ANTHALO Blue Ice: Feasibility Study for Geoscientific and Atmospheric Investigation of Antarctica using HALO (ANTHALO-BI)

ANTHALO 蓝冰：使用 HALO 进行南极洲地球科学和大气调查的可行性研究 (ANTHALO-BI)

• 批准号: 316739886
• 负责人: Dr. Christoph Förste
• 金额: --
• 依托单位: Institut für Physik der Atmosphäre
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2016
• 资助国家: 德国
• 起止时间: 2015-12-31 至 2019-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/316739886?language=en
• 关键词: ANTHALO; Blue; Ice; Feasibility; Study

The main goal of this project proposal is to demonstrate the feasibility of scientific experiments aboard HALO during the ANTHALO Blue Ice (ANTHALO-BI) mission in Antarctica. In this context, a risk assessment has to be carried out. Furthermore, the scientific instrumentation for its integration into an extensive HALO scientific mission in Antarctica, the ANTHALO mission, is to be prepared. The operation of the aircraft with landing and taking off at a blue ice runway, together with measurements of GNSS reflectometry and INS strapdown vector gravimetry, is a core element within this project and a major, indispensable step towards the realization of ANTHALO. The main goals of the ANTHALO mission have to be kept in mind when realizing the present project. These are to gain consistent, highly accurate observations of the gravity and magnetic field of the Earth, of surface height, surface/firn properties, thickness and internal layering of the ice sheet, and of the thermal structure and dynamic regime of the middle atmosphere along long flight profiles over the Antarctic continent and, where pertinent, the adjacent Southern Ocean. The geodetic analysis of GNSS data will allow a determination of the flight trajectory in highly accurate coordinates, providing a common reference to the up-to-date International Terrestrial Reference Frame (ITRF) for all observables. To realize a reasonable coverage of measurements in Antarctica it is necessary to choose an airfield in Antarctica as the base for aircraft operations. Thus, the ANTHALO-BI mission will comprise blue-ice landing and taking-off, preferably at Troll Airfield (Dronning Maud Land, East Antarctica), and some flights at the margin of the Antarctic ice sheet, according to prescribed regulations of DLR-FX to operate the HALO in the Antarctic environment. Aboard ANTHALO-BI we aim to perform scientific measurements of strapdown vector gravimetry utilizing a specially calibrated Inertial Navigation System (INS), and of GNSS reflectometry using sideward and downward directed antennas. These measurements will be analysed to infer information on gravity-field related parameters and on surface heights in the marginal region of the Antarctic ice sheet. Four specific research proposals, directly linked to this proposal for the ANTHALO-BI mission, deal with various detailed scientific questions on investigating ice sheet, atmosphere and potential fields in Antarctica.

该项目提案的主要目标是证明在南极洲 ANTHALO 蓝冰 (ANTHALO-BI) 任务期间在 HALO 上进行科学实验的可行性。在此背景下，必须进行风险评估。此外，还将准备将其纳入南极洲广泛的 HALO 科学任务（ANTHALO 任务）的科学仪器。飞机在蓝冰跑道上起降的操作，以及 GNSS 反射测量和 INS 捷联矢量重力测量，是该项目的核心要素，也是实现 ANTHALO 的重要且不可或缺的一步。在实现当前项目时，必须牢记 ANTHALO 任务的主要目标。这些是为了获得对地球重力和磁场、表面高度、表面/冰层特性、冰盖厚度和内部分层、以及沿着中层大气的热结构和动态状态的一致、高精度的观测。在南极大陆以及相关的邻近南大洋上空进行长距离飞行。 GNSS 数据的大地测量分析将能够确定高精度坐标中的飞行轨迹，为所有可观测数据提供最新的国际地球参考系 (ITRF) 的共同参考。为了实现对南极洲的合理测量覆盖，需要选择南极洲的一个机场作为飞机运行的基地。因此，根据 DLR 的规定，ANTHALO-BI 任务将包括蓝冰着陆和起飞，最好在 Troll 机场（南极洲东部 Dronning Maud 地）进行，以及在南极冰盖边缘进行一些飞行。 FX 在南极环境中操作 HALO。在 ANTHALO-BI 上，我们的目标是利用专门校准的惯性导航系统 (INS) 进行捷联矢量重力测量，并利用侧向和向下定向天线进行 GNSS 反射测量。这些测量结果将被分析，以推断重力场相关参数和南极冰盖边缘区域表面高度的信息。与 ANTHALO-BI 任务提案直接相关的四项具体研究提案涉及有关调查南极洲冰盖、大气和潜在场的各种详细科学问题。