楚科奇陆架海域夏季温度年际变化特征Interannual Variation of Summer Temperature of Sea Areas on the Chukchi Shelf
王贵圆,李敏,于婷,李丙瑞,施旭东,谢玲玲
摘要(Abstract):
【目的】研究楚科奇海陆架区夏季(8—10月)温度年际变化。【方法】利用GLORYS12V1再分析数据,并结合海表热通量及断面侧向热通量数据,分析楚科奇海温度年际变化及其与海表热通量和侧向热通量的关系。【结果与结论】楚科奇海东南海域温度最高,约8℃;北部和西部海域多低于3℃;1993—2020年5、29、47 m以及50m以浅温度的线性增加趋势为0.03~0.07℃/a,且表现出年际变化特征;经验正交函数分解结果显示,各层第一模态均表现出整个研究区域为同位相变化,且各层温度变化具有较大的区域不同;热收支分析结果显示,该时期短波辐射和白令海峡热输送是两个主要热量输入量,影响温度年际变化,而长波辐射、潜热通量以及通过东侧和北侧断面的热量为主要的热量输出量。线性回归分析得出楚科奇海热通量的变化与8—10月平均温度之间的定量关系,可为更好地表征和预测楚科奇海温度变化特征提供参考。
关键词(KeyWords): 楚科奇海;温度;年际变化;海表热通量;侧向热通量
基金项目(Foundation): 国家重点研发计划(2022YFC3104805);; 广东海洋大学博士科研启动经费(R20022);; 自然资源部海洋环境信息保障技术重点实验室开放基金课题(B22209);; 工业与信息化部高技术船舶科研项目(MC-201919-C11);; 广东省冲一流专项资金(080503032101,231420003)
作者(Author): 王贵圆,李敏,于婷,李丙瑞,施旭东,谢玲玲
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