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PATTERNS OF SSS VARIABILITY THE EASTERN TROPICAL PACIFIC

机译:SSS变异的模式,东热带太平洋

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摘要

Sea surface salinity (SSS) observations from NASA's satellite missions, Aquarius/SAC-D and Soil Moisture Active Passive (SMAP), are used to describe spatial patterns of the seasonal cycle, as well as intraseasonal and interannual variability, in the eastern tropical Pacific, the location of the second Salinity Processes in the Upper-ocean Regional Study (SPURS-2) field experiment. The results indicate that the distribution of SSS variance is highly inhomogeneous in both space and time. The seasonal signal is largest in the core of the Eastern Pacific Fresh Pool and in the Gulf of Panama. The interannual signal is highest in a relatively narrow zonal band along approximately 5 degrees N, while the intraseasonal signal appears to be a dominant mode of variability in the zonally stretched near-equatorial region. Located right in the middle of a hotspot of high SSS variance, the SPURS-2 site appears to be at the crossroads of many different processes that shape the distribution of SSS in the eastern tropical Pacific and beyond.
机译:美国国家航空航天座卫星任务,水瓶座/ SAC-D和土壤湿气活性(SMAP)的海面盐度(SSS)观测用于描述季节性周期的空间模式,以及东部热带太平洋的季节性循环的空间模式,以及季节性和际变化,中海区域研究(SPURS-2)田间实验中的第二盐度过程的位置。结果表明,SSS方差的分布在两个空间和时间内高度不均匀。季节性信号是东太平洋新鲜游泳池的核心和巴拿马湾的核心。沿着大约5度N的相对窄的区域带中的续际信号在相对窄的区域带中最高,而季节性信号似乎是Zonally拉伸的近赤道区域中的主要变异性模式。位于高级SSS方差的热点中间,Spurs-2网站似乎是许多不同流程的十字路口,这些过程塑造了东部热带太平洋及其他地区的SSS分布。

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  • 来源
    《Oceanography》 |2019年第2期|20-29|共10页
  • 作者单位

    Univ Hawaii Sch Ocean & Earth Sci & Technol Int Pacific Res Ctr Honolulu HI 96822 USA;

    Univ Hawaii Sch Ocean & Earth Sci & Technol Hawaii Inst Geophys & Planetol Honolulu HI 96822 USA;

    Univ North Carolina Wilmington Dept Phys & Phys Oceanog Wilmington NC USA;

    CALTECH Jet Prop Lab Ocean Circulat & Air Sea Interact Grp Pasadena CA USA;

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