The atmospheric attenuation of THz wave in different heights and different city region

The atmospheric attenuation of THz wave is closely related to the meteorological parameters, such as temperature, barometric pressure, relative humidity, etc. In this paper, the data from China Meteorological Data Sharing Service System is employing to calculate the atmospheric attenuation of THz wave based on MPM (Millimeter Propagation Model), according to ITU-R Rec. P. 676-8. An optimal fitting function (Logarithmic Curve, Index Curve) is put forward to fit these discrete data from Sharing Service System to augment the range of calculating atmospheric attenuation. And the discrete data and fitting curve have a great agreement. In addition, two cities of China (Chengdu, Fuzhou) are selected to research the atmospheric attenuation of THz wave at different heights.