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cave effects
相关语句
  孔穴效应
     When the vegetation and soil system is isothermal with 293K temperature, the radiant brightness temperature increment is more than 0.8K, the maximum is 1.3K caused by cave effects.
     当连续植被处于 2 0℃同温状况时 ,孔穴效应引起的辐射亮度增量基本上都在 0 .8℃以上 ,最高可达到 1.3℃。
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  相似匹配句对
     The effects of G.
     而G.
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     other effects.
     其他作用。
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     Effects of Soil Cover on Drips Hydrochemical Characteristics in Jiangjun Cave,Guizhou
     贵州将军洞上覆土层对滴水水化学特征的影响
短句来源
     Study on the Variation of Traveller Flow of Yellow Dragom Cave in Wulingyuan and its Effects
     武陵源黄龙洞客流变化及其影响研究
短句来源
     Explore Danxia Cave
     探寻丹霞洞穴之谜
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The correct recognition of radiant directionality of non isothermal mixed pixel is a precondition to its retrieval of component temperatrues. Based on the local thermal equilibrium and component effective emissivity concept the radiant model of continuous vegetation has been studied. The model shows that the radiant directionality of isothermal mixed pixel is fully dependent on that of whole effective emissivity of pixel, which is a function of component emissivities and the crown construct. For nonisothermal...

The correct recognition of radiant directionality of non isothermal mixed pixel is a precondition to its retrieval of component temperatrues. Based on the local thermal equilibrium and component effective emissivity concept the radiant model of continuous vegetation has been studied. The model shows that the radiant directionality of isothermal mixed pixel is fully dependent on that of whole effective emissivity of pixel, which is a function of component emissivities and the crown construct. For nonisothermal mixed pixel, the component temperatures play important role in adjustment of radiant directionality. The paper studies the relationship between the radiant directionality with leaf facet emissivity, soil surface emissivity, leaves area index ( LAI ) and leaves angle distribution ( LAD ) by Monte Carlo simulated results, it further analyses the whole effective emissivity and radiance increments caused by cave effects. Take the spherical type of LAD as an example, and set the values of leaf facet emissivity and soil surface emissivity to 0.98 and 0.94 respectively, the increment of whole effective emissivity ranges from 0.01 to 0.025 when value of LAI is set to more than 1.0 in nadir direction. When the vegetation and soil system is isothermal with 293K temperature, the radiant brightness temperature increment is more than 0.8K, the maximum is 1.3K caused by cave effects.

正确认识非同温混合像元热辐射方向性规律是利用多角度遥感数据反演像元组分温度的前提。论文基于局地热平衡条件和组分有效发射率概念探讨了连续植被的热辐射方向性模型。模型表明同温下的热辐射方向性只决定于连续植被体系总有效发射率的方向性 ,它是各组分有效发射率的和 ,决定于植被叶面和土壤表面的发射率、冠层结构参数。在非同温状况下 ,组分温度通过组分有效发射率调节体系的辐射亮度方向变化。模型解释了热辐射中孔穴效应问题。并通过蒙特卡罗逆向模拟从微观探讨了热辐射方向性与植被叶面和土壤表面的发射率、冠层结构参数的关系 ,并对孔穴效应引起体系发射率的增量和辐射亮度的增量进行了模拟分析。结果表明 ,对于球面型连续植被 ,叶面和土壤表面发射率值分别取 0 .98和 0 .94时 ,垂直方向上孔穴效应使体系的总有效发射率有 0 .0 1— 0 .0 2 5幅度的增值。当连续植被处于 2 0℃同温状况时 ,孔穴效应引起的辐射亮度增量基本上都在 0 .8℃以上 ,最高可达到 1.3℃。

The cave effect model of variogram is introduced and combination structure of the cave effect model is applied to analyze the spatial structure of the conductive property in the right bank of the dam in Jinping Hydro Power Project.Based on the analysis, indicator Kringing method is applied to estimate the filtration parameters in the given area. The suitability of the cave effect model is verified by cross-validation confirmation.The variance of estimation is relatively small.

以锦屏水电站坝址区右岸岩体的渗透性为实例,引入变异函数的孔穴效应模型,就渗透性的各向异性特点应用该模型的套合结构对单位吸水率的空间结构进行了分析。在此基础上,采用指示克立格(Kriging)方法对研究区域参数的渗透性进行估值计算。通过交叉验证法证实了孔穴效应模型在此研究范围的适用性,同时,这一方法的估计方差较小表明了Kriging方法它在确定裂隙介质中渗透性参数方面的可行性。

 
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