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Incoherent Scatter Measurements of F-Region Density, Temperatures, and Vertical Velocity at Millstone Hill

机译:millstone Hill的F区密度,温度和垂直速度的非相干散射测量

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摘要

The Millstone Hill Thomson (incoherent) scatter radar system has been operated routinely since 1963 to perform a synoptic study of F-region electron densities, and electron and ion temperatures. This report describes system changes made in 1968 which considerably increased the accuracy of the measurements and allowed their extension to higher altitudes. These changes have also made it impossible to measure the vertical velocity of the plasma over the altitude range 450 to 900 km to an accuracy on the order of 5 to 10 m/sec, depending upon altitude and time of day.Of even greater significance, complete machine reduction of the results is now possible so that considerable savings in time and effort have been secured in analyzing the data. The new system permits all the radar data to be gathered in the digital computer in real time, thereby eliminating the need for post real-time processing of magnetic-tape recordings of the signals. Furthermore, it is now possible to transmit the data to other workers in computer-usable form.This report describes the main functions of the computer program required to analyze the measurements, and lists the times of all measurements made with the new system prior to 1 January 1970. Examples of these results are presented and discussed.
机译:自1963年以来,Millstone Hill Thomson(非相干)散射雷达系统已常规运行,以对F区电子密度以及电子和离子温度进行概要研究。该报告描述了1968年进行的系统更改,这些更改大大提高了测量的准确性,并允许将其扩展到更高的高度。这些变化也使得不可能在450至900 km的高度范围内测量等离子体的垂直速度,精度取决于5到10 m / sec的时间,这取决于一天中的高度和时间。现在可以完全减少结果的机器数量,从而确保在分析数据时节省大量时间和精力。新系统允许将所有雷达数据实时收集在数字计算机中,从而无需对信号的磁带录像进行后期实时处理。此外,现在可以将数据以计算机可用的形式传输给其他工作人员。此报告描述了分析测量所需的计算机程序的主要功能,并列出了使用1之前的新系统进行的所有测量的时间1970年1月。给出并讨论了这些结果的示例。

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