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MEDUSA: The ExoMars experiment for in-situ monitoring of dust and water vapour

机译:MEDUSA:ExoMars实验用于粉尘和水蒸气的原位监测

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摘要

Dust and water vapour are fundamental components of the Martian atmosphere. In view of tracing the past environmental conditions on Mars, that possibly favoured the appearing of life forms, it is important to study the present climate and its evolution. Here dust and water vapour have (and have had) strong influence. Of major scientific interest is the quantity and physical, chemical and electrical properties of dust and the abundance of water vapour dispersed in the atmosphere and their exchange with the surface. Moreover, in view of the exploration of the planet with automated systems and in the future by manned missions, it is of primary importance to analyse the hazards linked to these environmental factors. The Martian Environmental Dust Systematic Analyser (MEDUSA) experiment, included in the scientific payload of the ESA ExoMars mission, accommodates a complement of sensors, based on optical detection and cumulative mass deposition, that aims to study dust and water vapour in the lower Martian atmosphere. The goals are to study, for the first time, in-situ and quantitatively, physical properties of the airborne dust, including the cumulative dust mass flux, the dust deposition rate, the physical and electrification properties, the size distribution of sampled particles and the atmospheric water vapour abundance versus time.
机译:灰尘和水蒸气是火星大气层的基本组成部分。考虑到火星过去的环境条件,可能有利于生命形式的出现,研究当前的气候及其演变过程很重要。在这里,灰尘和水蒸气具有(并且已经产生)强烈的影响。具有重大科学意义的是粉尘的数量,物理,化学和电学性质以及大量的水蒸气散布在大气中以及它们与地面的交换。此外,鉴于使用自动化系统对行星的探索以及未来有人值守任务的探索,分析与这些环境因素相关的危害至关重要。 ESA ExoMars任务的科学有效载荷中包括了火星环境尘埃系统分析器(MEDUSA)实验,该实验装置基于光学检测和累积质量沉积,可容纳一系列传感器,旨在研究低火星大气中的尘埃和水蒸气。目标是首次就地和定量地研究空气中粉尘的物理特性,包括累积粉尘质量通量,粉尘沉积速率,物理和带电特性,采样颗粒的尺寸分布以及大气中水蒸气的丰度与时间的关系。

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  • 来源
    《Planetary and space science》 |2009年第9期|1043-1049|共7页
  • 作者单位

    INAF-Osservatorio Astronomico di Capodimonte, Via Moiariello 16, 80131 Napoli, Italy;

    Institute de Astrofisica de Andalucia CSIC, Camino Bajo de Huetor 24, 19008 Granada, Spain;

    Mars Simulation Laboratory, Institute for Physics and Astronomy, Nye Munkegade byg. 520, Aarhus 8000C, Denmark;

    INAF-Osservatorio Astronomico di Capodimonte, Via Moiariello 16, 80131 Napoli, Italy Dipartimento di Scienze Applicate, Universita degli Studi di Napoli 'Parthenope', Centro Direzionale, Isola C4, 80143 Napoli, Italy;

    INAF-Osservatorio Astronomico di Capodimonte, Via Moiariello 16, 80131 Napoli, Italy;

    INAF-Osservatorio Astronomico di Capodimonte, Via Moiariello 16, 80131 Napoli, Italy;

    Mars Simulation Laboratory, Institute for Physics and Astronomy, Nye Munkegade byg. 520, Aarhus 8000C, Denmark;

    INAF-VSTCeN, Via Moiariello 16, 80131 Napoli. Italy;

    Dipartimento di Scienze Applicate, Universita degli Studi di Napoli 'Parthenope', Centro Direzionale, Isola C4, 80143 Napoli, Italy;

    Institute de Astrofisica de Andalucia CSIC, Camino Bajo de Huetor 24, 19008 Granada, Spain;

    Dipartimento di Scienze Applicate, Universita degli Studi di Napoli 'Parthenope', Centro Direzionale, Isola C4, 80143 Napoli, Italy;

    Department of Physics, University of L'Aquila, Via Vetoio, 67010 Coppito (L'Aquila), Italy;

    Planetary and Space Sciences Research Institute, The Open University, Walton Hall, Milton Keynes MK7 6AA, UK;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    ExoMars mission; MEDUSA experiment; dust and water vapour;

    机译:ExoMars任务;MEDUSA实验;灰尘和水蒸气;

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