DOI: 10.1002/2014GL059704
论文题名: Aquarius surface salinity and the Madden-Julian Oscillation: The role of salinity in surface layer density and potential energy
作者: Guan B. ; Lee T. ; Halkides D.J. ; Waliser D.E.
刊名: Geophysical Research Letters
ISSN: 0094-10133
EISSN: 1944-9864
出版年: 2014
卷: 41, 期: 8 起始页码: 2858
结束页码: 2869
语种: 英语
英文关键词: Aquarius
; MJO
; salinity
; satellite
Scopus关键词: Climatology
; Dynamics
; Potential energy
; Satellites
; AQUARIUS
; Madden-Julian oscillation
; MJO
; salinity
; Salinity effects
; Sea surface salinity
; Surface salinities
; Western indian oceans
; Oceanography
; Aquarius
; density
; evaporation
; Madden-Julian oscillation
; mixed layer
; potential energy
; sea surface salinity
; Indian Ocean
; Indian Ocean (Equatorial)
; Pacific Ocean
; Pacific Ocean (Equatorial)
英文摘要: Sea surface salinity (SSS) data from the Aquarius satellite are analyzed along with auxiliary data to investigate the SSS signature of the Madden-Julian Oscillation (MJO) in the equatorial Indian and Pacific Oceans, the effect of evaporation-minus-precipitation (E-P), the implication for the role of ocean dynamics, and the SSS influence on surface density and potential energy. MJO-related SSS changes are consistent with E-P forcing in the western Indian Ocean throughout the MJO cycle and in the central Indian Ocean during the wet phase of the MJO cycle. However, SSS changes cannot be explained by E-P in the central Indian Ocean during the dry phase and in the eastern Indian and western Pacific Oceans throughout the MJO cycle, implying the importance of ocean dynamics. SSS has an overall larger contribution to MJO-related surface density and potential energy anomalies than SST. It partially offsets the SST effect in the western-to-central Indian Ocean and reinforces the SST effect in the eastern Indian and western Pacific Oceans. Ocean modeling and assimilation need to properly account for salinity effects in order to correctly represent mixed layer variability associated with the MJO. Our results also clarify some discrepancy in previous studies about the E-P effect on MJO-related SSS variations. Key Points Clarifies role of E-P on MJO-related salinity and implication for ocean dynamics Corrects misinterpretation in a recent study about the role of E-P on salinity Reveals the important effects of salinity in surface layer density and energy ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84899037723&doi=10.1002%2f2014GL059704&partnerID=40&md5=bece2e097f28fe159142446cb29fb50f
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7397
Appears in Collections: 气候减缓与适应
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作者单位: Joint Institute for Regional Earth System Science and Engineering, University of California, Los Angeles, CA, United States
Recommended Citation:
Guan B.,Lee T.,Halkides D.J.,et al. Aquarius surface salinity and the Madden-Julian Oscillation: The role of salinity in surface layer density and potential energy[J]. Geophysical Research Letters,2014-01-01,41(8).