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首页> 美国卫生研究院文献>Sensors (Basel Switzerland) >Atmospheric Measurements by Ultra-Light SpEctrometer (AMULSE) Dedicated to Vertical Profile in Situ Measurements of Carbon Dioxide (CO2) Under Weather Balloons: Instrumental Development and Field Application
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Atmospheric Measurements by Ultra-Light SpEctrometer (AMULSE) Dedicated to Vertical Profile in Situ Measurements of Carbon Dioxide (CO2) Under Weather Balloons: Instrumental Development and Field Application

机译：通过超轻型散射仪（AMULSE）进行大气测量用于在气球下垂直测量二氧化碳（CO2）的垂直轮廓：仪器开发和现场应用

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The concentration of greenhouse gases in the atmosphere plays an important role in the radiative effects in the Earth’s climate system. Therefore, it is crucial to increase the number of atmospheric observations in order to quantify the natural sinks and emission sources. We report in this paper the development of a new compact lightweight spectrometer (1.8 kg) called AMULSE based on near infrared laser technology at 2.04 µm coupled to a 6-m open-path multipass cell. The measurements were made using the Wavelength Modulation Spectroscopy (WMS) technique and the spectrometer is hence dedicated to in situ measuring the vertical profiles of the CO2 at high precision levels (σAllan = 0.96 ppm in 1 s integration time (1σ)) and with high temporal/spatial resolution (1 Hz/5 m) using meteorological balloons. The instrument is compact, robust, cost-effective, fully autonomous, has low-power consumption, a non-intrusive probe and is plug & play. It was first calibrated and validated in the laboratory and then used for 17 successful flights up to 10 km altitude in the region Champagne—Ardenne, France in 2014. A rate of 100% of instrument recovery was validated due to the pre-localization prediction of the Météo—France based on the flight simulation software.
机译：大气中温室气体的浓度在地球气候系统的辐射效应中起着重要作用。因此，增加大气观测的数量以量化自然汇和排放源至关重要。我们在本文中报告了一种新的紧凑型轻质光谱仪（1.8 kg）的开发，该光谱仪基于2.04 µm的近红外激光技术与6米的开放路径多通单元相结合。测量是使用波长调制光谱（WMS）技术进行的，因此该光谱仪专用于以高精度水平（σAllan= 0.96 ppm in 1 s积分时间（1σ））并以高水平进行CO2垂直剖面的现场测量。使用气象气球的时间/空间分辨率（1 Hz / 5 m）。该仪器结构紧凑，坚固耐用，经济高效，完全自动化，具有低功耗，非侵入式探头且即插即用。它首先在实验室中进行了校准和验证，然后于2014年在法国Champagne-Ardenne地区成功进行了17次成功的飞行，飞行高度最高为10 km。由于对仪器进行了预先本地化的预测，因此可以达到100％的仪器回收率基于飞行模拟软件的Météo-France。

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