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首页> 外文期刊>Theoretical and applied climatology >Air temperature retrieval from remote sensing data based on thermodynamics
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Air temperature retrieval from remote sensing data based on thermodynamics

机译：基于热力学从遥感数据获取气温

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摘要

A new approach to retrieving air temperature from land surface temperature is presented. The new method is based on thermodynamics. Two important parameters, namely crop water stress index and aerodynamic resistance, were used to build a quantitative relationship between the land surface temperature and the ambient air temperature. The method was applied using MODIS satellite data for a location situated in the North China Plain. Comparing the measurement values at meteorological stations with air temperature, derived by the method for certain pixels, indicates that derived values can be obtained within an accuracy of 3 degreesC for more than 80% of data processed. Sensitivity studies also suggest that inaccuracies associated with measurement error in the model variables are also within the 3 degreesC range.
机译：提出了一种从地表温度获取气温的新方法。新方法基于热力学。利用两个重要参数，即作物水分胁迫指数和空气动力学阻力，建立了地表温度与周围空气温度之间的定量关系。该方法是使用MODIS卫星数据应用于华北平原的某个位置。通过该方法针对某些像素得出的气象站的测量值与气温的比较表明，对于超过80％的已处理数据，可以在3摄氏度的精度内获得得出的值。敏感性研究还表明，与模型变量中的测量误差相关的误差也在3°C范围内。

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