caa a22 4500 605455392 CHVBK 20210128100212.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s10872-015-0282-8 doi (NATIONALLICENCE)springer-10.1007/s10872-015-0282-8 Signatures of tidal interference patterns in the South China Sea [Elektronische Daten] [Alex Warn-Varnas, Dong Ko, Avijit Gangopadhyay] The formation of arc-type structures in the surface elevation and temperature fields due to internal tidal (IT) waves is studied in the region of the South China Sea (SCS) and Luzon Strait. It is demonstrated that these arc-type structures in the surface elevation and temperature at depth result from the merging of IT waves. Predictions of internal baroclinic tides are conducted with a nonlinear hydrostatic model, the Luzon Strait Nowcast/Forecast System, forced with tides, realistic surface forcing and stratification (Appendix 1). It is shown that IT waves generated by the undersea ridges near the Batan and Babuyan Islands in the Luzon Strait propagate westward and merge into arcs in the SCS. The superposition of IT waves is also investigated with a linear knife-edge model (Appendix 2). M2 and K1 tidal waves are considered. It is demonstrated that K1, M2 tidal waves from the Babuyan Islands combine with waves from the Batan Islands to form arc signatures in sea surface elevation and warm spots in the South China Sea. Possible modulation effects of K1 waves on M2 waves are shown. Dynamics of the nonlinear hydrostatic model shape the arc segments differently from the linear model. Arc lengths increase from the sources in nonlinear and linear models. The model-predicted merged IT waves are compared with SAR images. The Oceanographic Society of Japan and Springer Japan, 2015 Tidal interference pattern nationallicence South China Sea nationallicence Internal tide nationallicence Luzon Strait Nowcast/Forecast System (LZSNFS) nationallicence Linear knife-edge model nationallicence Warn-Varnas Alex Jacobs Technologies Inc., 39529, Stennis Space Center, MS, USA aut Ko Dong Naval Research Laboratory, 39529, Stennis Space Center, MS, USA aut Gangopadhyay Avijit Department of Estuarine and Ocean Sciences, University of Massachusetts Dartmouth, 02747, Dartmouth, MA, USA aut Journal of Oceanography Springer Japan 71/3(2015-06-01), 251-262 0916-8370 71:3<251 2015 71 10872 https://doi.org/10.1007/s10872-015-0282-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10872-015-0282-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Warn-Varnas Alex Jacobs Technologies Inc., 39529, Stennis Space Center, MS, USA aut NATIONALLICENCE 700 1- Ko Dong Naval Research Laboratory, 39529, Stennis Space Center, MS, USA aut NATIONALLICENCE 700 1- Gangopadhyay Avijit Department of Estuarine and Ocean Sciences, University of Massachusetts Dartmouth, 02747, Dartmouth, MA, USA aut NATIONALLICENCE 773 0- Journal of Oceanography Springer Japan 71/3(2015-06-01), 251-262 0916-8370 71:3<251 2015 71 10872