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Validation of SMAP radiometer extreme wind speed data product with rapid scatterometer and stepped frequency microwave radiometer

机译:快速散射仪和步进频率微波辐射仪对SMAP辐射仪极端风速数据产品的验证

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The Soil Moisture Active Passive (SMAP) mission was launched January 31st, 2015. It is designed to measure the soil moisture over land using a combined active / passive L-band system. Due to the Aquarius mission, L-band model functions for ocean winds and salinity are already mature and may be directly applied to the SMAP mission. In contrast to Aquarius, the higher resolution and scanning geometry of SMAP allows for wide-swath ocean winds and salinities to be retrieved. We have found that the SMAP radiometer displays sensitivity all the way up to the most extreme wind speeds, possibly as high as 70 m/s, far beyond what is capable with typical C and Ku-band ocean wind scatterometers. In this work we use the Rapid Scatterometer (RapidScat) and Stepped Frequency Microwave Radiometer (SFMR) to further validate these SMAP radiometer-only high-wind speed retrievals.
机译:主动被动土壤水分(SMAP)任务于2015年1月31日启动。该任务旨在使用主动/被动L波段组合系统测量陆地上的土壤水分。由于水瓶座任务,用于海风和盐度的L波段模型功能已经成熟,可以直接应用于SMAP任务。与Aquarius相比,SMAP的高分辨率和扫描几何形状允许检索大范围的海风和盐度。我们已经发现,SMAP辐射计在最极端的风速(可能高达70 m / s)下始终显示出灵敏度,远远超出了典型的C和Ku波段海洋风散射仪的能力。在这项工作中,我们使用快速散射仪(RapidScat)和步进频率微波辐射仪(SFMR)进一步验证这些仅用于SMAP辐射仪的高风速检索。

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