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PATTERNS OF SSS VARIABILITY THE EASTERN TROPICAL PACIFIC

机译:东太平洋太平洋SSS变化的格局

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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:来自NASA的卫星任务,水瓶座/ SAC-D和土壤水分主动被动(SMAP)的海面盐度(SSS)观测值用于描述东部热带太平洋的季节性周期的空间格局以及季节内和年际变化。 ,第二个盐度过程在上海洋区域研究(SPURS-2)野外实验中的位置。结果表明,SSS方差的分布在时间和空间上都是高度不均匀的。季节性信号在东太平洋淡水池的核心和巴拿马湾最大。年际信号在大约5度N的相对较窄的纬向带中最高,而季节内信号似乎是纬向延伸的近赤道区域中变化的主要方式。 SPURS-2站点位于SSS高变化热点的正中,似乎处在许多不同过程的交汇点,这些过程决定了东部热带太平洋及其以外地区SSS的分布。

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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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