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Three years of MAX-DOAS observations of glyoxal and formaldehyde in Thessaloniki, Greece

Atmospheric Environment
Dimitrios Nikolis, Dimitris Karagkiozidis, Alkiviadis Bais   +2 more
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Combined measurements of a UV mini MAX-DOAS system and a TX for retrieval of ambient trace gas mixing ratio: Comparisons with combined RTM and MAX-DOAS methods

Atmospheric Environment, 2011
Abstract A measurement method combining multi-axis differential optical absorption spectroscopy (MAX-DOAS) and a transmissometer (TX) is introduced as a means of retrieving surface trace gas mixing ratios in ambient air. The combined measurement method was utilized to derive surface NO2 mixing ratios from 27 March to 11 May 2007 in Seoul, Korea.
Jhoon Kim, Hanlim Lee, Youngmin Noh
exaly   +2 more sources

MAX-DOAS Network in China and Its Applications

2023
Entering the “14th Five-Year Plan”, the coordinated control of PM2.5 and O3 has become a major issue of air pollution prevention and control in China. In order to achieve this goal, the stereoscopic monitoring of regional PM2.5 and O3 and their precursors (NO2, HCHO etc.) is extremely necessary.
Haoran Liu, Cheng Liu, Chengzhi Xing, Qihou Hu, Wei Tan, Xiangguang Ji   +5 more
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Development of a versatile portable MAX-DOAS instrument

2020
<p>Multi-AXis Differential Optical Absorption Spectroscopy has become a versatile and mature measurement technique for determining various components of the Earth’s atmosphere, e.g. O<sub>3</sub>, SO<sub>2</sub>, NO<sub>2</sub&gt ...
Wolfgang Kausch, Stefan Kimeswenger, Norbert Przybilla, Stefan Noll   +3 more
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Source analysis of the tropospheric NO2 based on MAX-DOAS measurements in northeastern China

Environmental Pollution, 2022
Ground-based Multi-Axis Differential Optical Absorption Spectroscopy (Max-DOAS) measurements of nitrogen dioxide (NO2) were continuously obtained from January to November 2019 in northeastern China (NEC). Seasonal variations in the mean NO2 vertical column densities (VCDs) were apparent, with a maximum of 2.9 × 1016 molecules cm-2 in the winter due to ...
Feng Liu, Chengzhi Xing, Pinjie Su, Yifu Luo, Ting Zhao, Jiexiao Xue, Guohui Zhang, Sida Qin, Youtao Song, Naishun Bu   +9 more
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Validation of a MAX-DOAS instrument-based cloud classification algorithm

2023
A major challenge in Differential Optical Absorption Spectroscopy (DOAS) is the characterization of the light path. For the determination of the light path length, cloud conditions are essential. While instruments like a LIDAR/ceilometer provide information on cloud base height in zenith direction, it is often quite challenging to obtain information on
Lucas Reischmann, Steffen Ziegler, Steffen Beirle, Vinod Kumar, Sebastian Donner, Thomas Wagner   +5 more
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Evaluation and measurement of tropospheric glyoxal retrieved from MAX-DOAS in Shenzhen, China

Science of The Total Environment, 2023
Glyoxal is one of the representative oxygenated volatile organic compounds in the atmosphere. Its accurate measurement has high significance for the determination of VOC emission sources and the calculation of the global budget of secondary organic aerosol.
Hairong, Zhang, Ang, Li, Zhaokun, Hu, Jianfeng, Guo, Long, Yun, Mingdi, Zhang, Hongmei, Ren, Hongyan, Zhong, Jiangman, Xu   +8 more
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Towards tomographical MAX DOAS profile retrieval:  sensitivity studies

2023
The ground-based Multiple Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) measurement technique is of high interest to measure local scale pollution events like trace gas plumes above cities or power plants. Besides vertical column densities and especially for the comparison with in-situ measurements and model simulations, vertical ...
Janis Pukite, Steffen Beirle, Sebastian Donner, Bianca Lauster, Simona Ripperger-Lukosiunaite, Steffen Ziegler, Thomas Wagner   +6 more
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[MAX-DOAS Tomography Reconstruction for Gas Plume].

Guang pu xue yu guang pu fen xi = Guang pu, 2015
In order to achieve precisely two-dimensional spatial distribution reconstruction of smoke plume, passive MAX-DOAS tomography is established, the measurement of the spatial distribution of the exhaust plume is implemented by more passive multi-axis differential absorption spectrum system.
Min-hong, Wei, Min-ming, Tong, Su-wen, Li, Jian-yu, Xiao   +3 more
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Ground-based MAX-DOAS observations of formaldehyde and glyoxal in Xishuangbanna, China

Journal of Environmental Sciences
Multi-axial differential optical absorption spectroscopy (MAX-DOAS) measurements were conducted in Xishuangbanna, Yunnan, China, between November 1, 2021 and June 30, 2022 to obtain vertical distributions of formaldehyde (HCHO) and glyoxal (CHOCHO). The observations show an increase in vertical column densities (VCDs) and volume mixing ratios (VMRs ...
Yu Zhang, Xingwei Man, Sanbao Zhang, Li Liu, Fanhao Kong, Tao Feng, Rui Liu   +6 more
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