Volume 26, issue 4

17 Feb 2026

Decadal transition of summertime PM_2.5–O₃ coupling and secondary organic aerosol dominance in northwest China

Wei Zhou, Liu Yang, Siqi Zeng, Yunping Kan, Lirong Yang, Weihong Zhang, Weijie Wang, Zijun Zhang, Yan Li, Weiqi Xu, Yucheng Gu, Yaozong Wang, Zhengyan Zuo, Jie Li, Zifa Wang, and Yele Sun

Atmos. Chem. Phys., 26, 2425–2441, https://doi.org/10.5194/acp-26-2425-2026,https://doi.org/10.5194/acp-26-2425-2026, 2026

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17 Feb 2026

Photochemical and ozone-induced aging significantly alter the viscosity of aqueous trans-aconitic acid aerosol particles

Cynthia Antossian, Marcel Müller, and Ulrich K. Krieger

Atmos. Chem. Phys., 26, 2443–2463, https://doi.org/10.5194/acp-26-2443-2026,https://doi.org/10.5194/acp-26-2443-2026, 2026

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17 Feb 2026

Low and consistent asymmetry parameters in Arctic and mid-latitude cirrus

Emma Järvinen and Franz Martin Schnaiter

Atmos. Chem. Phys., 26, 2465–2486, https://doi.org/10.5194/acp-26-2465-2026,https://doi.org/10.5194/acp-26-2465-2026, 2026

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17 Feb 2026

Detection of potential structural deficiencies in a global aerosol model using a perturbed parameter ensemble

Léa M. C. Prévost, Leighton A. Regayre, Jill S. Johnson, Doug McNeall, Sean Milton, and Kenneth S. Carslaw

Atmos. Chem. Phys., 26, 2487–2530, https://doi.org/10.5194/acp-26-2487-2026,https://doi.org/10.5194/acp-26-2487-2026, 2026

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17 Feb 2026

Ground-based observations of periodic temperature fluctuations in the mesopause region with periods longer than 2 d

Christoph Kalicinsky, Robert Reisch, and Peter Knieling

Atmos. Chem. Phys., 26, 2531–2544, https://doi.org/10.5194/acp-26-2531-2026,https://doi.org/10.5194/acp-26-2531-2026, 2026

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18 Feb 2026

Quantifying the driving factors of particulate matter variabilities in the Beijing-Tianjin-Hebei and Yangtze River Delta regions from 2015 to 2022 by machine learning approach

Zhongfeng Pan, Hao Yin, Zhenda Sun, Chongyang Li, Youwen Sun, and Cheng Liu

Atmos. Chem. Phys., 26, 2545–2559, https://doi.org/10.5194/acp-26-2545-2026,https://doi.org/10.5194/acp-26-2545-2026, 2026

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18 Feb 2026

Constraining a data-driven CO₂ flux model by ecosystem and atmospheric observations using atmospheric transport

Samuel Upton, Markus Reichstein, Wouter Peters, Santiago Botía, Jacob A. Nelson, Sophia Walther, Martin Jung, Fabian Gans, László Haszpra, and Ana Bastos

Atmos. Chem. Phys., 26, 2561–2595, https://doi.org/10.5194/acp-26-2561-2026,https://doi.org/10.5194/acp-26-2561-2026, 2026

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18 Feb 2026

Heat and continental transport shape the variability of volatile organic compounds in the Eastern Mediterranean: insights from multi-year observations and regional modeling

Anchal Garg, Maximilien Desservettaz, Aliki Christodoulou, Theodoros Christoudias, Vijay Punjaji Kanawade, Chrysanthos Savvides, Mihalis Vrekoussis, Shahid Naqui, Tuija Jokinen, Joseph Byron, Jonathan Williams, Nikos Mihalopoulos, Eleni Liakakou, Jean Sciare, and Efstratios Bourtsoukidis

Atmos. Chem. Phys., 26, 2597–2622, https://doi.org/10.5194/acp-26-2597-2026,https://doi.org/10.5194/acp-26-2597-2026, 2026

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18 Feb 2026

Large and increasing stratospheric contribution to tropospheric ozone over East Asia

Nadia K. Colombi, Daniel J. Jacob, Xingpei Ye, Robert M. Yantosca, Kelvin H. Bates, Drew C. Pendergrass, Laura Hyesung Yang, Ke Li, and Hong Liao

Atmos. Chem. Phys., 26, 2623–2633, https://doi.org/10.5194/acp-26-2623-2026,https://doi.org/10.5194/acp-26-2623-2026, 2026

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19 Feb 2026

Growing role of secondary organic aerosol in the North China Plain from 2014 to 2024

Chunshui Lin, Ru-Jin Huang, Jing Duan, Jing Qu, Jiahua Liu, Yi Liu, Yan Luo, Wei Huang, Wei Xu, Yanan Zhan, Zhitao Liu, Sihan Liu, Qingshuang Zhang, Quan Liu, Zirui Liu, Shengrong Lou, Huinan Yang, Dan Dan Huang, Cheng Huang, and Hongli Wang

Atmos. Chem. Phys., 26, 2635–2647, https://doi.org/10.5194/acp-26-2635-2026,https://doi.org/10.5194/acp-26-2635-2026, 2026

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19 Feb 2026

Uncertainties of SAI efficiency and impacts depending on the complexity of the aerosol microphysical model

Simone Tilmes, Daniele Visioni, Ilaria Quaglia, Yunqian Zhu, Charles G. Bardeen, Francis Vitt, and Pengfei Yu

Atmos. Chem. Phys., 26, 2649–2666, https://doi.org/10.5194/acp-26-2649-2026,https://doi.org/10.5194/acp-26-2649-2026, 2026

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19 Feb 2026

Implementation of primary and secondary ice production in EC-Earth3-AerChem: global impacts and insights

Montserrat Costa-Surós, María Gonçalves Ageitos, Marios Chatziparaschos, Paraskevi Georgakaki, Manu Anna Thomas, Gilbert Montané Pinto, Stelios Myriokefalitakis, Twan van Noije, Philippe Le Sager, Maria Kanakidou, Athanasios Nenes, and Carlos Pérez García-Pando

Atmos. Chem. Phys., 26, 2667–2690, https://doi.org/10.5194/acp-26-2667-2026,https://doi.org/10.5194/acp-26-2667-2026, 2026

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20 Feb 2026

Tropical tropopause ozone modulated by tropopause height

Stephen Bourguet

Atmos. Chem. Phys., 26, 2691–2706, https://doi.org/10.5194/acp-26-2691-2026,https://doi.org/10.5194/acp-26-2691-2026, 2026

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20 Feb 2026

Experimental Determination of the Global Warming Potential of Carbonyl Fluoride (COF₂)

Dongkyum Kim, Hyeon Ki Park, and Jeongsoon Lee

Atmos. Chem. Phys., 26, 2707–2719, https://doi.org/10.5194/acp-26-2707-2026,https://doi.org/10.5194/acp-26-2707-2026, 2026

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24 Feb 2026

Diurnal and Seasonal Variations of Dust Transport around the Tibetan Plateau: Insights from Multi-Source Observations

Xiaofeng Xu, Zixu Xiong, Jianming Gong, Huilin Zhang, Tianliang Zhao, and Qing He

Atmos. Chem. Phys., 26, 2721–2740, https://doi.org/10.5194/acp-26-2721-2026,https://doi.org/10.5194/acp-26-2721-2026, 2026

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24 Feb 2026

Advancements and continued challenges in observations and global modelling of atmospheric ice mass

Patrick Eriksson, Alejandro Baró Pérez, Nils Müller, Hanna Hallborn, Eleanor May, Manfred Brath, Stefan A. Buehler, and Luisa Ickes

Atmos. Chem. Phys., 26, 2741–2768, https://doi.org/10.5194/acp-26-2741-2026,https://doi.org/10.5194/acp-26-2741-2026, 2026

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24 Feb 2026

Process-level simulation of chemical composition, size distribution and cloud condensation nuclei of secondary organic aerosol from α-pinene ozonolysis

Zhen Song, Chenqi Zhang, Hongru Shen, Hao Ma, Iida Pullinen, and Defeng Zhao

Atmos. Chem. Phys., 26, 2769–2784, https://doi.org/10.5194/acp-26-2769-2026,https://doi.org/10.5194/acp-26-2769-2026, 2026

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24 Feb 2026

Understanding divergent brown carbon photobleaching rates from molecular perspective

Yanting Qiu, Tao Qiu, Yuechen Liu, Yu Gu, Ruiqi Man, Dapeng Liang, Taomou Zong, Zhijun Wu, and Min Hu

Atmos. Chem. Phys., 26, 2785–2796, https://doi.org/10.5194/acp-26-2785-2026,https://doi.org/10.5194/acp-26-2785-2026, 2026

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24 Feb 2026

Gas-particle partitioning of pesticides in the atmosphere of the North China Plain

Liping Guo, Shuping Shi, Ying Li, Martin Brüggemann, Mingyu Zhao, Hongyu Mu, Daniel M. Figueiredo, Junxue Wu, and Kai Wang

Atmos. Chem. Phys., 26, 2797–2811, https://doi.org/10.5194/acp-26-2797-2026,https://doi.org/10.5194/acp-26-2797-2026, 2026

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25 Feb 2026

Molecular composition and processing of aqueous secondary organic aerosol in clouds at a mountain site in southeastern China

Yali Jin, Hao Luo, Siqi Tang, Shuhui Xue, Chengyu Nie, Xiaocong Peng, Yan Zheng, Weiqi Xu, Guohua Zhang, Xiaole Pan, Yele Sun, Qi Chen, Lanzhong Liu, and Defeng Zhao

Atmos. Chem. Phys., 26, 2813–2830, https://doi.org/10.5194/acp-26-2813-2026,https://doi.org/10.5194/acp-26-2813-2026, 2026

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26 Feb 2026

Multi-site non-methane hydrocarbon source apportionment and ozone insights in Southern Taiwan using positive matrix factorization

Duy-Hieu Nguyen, Hsin-Cheng Hsieh, Mao-Chang Liang, Neng-Huei Lin, Chieh-Heng Wang, and Jia-Lin Wang

Atmos. Chem. Phys., 26, 2831–2852, https://doi.org/10.5194/acp-26-2831-2026,https://doi.org/10.5194/acp-26-2831-2026, 2026

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26 Feb 2026

Implications of Sea Breeze Circulations on boundary layer aerosols in the southern coastal Texas region

Tamanna Subba, Michael P. Jensen, Min Deng, Scott E. Giangrande, Mark C. Harvey, Ashish Singh, Die Wang, Maria Zawadowicz, and Chongai Kuang

Atmos. Chem. Phys., 26, 2853–2879, https://doi.org/10.5194/acp-26-2853-2026,https://doi.org/10.5194/acp-26-2853-2026, 2026

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26 Feb 2026

Effects of mass ratio heterogeneity and coating-related optical characteristics on the light absorption enhancement of black carbon-containing particles

Jing Wei, Jin-Mei Ding, Yao Song, Xiao-Yuan Wang, Xiang-Yu Pei, Sheng-Chen Xu, Fei Zhang, Zheng-Ning Xu, Xu-Dong Tian, Bing-Ye Xu, and Zhi-Bin Wang

Atmos. Chem. Phys., 26, 2881–2892, https://doi.org/10.5194/acp-26-2881-2026,https://doi.org/10.5194/acp-26-2881-2026, 2026

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26 Feb 2026

Measurement report: Emission factors and organic aerosol source apportionment of shipping emissions in the coastal city of Toulon, France

Quentin Gunti, Benjamin Chazeau, Brice Temime-Roussel, Irène Xueref-Remy, Alexandre Armengaud, Henri Wortham, and Barbara D'Anna

Atmos. Chem. Phys., 26, 2893–2919, https://doi.org/10.5194/acp-26-2893-2026,https://doi.org/10.5194/acp-26-2893-2026, 2026

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26 Feb 2026

High-resolution emission inventory development and co-emission hotspot identification of air pollutants and greenhouse gases in central plains region, China

Jie Li, Shasha Yin, Conghui Su, Jiaxin Wei, Mingyue Guan, and Chong Yu

Atmos. Chem. Phys., 26, 2921–2940, https://doi.org/10.5194/acp-26-2921-2026,https://doi.org/10.5194/acp-26-2921-2026, 2026

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26 Feb 2026

Surveying methane point-source super-emissions across oil and gas basins with MethaneSAT

Luis Guanter, Javier Roger, Jack Warren, Maryann Sargent, Zhan Zhang, Sébastien Roche, Christopher Chan Miller, Michael Steiner, Harvey Hadfield, Mark Omara, James Williams, Katlyn MacKay, Jonathan E. Franklin, Bingkun Luo, Steven C. Wofsy, Steven P. Hamburg, and Ritesh Gautam

Atmos. Chem. Phys., 26, 2941–2963, https://doi.org/10.5194/acp-26-2941-2026,https://doi.org/10.5194/acp-26-2941-2026, 2026

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27 Feb 2026

Disparate evolution mechanisms and optical absorption for transboundary soot particles passing through inland and sea pathways

Jian Zhang, Zexuan Zhang, Keliang Li, Xiyao Chen, Xinpeng Xu, Yangmei Zhang, Anzhou Han, Yuanyuan Wang, Jing Ding, Liang Xu, Yinxiao Zhang, Hongya Niu, Shoujuan Shu, and Weijun Li

Atmos. Chem. Phys., 26, 2965–2984, https://doi.org/10.5194/acp-26-2965-2026,https://doi.org/10.5194/acp-26-2965-2026, 2026

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27 Feb 2026

Contrasting aerosol mixing states at inland and coastal sites: an entropy-based metric for CCN activity

Jingye Ren, Wei Xu, Ru-Jin Huang, Fang Zhang, Ying Wang, Lu Chen, Jurgita Ovadnevaite, Darius Ceburnis, Colin O'Dowd, and Yele Sun

Atmos. Chem. Phys., 26, 2985–3000, https://doi.org/10.5194/acp-26-2985-2026,https://doi.org/10.5194/acp-26-2985-2026, 2026

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27 Feb 2026

Distinct spatiotemporal patterns of atmospheric total and soluble iron from three sources revealed by shipboard online observations in the Northwest Pacific

Tianle Zhang, Yaxin Xiang, Bingxing Zhu, Xiaohong Yao, Xuehua Fan, Yinan Wang, Yuntao Wang, Shuangling Chen, Shunyao Wang, Yan Zhang, Fei Chai, and Mei Zheng

Atmos. Chem. Phys., 26, 3001–3024, https://doi.org/10.5194/acp-26-3001-2026,https://doi.org/10.5194/acp-26-3001-2026, 2026

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27 Feb 2026

From column to surface: connecting the performance in simulating aerosol optical properties and PM_2.5 concentrations in the NASA GEOSCCM

Caterina Mogno, Peter R. Colarco, Allison B. Collow, Sampa Das, Sarah A. Strode, Vanessa Valenti, Michael E. Manyin, Qing Liang, Luke Oman, Stephen D. Steenrod, and K. Emma Knowland

Atmos. Chem. Phys., 26, 3025–3047, https://doi.org/10.5194/acp-26-3025-2026,https://doi.org/10.5194/acp-26-3025-2026, 2026

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27 Feb 2026

Occurrence of seeding multi-layer clouds in the Arctic from ground-based observations

Peggy Achtert, Torsten Seelig, Gabriella Wallentin, Luisa Ickes, Matthew D. Shupe, Corinna Hoose, and Matthias Tesche

Atmos. Chem. Phys., 26, 3049–3068, https://doi.org/10.5194/acp-26-3049-2026,https://doi.org/10.5194/acp-26-3049-2026, 2026

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27 Feb 2026

The prevalence of Arctic multilayer clouds and their observed and modelled characteristics

Gabriella Wallentin, Luisa Ickes, Peggy Achtert, Matthias Tesche, and Corinna Hoose

Atmos. Chem. Phys., 26, 3069–3089, https://doi.org/10.5194/acp-26-3069-2026,https://doi.org/10.5194/acp-26-3069-2026, 2026

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27 Feb 2026

Unexpected enhancement of new particle formation by lactic acid sulfate resulting from SO₃ loss in forested and agricultural regions

Rui Wang, Shuqin Wei, Zeyao Li, Kaiyu Xue, Rui Bai, and Tianlei Zhang

Atmos. Chem. Phys., 26, 3091–3105, https://doi.org/10.5194/acp-26-3091-2026,https://doi.org/10.5194/acp-26-3091-2026, 2026

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02 Mar 2026

In-tandem multi-waveband particulate absorption and size observations yield substantial changes in radiative forcing over industrial Central China

Luoyao Guan, Jason Blake Cohen, Shuo Wang, Pravash Tiwari, Zhewen Liu, Zhengqiang Li, and Kai Qin

Atmos. Chem. Phys., 26, 3107–3123, https://doi.org/10.5194/acp-26-3107-2026,https://doi.org/10.5194/acp-26-3107-2026, 2026

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02 Mar 2026

Contrail formation for aircraft with hydrogen combustion – Part 1: A systematic microphysical investigation

Josef Zink, Simon Unterstrasser, and Ulrike Burkhardt

Atmos. Chem. Phys., 26, 3125–3143, https://doi.org/10.5194/acp-26-3125-2026,https://doi.org/10.5194/acp-26-3125-2026, 2026

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03 Mar 2026

Contrail formation for aircraft with hydrogen combustion – Part 2: Engine-related aspects

Josef Zink and Simon Unterstrasser

Atmos. Chem. Phys., 26, 3145–3165, https://doi.org/10.5194/acp-26-3145-2026,https://doi.org/10.5194/acp-26-3145-2026, 2026

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03 Mar 2026

Concentration and size distribution of black carbon over the ablation area of Potanin glacier: enrichment ability of surface weathering granular ice of water-insoluble particles with snow/ice melting

Sayako Ueda, Akiko Sakai, Sho Ohata, Purevdagva Khalzan, Sumito Matoba, Ken Kondo, and Hitoshi Matsui

Atmos. Chem. Phys., 26, 3167–3184, https://doi.org/10.5194/acp-26-3167-2026,https://doi.org/10.5194/acp-26-3167-2026, 2026

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03 Mar 2026

Characteristics and processing of aqueous secondary organic aerosols during autumn in suburban Eastern China: role of aerosol liquid water, aerosol acidity, and photochemistry

Qiu Wang, Tengyu Liu, Weiqi Xu, Jinbo Wang, Dafeng Ge, Caijun Zhu, Chuanhua Ren, Jiaping Wang, Qiaozhi Zha, Ximeng Qi, Wei Nie, Xuguang Chi, Sijia Lou, Xin Huang, and Aijun Ding

Atmos. Chem. Phys., 26, 3185–3194, https://doi.org/10.5194/acp-26-3185-2026,https://doi.org/10.5194/acp-26-3185-2026, 2026

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03 Mar 2026

An observation-based methodology and application for future atmosphere secondary pollution control via an atmospheric oxidation capacity path tracing approach

Ke Yue, Yulong Yan, Yueyuan Niu, Jiaqi Dong, Chao Yang, Yongqian Zhou, Danning Wang, Junjie Li, Zhen Li, and Lin Peng

Atmos. Chem. Phys., 26, 3195–3210, https://doi.org/10.5194/acp-26-3195-2026,https://doi.org/10.5194/acp-26-3195-2026, 2026

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03 Mar 2026

Chlorine radical-initiated atmospheric oxidation of imines: implications for structural influence on the nitrosamine formation

Qian Xu, Fangfang Ma, Chang Liu, Qiaojing Zhao, Jingwen Chen, and Hong-Bin Xie

Atmos. Chem. Phys., 26, 3211–3222, https://doi.org/10.5194/acp-26-3211-2026,https://doi.org/10.5194/acp-26-3211-2026, 2026

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03 Mar 2026

Ice-nucleating particle depletion in the wintertime boundary layer in the pre-Alpine region during stratus cloud conditions

Kevin Ohneiser, Markus Hartmann, Heike Wex, Patric Seifert, Anja Hardt, Anna Miller, Katharina Baudrexl, Werner Thomas, Veronika Ettrichrätz, Maximilian Maahn, Tom Gaudek, Willi Schimmel, Fabian Senf, Hannes Griesche, Martin Radenz, and Jan Henneberger

Atmos. Chem. Phys., 26, 3223–3236, https://doi.org/10.5194/acp-26-3223-2026,https://doi.org/10.5194/acp-26-3223-2026, 2026

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03 Mar 2026

Controlled chamber formation of per- and polyfluoroalkyl substances (PFAS) aerosols with Pseudomonas fluorescens: size distributions, effects, and inhalation deposition potential

Ivan Kourtchev, Steve Coupe, Alison Buckley, Jishnu Pandamkulangara Kizhakkethil, Elena Gatta, Dario Massabò, Paolo Prati, Virginia Vernocchi, and Federico Mazzei

Atmos. Chem. Phys., 26, 3237–3252, https://doi.org/10.5194/acp-26-3237-2026,https://doi.org/10.5194/acp-26-3237-2026, 2026

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03 Mar 2026

Atmospheric CO₂ dynamics in a coastal megacity: spatiotemporal patterns, sea–land breeze impacts, and anthropogenic–biogenic emission partitioning

Jinwen Zhang, Yongjian Liang, Chenglei Pei, Bo Huang, Yingyan Huang, Xiufeng Lian, Shaojie Song, Chunlei Cheng, Cheng Wu, Zhen Zhou, Junjie Li, and Mei Li

Atmos. Chem. Phys., 26, 3253–3276, https://doi.org/10.5194/acp-26-3253-2026,https://doi.org/10.5194/acp-26-3253-2026, 2026

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03 Mar 2026

Snow microphysical processes in orographic turbulence revealed by cloud radar and in situ snowfall camera observations

Anton Kötsche, Maximilian Maahn, Veronika Ettrichrätz, and Heike Kalesse-Los

Atmos. Chem. Phys., 26, 3277–3297, https://doi.org/10.5194/acp-26-3277-2026,https://doi.org/10.5194/acp-26-3277-2026, 2026

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