气候变化领域集成服务门户(CCPortal): Intraseasonal Surface Salinity Variability and the MJO in a Climate Model

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DOI	10.1029/2020GL088997
	Intraseasonal Surface Salinity Variability and the MJO in a Climate Model
	Zhu J.; Kumar A.; Wang W.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:17
英文摘要	Due to the sparsity of ocean observations, understanding inconsistencies exist even in qualitative respect about the mechanisms of intraseasonal sea surface salinity (SSS) over the Indo-Pacific basin. In this study, a quantitative diagnostic of salinity/freshwater budgets related to the Madden-Julian oscillation (MJO) was conducted based on model simulations. The model applied is a modified version of the NCEP Climate Forecast System, version 2. The application of a coupled model other than ocean-only models is one of the unique aspects of this study. The model modifications resulted in a more realistic MJO simulation and a better simulation of intraseasonal SSS variability as validated against the Aquarius estimates. The mechanisms of the MJO-related SSS variability are further explored by conducting a salinity budget analysis over the mixed layer. The analysis indicates a strong spatial variation of dominant physical processes controlling the local SSS variability. For example, while the role of surface fluxes dominates in the western Indian basin, oceanic advection plays an important role in the eastern Indian and western Pacific oceans. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Budget control; Climatology; Surface waters; Climate forecasts; Madden-Julian oscillation; Model modification; Model simulation; Ocean observations; Sea surface salinity; Spatial variations; Surface salinities; Climate models; advection-diffusion equation; air-sea interaction; Aquarius; climate modeling; freshwater input; Madden-Julian oscillation; observational method; sea surface salinity; seasonal variation; spatial variation; Indian Ocean; Pacific Ocean
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169826
作者单位	Climate Prediction Center, NOAA/NWS/NCEP, College Park, MD, United States; Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, United States
推荐引用方式 GB/T 7714	Zhu J.,Kumar A.,Wang W.. Intraseasonal Surface Salinity Variability and the MJO in a Climate Model[J],2020,47(17).
APA	Zhu J.,Kumar A.,&Wang W..(2020).Intraseasonal Surface Salinity Variability and the MJO in a Climate Model.Geophysical Research Letters,47(17).
MLA	Zhu J.,et al."Intraseasonal Surface Salinity Variability and the MJO in a Climate Model".Geophysical Research Letters 47.17(2020).