Mobile monitoring of urban air quality at high spatial resolution by low-cost sensors: impacts of COVID-19 pandemic lockdown

by S. Wang, Y. Ma, Z. Wang, L. Wang, X. Chi, A. Ding, M. Yao, Y. Li, Q. Li, M. Wu, L. Zhang, Y. Xiao, Y. Zhang
Published 2021-05-01

Stratospheric carbon isotope fractionation and tropospheric histories of CFC-11, CFC-12, and CFC-113 isotopologues

by M. Thomas, M. Thomas, J. C. Laube, J. C. Laube, J. Kaiser, S. Allin, P. Martinerie, R. Mulvaney, A. Ridley, T. Röckmann, W. T. Sturges, E. Witrant
Published 2021-05-01

Trends, composition, and sources of carbonaceous aerosol at the Birkenes Observatory, northern Europe, 2001–2018

by K. E. Yttri, F. Canonaco, F. Canonaco, S. Eckhardt, N. Evangeliou, M. Fiebig, H. Gundersen, A.-G. Hjellbrekke, C. Lund Myhre, S. M. Platt, A. S. H. Prévôt, D. Simpson, D. Simpson, S. Solberg, J. Surratt, J. Surratt, K. Tørseth, H. Uggerud, M. Vadset, X. Wan, W. Aas
Published 2021-05-01

Captured cirrus ice particles in high definition

by N. Magee, K. Boaggio, S. Staskiewicz, A. Lynn, X. Zhao, N. Tusay, T. Schuh, M. Bandamede, L. Bancroft, D. Connelly, K. Hurler, B. Miner, E. Khoudary
Published 2021-05-01

Interactions of organosulfates with water vapor under sub- and supersaturated conditions

by C. Peng, C. Peng, P. N. Razafindrambinina, K. A. Malek, L. Chen, L. Chen, L. Chen, W. Wang, R.-J. Huang, Y. Zhang, Y. Zhang, X. Ding, X. Ding, M. Ge, X. Wang, X. Wang, A. A. Asa-Awuku, A. A. Asa-Awuku, M. Tang, M. Tang, M. Tang
Published 2021-05-01

Smoke-charged vortices in the stratosphere generated by wildfires and their behaviour in both hemispheres: comparing Australia 2020 to Canada 2017

by H. Lestrelin, B. Legras, A. Podglajen, M. Salihoglu
Published 2021-05-01

Analysis of recent lower-stratospheric ozone trends in chemistry climate models

by S. Dietmüller, H. Garny, H. Garny, R. Eichinger, R. Eichinger, R. Eichinger, W. T. Ball, W. T. Ball, W. T. Ball
Published 2021-05-01

Measurement report: Balloon-borne in situ profiling of Saharan dust over Cyprus with the UCASS optical particle counter

by M. Kezoudi, M. Kezoudi, M. Tesche, M. Tesche, H. Smith, H. Smith, A. Tsekeri, H. Baars, M. Dollner, V. Estellés, V. Estellés, J. Bühl, B. Weinzierl, Z. Ulanowski, Z. Ulanowski, Z. Ulanowski, D. Müller, V. Amiridis
Published 2021-05-01

What drives daily precipitation over the central Amazon? Differences observed between wet and dry seasons

by T. S. Biscaro, L. A. T. Machado, L. A. T. Machado, S. E. Giangrande, M. P. Jensen
Published 2021-05-01

Aerosols from anthropogenic and biogenic sources and their interactions – modeling aerosol formation, optical properties, and impacts over the central Amazon basin

by J. P. Nascimento, M. M. Bela, M. M. Bela, B. B. Meller, A. L. Banducci, L. V. Rizzo, A. L. Vara-Vela, H. M. J. Barbosa, H. Gomes, H. Gomes, S. A. A. Rafee, M. A. Franco, S. Carbone, S. Carbone, G. G. Cirino, R. A. F. Souza, S. A. McKeen, S. A. McKeen, P. Artaxo
Published 2021-05-01

Shape dependence of snow crystal fall speed

by S. Vázquez-Martín, T. Kuhn, S. Eliasson
Published 2021-05-01

The advective Brewer–Dobson circulation in the ERA5 reanalysis: climatology, variability, and trends

by M. Diallo, M. Ern, F. Ploeger, F. Ploeger
Published 2021-05-01

Reactive nitrogen around the Arabian Peninsula and in the Mediterranean Sea during the 2017 AQABA ship campaign

by N. Friedrich, P. Eger, J. Shenolikar, N. Sobanski, J. Schuladen, D. Dienhart, B. Hottmann, I. Tadic, H. Fischer, M. Martinez, R. Rohloff, S. Tauer, H. Harder, E. Y. Pfannerstill, N. Wang, J. Williams, J. Brooks, F. Drewnick, H. Su, G. Li, Y. Cheng, J. Lelieveld, J. N. Crowley
Published 2021-05-01

Convergent evidence for the pervasive but limited contribution of biomass burning to atmospheric ammonia in peninsular Southeast Asia

by Y. Chang, Y.-L. Zhang, S. Kawichai, Q. Wang, M. Van Damme, L. Clarisse, T. Prapamontol, M. F. Lehmann
Published 2021-05-01

Robust winter warming over Eurasia under stratospheric sulfate geoengineering – the role of stratospheric dynamics

by A. Banerjee, A. Banerjee, A. H. Butler, L. M. Polvani, A. Robock, I. R. Simpson, L. Sun
Published 2021-05-01

Water uptake of subpollen aerosol particles: hygroscopic growth, cloud condensation nuclei activation, and liquid–liquid phase separation

by E. F. Mikhailov, E. F. Mikhailov, M. L. Pöhlker, K. Reinmuth-Selzle, S. S. Vlasenko, O. O. Krüger, J. Fröhlich-Nowoisky, C. Pöhlker, O. A. Ivanova, A. A. Kiselev, L. A. Kremper, U. Pöschl
Published 2021-05-01

Lidar vertical observation network and data assimilation reveal key processes driving the 3-D dynamic evolution of PM_2.5 concentrations over the North China Plain

by Y. Xiang, T. Zhang, T. Zhang, C. Ma, L. Lv, J. Liu, W. Liu, W. Liu, Y. Cheng
Published 2021-05-01

Enhancement of nanoparticle formation and growth during the COVID-19 lockdown period in urban Beijing

by X. Shen, J. Sun, F. Yu, Y. Wang, J. Zhong, J. Zhong, Y. Zhang, X. Hu, C. Xia, C. Xia, S. Zhang, X. Zhang
Published 2021-05-01

Dilution impacts on smoke aging: evidence in Biomass Burning Observation Project (BBOP) data

by A. L. Hodshire, E. Ramnarine, A. Akherati, M. L. Alvarado, D. K. Farmer, S. H. Jathar, S. M. Kreidenweis, C. R. Lonsdale, T. B. Onasch, S. R. Springston, J. Wang, J. Wang, Y. Wang, Y. Wang, L. I. Kleinman, A. J. Sedlacek III, J. R. Pierce
Published 2021-05-01

Measurement report: regional trends of stratospheric ozone evaluated using the MErged GRIdded Dataset of Ozone Profiles (MEGRIDOP)

by V. F. Sofieva, M. Szeląg, J. Tamminen, E. Kyrölä, D. Degenstein, C. Roth, D. Zawada, A. Rozanov, C. Arosio, J. P. Burrows, M. Weber, A. Laeng, G. P. Stiller, T. von Clarmann, L. Froidevaux, N. Livesey, M. van Roozendael, C. Retscher
Published 2021-05-01