武昌哨声色散特征及F₂峰以上电子浓度与管电子含量的计算

武昌哨声色散特征及F 2 峰以上电子浓度与管电子含量的计算 DISPERSION CHARACTERISTICS OF WHISTLERS RECEIVED AT WUCHANG AND CALCULATION OF ELECTRON CONCENTRATION N AND TUBE CONTENT N T ABOVE h mF2 徐继生 first-author 保宗悌 梁百先 本文给出了计算低纬一跳哨声色散的一种方法;分析了武昌地面哨声色散的特征,并着重探讨了利用低纬地面哨声资料推算赤道面内哨声路径顶点处电子浓度N eq 与管电子含 N T 的方法,得到由实测哨声色散与电离层F 2 层寻常波临界频率换算N eq 与N T 的实用关系式。对不同季节的哨声实例计算的结果,N eq 的中值为2.76×10 4 [厘米] -3 ,N T 的中值为1.61×10 13 个。 In present paper we have provided a method for calculating the dispersion of one-hop whistlers at low latitudes and discussed the dispersion characteristics of whistlers received at Wuchang. However, our emphasis has been placed on exploration of a method for calculating tke electron concentration in the equatorial plane at the top of the propagation path N eq and the tube electron content N T from ground whistlers observations at low latitudes. Thus, a set of simple algebraic relations has been obtained and by using these we can convert the whistler dispersion and F 2 critical frequency values into N eq and N T . Calculations have been made for a set of whistler observations recorded in different seasons. The results show that the medium values of N eq and N T are 2.76×10 4 el/cm 3 and 1.06×10 13 el respectively. 1982-01-01 2021-04-01 1