XCO2-measurements with a tabletop FTS using solar absorption spectroscopy
XCO2-measurements with a tabletop FTS using solar absorption spectroscopy
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DOI：
10.5194/amt-5-2969-2012
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发表时间：
2012-01-01
影响因子：
3.8
通讯作者：
Keens, A.
中科院分区：
文献类型：
--
作者：
Gisi, M.;Hase, F.;Keens, A.
对一台商用低分辨率（0.5 cm（-1））傅里叶变换光谱仪（FTS）进行了改装，并用于通过分析太阳直接辐射来确定大气层中的总柱XCO 2。光谱仪有一个小型的自制太阳跟踪器，因此它是一个随时可用的仪器。利用高分辨率总碳柱观测网络（TCCON）FTIR光谱仪进行时间上一致的现场测量，验证了结果。对于5个月的整个比较期（26个测量日），实现了与TCCON结果的（0.12 +/- 0.08）%一致。这使得该光谱仪成为TCCON核心FTIR站点低成本添加的有希望的候选者，特别适合基础设施有限的地点。令人印象深刻的机械和热稳定性被证明，使光谱仪用于实地活动和监测当地的来源。
A commercial low-resolution (0.5 cm(-1)) Fourier Transform Spectrometer (FTS) has been modified and is used for determining the total column XCO2 of the atmosphere by analysing direct solar radiation. The spectrometer has a small home-built solar tracker attached, so that it is a ready-to-use instrument. The results are validated with temporally coinciding on-site measurements taken with a high-resolution Total Carbon Column Observing Network (TCCON) FTIR spectrometer. For the whole comparison period of 5 months (26 measurement days) an agreement with TCCON results of (0.12 +/- 0.08)% is achieved. This makes the spectrometer a promising candidate for a low-cost addition to the TCCON core FTIR sites, especially suitable for locations with limited infrastructure. An impressive mechanical and thermal stability is proved, enabling the spectrometer for use in field campaigns and for the monitoring of local sources.