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首页> 外文期刊>IEEE Geoscience and Remote Sensing Letters >SMOS Mission Reveals the Salinity Structure of the Indian Ocean Dipole
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SMOS Mission Reveals the Salinity Structure of the Indian Ocean Dipole

机译:SMOS任务揭示了印度洋偶极子的盐度结构

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This letter reports the European Space Agency's Soil Moisture and Ocean Salinity (SMOS) observations of the sea surface salinity (SSS) structure during an Indian Ocean Dipole (IOD) event. Comparisons with Argo data show that the SMOS satellite is able to resolve the observed SSS pattern in the Indian Ocean despite some challenges in the northern Indian Ocean. Results of box averages for the Java Sumatra Coast (JSC) and South Central Indian Ocean (SCIO) regions show low SSS anomalies in the former and high SSS anomalies in the latter during the 2010 negative IOD event. Analyses of salt flux and salt budget terms suggest that, in the JSC region, salt tendency is an interplay between freshwater forcing and horizontal advection terms, with increased precipitation having a higher impact in driving SSS anomalies than advection. In the SCIO region, advection seems to be more important than the freshwater forcing term.
机译:这封信报道了欧洲航天局在印度洋偶极子(IOD)事件期间对海面盐度(SSS)结构的土壤湿度和海洋盐度(SMOS)观测结果。与Argo数据的比较表明,尽管印度洋北部存在一些挑战,但SMOS卫星仍能够解析印度洋观测到的SSS模式。在2010年负IOD事件中,爪哇苏门答腊海岸(JSC)和中南印度洋(SCIO)地区的箱均结果显示,前者的SSS异常低,后者的SSS异常高。对盐通量和盐分收支项的分析表明,在JSC地区,盐分趋势是淡水强迫和水平对流项之间的相互作用,降水增加对驱动SSS异常的影响大于对流。在SCIO地区,对流似乎比强迫淡水更为重要。

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