A Program of Analysis of the Multiexperiment Data from the Cusp Observatory at Svalbard, Norway: A GEM Project

该提案要求支持继续收集和 斯瓦尔巴特群岛朗伊尔城多仪器数据分析 天文台 用一个全天空的摄像机， 扫描光度计、辐射计、感应和磁通门 磁力计，这个网站是非常适合研究的尖点 以及高纬度磁层边界的划定。 的 朗伊尔城天文台在北方是独一无二的， 在北方的中午， 冬天 天空足够暗，可以进行光学观测。 10月下旬至2月上旬。 网站已开通 成功超过十年。 研究多重 仪器数据有助于提供解释背景 不适用于单一仪器测量。 而 磁力计可用于识别台站位置， 对于主要的高纬海流系统， 各种文书确定了与各种 靠近Cusp的区域。到目前为止，还不清楚是什么过程， 发射和相关的地磁脉动代表;他们 可以绘制边界或显示由 磁层边界 更大的问题是， 这个提议。 在这个冬季，这场运动将 使我们能够研究尖点区域的大尺度特征， 及时发展。 与冲动事件有关， 磁层顶、磁弧和磁波都被探测到，需要进一步研究 才能确定身份 当结合 卫星数据，数据套件足以开始这一进程 识别极光形态的电离层特征 的cusp。

This proposal requests support for the continued collection and analysis of multi-instrument data at the Longyearbyen, Svalbard Observatory. Instrumented with an all-sky camera, a meridian scanning photometer, riometer, induction and fluxgate magnetometers, this site is well suited for studies of the cusp and delineation of high latitude magnetospheric boundaries. The Longyearbyen observatory is unique in the northern hemisphere in lying on the dark side of the terminator at noon during northern winter. The sky is dark enough to allow optical observation from late October to early February. The site has been operated successfully for more than a decade. Studies of the multi instrument data helps provide a context for interpretation unavailable for single instrument measurements. While the magnetometers can be used to identify the station location with regard to the major high-latitude current systems, the optical instruments identify emissions associated with the various regions near the cusp. As yet, it is not clear what processes the emissions and associated geomagnetic pulsations represent; they may map boundaries or show the processes confined by magnetospheric boundaries. The larger question is the goal of this proposal. During this winter season, this campaign will allow us to study large scale features of the cusp region and their development in time. Associated with impulsive events at the magnetopause, arcs and waves are detected which require study before a positive identification can be made. When combined with satellite data, the data suite is sufficient to begin the process of identifying ionospheric signatures of auroral forms associated the the cusp.