American Institute of Mathematical Sciences

doi: 10.3934/dcds.2020332

Well-posedness for the three dimensional stochastic planetary geostrophic equations of large-scale ocean circulation

 School of Mathematics and Statistics, Xi'an Jiaotong University, Xi'an, 710049, P. R. China

Received  March 2020 Revised  August 2020 Published  September 2020

Fund Project: This work was supported by the National Science Foundation of China Grant (11401459, 11871389), the Natural Science Foundation of Shaanxi Province (2018JM1012) and the Fundamental Research Funds for the Central Universities (xjj2018088)

The objective of this paper is to study the well-posedness of solutions for the three dimensional planetary geostrophic equations of large-scale ocean circulation with additive noise. Since strong coupling terms and the noise term create some difficulties in the process of showing the existence of weak solutions, we will first show the existence of weak solutions by the monotonicity methods when the initial data satisfies some "regular" condition. For the case of general initial data, we will establish the existence of weak solutions by taking a sequence of "regular" initial data and proving the convergence in probability as well as some weak convergence of the corresponding solution sequences. Finally, we establish the existence of weak $\mathcal{D}$-pullback mean random attractors in the framework developed in [11,25].

Citation: Bo You. Well-posedness for the three dimensional stochastic planetary geostrophic equations of large-scale ocean circulation. Discrete & Continuous Dynamical Systems - A, doi: 10.3934/dcds.2020332
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