加那利岛长基线天文台的光谱观测:校准和数据集

IF 1.8 4区 地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY Geoscientific Instrumentation Methods and Data Systems Pub Date : 2023-05-04 DOI:10.5194/gi-12-91-2023
J. Zender, D. Koschny, R. Rudawska, Salvatore Vicinanza, S. Loehle, Martin F. Eberhart, A. Meindl, H. Smit, L. Marraffa, Rico Landman, D. Stam
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引用次数: 0

摘要

摘要加那利岛长基线天文台(CILBO)是一个位于加那利群岛的双站流星相机,自2010年以来由欧空局的流星研究小组运营。流星的观测是通过两个观测站的增强型摄像机在视觉波段获得的,并辅以在其中一个位置安装有光谱光栅的增强型视频摄像机。这些相机在无云和无降水的夜晚进行观测,数据每天传输一次到位于欧空局/欧洲经委会的主计算机。包含光谱信息的图像帧被校准、校正,并最终被处理成线强度轮廓。基于贝叶斯统计,使用马尔可夫链蒙特卡罗方法进行消融模拟,可以确定参数空间,包括消融温度、化学元素及其相应的线强度,以与观测到的流星光谱的线强度剖面相匹配。文中给出了该算法,并举例说明。已经处理了数百个光谱,并通过欧空局行星科学档案馆的访客档案设施提供。解释了数据格式和元数据。
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Spectral observations at the Canary Island Long-Baseline Observatory (CILBO): calibration and datasets
Abstract. The Canary Island Long-Baseline Observatory (CILBO) is a double-station meteor camera setup located on the Canary Islands operated by ESA's Meteor Research Group since 2010. Observations of meteors are obtained in the visual wavelength band by intensified video cameras from both stations, supplemented by an intensified video camera mounted with a spectral grating at one of the locations. The cameras observe during cloudless and precipitation-free nights, and data are transferred to a main computer located at ESA/ESTEC once a day. The image frames that contain spectral information are calibrated, corrected, and finally processed into line intensity profiles. An ablation simulation, based on Bayesian statistics using a Markov chain Monte Carlo method, allows determining a parameter space, including the ablation temperatures, chemical elements, and their corresponding line intensities, to fit against the line intensity profiles of the observed meteor spectra. The algorithm is presented in this paper and one example is discussed. Several hundred spectra have been processed and made available through the Guest Archive Facility of the Planetary Science Archive of ESA. The data format and metadata are explained.
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来源期刊
Geoscientific Instrumentation Methods and Data Systems
Geoscientific Instrumentation Methods and Data Systems GEOSCIENCES, MULTIDISCIPLINARYMETEOROLOGY-METEOROLOGY & ATMOSPHERIC SCIENCES
CiteScore
3.70
自引率
0.00%
发文量
23
审稿时长
37 weeks
期刊介绍: Geoscientific Instrumentation, Methods and Data Systems (GI) is an open-access interdisciplinary electronic journal for swift publication of original articles and short communications in the area of geoscientific instruments. It covers three main areas: (i) atmospheric and geospace sciences, (ii) earth science, and (iii) ocean science. A unique feature of the journal is the emphasis on synergy between science and technology that facilitates advances in GI. These advances include but are not limited to the following: concepts, design, and description of instrumentation and data systems; retrieval techniques of scientific products from measurements; calibration and data quality assessment; uncertainty in measurements; newly developed and planned research platforms and community instrumentation capabilities; major national and international field campaigns and observational research programs; new observational strategies to address societal needs in areas such as monitoring climate change and preventing natural disasters; networking of instruments for enhancing high temporal and spatial resolution of observations. GI has an innovative two-stage publication process involving the scientific discussion forum Geoscientific Instrumentation, Methods and Data Systems Discussions (GID), which has been designed to do the following: foster scientific discussion; maximize the effectiveness and transparency of scientific quality assurance; enable rapid publication; make scientific publications freely accessible.
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