2022, 42(5): 72-81. doi: 10.3969/j.issn.1673-9159.2022.05.009
Keywords： Luzon Strait , ocean heat transport , ocean reanalysis
【目的】揭示吕宋海峡热能输运的季节和年际变化特征，并评估不同海洋再分析资料计算结果的异同。【方法】基于CMEMS 的1993-2019 年四套海洋再分析资料，通过对比分析，研究吕宋海峡120.75oE 剖面热能输运的季节和年际变化特征。【结果】通过吕宋海峡的热能输送主要发生在500 m 以浅，呈“流套型”或者“弯曲型”结构。净的热能输送以输入南海为主，夏季微弱净流出，其他季节是净流入，冬季最强。吕宋海峡净热输运年际变化存在约6 a 周期，与ENSO 显著正相关（P < 0.05），在ENSO 发展期的10 月份和衰退期的4 月份相关系数最高。【结论】吕宋海峡净热输运及相关流场和混合层的季节变化受南海季风和海洋环境季节变化影响显著，在年际尺度主要体现为与ENSO 相关的变化特征。四套资料在描述吕宋海峡热能输运的季节和年际变化方面有较好的一致性，但是在输运强度和流场结构变化方面存在显著差异，其中FOAM资料的差异性较为明显。
【目的】揭示吕宋海峡热能输运的季节和年际变化特征，并评估不同海洋再分析资料计算结果的异同。【方法】基于CMEMS 的1993-2019 年四套海洋再分析资料，通过对比分析，研究吕宋海峡120.75oE 剖面热能输运的季节和年际变化特征。【结果】通过吕宋海峡的热能输送主要发生在500 m 以浅，呈“流套型”或者“弯曲型”结构。净的热能输送以输入南海为主，夏季微弱净流出，其他季节是净流入，冬季最强。吕宋海峡净热输运年际变化存在约6 a 周期，与ENSO 显著正相关（P < 0.05），在ENSO 发展期的10 月份和衰退期的4 月份相关系数最高。【结论】吕宋海峡净热输运及相关流场和混合层的季节变化受南海季风和海洋环境季节变化影响显著，在年际尺度主要体现为与ENSO 相关的变化特征。四套资料在描述吕宋海峡热能输运的季节和年际变化方面有较好的一致性，但是在输运强度和流场结构变化方面存在显著差异，其中FOAM资料的差异性较为明显。
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