Articles | Volume 18, issue 5
https://doi.org/10.5194/essd-18-3559-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-18-3559-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Data description article
| 
26 May 2026
Data description article |
| 26 May 2026
| 26 May 2026
A dataset of vertical profiles of O3 and HONO from the hyperspectral vertical remote sensing network in China (2021–2024)
Tiliang Zou
School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei 230026, China
Key Lab of Environmental Optics & Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
Xiangguang Ji
State Key Laboratory of Opto-Electronic Information Acquisition and Protection Technology, Anhui University, Hefei, 230601, China
Information Materials and Intelligent Sensing Laboratory of Anhui Province, Anhui University, Hefei, Anhui, 230601, China
Shaocong Wei
Institute of Environment Hefei Comprehensive National Science Center, Hefei, 230031, China
Wei Tan
Key Lab of Environmental Optics & Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
Haoran Liu
Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, China
Key Lab of Environmental Optics & Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, China
Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China
Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, 230026, China
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Boundary-layer "relay oxidation" revealed: HCHO/HONO drive OH <1 km; O₃ dominates >2.8 km (>74 %). Urban OH shifts spring HONO (4.43×10⁻⁴) to summer HCHO (5.22×10⁻⁴); rural stays HCHO-dominated (1.82×10⁻³). Summer urban HONO peaks ~2.4 km (~30.6 % OH, C=0.053 h⁻¹). Rural C(HONO) highest surface (0.1 h⁻¹), drops fast. Neglecting verticality underestimates O₃/SOA. High-altitude oxidation limits NOₓ control efficacy, demanding 3D strategies.
Tiliang Zou, Chengzhi Xing, Zhijian Tang, Yikai Li, Zhenyi Chen, Xiao Liang, Wei Tan, and Cheng Liu
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This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
Short summary
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Boundary-layer "relay oxidation" revealed: HCHO/HONO drive OH <1 km; O₃ dominates >2.8 km (>74 %). Urban OH shifts spring HONO (4.43×10⁻⁴) to summer HCHO (5.22×10⁻⁴); rural stays HCHO-dominated (1.82×10⁻³). Summer urban HONO peaks ~2.4 km (~30.6 % OH, C=0.053 h⁻¹). Rural C(HONO) highest surface (0.1 h⁻¹), drops fast. Neglecting verticality underestimates O₃/SOA. High-altitude oxidation limits NOₓ control efficacy, demanding 3D strategies.
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Short summary
Here we present vertical profile measurements of HONO (Nitrous acid) and O3 acquired by the Chinese Hyperspectral Vertical Remote Sensing Network during 2021–2024. The dataset comprises 22 representative sites spanning urban, suburban, plateau, and basin environments, covering diverse surface and climatic regimes.
Here we present vertical profile measurements of HONO (Nitrous acid) and O3 acquired by the...
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