radiative temperature meaning in English
辐射温度
Examples
- Heat fluxes estimated from radiative temperature by this model is more accurate than other regular corrective methods . two - layer model has been proposed for many years but was difficult to apply in remote sensing because component temperature were unavailable in traditional thermal sensors . a new airborne multi - angular thermal sensor system and retrieved soil and canopy temperatures were used to solve two - layer model , and the simulated heat fluxes show much better accuracy than the results from one - layer model especially above dry surfaces
双层模型虽然提出很多年了，但在应用中一直存在信息不足，求解困难的问题，本文用最新多角度热红外遥感数据? ? ? amtis系统反演的组分温度，首次实现了双层模型在遥感中的应用，结果表明，在输入参数精度相近的情况下，双层模型模拟的通量误差远小于单层模型，尤其在土壤干旱，表面温度较高的地表，双层模型的理论优势在计算中表现得更加突出。 - And this is the first full application of two - layer model in remote sensing . from separated evaporation and transpiration through the model some important field parameters can be derived , such as canopy resistance , co2 flux and crop water use efficiency . a simplified two - layer model was also presented in case of that only radiative temperature is available
在组分温度的帮助下，实现了土壤蒸发和植被蒸腾的准确分离，并且用植被蒸腾速率反算出冠层气孔阻抗、二氧化碳通量、以及作物群体水分利用效率等农田关键参数，是遥感获得此类参数的新思路。 - Single - layer model is convenient to apply but the unclear relationship between radiative and aerodynamic temperatures is still a bottleneck in this field . a new method was developed to derive reliable surface heat fluxes from radiative temperature viewed from arbitrary zenith angle . aerodynamic and radiative temperatures are connected through a so - called optimum component fraction ( ocf ) parameter - the fraction of vegetation in the field of view when the two temperatures are equivalent in oblique viewing
该方法利用表面热辐射方向性和显热通量都是源于土壤和植被温度的贡献这一共同点，发现在一定倾斜角度的观测下，视场中植被与土壤的比例可以较好地反映植被和土壤与大气进行湍流热交换的贡献率，所以称该方法为最佳组分面积比法，用最佳组分面积比可以将任意角度下观测到的辐射温度订正为空气动力学温度，经过地面和遥感数据验证表明，用该方法计算的通量精度高于普通的单层模型。