Vertical Electric Field data from Concordia Station - 2009 - 2012

Vertical Electric field measurements captured at Concordia Station. The files are stored in XML format, and contain detailed headings describing the data layout and format. The data are collected by a rotating electric field mill mounted on an all metal mast. The EFM is ~3m off the ground.The vertical electric field measurements collected at the French (IPEV) and Italian (PNRA) station at Concordia are approved under the project: Electricite Atmospherique DC 33 N. Data collection was commenced in January 2009 and concluded in January 2012.Unlike the Vostok equipment (which is similar), the Concordia electric field mill was not calibrated after installation. Experience at Vostok indicates this equipment is relatively stable (see the Vostok data and the post-2006 calibrations if you need to quantify the term 'relatively stable'. As a rough estimate, dividing the 'raw' value by 10,000 yields an value approximately equal to the 'volts per metre', positive downward, relative to the calibration box (which is what both the Vostok and Concordia electric field mills are calibrated against). The instrument compression is not noted but is significantly greater for the earlier era instrument (operating at Vostok between 1998 and 2004), principally but not exclusively due to the different heights of the mill. As a better estimate of the values relative to the 'calibration box' use: Ez (relative to calibration box) = Raw Value * 1.019/10000 -2.2 [in volts per metre relative to the calibration box]. Gary Burns is working on a 'fair weather' selection of the Concordia data, and a comparison with coincident vertical electric field measurements at Vostok.Public Summary of the project:We are investigating a poorly understood meteorological process with both internal (thunderstorms and electrified clouds) and external (space weather/cosmic ray) inputs having weather and climate implications. We have recently shown that a small but statistically significant sun-weather linkage occurs via the atmospheric electric circuit and that the linkage mechanism has an appropriately enhanced meteorological response associated with distant but more dominant generators of this circuit. The process has both natural (variations in cosmic rays; electrical meteorological climate variations may have a modified influence on global climate by this process) and anthropogenic (via global warming) climate implications. Public summary of the season progress:Electric field data were collected at Vostok and Concordia on the Antarctic Plateau to measure the atmospheric circuit. We have quantified the local contributions (solar wind and local meteorology) to the Vostok measurements. The solar wind contribution dominates over the local meteorology, confirming that the Vostok measurements largely measure a global signal of electrical meteorological convective activity (expected to increase due to anthropogenic climate change). Minor but statistically significant seasonal influences due to local temperature and wind have been quantified.

本数据集为康科迪亚站（Concordia Station）获取的垂直电场测量数据。数据文件以XML格式存储，内含描述数据结构与格式的详细表头信息。数据由安装于全金属桅杆上的旋转式电场仪（Electric Field Mill, EFM）采集，该仪器距地面高度约3米。
康科迪亚站由法国极地研究所（Institut Polaire Français, IPEV）与意大利国家南极研究计划（Programma Nazionale di Ricerche in Antartide, PNRA）共同采集的垂直电场测量数据，已通过项目Electricite Atmospherique DC 33 N的审批。数据采集工作始于2009年1月，于2012年1月结束。
与沃斯托克站（Vostok）的同类设备不同，康科迪亚站的电场仪在安装后未进行校准。沃斯托克站的使用经验表明，该设备性能相对稳定（若需量化“相对稳定”的含义，可参考沃斯托克站数据集与2006年后的校准记录）。作为粗略估算，将“原始值”除以10000即可得到近似于“伏特每米”的结果，该值以校准箱为基准，向下为正方向（沃斯托克站与康科迪亚站的电场仪均以此校准箱作为校准依据）。
未记录仪器的压缩特性，但1998年至2004年在沃斯托克站运行的早期设备的压缩特性显著更强，这主要（但非唯一）源于电场仪安装高度的差异。若需获得以“校准箱”为基准的更精准估算值，可使用如下公式：以校准箱为基准的垂直电场强度Ez = 原始值 × 1.019/10000 - 2.2 [单位：伏特每米，以校准箱为基准]。
加里·伯恩斯（Gary Burns）目前正在处理康科迪亚站数据集的“晴好天气”筛选工作，并将其与沃斯托克站同期的垂直电场测量数据进行对比分析。
项目公开摘要：本研究旨在探索一种尚未被充分认知的气象过程：该过程的驱动因素包括内部因素（雷暴与带电云）与外部因素（空间天气/宇宙射线），其结果对天气与气候均存在影响。近期我们已证实，通过大气电路存在一种虽微弱但具备统计学显著性的太阳-天气关联机制，且该关联机制会对该电路中距离更远但占主导地位的信号源产生相应增强的气象响应。该过程涉及自然因素（宇宙射线变化；通过该过程，气象电场变化可能对全球气候产生经修正的影响）与人为因素（全球变暖）两方面的气候效应。
季度进展公开摘要：为探测大气电路，我们在南极高原的沃斯托克站与康科迪亚站采集了电场数据。我们已量化分析了太阳风与局地气象等局地因素对沃斯托克站测量数据的影响。太阳风的影响占主导地位，这证实沃斯托克站的测量数据主要反映了气象电场对流活动的全球信号（该信号预计将因人为气候变化而增强）。我们已量化分析了局地温度与风速带来的微弱但具备统计学显著性的季节影响。