Preprints
https://doi.org/10.5194/essd-2021-195
https://doi.org/10.5194/essd-2021-195

  21 Jun 2021

21 Jun 2021

Review status: this preprint is currently under review for the journal ESSD.

Ground-based vertical profile observations of atmospheric composition on the Tibetan Plateau (2017–2019)

Chengzhi Xing1, Cheng Liu2,1,3,5,6, Hongyu Wu1, Jinan Lin1, Shuntian Wang1, and Meng Gao4,7 Chengzhi Xing et al.
  • 1Key Lab of Environmental Optics & Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
  • 2Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China
  • 3Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
  • 4Department of Geography, State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, Hong Kong SAR, China
  • 5Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, 230026, China
  • 6Anhui Province Key Laboratory of Polar Environment and Global Change, University of Science and Technology of China, Hefei, 230026, China
  • 7Hong Kong Branch of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Hong Kong, China

Abstract. The Tibet Plateau (TP) plays an essential role in modulating regional and global climate, and its influence on climate is affected also by human-related processes, including changes in atmospheric composition. However, observations of atmospheric composition, especially vertical profile observations, remain sparse and rare on the TP, due to extremely high altitude, topographical heterogeneity and grinding environment. Accordingly, the forcing and feedback of atmospheric composition from rapidly changing surrounding regions to regional environmental and climate change in the TP remains poorly understood. This paper introduces a high time-resolution (~15 min) vertical profile observational dataset of atmospheric composition (aerosol, NO2, HCHO and HONO) on the TP for more than one year (2017–2019) using a passive remote sensing technique. The diurnal pattern, vertical distribution and seasonal variations of these pollutants are documented here in detail. The sharing of this dataset would benefit scientific community in exploring source-receptor relationships, forcing and feedback of atmospheric composition on the TP to regional and global climate. It also provides potentials to improve satellite retrievals, and to facilitate the development and improvement of models in cold regions. The dataset is freely available at Zenodo (http://doi.org/10.5281/zenodo.4911384; Xing et al., 2021). 

Chengzhi Xing et al.

Status: open (until 31 Aug 2021)

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Chengzhi Xing et al.

Data sets

Ground-based vertical observations of atmospheric composition from field campaign on the Tibetan Plateau Xing, C. https://doi.org/10.5281/zenodo.4911384

Chengzhi Xing et al.

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Short summary
Observations of atmospheric composition, especially vertical profile observations, remain sparse and rare on the TP, due to extremely high altitude, topographical heterogeneity and grinding environment. This paper introduces a high time-resolution (~15 min) vertical profile observational dataset of atmospheric composition (aerosol, NO2, HCHO and HONO) on the TP for more than one year (2017–2019) using a passive remote sensing technique.