CEDAR: Ionospheric Auroral Disturbances in Proton Aurora

该奖项将进行光学和雷达测量，并将其与质子在极光椭圆傍晚部分的赤道边缘区域的影响建模结果进行比较，在该区域，质子已知是一种重要的能源。 将在极纬度用一台新的高分辨率阶梯CCD摄谱仪测量H-α和H-β多普勒剖面，在极纬度，EISCAT非相干散射雷达将同时探测质子-极光电离层。 所提议的努力旨在克服过去一直困扰着正确解释这种观察结果的若干问题。 使用高光谱分辨率摄谱仪将尽量减少极光污染的影响。 非相干散射雷达的使用将使获得准确的电离分布成为可能，从而能够准确地确定进入该区域的平均能量和能量通量。

This award would carry out optical and radar measurements that would be compared with the results of the modeling of the effects of proton precipitation for the region of the equatorward edge of the early evening sector of the auroral oval where protons are known to be a significant energy source. Measurements of the H-alpha and H-beta Doppler profiles would be made with a new high resolution echelle-CCD spectrograph at polar latitudes where the EISCAT incoherent scatter radar would provide concurrent soundings of the proton-auroral ionosphere. The proposed effort is aimed at overcoming several problems that have plagued the proper interpretation of such observations in the past. The use of a high spectral resolution spectrograph would minimize the effect of auroral contamination. The use of the incoherent scatter radar would make possible the acquisition of accurate ionization profiles enabling the accurate determination of the average energy and the energy flux into the region..