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调查中国邻近海域的海平面预算的关闭情况

Yang Li^1,2,3, Jinyun Guo⁴, Yu Sun⁵

¹State Key Laboratory of Precision Geodesy, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, China.

Scientific reports

|July 2, 2025

概括

中国的区域海平面变化

科学领域:

海洋学海洋学海洋学
气候科学气候科学
地质物理学地质物理学

背景情况:

区域相对海平面变化给沿海社区带来了重大挑战.
中国邻近的海域对全球海平面上升的冲击非常脆弱.
了解海平面预算对于准确的区域预测至关重要.

研究的目的:

为了调查过去二十年来中国邻近海域的海平面预算.
用多个数据源评估海平面预算组成部分的不确定性.
估计冰盖,冰川和陆地储水对区域海平面变化的贡献.

主要方法:

利用时间变化的重力场数据和固态数据.
应用海平面指纹来估计质量损失的贡献.
分析了不同中国海和西北太平洋的海平面预算余额.

主要成果:

汇总平均值数据显示,在不同地区的海平面预算余额中,有显著的平方根平均值误差.
没有单一的数据集能够在65%的置信区间内接近长期海平面趋势.
无数据和海洋动态模型被确定为过度残留的主要贡献者.

结论:

格雷斯卫星的取消别名产品 (AOD1B模型) 显著影响了特定区域海平面预算中的跨年信号.
固态数据和海洋建模中的不一致性阻碍了精确的海平面预算关闭.
需要进一步的研究来完善数据来源和模型,以准确评估区域海平面变化.

关键词:

格雷斯 (GRACE) 是一个恩典.区域海平面预算区域海平面预算海平面指纹的指纹绝缘的绝缘的

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