Hyperspectral Measurements of Wet, Dry and Saline Soils from the McMurdo Dry Valleys: Soil Moisture Properties from Remote Sensing 期刊名称： Antarctic Science
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作者： Levy, Joph, Nolin, Anne, Fountain, Andrew, Head, James日语自学教程
chee什么意思年份： 2014年
期号： 第5期教师节祝福语英语版
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关键词： active layer; permafrost; spectroscopy; terrestrial environment; water tracks
幼儿学数学摘要：Soil moisture is a spatially heterogeneous quantity in the McMurdo Dry Valleys of Antarctica that exerts a large influence on the biological community and on the thermal state of Dry Valleys permafrost. The goal of this project was to determine whether hyperspectral remote nsing techniques could be ud to determine soil moisture conditions in the Dry Valleys. We measured the spectral reflectance factors of wetted soil samples from the Dry Valleys under natural light conditions and related diagnostic spectral features to surface layer soil moisture content. Diagnostic water absorpt
bear什么意思our怎么读ion features in the spectra at 1.4 m and 1.9 m were prent in all samples, including samples doped with high concentrations of chloride salts. The depth of the 1.4 m absorption is shown to increa linearly with increasing gravimetric water content.
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