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Future changes in South Asian summer monsoon circulation under global warming: role of the Tibetan Plateau latent heating npj Clim. Atmos. Sci. (IF 9.0) Pub Date : 2024-05-15 Haolin Luo, Ziqian Wang, Chao He, Deliang Chen, Song Yang
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Unexpected HCHO transnational transport: influence on the temporal and spatial distribution of HCHO in Tibet from 2013 to 2021 based on satellite npj Clim. Atmos. Sci. (IF 9.0) Pub Date : 2024-05-14 Yizhou Xu, Wenjing Su, Qihou Hu, Chengxin Zhang, Zeeshan Javed, Yuan Tian, Hongri Hou, Cheng Liu
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Shallow- and deep-convection characteristics in the greater Houston, Texas, area using cell tracking methodology Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-15 Kristofer S. Tuftedal, Bernat Puigdomènech Treserras, Mariko Oue, Pavlos Kollias
Abstract. The convective lifecycle, from initiation to maturity and dissipation, is driven by a combination of kinematic, thermodynamic, microphysical, and radiative processes that are strongly coupled and variable in time and space. Weather radars have been traditionally used to provide various convective-cloud characteristics. Here, we analyzed climatological convective-cell radar characteristics
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Modeling the influence of carbon branching structure on secondary organic aerosol formation via multiphase reactions of alkanes Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-15 Azad Madhu, Myoseon Jang, Yujin Jo
Abstract. Branched alkanes represent a significant proportion of hydrocarbons emitted in urban environments. To accurately predict the secondary organic aerosol (SOA) budgets in urban environments, these branched alkanes should be considered as SOA precursors. However, the potential to form SOA from diverse branched alkanes under varying environmental conditions is currently not well understood. In
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Suppressed atmospheric chemical aging of cooking organic aerosol particles in wintertime conditions Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-15 Wenli Liu, Longkun He, Yingjun Liu, Keren Liao, Qi Chen, Mikinori Kuwata
Abstract. Cooking organic aerosol (COA) is one of the major constituents of particulate matter in urban areas. COA is oxidized by atmospheric oxidants such as ozone, changing its physical, chemical and toxicological properties. However, atmospheric chemical lifetimes of COA and its tracers such as oleic acid are typically longer than those that have been estimated by laboratory studies. We tackled
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Molecular composition of clouds: a comparison between samples collected at tropical (Réunion Island, France) and mid-north (Puy de Dôme, France) latitudes Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-15 Lucas Pailler, Laurent Deguillaume, Hélène Lavanant, Isabelle Schmitz, Marie Hubert, Edith Nicol, Mickaël Ribeiro, Jean-Marc Pichon, Mickaël Vaïtilingom, Pamela Dominutti, Frédéric Burnet, Pierre Tulet, Maud Leriche, Angelica Bianco
Abstract. The composition of dissolved organic matter of cloud water has been investigated through non-targeted high-resolution mass spectrometry on only a few samples that were mostly collected in the Northern Hemisphere in the USA, Europe and China. There remains, therefore, a lack of measurements for clouds located in the Southern Hemisphere, under tropical conditions and influenced by forest emissions
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Observations of the macrophysical properties of cumulus cloud fields over the tropical western Pacific and their connection to meteorological variables Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-15 Michie Vianca De Vera, Larry Di Girolamo, Guangyu Zhao, Robert M. Rauber, Stephen W. Nesbitt, Greg M. McFarquhar
Abstract. The poor representation of the macrophysical properties of shallow oceanic cumuli in climate models contributes to the large uncertainty in cloud feedback. These properties are also difficult to measure because it requires high-resolution satellite imagery that is seldomly collected over ocean. Here, we examine cumulus cloud macrophysical properties, their size, shape, and spatial distributions
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Opinion: A research roadmap for exploring atmospheric methane removal via iron salt aerosol Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-15 Katrine A. Gorham, Sam Abernethy, Tyler R. Jones, Peter Hess, Natalie M. Mahowald, Daphne Meidan, Matthew S. Johnson, Maarten M. J. W. van Herpen, Yangyang Xu, Alfonso Saiz-Lopez, Thomas Röckmann, Chloe A. Brashear, Erika Reinhardt, David Mann
Abstract. The escalating climate crisis requires rapid action to reduce the concentrations of atmospheric greenhouse gases and lower global surface temperatures. Methane will play a critical role in near-term warming due to its high radiative forcing and short atmospheric lifetime. Methane emissions have accelerated in recent years, and there is significant risk and uncertainty associated with the
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Measurement report: The promotion of low-level jet and thermal-effect on development of deep convective boundary layer at the southern edge of the Taklimakan Desert Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-15 Lian Su, Chunsong Lu, Jinlong Yuan, Xiaofei Wang, Qing He, Haiyun Xia
Abstract. A vigorous development process of the deep convective boundary layer (CBL) was observed at the southern edge of the Taklimakan Desert on 6 June, 2022. Based on coherent Doppler wind lidar and ERA5 data, the formation mechanism of the deep CBL exceeding 5 km was well analyzed, which was mainly promoted by the low-level jet (LLJ) and thermal-effect. The LLJ has made sufficient momentum, energy
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Formation and temperature dependence of Highly Oxygenated Organic Molecules (HOM) from Δ3-carene ozonolysis Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-15 Yuanyuan Luo, Ditte Thomsen, Emil Mark Iversen, Pontus Roldin, Jane Tygesen Skønager, Linjie Li, Michael Priestley, Henrik B. Pedersen, Mattias Hallquist, Merete Bilde, Marianne Glasius, Mikael Ehn
Abstract. ∆3-carene is a prominent monoterpene in the atmosphere, contributing significantly to secondary organic aerosol (SOA) formation. However, knowledge about ∆3-carene oxidation pathways, particularly regarding its ability to form highly oxygenated organic molecules (HOM), is still limited. In this study, we present HOM measurements during ∆3-carene ozonolysis under various conditions in two
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Analysis of the global atmospheric background sulfur budget in a multi-model framework Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-14 Christina V. Brodowsky, Timofei Sukhodolov, Gabriel Chiodo, Valentina Aquila, Slimane Bekki, Sandip S. Dhomse, Michael Höpfner, Anton Laakso, Graham W. Mann, Ulrike Niemeier, Giovanni Pitari, Ilaria Quaglia, Eugene Rozanov, Anja Schmidt, Takashi Sekiya, Simone Tilmes, Claudia Timmreck, Sandro Vattioni, Daniele Visioni, Pengfei Yu, Yunqian Zhu, Thomas Peter
Abstract. A growing number of general circulation models are adapting interactive sulfur and aerosol schemes to improve the representation of relevant physical and chemical processes and associated feedbacks. They are motivated by investigations of climate response to major volcanic eruptions and potential solar geoengineering scenarios. However, uncertainties in these schemes are not well constrained
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Variability in the properties of the distribution of the relative humidity with respect to ice: implications for contrail formation Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-14 Sidiki Sanogo, Olivier Boucher, Nicolas Bellouin, Audran Borella, Kevin Wolf, Susanne Rohs
Abstract. Relative humidity with respect to ice (RHi) is a key variable in the formation of cirrus clouds and contrails. We document its probability density function (PDF) using long-term Measurements of Ozone, Water Vapour, Carbon Monoxide and Nitrogen Oxides by In-Service Airbus Aircraft (MOZAIC) and the In-service Aircraft for a Global Observing System (IAGOS) observations over the period 1995–2022
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Secondary organic aerosols derived from intermediate-volatility n-alkanes adopt low-viscous phase state Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-14 Tommaso Galeazzo, Bernard Aumont, Marie Camredon, Richard Valorso, Yong B. Lim, Paul J. Ziemann, Manabu Shiraiwa
Abstract. Secondary organic aerosol (SOA) derived from n-alkanes, as emitted from vehicles and volatile chemical products, is a major component of anthropogenic particulate matter, yet the chemical composition and phase state are poorly understood and thus poorly constrained in aerosol models. Here we provide a comprehensive analysis of n-alkane SOA by explicit gas-phase chemistry modeling, machine
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Technical note: Numerical quantification of the mixing states of partially-coated black carbon based on the single-particle soot photometer: Implication for global radiative forcing Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-14 Jie Luo, Miao Hu, Jibing Qiu, Kaitao Li, Hao He, Yuping Sun, Xiulin Geng
Abstract. In this work, we have performed a series of numerical investigations on the mixing states of partially-coated black carbon (BC) based on the single-particle soot photometer (SP2). First, we calculated the scattering signal returned from partially-coated BC based on the SP2 measurement, and then the mixing states were determined using Mie theory, where the difference between the determined
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Diurnal variation of amplified canopy urban heat island in Beijing megacity during heat wave periods: Roles of mountain-valley circulation and urban morphology Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-14 Tao Shi, Yuanjian Yang, Ping Qi, Simone Lolli
Abstract. In the context of global warming and rapid urbanization, heat waves (HW) are becoming more frequent, which is amplifying canopy urban heat island (CUHI) via various driving mechanisms. While the roles of local circulation and urban morphology remain unclear in the synergistic interaction between HW and CUHI. By utilizing the data from high-density automatic weather stations in the Beijing
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Opinion: Challenges and needs of tropospheric chemical mechanism development Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-14 Barbara Ervens, Andrew Rickard, Bernard Aumont, William P. L. Carter, Max McGillen, Abdelwahid Mellouki, John Orlando, Bénédicte Picquet-Varrault, Paul Seakins, William Stockwell, Luc Vereecken, Tim Wallington
Abstract. Chemical mechanisms form the core of atmospheric models to describe degradation pathways of pollutants and ultimately inform air quality and climate policy makers and other stakeholders. The accuracy of chemical mechanisms relies on the quality of their input data, which originate from experimental (laboratory, field, chamber) and theoretical (quantum chemistry, theoretical kinetics, machine
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Formation and chemical evolution of SOA in two different environments: A dual chamber study Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-14 Andreas Aktypis, Dontavious Sippial, Christina Vasilakopoulou, Angeliki Matrali, Christos Kaltsonoudis, Andrea Simonati, Marco Paglione, Matteo Rinaldi, Stefano Decesari, Spyros Pandis
Abstract. A dual chamber system was deployed in two different environments to study the potential of ambient air, that was directly injected into the chambers, to form secondary organic and inorganic aerosol. A total of 16 experiments took place during March 2022 in a polluted environment in the Po Valley, Italy which is dominated by anthropogenic emissions. Another 15 experiments were conducted in
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Long range transport of South and East Asian anthropogenic aerosols counteracting Arctic warming npj Clim. Atmos. Sci. (IF 9.0) Pub Date : 2024-05-13 Suvarna Fadnavis, Sunil M. Sonbawne, Anton Laakso, Felix Ploeger, Alexandru Rap, Bernd Heinold, T. P. Sabin, Rolf Müller
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Contribution of fluorescent primary biological aerosol particles to low-level Arctic cloud residuals Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-13 Gabriel Pereira Freitas, Ben Kopec, Kouji Adachi, Radovan Krejci, Dominic Heslin-Rees, Karl Espen Yttri, Alun Hubbard, Jeffrey M. Welker, Paul Zieger
Abstract. Mixed-phase clouds (MPCs) are key players in the Arctic climate system due to their role in modulating solar and terrestrial radiation. Such radiative interactions rely, among other factors, on the ice content of MPCs, which is regulated by the availability of ice-nucleating particles (INPs). While it appears that INPs are associated with the presence of primary biological aerosol particles
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Enhanced daytime secondary aerosol formation driven by gas-particle partitioning in downwind urban plumes Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-13 Mingfu Cai, Chenshuo Ye, Bin Yuan, Shan Huang, E Zheng, Suxia Yang, Zelong Wang, Yi Lin, Tiange Li, Weiwei Hu, Wei Chen, Qicong Song, Wei Li, Yuwen Peng, Baolin Liang, Qibin Sun, Jun Zhao, Duohong Chen, Jiaren Sun, Zhiyong Yang, Min Shao
Abstract. Anthropogenic emissions from city clusters can significantly enhance secondary organic aerosol (SOA) formation in the downwind regions, while the mechanism is poorly understood. To investigate the effect of pollutants within urban plumes on organic aerosol (OA) evolution, a field campaign was conducted at a downwind site of the Pearl River Delta region of China in the fall of 2019. A time-of-flight
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Dominant Influence of Biomass Combustion and Cross-Border Transport on Nitrogen-Containing Organic Compound Levels in the Southeastern Tibetan Plateau Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-13 Meng Wang, Qiyuan Wang, Steven Sai Hang Ho, Jie Tian, Yong Zhang, Shun-cheng Lee, Junji Cao
Abstract. The Tibetan Plateau (TP) is highly susceptible to climate change and the nitrogen-containing organic compounds (NOCs) in fine particulate matter (PM2.5) represent one of the large uncertainties in affecting the climate in high-altitude areas. Previous studies have shown that NOCs play a vital role in the nitrogen budget of PM2.5. However, our understanding of the composition and sources of
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The return to 1980 stratospheric halogen levels: A moving target in ozone assessments from 2006 to 2022 Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-13 Megan Lickley, John S. Daniel, Laura A. McBride, Ross J. Salawitch, Guus Velders
Abstract. The international scientific assessment of ozone depletion is prepared every four years to support decisions made by the Parties to the Montreal Protocol. In each assessment an outlook of ozone recovery time is provided. The year when equivalent effective stratospheric chlorine (EESC) returns to the level found in 1980 is an important metric for the recovery of the ozone layer. Over the past
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Colonial erasures in gender and climate change solutions WIREs Clim. Chang. (IF 9.2) Pub Date : 2024-05-11 Bernadette P. Resurrección
Despite deliberate moves to integrate gender with climate change solutions, efforts do not go far enough to account for coloniality, thus falling short of achieving feminist, just and transformative ends. Coloniality is a political blind spot and a systematic amnesia in climate policies and actions, despite being a key driver of climate change manifested through various forms of extractivism, economic
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Artificial intelligence for predicting urban heat island effect and optimising land use/land cover for mitigation: Prospects and recent advancements Urban Clim. (IF 6.4) Pub Date : 2024-05-09 Omar Y.A. Mohamed, Izni Zahidi
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Spatial modelling of street-level carbon emissions with multi-source open data: A case study of Guangzhou Urban Clim. (IF 6.4) Pub Date : 2024-05-09 Yingsheng Zheng, Wenjie Li, Lu Jiang, Chao Yuan, Te Xiao, Ran Wang, Meng Cai, Haobin Hong
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Urban heat and pollution island in the Moscow megacity: Urban environmental compartments and their interactions Urban Clim. (IF 6.4) Pub Date : 2024-05-09 Nikolay Kasimov, Sergey Chalov, Natalia Chubarova, Natalia Kosheleva, Olga Popovicheva, Natalia Shartova, Viktor Stepanenko, Elizaveta Androsova, Marina Chichaeva, Oxana Erina, Alexander Kirsanov, Roman Kovach, Boris Revich, Galina Shinkareva, Maria Tereshina, Mikhail Varentsov, Jessica Vasil'chuk, Dmitrii Vlasov, Irina Denisova, Tatiana Minkina
Cities are highly interconnected systems where specific interactions between various urban environments occur due to the Urban Heat Island (UHI) and Urban Pollution Island (UPI) effects. Four compartments of the environment (atmospheric air, road dust, streamflow, and people) are discussed for Moscow city. Long-term meteorological, radiative, air quality, and precipitation measurements, the non-hydrostatic
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The thermal perception of outdoor urban spaces in a hot arid climate: A structural equation modelling (SEM) approach Urban Clim. (IF 6.4) Pub Date : 2024-05-09 Mohamed H. Elnabawi, Elmira Jamei
Human thermal comfort is linked to multi-sensory attributes and psychological cognition besides the influence of prominent meteorological parameters. To date, even the most advanced thermal comfort models like UTCI consider the interaction between human and external surroundings to be a heat transfer problem applying thermodynamic equations in the derivation behind thermal comfort indices. Machine
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Optimal low-impact development Facility Design in Urban Environments: A multidimensional optimization approach employing slime mould and nondominated sorting genetic algorithms Urban Clim. (IF 6.4) Pub Date : 2024-05-09 Mehrtash Eskandaripour, Shahrokh Soltaninia
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Multi-factor PM2.5 concentration optimization prediction model based on decomposition and integration. Urban Climate Volume 55, April 2024, Article Number: 101916, Page Numbers: 1–29 Urban Clim. (IF 6.4) Pub Date : 2024-05-09 Hong Yang, Wenqian Wang, Guohui Li
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Impacts of urban heat island intensities on a bifurcating thunderstorm over Beijing Urban Clim. (IF 6.4) Pub Date : 2024-05-09 Jingjing Dou, Robert Bornstein, Jianning Sun, Shiguang Miao
To gain the insight into the impacts of different urban thermal conditions on precipitation, a series of simulations that modified the surface sensible heat from building is performed during a thunderstorm passage over Beijing. The UHI intensity changed from 0.8 to 2.2 °C with the increase sensible heat. Results showed that: (i) Under weak UHI conditions (≤1.4 °C), it is the urban dynamical effect
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An ensemble deep learning approach to spatiotemporal tropospheric ozone forecasting: A case study of Tehran, Iran Urban Clim. (IF 6.4) Pub Date : 2024-05-09 Mostafa Rezaali, Mohammad Sina Jahangir, Reza Fouladi-Fard, David Keellings
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A novel spatial disaggregation model of vehicle emission inventory Urban Clim. (IF 6.4) Pub Date : 2024-05-09 Haixia Feng, Xingyu Wang, Qiang Jia, Maoxin Zhu
An accurate spatial disaggregation method is crucial to ensure the accuracy of gridding vehicle emissions inventories. In the present study, we proposed a novel spatial disaggregation model that combines standard road length with aerosol optical depth (AOD) remote sensing data. Qingdao, a typical coastal city in China, was selected as the study area. We used the new model to obtain a gridded vehicle
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Inequality of exposure to PM2.5 and ozone among age groups and cities in Japan in 2030 and 2050 Urban Clim. (IF 6.4) Pub Date : 2024-05-09 Zhiheng Chen, Lie Sun, Liqiao Huang, Yang Xie, Shixing Yang, Lu Sun, Jinjun Xue, Fei Yan
Global air pollution levels have increased in recent years, posing major health challenges. Although there is already evidence that residents of large cities and vulnerable groups such as the elderly and children are at higher risk of exposure to air pollution, there is a need to expand new perceptions in the face of a new phase of urbanization and demographic change in the future. In the face of population
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Distinguishing direct N2O emissions from 15N-labeled manure compost, urea, and maize roots in a field study Agric. For. Meteorol. (IF 6.2) Pub Date : 2024-05-09 Liting Liu, Zhu Ouyang, Jing Li
Nitrous oxide (NO) emissions from agricultural activities are a significant contributor to global anthropogenic NO emissions. Sustainable agriculture practices, including using manure compost to replace nitrogen (N) fertilizers, can reduce chemical fertilizer use and minimize negative impacts on soil health and water quality. However, the direct contributions of manure compost to NO emissions have
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Opinion: New directions in atmospheric research offered by research infrastructures combined with open and data-intensive science Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-08 Andreas Petzold, Ulrich Bundke, Anca Hienola, Paolo Laj, Cathrine Lund Myhre, Alex Vermeulen, Angeliki Adamaki, Werner Kutsch, Valerie Thouret, Damien Boulanger, Markus Fiebig, Markus Stocker, Zhiming Zhao, Ari Asmi
Abstract. The acquisition and dissemination of essential information for understanding global biogeochemical interactions between the atmosphere and ecosystems and how climate–ecosystem feedback loops may change atmospheric composition in the future comprise a fundamental prerequisite for societal resilience in the face of climate change. In particular, the detection of trends and seasonality in the
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Quasi-biennial oscillation modulation of stratospheric water vapour in the Asian monsoon Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-08 Cristina Peña-Ortiz, Nuria Pilar Plaza, David Gallego, Felix Ploeger
Abstract. The Asian monsoon (AM) plays a key role in the transport of water vapour to the lower stratosphere and contributes significantly to the wet phase of the annual global stratospheric water vapour cycle. Although it is known that the quasi-biennial oscillation (QBO) is one of the main drivers of the interannual variability in the AM water vapour, the physical mechanisms responsible for this
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Studies on the propagation dynamics and source mechanism of quasi-monochromatic gravity waves observed over São Martinho da Serra (29° S, 53° W), Brazil Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-08 Cristiano M. Wrasse, Prosper K. Nyassor, Ligia A. da Silva, Cosme A. O. B. Figueiredo, José V. Bageston, Kleber P. Naccarato, Diego Barros, Hisao Takahashi, Delano Gobbi
Abstract. A total of 209 events of quasi-monochromatic atmospheric gravity waves (QMGWs) were acquired over 5 years of gravity waves (GWs) observation in southern Brazil. The observations were made by measuring the OH (hydroxyl radical) emission using an all-sky imager hosted by the Southern Space Observatory (SSO) coordinated by the National Institute for Space Research at São Martinho da Serra (RS)
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Measurement report: A comparison of ground-level ice-nucleating-particle abundance and aerosol properties during autumn at contrasting marine and terrestrial locations Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-08 Elise K. Wilbourn, Larissa Lacher, Carlos Guerrero, Hemanth S. K. Vepuri, Kristina Höhler, Jens Nadolny, Aidan D. Pantoya, Ottmar Möhler, Naruki Hiranuma
Abstract. Ice-nucleating particles (INPs) are an essential class of aerosols found worldwide that have far-reaching but poorly quantified climate feedback mechanisms through interaction with clouds and impacts on precipitation. These particles can have highly variable physicochemical properties in the atmosphere, and it is crucial to continuously monitor their long-term concentration relative to total
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Simulating the seeder–feeder impacts on cloud ice and precipitation over the Alps Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-08 Zane Dedekind, Ulrike Proske, Sylvaine Ferrachat, Ulrike Lohmann, David Neubauer
Abstract. The ice phase impacts many cloud properties as well as cloud lifetime. Ice particles that sediment into a lower cloud from an upper cloud (external seeder–feeder process) or into the mixed-phase region of a deep cloud from cirrus levels (internal seeder–feeder process) can influence the ice phase of the lower cloud, amplify cloud glaciation and enhance surface precipitation. Recently, numerical
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Measurement Report: Seasonal variation and anthropogenic influence on cloud condensation nuclei (CCN) activity in the South China Sea: Insights from shipborne observations during summer and winter of 2021 Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-08 Hengjia Ou, Mingfu Cai, Yongyun Zhang, Xue Ni, Baoling Liang, Qibin Sun, Shixin Mai, Cuizhi Sun, Shengzhen Zhou, Haichao Wang, Jiaren Sun, Jun Zhao
Abstract. Understanding seasonal variation in cloud condensation nuclei (CCN) activity and the impact of anthropogenic emissions in marine environments is crucial for assessing climate change. In this study, two shipborne observations in the South China Sea (SCS) during the summer and winter of 2021 were conducted. During summer, higher particle number concentrations but lower mass concentrations of
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Spatial variability and future evolution of surface solar radiation over Northern France and Benelux: a regional climate model approach Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-08 Gabriel Chesnoiu, Isabelle Chiapello, Nicolas Ferlay, Pierre Nabat, Marc Mallet, Véronique Riffault
Abstract. Improving knowledge of current and future spatio-temporal variability of surface solar radiation is essential in the context of climate change and associated environmental and societal issues. Such an evolution will be influenced by changes in both meteorological parameters and atmospheric composition, notably by anthropogenic emissions. We investigate both all-sky and clear-sky surface solar
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Real-world black carbon emissions of gasoline vehicles at urban intersections Urban Clim. (IF 6.4) Pub Date : 2024-05-08 Xin Wang, Zhaowen Qiu, Zhen Liu, Ling Liu
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Examining thermal inequities: Land surface temperature, social vulnerability, and historical redlining in San Antonio, TX Urban Clim. (IF 6.4) Pub Date : 2024-05-08 Farzad Hashemi, Mahsa Adib
Rising urban temperatures significantly impact human health, with their effects varying across socio-economic groups. With a focus on San Antonio, Texas, during its notably intense summer heat in 2023, this research explores the intricate relationship between urban heat and social vulnerability. Through the analysis of Land Surface Temperature (LST) data from Landsat 8 data, captured during three exceptionally
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A hybrid method for assessing the city emission status toward carbon peak Urban Clim. (IF 6.4) Pub Date : 2024-05-08 Jianhui Ruan, Ziyu Qin, Shuangyue Qian, Mingyu Li, Min Jia, Li Zhang, Zhe Zhang, Shuying Zhu, Hanying Jiang, Bofeng Cai, Shouyang Wang, Ling Tang
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On the future evolution of heatwaves in French cities and associated rural areas: Insights from a convection-permitting model Urban Clim. (IF 6.4) Pub Date : 2024-05-08 Y. Michau, A. Lemonsu, P. Lucas-Picher, M. Schneider, C. Caillaud
Urban areas are currently vulnerable to the effects of extreme weather events. Climate change is expected to increase the frequency of such events, including heatwaves (HWs), on which we are focusing. Our aim is to quantify how the exposure to HWs will evolve with climate change and its impact on populations. We take advantage of the CNRM-AROME convection-permitting scale (2.5-km) simulations coupled
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Evaluating the role of city representation in modelling the urban precipitation effect of Kuala Lumpur Urban Clim. (IF 6.4) Pub Date : 2024-05-08 Chiara Ghielmini, Francesco S.R. Pausata, Daniel Argüeso, Matthias Demuzere, Razib Vhuiyan
Urbanization of Earth's land surface is one of the most impactful human interactions on the global ecosystem. Urban land cover substantially alters the transfer of heat, moisture, momentum, and aerosols between the surface and the atmosphere. These surface modifications are the first link in a complex process sequence that causes changes in clouds and precipitation, the so-called urban precipitation
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Observationally constrained regional variations of shortwave absorption by iron oxides emphasize the cooling effect of dust Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-07 Vincenzo Obiso, María Gonçalves Ageitos, Carlos Pérez García-Pando, Jan P. Perlwitz, Gregory L. Schuster, Susanne E. Bauer, Claudia Di Biagio, Paola Formenti, Kostas Tsigaridis, Ron L. Miller
Abstract. The composition of soil dust aerosols derives from the mineral abundances in the parent soils that vary across dust source regions. Nonetheless, Earth system models (ESMs) have traditionally represented mineral dust as a globally homogeneous species. The growing interest in modeling dust mineralogy, facilitated by the recognized sensitivity of the dust climate impacts to composition, has
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Potential of using CO2 observations over India in a regional carbon budget estimation by improving the modelling system Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-07 Vishnu Thilakan, Dhanyalekshmi Pillai, Jithin Sukumaran, Christoph Gerbig, Haseeb Hakkim, Vinayak Sinha, Yukio Terao, Manish Naja, Monish Vijay Deshpande
Abstract. Devising effective national-level climate action plans requires a more detailed understanding of the regional distribution of sources and sinks of greenhouse gases. Due to insufficient observations and modelling capabilities, India's current carbon source–sink estimates are uncertain. This study uses a high-resolution Lagrangian transport model to examine the potential of available CO2 observations
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Droplet collection efficiencies inferred from satellite retrievals constrain effective radiative forcing of aerosol–cloud interactions Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-07 Charlotte M. Beall, Po-Lun Ma, Matthew W. Christensen, Johannes Mülmenstädt, Adam Varble, Kentaroh Suzuki, Takuro Michibata
Abstract. Process-oriented observational constraints for the anthropogenic effective radiative forcing due to aerosol–cloud interactions (ERFaci) are highly desirable because the uncertainty associated with ERFaci poses a significant challenge to climate prediction. The contoured frequency by optical depth diagram (CFODD) analysis supports the evaluation of model representation of cloud liquid-to-rain
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A better representation of volatile organic compound chemistry in WRF-Chem and its impact on ozone over Los Angeles Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-07 Qindan Zhu, Rebecca H. Schwantes, Matthew Coggon, Colin Harkins, Jordan Schnell, Jian He, Havala O. T. Pye, Meng Li, Barry Baker, Zachary Moon, Ravan Ahmadov, Eva Y. Pfannerstill, Bryan Place, Paul Wooldridge, Benjamin C. Schulze, Caleb Arata, Anthony Bucholtz, John H. Seinfeld, Carsten Warneke, Chelsea E. Stockwell, Lu Xu, Kristen Zuraski, Michael A. Robinson, J. Andrew Neuman, Patrick R. Veres, Jeff
Abstract. The declining trend in vehicle emissions has underscored the growing significance of volatile organic compound (VOC) emissions from volatile chemical products (VCPs). However, accurately representing VOC chemistry in simplified chemical mechanisms remains challenging due to its chemical complexity including speciation and reactivity. Previous studies have predominantly focused on VOCs from
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Secondary ice production – no evidence of efficient rime-splintering mechanism Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-07 Johanna S. Seidel, Alexei A. Kiselev, Alice Keinert, Frank Stratmann, Thomas Leisner, Susan Hartmann
Abstract. Mixed-phase clouds are essential for Earth’s weather and climate system. Ice multiplication via secondary ice production (SIP) is thought to be responsible for the observed strong increase in ice particle number concentration in mixed-phase clouds. In this study, we focus on the rime splintering also known as the Hallett–Mossop (HM) process, which still lacks physical and quantitative understanding
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Response patterns of moss to atmospheric nitrogen deposition and nitrogen saturation in an urban–agro–forest transition Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-07 Ouping Deng, Yuanyuan Chen, Jingze Zhao, Xi Li, Wei Zhou, Ting Lan, Dinghua Ou, Yanyan Zhang, Jiang Liu, Ling Luo, Yueqiang He, Hanqing Yang, Rong Huang
Abstract. Increasing trends of atmospheric nitrogen (N) deposition resulting from a large number of anthropogenic emissions of reactive N are dramatically altering the global biogeochemical cycle of N. Nitrogen uptake by mosses occurs mainly from the atmosphere, making it a competent bio-indicator of N deposition. However, high uncertainties exist when using mosses to indicate N deposition, especially
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Predicting Hygroscopic Growth of Organosulfur Aerosol Particles Using COSMOtherm Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-07 Zijun Li, Angela Buchholz, Noora Hyttinen
Abstract. Organosulfur (OS) compounds are important sulfur species in atmospheric aerosol particles, due to the reduction of global inorganic sulfur emissions. Understanding the physicochemical properties, such as hygroscopicity, of OS compounds is important for predicting future aerosol-cloud-climate interactions. However, their hygroscopicity is not yet well understood due to the scarcity of authentic
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Measurement Report: Urban Ammonia and Amines in Houston, Texas Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-07 Lee Tiszenkel, James Flynn, Shan-Hu Lee
Abstract. Ammonia and amines play critical roles in secondary aerosol formation, especially in urban environments. However, fast measurements of ammonia and amines in the atmosphere are very scarce. We measured ammonia and amines with a chemical ionization mass spectrometer (CIMS) at the urban center in Houston, Texas, the fourth most populated urban site in the United States, during October 2022.
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Vertical Profiles of Liquid Water Content in fog layers during the SOFOG3D experiment Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-07 Théophane Costabloz, Frédéric Burnet, Christine Lac, Pauline Martinet, Julien Delanoë, Susana Jorquera, Maroua Fathalli
Abstract. Observations collected during the SOuth west FOGs 3D experiment for processes study (SOFOG3D) field campaign are examined to document vertical profile of microphysical and thermodynamic properties of fog layers. In situ measurements collected under a tethered balloon provide 140 vertical profiles of liquid water content (LWC) from an adapted cloud droplet probe (CDP), which allow an exhaustive
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Technical note: Characterization of a single-beam gradient force aerosol optical tweezer for droplet trapping, phase transition monitoring, and morphology studies Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-06 Xiangyu Pei, Yikan Meng, Yueling Chen, Huichao Liu, Yao Song, Zhengning Xu, Fei Zhang, Thomas C. Preston, Zhibin Wang
Abstract. Single particle analysis is essential for a better understanding of the particle transformation process and to predict its environmental impact. In this study, we developed an aerosol optical tweezer (AOT) Raman spectroscopy system to investigate the phase state and morphology of suspended aerosol droplets in real time. The system comprises four modules: optical trapping, reaction, illumination
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Dynamical drivers of free-tropospheric ozone increases over equatorial Southeast Asia Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-06 Ryan M. Stauffer, Anne M. Thompson, Debra E. Kollonige, Ninong Komala, Habib Khirzin Al-Ghazali, Dian Yudha Risdianto, Ambun Dindang, Ahmad Fairudz bin Jamaluddin, Mohan Kumar Sammathuria, Norazura Binti Zakaria, Bryan J. Johnson, Patrick D. Cullis
Abstract. Positive trends in tropical free-tropospheric (FT) ozone are frequently ascribed to emissions growth, but less is known about the effects of changing dynamics. Extending a prior study (Thompson et al., 2021; https://doi.org/10.1029/2021JD034691; “T21”), we re-examine Southern Hemisphere Additional Ozonesondes (SHADOZ) ozone trends over equatorial Southeast Asia (ESEA), one of Earth's most
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Evaluation of the WRF-Chem Performance for gaseous pollutants over the United Arab Emirates Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-06 Yesobu Yarragunta, Diana Francis, Ricardo Fonseca, Narendra Nelli
Abstract. This study presents a comprehensive evaluation of the Weather Research and Forecasting model coupled with Chemistry (WRF-Chem) in simulating meteorological parameters and concentrations of gaseous pollutants across the United Arab Emirates (UAE) for the months of June and December 2018, representing the contrasting climatic conditions of summer and winter. The assessment of WRF-Chem performance
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Spatial-temporal patterns of anthropogenic and biomass burning contributions on air pollution and mortality burden changes in India from 1995 to 2014 Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-05-06 Bin Luo, Yuqiang Zhang, Tao Tang, Hongliang Zhang, Jianlin Hu, Jiangshan Mu, Wenxing Wang, Likun Xue
Abstract. Anthropogenic and biomass burning emissions are the major sources of ambient air pollution. India has experienced a dramatic deterioration in air quality over the past few decades, but no systematic assessment has been made to investigate the individual contributions of anthropogenic and biomass burning emissions. In this study, we conducted a pioneering comprehensive analysis of the long-term