Using the radiative temperature difference at 3.7 and 11 μm to tract dust outbreaks
Using the radiative temperature difference at 3.7 and 11 μm to tract dust outbreaks
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DOI：
10.1016/0034-4257(89)90012-6
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发表时间：
1989-02
影响因子：
13.5
通讯作者：
S. Ackerman
中科院分区：
文献类型：
--
作者：
S. Ackerman
研究了3.7 ~ 11 μm辐射温差（ΔAT）作为沙尘暴监测的一种可能方法。理论计算表明，在3.7 μm太阳辐射反射增强ΔAT的白天，该技术对沙尘负荷最为敏感。通过将卫星观测结果与地面能见度估计值进行比较，证明了跟踪沙尘暴的可行性。理论计算还表明，从这些光谱测量推断尘埃层的光学厚度的潜力。
The radiative temperature difference between 3.7 and 11 μm (ΔAT) is investigated as a possible method for tracking dust outbreaks. Theoretical calculations indicate that the technique would be most sensitive to dust loading during the day when the day when ΔAT's are enhanced by reflection of 3.7 μm solar radiation. The feasibility of tracking dust outbreaks is demonstrated by comparing satellite observations with surface estimates of visibility. Theoretical calculations also demonstrate the potential of inferring the dust layer optical depth from these spectral measurements.