大气模型的适用性分析及应用研究

Accuracy analysis and applicability of the atmosphere model

临近空间的开发利用对大气环境参数的获取提出了迫切需求,建立了临近空间中性大气模型(Near Space Parameter Model,NSPM),并对其进行了适用性分析.通过对模型精度、残差、标准差的计算,发现密度模型与温度模型的输出结果与实时观测结果具有较好的一致性,而风场模型的输出结果能较好地体现平均观测结果.最后,利用NSPM模型分析了中国地区临近空间区域的各大气参数(密度、温度、压强、经向风、纬向风)的变化特性.研究表明临近空间大气环境变化具有明显的季节性及区域性.

The near space parameter model （NSPM） is established since atmosphere pa rameters are required for development of near space, and the accuracy of the model is analyzed. Based on the calculation of relative accuracy, residual error, and standard de viation of NSPM, we find that the density and temperature results of the model are ac cord with the real time measurements, while the wind result can reproduce the mean wind profile well. Finally, we survey the seasonal variations of the parameters （density, temperature, pressure, meridional and zonal wind） in near space of China. The results indicate that they vary with different months and different places.