tides observations for diurnal and semidiurnal waves are presented.
A.M. Kutnyi, V. Pavlik, T. Babich
doaj   +1 more source

High-Frequency Motions in the Southeastern South China Sea During Winter–Spring 2018/2019

Frontiers in Marine Science, 2021
High-frequency motions in the southeastern South China Sea (SCS) have rarely been investigated due to sparse field observations. The vertical distribution and temporal variation of internal tides (ITs) and near-inertial waves (NIWs) near the Nansha area ...
Zhipeng Zhang, Zhipeng Zhang, Hongzhou Xu, Hongzhou Xu, Philip A. Vetter, Qiang Xie, Qiang Xie, Xiaohui Xie, Wei Song, Chuan Tian   +9 more
doaj   +1 more source

Optimizing internal wave drag in a forward barotropic model with semidiurnal tides [PDF]

Ocean Modelling, 2015
A global tuning experiment for the semidiurnal tide is performed with a barotropic model. The model is forced with the M2 equilibrium tide and accounts for the self-attraction and loading (SAL) term. In addition to a quadratic drag, various linear internal wave drag terms adjusted by a scale factor of Oð1Þ are applied.
Buijsman, M.C., Arbic, B.K., Green, J.A.M., Helber, R.W., Richman, J.G., Shriver, J.F., Timko, P.G., Wallcraft, A.   +7 more
openaire   +1 more source