SEIS：洞察号火星内部结构地震实验。
SEIS: Insight's Seismic Experiment for Internal Structure of Mars.
作者信息
Lognonné P, Banerdt W B, Giardini D, Pike W T, Christensen U, Laudet P, de Raucourt S, Zweifel P, Calcutt S, Bierwirth M, Hurst K J, Ijpelaan F, Umland J W, Llorca-Cejudo R, Larson S A, Garcia R F, Kedar S, Knapmeyer-Endrun B, Mimoun D, Mocquet A, Panning M P, Weber R C, Sylvestre-Baron A, Pont G, Verdier N, Kerjean L, Facto L J, Gharakanian V, Feldman J E, Hoffman T L, Klein D B, Klein K, Onufer N P, Paredes-Garcia J, Petkov M P, Willis J R, Smrekar S E, Drilleau M, Gabsi T, Nebut T, Robert O, Tillier S, Moreau C, Parise M, Aveni G, Ben Charef S, Bennour Y, Camus T, Dandonneau P A, Desfoux C, Lecomte B, Pot O, Revuz P, Mance D, tenPierick J, Bowles N E, Charalambous C, Delahunty A K, Hurley J, Irshad R, Liu Huafeng, Mukherjee A G, Standley I M, Stott A E, Temple J, Warren T, Eberhardt M, Kramer A, Kühne W, Miettinen E-P, Monecke M, Aicardi C, André M, Baroukh J, Borrien A, Bouisset A, Boutte P, Brethomé K, Brysbaert C, Carlier T, Deleuze M, Desmarres J M, Dilhan D, Doucet C, Faye D, Faye-Refalo N, Gonzalez R, Imbert C, Larigauderie C, Locatelli E, Luno L, Meyer J-R, Mialhe F, Mouret J M, Nonon M, Pahn Y, Paillet A, Pasquier P, Perez G, Perez R, Perrin L, Pouilloux B, Rosak A, Savin de Larclause I, Sicre J, Sodki M, Toulemont N, Vella B, Yana C, Alibay F, Avalos O M, Balzer M A, Bhandari P, Blanco E, Bone B D, Bousman J C, Bruneau P, Calef F J, Calvet R J, D'Agostino S A, de Los Santos G, Deen R G, Denise R W, Ervin J, Ferraro N W, Gengl H E, Grinblat F, Hernandez D, Hetzel M, Johnson M E, Khachikyan L, Lin J Y, Madzunkov S M, Marshall S L, Mikellides I G, Miller E A, Raff W, Singer J E, Sunday C M, Villalvazo J F, Wallace M C, Banfield D, Rodriguez-Manfredi J A, Russell C T, Trebi-Ollennu A, Maki J N, Beucler E, Böse M, Bonjour C, Berenguer J L, Ceylan S, Clinton J, Conejero V, Daubar I, Dehant V, Delage P, Euchner F, Estève I, Fayon L, Ferraioli L, Johnson C L, Gagnepain-Beyneix J, Golombek M, Khan A, Kawamura T, Kenda B, Labrot P, Murdoch N, Pardo C, Perrin C, Pou L, Sauron A, Savoie D, Stähler S, Stutzmann E, Teanby N A, Tromp J, van Driel M, Wieczorek M, Widmer-Schnidrig R, Wookey J
机构信息
1Institut de Physique du Globe de Paris-Sorbonne Paris Cité, Université Paris Diderot (UMR 7154 CNRS), Planetology et Space Science Team, 35 Rue Hélène Brion, Paris, 75013 France.
2Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA.
出版信息
Space Sci Rev. 2019;215(1):12. doi: 10.1007/s11214-018-0574-6. Epub 2019 Jan 28.
UNLABELLED
By the end of 2018, 42 years after the landing of the two Viking seismometers on Mars, InSight will deploy onto Mars' surface the SEIS (eismic xperiment for nternal tructure) instrument; a six-axes seismometer equipped with both a long-period three-axes Very Broad Band (VBB) instrument and a three-axes short-period (SP) instrument. These six sensors will cover a broad range of the seismic bandwidth, from 0.01 Hz to 50 Hz, with possible extension to longer periods. Data will be transmitted in the form of three continuous VBB components at 2 sample per second (sps), an estimation of the short period energy content from the SP at 1 sps and a continuous compound VBB/SP vertical axis at 10 sps. The continuous streams will be augmented by requested event data with sample rates from 20 to 100 sps. SEIS will improve upon the existing resolution of Viking's Mars seismic monitoring by a factor of at 1 Hz and at 0.1 Hz. An additional major improvement is that, contrary to Viking, the seismometers will be deployed via a robotic arm directly onto Mars' surface and will be protected against temperature and wind by highly efficient thermal and wind shielding. Based on existing knowledge of Mars, it is reasonable to infer a moment magnitude detection threshold of at epicentral distance and a potential to detect several tens of quakes and about five impacts per year. In this paper, we first describe the science goals of the experiment and the rationale used to define its requirements. We then provide a detailed description of the hardware, from the sensors to the deployment system and associated performance, including transfer functions of the seismic sensors and temperature sensors. We conclude by describing the experiment ground segment, including data processing services, outreach and education networks and provide a description of the format to be used for future data distribution.
ELECTRONIC SUPPLEMENTARY MATERIAL
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未标注
到2018年底，在“海盗号”的两台地震仪登陆火星42年后，“洞察号”将在火星表面部署地震内部结构探测仪（SEIS）；这是一台六轴地震仪，配备了一个长周期三轴甚宽带（VBB）仪器和一个三轴短周期（SP）仪器。这六个传感器将覆盖从0.01赫兹到50赫兹的广泛地震带宽，可能会扩展到更长周期。数据将以每秒2个样本（sps）的三个连续VBB分量的形式传输，每秒1个样本的SP对短周期能量含量的估计，以及每秒10个样本的连续复合VBB/SP垂直轴数据。连续数据流将通过每秒20至100个样本速率的请求事件数据得到增强。SEIS将把“海盗号”火星地震监测的现有分辨率在1赫兹时提高 倍，在0.1赫兹时提高 倍。另一个主要改进是，与“海盗号”不同，地震仪将通过机械臂直接部署到火星表面，并将通过高效的热屏蔽和风屏蔽来抵御温度和风的影响。根据对火星的现有了解，合理推断震中距离为 时矩震级检测阈值，以及每年检测几十次地震和大约五次撞击的潜力。在本文中，我们首先描述实验的科学目标以及用于定义其要求的基本原理。然后，我们详细描述硬件，从传感器到部署系统以及相关性能，包括地震传感器和温度传感器的传递函数。最后，我们描述实验地面部分，包括数据处理服务、推广和教育网络，并提供未来数据分发将使用的格式说明。
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