草地红外辐射特性研究

Comparative Studies of the IR Radiation Characteristics of Grassplot

建立了全覆盖草地理论模型和草地地表的热平衡方程 ,考虑了不同时刻的太阳短波辐射、风速、地表空气相对湿度以及草地地表不同的吸收率对温度均值及其起伏的影响。最后采用蒙特卡罗方法计算了草地地表的辐射统计特性。结果表明 。

The theoretical model of full-covered grassplot and the heat balance equation of grass surface are established. In which the effect of the short-wave radiation of the sun at different time, wind speed, the relative humidity of the atmosphere and different absorptivity of grass surface are under consideration. At last, the radiance statistics of grass surface is analyzed by Monte-Carlo simulation. The result shows that the radiance temperature of grass surface has great relationship with these circumstance factors.\;