AUTHOR=Wang Shaodong , Du Hui , Wei Gang , Chen Zhentao , Shi Jianqiao , Lan Zhenyang TITLE=Experimental investigation of the second-mode internal solitary wave in continuous pycnocline and the applicability of weakly nonlinear theoretical models JOURNAL=Frontiers in Marine Science VOLUME=11 YEAR=2025 URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2024.1510119 DOI=10.3389/fmars.2024.1510119 ISSN=2296-7745