A new method for deducing the effective collision frequency profile in the D-region
A new method for deducing the effective collision frequency profile in the D-region
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DOI：
10.1029/2007ja012650
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发表时间：
2008-05
影响因子：
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通讯作者：
Matthew J. Beharrell;F. Honary
中科院分区：
文献类型：
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作者：
Matthew J. Beharrell;F. Honary
提出了一种基于线性正则化的方法，使用非相干散射雷达和同位测距仪来推导 D 区域中的有效碰撞频率分布。 2004年11月9日至2004年11月13日期间特罗姆瑟EISCAT上空的推算碰撞频率与在活跃（ap > 50）和安静（ap < 50）条件下68公里至95公里之间使用NRLMSISe-00大气模型中性密度和温度计算得出的碰撞频率非常吻合。我们还证实了在计算高频电离层吸收时使用具有有效碰撞频率的 Appleton-Hartree 方程的有效性。
A method based on linear regularization is presented for the deduction of the effective collision frequency profile in the D-region using an incoherent scatter radar and a colocated riometer. The deduced collision frequency above EISCAT, Tromso, for the period 09 November 2004 to 13 November 2004 matches very well with that calculated using neutral densities and temperatures from the NRLMSISe-00 atmospheric model between 68 km and 95 km during active (ap > 50) and quiet (ap < 50) conditions. We also confirm the validity of using the Appleton-Hartree equation with effective collision frequencies when calculating the ionospheric absorption at high frequencies.