Parameter estimation in the stochastic superparameterization of two-layer quasigeostrophic flows
Parameter estimation in the stochastic superparameterization of two-layer quasigeostrophic flows
复制标题
两层准地转流随机超参数化中的参数估计
DOI:
10.1007/s40687-020-00213-8
复制
发表时间:
2020
影响因子:
1.2
通讯作者:
Lee, Yoonsang
中科院分区:
文献类型:
--
作者:
Lee, Yoonsang
Geophysical turbulence has a wide range of spatiotemporal scales that requires a multiscale prediction model for efficient and fast simulations. Stochastic parameterization is a class of multiscale methods that approximates the large-scale behaviors of the turbulent system without relying on scale separation. In the stochastic parameterization of unresolved subgrid-scale dynamics, there are several modeling parameters to be determined by tuning or fitting to data. We propose a strategy to estimate the modeling parameters in the stochastic parameterization of geostrophic turbulent systems. The main idea of the proposed approach is to generate data in a spatiotemporally local domain and use physical/statistical information to estimate the modeling parameters. In particular, we focus on the estimation of modeling parameters in the stochastic superparameterization, a variant of the stochastic parameterization framework, for an idealized model of synoptic scale turbulence in the atmosphere and oceans. The test regimes considered in this study include strong and moderate turbulence with complicated patterns of waves, jets, and vortices.
登录
查看更多内容
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
V. Kitsios;J. Frederiksen;M. Zidikheri
通讯作者:
M. Zidikheri
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
B. Farrell;P. Ioannou
通讯作者:
P. Ioannou
影响因子:
4.1
作者:
Yoonsang Lee;B. Engquist
通讯作者:
B. Engquist
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
Yoonsang Lee;A. Majda;D. Qi
通讯作者:
D. Qi
影响因子:
1.6
作者:
I. Grooms;Yoonsang Lee;A. Majda
通讯作者:
A. Majda