比辐射 meaning in English
specific radiation
Examples
- At the end of the formation , both current and potential distributions are uniform . however , their distributions on the negative plate with the expanded grid design are a little more uniform
化成结束时电流密度和电位分布都比较均匀,且拉网式负极板比辐射式负极板更均匀。 - One avhrr image of the yangtze delta at 13 : 00 on 15th apr . , 2003 is used to retrieve the regional parameter such as surface albedo , ndv1 , surface emissivity and surface temperature , which is based on regional trait of the yangtze delta to choose different model . all above will give a methodological support to gain the regional surface parameters , what ' s more , it will afford the parameter support to calculate the regional et too
选取了2003年4月15日13时的avhrr影像，根据长江三角洲区域特点，选择不同的反演模型，分别对长江三角洲区域地表反照率、归一化植被指数、地表比辐射系数、地表温度进行了反演，为区域地表参数的获取提供了方法支持，也为长江三角洲的区域蒸散量求取提供了参数支持。 - Taking erectophile type continuous vegetation as a example , authors had done many monte carlo simulations , and established empirical analytic expressions of radiances with component temperature , soil emissivity and leaf area index . empirical analytic expressions were used to construct objective function and genetic algorithm was employed to synchronously retrieve 5 parameters , such as component temperature , soil emissivity and lai , from thermal infrared 2 channels and 2 angles data . many experiments of genetic algorithm inversion from simulated data were conducted , results show that it is very robust to retrieve component temperature using genetic algorithm ; genetic algorithm can cope with uncertainty inversion problem pretty well if full advantage of priori knowledge was taken . comparison between inversion results and ground - truth data has been done . this paper offers a new example to retrieve component temperature from multi - channel , multi - angle thermal infrared data based on the model of directionality of thermal radiance
在热辐射方向性规律的基础上，以喜直型连续植被为例，进行了大量的monte carlo模拟，建立了辐射亮度和组分温度植被叶面积指数及土壤比辐射率之间的经验函数关系。采用遗传算法，从热红外2个波段2个角度数据中，同时反演混合像元组分温度土壤比辐射率和叶面积指数等5个参数。通过对模拟的观测数据进行大量的遗传算法反演试验，结果表明，遗传算法反演组分温度非常稳健，在宽松的先验知识条件下，遗传算法可以解决不确定性反演问题。 - In short , through retrieving the parameter such as surface albedo , surface temperature and surface emissivity , all the energy flux such as net radiance flux , soil heat flux and latent heat flux can be computed in sequence further , then latent heat flux which provide energy for et can be computed based on energy balance equation , finally instantaneous et and daily et can be obtained
总之，根据地表能量平衡方程，通过计算对地表反照率、地表温度、地表比辐射系数、归一化植被指数等参数进行反演，进一步计算出了地表净辐射通量，土壤热通量和潜热通量，最后获得了遥感影像成像时的瞬时蒸散及当天的总蒸散量。