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Inter-comparison of SMOS and aquarius brightness temperatures at L-band over selected targets

機譯：比較選定目標的L波段smOs和水瓶座亮度溫度的相互比較

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The spectral window at L-band (1.400 - 1.427 GHz) is reserved for passive microwave remote sensing. This band is well-suited to retrieve soil moisture and ocean salinity due to emissivity of soil and seawater decreases with moisture and salinity, respectively, affecting microwave radiation of the Earth's surface. Nowadays, there are two space missions devoted to Earth observation with L-band radiometers on-board: the SMOS mission from the ESA and the Aquarius/SAC-D mission from the NASA and CONAE. Both missions are providing the first TB measurements of the Earth's surface at 1.413 GHz. Thus, it is a great opportunity to compare SMOS and Aquarius TBs and verify the continuity and consistency of the data. This inter-comparison is a key requirement needed to use data of both radiometers for meteorological, hydrological and climatological studies on a long term.
機譯：L波段（1.400-1.427 GHz）的頻譜窗口保留用于無源微波遙感。由于土壤的發(fā)射率分別隨濕度和鹽度的降低而降低，從而影響地球表面的微波輻射，因此該波段非常適合恢復土壤濕度和海洋鹽度。如今，有兩個專門用于機載L波段輻射計的太空飛行任務：來自ESA的SMOS任務和來自NASA和CONAE的Aquarius / SAC-D任務。兩項任務都將提供1.413 GHz頻率的地球表面的首次TB測量。因此，這是比較SMOS和Aquarius TB并驗證數(shù)據連續(xù)性和一致性的絕佳機會。這種長期的比較是將兩種輻射計的數(shù)據長期用于氣象，水文和氣候研究的關鍵要求。

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