The principle and methods of monitoring the soil moisture based on remote sensing information are reviewed. Especially much attention was paid on the data assimilation method.

总结了当前国内外基于遥感信息监测土壤水分的原理和方法，特别是对数据同化法进行了着重阐述。

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Of course, in order to introduce the superiority than other methods, the WOA data is compared with assimilation data, at last the assimilation data is tested credibility.

文中为了说明数据同化的优越性，利用WOA数据与其进行比较，体现了同化数据对真实场描述的可靠性。

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Of course, in order to introduce the superiority than other methods, the WOA data is compared with assimilation data, at last the assimilation data is tested credibility.

文中为了说明数据同化的优越性，利用WOA数据与其进行比较，体现了同化数据对真实场描述的可靠性。

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