Wintertime extreme warming events in the high Arctic: characteristics, drivers, trends, and the role of atmospheric rivers by W. Ma, H. Wang, G. Chen, Y. Qian, I. Baxter, I. Baxter, Y. Huo, M. W. Seefeldt

“…<p>An extreme warming event near the North Pole, with 2 m temperature rising above 0 <span class="inline-formula">°C</span>, was observed in late December 2015. This specific event has been attributed to cyclones and their associated moisture intrusions. …”
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Evolution and chemical characteristics of organic aerosols during wintertime PM_2.5 episodes in Shanghai, China: insights gained from online measurements of organic molec... by S. Zhu, S. Zhu, M. Zhou, L. Qiao, D. D. Huang, Q. Wang, S. Wang, Y. Gao, S. Jing, Q. Wang, H. Wang, C. Chen, C. Huang, J. Z. Yu, J. Z. Yu

“…Rapid increases in both the absolute mass concentration and relative proportion were observed for primary and secondary OA markers, indicative of vehicle emissions (e.g., alkanes, hopanes, and 2,3-dihydroxy-4-oxopentanoic acid) and cooking activities (e.g., saturated and unsaturated fatty acids and C<span class="inline-formula">₉</span> acids). …”
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Leaf carbon and nitrogen stoichiometric variation along environmental gradients by H. Xu, H. Wang, I. C. Prentice, I. C. Prentice, S. P. Harrison, S. P. Harrison

“…The coefficients relating <span class="inline-formula"><i>N</i>_mass</span> to the ratio of maximum carboxylation capacity at 25 <span class="inline-formula">^∘</span>C (<span class="inline-formula"><i>V</i>_cmax25</span>) and leaf mass per area (<span class="inline-formula"><i>M</i>_a</span>) were influenced by leaf area index. …”
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Application of an improved distributed hydrological model based on the soil–gravel structure in the Niyang River basin, Qinghai–Tibet Plateau by P. Wang, P. Wang, P. Wang, Z. Zhou, J. Liu, C. Xu, C. Xu, K. Wang, Y. Liu, J. Li, Y. Li, Y. Jia, H. Wang

“…The temperature root-mean-square error was reduced from 1.16 to 0.86 <span class="inline-formula">^∘C</span>. In the fully thawed period, the dualistic soil–gravel structure improved the regulation effect of groundwater on flow, thus stabilizing the flow process. …”
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Unambiguous identification of N-containing oxygenated organic molecules using a chemical-ionization Orbitrap (CI-Orbitrap) in an eastern Chinese megacity by Y. Lu, Y. Lu, Y. Ma, D. D. Huang, S. Lou, S. Jing, Y. Gao, H. Wang, Y. Zhang, H. Chen, Y. Chang, N. Yan, J. Chen, C. George, M. Riva, C. Huang

“…The 2N-OOM<span class="inline-formula">_Ali</span> was the most abundant 2N-OOM, and its fraction even increased on the polluted day with an enhanced proportion of the ones with nC <span class="inline-formula"><i>&gt;</i>10</span>. …”
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