应兰州大学数学与统计学院孙春友教授邀请，西安交通大学数学与统计学院尤波副教授将于2021年7月30日至8月3日访问我校并作学术报告。

报告题目：A discrete data assimilation algorithm for the three dimensionalplanetary geostrophic equations of large-scale ocean circulation

时  间：2021年8月2日下午16:00

腾讯会议ID：780 480 844

报告摘要：

In this talk, we consider a discrete data assimilation algorithm for the three dimensional planetarygeostrophic equations of large-scale ocean circulation in the case that the observable measurements, obtaineddiscretely in time, may be contaminated by systematic errors, which works for a general class of observablemeasurements, such as low Fourier modes and local spatial averages over finite volume elements. We willprovide some suitable conditions to establish asymptotic in time estimates of the difference between theapproximating solution and theunknown exact (reference) solution in some appropriate norms for these twodifferent kinds of interpolant operators, which also shows that the approximation solution of the proposeddiscrete data assimilation algorithm will convergent to the unique unknown exact solution of the originalsystem at an exponential rate, asymptotically in time if the observational measurements are free of error.

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尤波副教授简介

尤波，西安交通大学数学与统计学院副教授、博士生导师，2012年毕业于兰州大学。主要研究领域为非线性泛函分析与无穷维动力系统。迄今为止，已在NA, ZAMP, CMS, DCDS等杂志发表学术论文30余篇，先后主持国家自然科学基金青年项目、面上项目等。

甘肃应用数学中心

甘肃省高校应用数学与复杂系统省级重点实验室

数学与统计学院

萃英学院

2021年7月30日