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A sensitivity study on radiative effects due to the parameterization of dust optical properties in models Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-26 Ilias Fountoulakis, Alexandra Tsekeri, Stelios Kazadzis, Vassilis Amiridis, Angelos Nersesian, Maria Tsichla, Emmanouil Proestakis, Antonis Gkikas, Kyriakoula Papachristopoulou, Vasileios Barlakas, Claudia Emde, Bernhard Mayer
Abstract. Most of the dust models underestimate the load of the large dust particles, consider spherical shapes instead of irregular ones, and have to deal with a wide range of the dust refractive index (RI) to be used. This leads to an incomplete assessment of the dust radiative effects and dust-related impacts on climate and weather. The current work aims to provide an assessment, through a sensitivity
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Measurements of particle emissions of an A350-941 burning 100 % sustainable aviation fuels in cruise Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-26 Rebecca Katharina Dischl, Daniel Sauer, Christiane Voigt, Theresa Harlaß, Felicitas Sakellariou, Raphael Satoru Märkl, Ulrich Schumann, Monika Scheibe, Stefan Kaufmann, Anke Roiger, Andreas Dörnbrack, Charles Renard, Maxime Gauthier, Peter Swann, Paul Madden, Darren Luff, Mark Johnson, Denise Ahrens, Reetu Sallinen, Tobias Schripp, Georg Eckel, Uwe Bauder, Patrick Le Clercq
Abstract. In order to reduce aviation’s CO2 emissions and comply with current climate targets, the European Union plans a mandatory quota of 2 % sustainable aviation fuel (SAF) by 2025, rising up to ≥ 70 % SAF by 2050. In addition to a reduction of life cycle CO2-emissions the use of SAF can also have a positive impact on particle emissions and contrail properties. In this study we present observations
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An inverse model to correct for the effects of post-depositional processing on ice-core nitrate and its isotopes: model framework and applications at Summit, Greenland, and Dome C, Antarctica Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-25 Zhuang Jiang, Becky Alexander, Joel Savarino, Lei Geng
Abstract. Comprehensive evaluation of the effects of post-depositional processing is a prerequisite for appropriately interpreting ice-core records of nitrate concentration and isotopes. In this study, we developed an inverse model that uses archived snow/ice-core nitrate signals to reconstruct primary nitrate flux (i.e., the deposition flux of nitrate to surface snow that originates from long-range
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Quantifying CH4 emissions from coal mine aggregation areas in Shanxi, China, using TROPOMI observations and the wind-assigned anomaly method Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-25 Qiansi Tu, Frank Hase, Kai Qin, Jason Blake Cohen, Farahnaz Khosrawi, Xinrui Zou, Matthias Schneider, Fan Lu
Abstract. China stands out as a major contributor to anthropogenic methane (CH4) emissions, with coal mine methane (CMM) playing a crucial role. To control and reduce CH4 emissions, China has made a dedicated commitment and formulated an ambitious mitigation plan. To verify the progress made, the consistent acquisition of independent CH4 emission data is required. This paper aims to implement a wind-assigned
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Tropospheric aerosols over the western North Atlantic Ocean during the winter and summer campaigns of ACTIVATE 2020: Life cycle, transport, and distribution Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-25 Hongyu Liu, Bo Zhang, Richard H. Moore, Luke D. Ziemba, Richard A. Ferrare, Hyundeok Choi, Armin Sorooshian, David Painemal, Hailong Wang, Michael A. Shook, Amy Jo Scarino, Johnathan W. Hair, Ewan C. Crosbie, Marta A. Fenn, Taylor J. Shingler, Chris A. Hostetler, Gao Chen, Mary M. Kleb, Gan Luo, Fangqun Yu, Jason L. Tackett, Mark A. Vaughan, Yongxiang Hu, Glenn S. Diskin, John B. Nowak, Joshua P. DiGangi
Abstract. The Aerosol Cloud meTeorology Interactions oVer the western ATlantic Experiment (ACTIVATE) is a six-year (2019–2024) NASA Earth-Venture Suborbital-3 (EVS-3) mission to robustly characterize aerosol-cloud-meteorology interactions over the western North Atlantic Ocean (WNAO) during winter and summer seasons, with a focus on marine boundary layer clouds. This characterization requires understanding
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Investigating Carbonyl Compounds above the Amazon Rainforest using PTR-ToF-MS with NO+ Chemical Ionization Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-25 Akima Ringsdorf, Achim Edtbauer, Bruna Holanda, Christopher Poehlker, Marta O. Sá, Alessandro Araújo, Jürgen Kesselmeier, Jos Lelieveld, Jonathan Williams
Abstract. The photochemistry of carbonyl compounds significantly influences tropospheric chemical composition by altering the local oxidative capacity, free radical abundance in the upper troposphere, and formation of ozone, PAN, and secondary organic aerosol particles. Carbonyl compounds can be emitted directly from the biosphere into the atmosphere and are formed through photochemical degradation
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The governance of climate adaptation in metropolitan regions: A systematic review of emerging themes and issues Urban Clim. (IF 6.4) Pub Date : 2024-04-25 Margherita Gori Nocentini
Adaptation to climate change is increasingly part of urban policy agendas around the world. Most research has focused on municipal-level adaptation, while less is known about processes carried out at the metropolitan scale. This systematic review aims to identify the main themes emerging from the literature on climate adaptation governance in metropolitan areas, discussing their relevance in the context
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Quantifying high-resolution carbon emissions driven by land use change in the Guangdong-Hong Kong-Macao Greater Bay Area Urban Clim. (IF 6.4) Pub Date : 2024-04-25 Yanpeng Cai, Shenglan Su, Pan Zhang, Ming Chen, Yongyang Wang, Yulei Xie, Qian Tan
Accurate research on carbon emission spatial distribution is vital for achieving carbon neutrality. Previous studies suffered from scale effects, demanding enhanced resolution. This study collected and computed land use carbon emission data for the Guangdong-Hong Kong-Macao Greater Bay Area (GBA). It also introduced a novel method to downscale this data into 30 m raster format using night light and
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Decoupling government spending from carbon emissions: A spatio-temporal analysis of 283 Chinese cities Urban Clim. (IF 6.4) Pub Date : 2024-04-25 Hao Feng, Yuehan Yu, Rong Yuan
A comprehensive evaluation of government spending efficiency and its connection to emissions reduction is vital for sustainable green economic progress. However, the precise nature of the decoupling relationship between carbon emissions and government spending at the city level remains uncertain. Here, using the panel data from 283 cities covering the period from 2007 to 2020, we employ diverse methodologies
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Unravelling regional development through the production-living-ecological perspective: Assessing heterogeneity and expert insights Urban Clim. (IF 6.4) Pub Date : 2024-04-25 Wanhao Zhang, Qiong Yuan, Helen Cai
This study delves into the spatial heterogeneity of Production-Living-Ecological Spaces (PLES) at the township scale in Zhejiang, China. By leveraging a comprehensive array of spatial data and advanced analytical methods, we uncover distinct patterns and variations within these spaces. Our analysis brings to light the complex interactions between human activities, land use, and ecological factors in
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Climate walking and linear mixed model statistics for the seasonal outdoor thermophysiological comfort assessment in Lisbon Urban Clim. (IF 6.4) Pub Date : 2024-04-25 Tiago Silva, Cláudia Reis, Diogo Braz, João Vasconcelos, António Lopes
To measure urban outdoor pedestrian thermophysiological comfort mobile roving missions were conducted in all seasons of the year during the day and at night. Six routes were chosen, representing areas of the city with varying urban morphological layouts. The thermal comfort conditions were analysed using the Local Climate Zone spatial scale. This enabled the identification of typologies of areas where
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Pollutants and weathering compounds on medieval bricks of historic buildings from Brasov (Transylvania, Romania) Urban Clim. (IF 6.4) Pub Date : 2024-04-25 Alexandru Bogdan, Lorena Aliana Cioban, Dana Maria Copolovici, Dorina Chambre, Lucian Copolovici
Urban pollution significantly influences historic building preservation via chemical, physical, and biological processes. To plan heritage structure restoration, we must study fired brick mineralogy and its correlation with firing temperature. We must also examine how atmospheric pollutants have affected surface composition over time. This study analyzes medieval bricks from seven medieval buildings
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Design rainfalls under climate change scenarios in South East Queensland, Australia: A Brisbane River case study Urban Clim. (IF 6.4) Pub Date : 2024-04-25 Marcos Abilio Medeiros de Saboia, Fernanda Helfer
This study updates design rainfalls for the Brisbane River Basin, Australia, employing rainfall data from eight CMIP5 General Circulation Models (GCMs) across two Representative Concentration Pathways (RCP 4.5 and RCP 8.5) and four future timeframes (2016–2045, 2036–2065, 2056–2085, and 2075–2104), totalling 64 climate futures. Future design rainfalls were computed for Annual Exceedance Probabilities
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Driving toward sustainable cities: The interplay between Chinese emerging corporate ESG performance and climate finance in achieving low-carbon development Urban Clim. (IF 6.4) Pub Date : 2024-04-25 Muxin Liu, Changyou Xia, Hailin Lan, Zhihao Gao, Xiaojie Yu, Li Wang, Xi Liang, Yi Wu
Climate finance plays a pivotal role in directing increased capital flow toward climate change mitigation and adaptation activities. Many emerging enterprises have grown rapidly under the influence of climate finance policies, contributing to urban low-carbon transition. Therefore, it is important to explore the interrelationships between climate finance, enterprise low-carbon transformations, and
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Multi-factor PM2.5 concentration optimization prediction model based on decomposition and integration Urban Clim. (IF 6.4) Pub Date : 2024-04-25 Hong Yang, Wenqian Wang, Guohui Li
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Warming climate is helping human beings run faster, jump higher and throw farther through less dense air npj Clim. Atmos. Sci. (IF 9.0) Pub Date : 2024-04-24 Shixin Wang, Tiexi Chen, Jing-Jia Luo, Meng Gao, Hongchao Zuo, Fenghua Ling, Jianlin Hu, Chaoxia Yuan, Yuanjian Yang, Lina Wang, Huaming Huang, Naiang Wang, Yaojun Li, Toshio Yamagata
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Gravity waves generated by the Hunga Tonga–Hunga Ha′apai volcanic eruption and their global propagation in the mesosphere/lower thermosphere observed by meteor radars and modeled with the High-Altitude general Mechanistic Circulation Model Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-24 Gunter Stober, Sharon L. Vadas, Erich Becker, Alan Liu, Alexander Kozlovsky, Diego Janches, Zishun Qiao, Witali Krochin, Guochun Shi, Wen Yi, Jie Zeng, Peter Brown, Denis Vida, Neil Hindley, Christoph Jacobi, Damian Murphy, Ricardo Buriti, Vania Andrioli, Paulo Batista, John Marino, Scott Palo, Denise Thorsen, Masaki Tsutsumi, Njål Gulbrandsen, Satonori Nozawa, Mark Lester, Kathrin Baumgarten, Johan
Abstract. The Hunga Tonga–Hunga Ha′apai volcano erupted on 15 January 2022, launching Lamb waves and gravity waves into the atmosphere. In this study, we present results using 13 globally distributed meteor radars and identify the volcanogenic gravity waves in the mesospheric/lower thermospheric winds. Leveraging the High-Altitude Mechanistic general Circulation Model (HIAMCM), we compare the global
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A climatology of cold pools distinct from background turbulence at the Eastern North Atlantic observations site Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-24 Mark A. Smalley, Mikael K. Witte, Jong-Hoon Jeong, Maria J. Chinita
Abstract. We develop an algorithm to identify cold pools at the DOE’s Eastern North Atlantic (ENA) site on Graciosa Island and examine the statistics of retrieved cold pools for the entire observational record from late 2016 to 2023. The retrieval strategy relies on leveraging above-background bivariate deviations in near-surface temperature and water vapor mixing ratio from the ENA station time series
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Simulated phase state and viscosity of secondary organic aerosols over China Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-23 Zhiqiang Zhang, Ying Li, Haiyan Ran, Junling An, Yu Qu, Wei Zhou, Weiqi Xu, Weiwei Hu, Hongbin Xie, Zifa Wang, Yele Sun, Manabu Shiraiwa
Abstract. Secondary organic aerosols (SOAs) can exist in liquid, semi-solid, or amorphous solid states. Chemical transport models (CTMs), however, usually assume that SOA particles are homogeneous and well-mixed liquids, with rapid establishment of gas–particle equilibrium for simulations of SOA formation and partitioning. Missing the information of SOA phase state and viscosity in CTMs impedes accurate
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Extreme ozone episodes in a major Mediterranean urban area Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-23 Jordi Massagué, Eduardo Torre-Pascual, Cristina Carnerero, Miguel Escudero, Andrés Alastuey, Marco Pandolfi, Xavier Querol, Gotzon Gangoiti
Abstract. This study analyses three extreme ozone (O3) episodes that occurred in Barcelona (NE Spain) during the summers of 2015, 2018, and 2019. These episodes exceeded the EU's hourly information threshold (180 µg m−3) for the first time since at least the year 2000, raising concerns due to Barcelona's large population. By employing experimental data and various modelling tools, our main objective
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Hygroscopic Growth and Activation Changed Submicron Aerosol Composition and Properties in North China Plain Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-23 Weiqi Xu, Ye Kuang, Wanyun Xu, Zhiqiang Zhang, Biao Luo, Xiaoyi Zhang, Jiangchuang Tao, Hongqin Qiao, Li Liu, Yele Sun
Abstract. Aerosol hygroscopic growth and activation under high relative humidity (RH) conditions significantly influence the physicochemical properties of submicron aerosols (PM1). However, this process remains poorly characterized due to limited measurements. To address this gap, we deployed an advanced aerosol-fog sampling system that automatically switched between PM1, PM2.5, and TSP inlets at a
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How to observe the small-scale spatial distribution of surface solar irradiance, and how is it influenced by cumulus clouds? Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-23 Zili He, Quentin Libois, Najda Villefranque, Hartwig Deneke, Jonas Witthuhn, Fleur Couvreux
Abstract. The amount of solar radiation reaching the Earth surface (SSI) is critical for a variety of applications, ranging from surface-atmosphere interactions to solar energy. SSI is characterized by a large spatiotemporal variability, in particular in the presence of broken clouds. This results in complex spatial patterns of shadows and sunlight directly related to clouds' geometry and physical
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Spatial and temporal variation in long-term temperature and water vapor in the mesopause Region Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-23 Chaman Gul, Shichang Kang, Yuanjian Yang, Xinlei Ge, Dong Guo
Abstract. Mesopause is the zone of minimum temperature in Earth’s atmosphere. Temperature variation in this region is one of the important responsible factors for chemical and physical changes including spatiotemporal variability in water vapor content. Twenty-two years of monthly temperature and water vapor data were used from Sounding of the Atmosphere using Broadband Emission Radiometry. Eight months
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Climate variability can outweigh the influence of climate mean changes for extreme precipitation under global warming Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-23 Kalle Nordling, Nora Fahrenbach, Bjørn Samset
Abstract. As global warming progresses, weather conditions like daily temperature and precipitation are changing due to changes in their means and distributions of day-to-day variability. In this study, we show that changes in variability have a stronger influence on the number of extreme precipitation days than the change in the mean state in many locations. We analyze daily precipitation and maximum
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Numerical modeling of the distinct urbanization impact over Singapore during two contrasting weather scenarios Urban Clim. (IF 6.4) Pub Date : 2024-04-24 Jagabandhu Panda, Tieh-Yong Koh, Asmita Mukherjee, Xian-Xiang Li, Leslie K. Norford
Urban growth over Singapore is noticeable with increase in built-up area and significant sprawling with more than two-fold growth. Effects of urbanization patterns are investigated in two scenarios named as dry and wet, during the inter-monsoon period under high convective and low advection conditions. Weather Research and Forecasting model has been used with a finer resolution. Urban effects have
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A systematic and bibliometric review of bioretention system (BRS) for urban ecosystem regulation services Urban Clim. (IF 6.4) Pub Date : 2024-04-24 Jin Su, Mo Wang, Dongqing Zhang, Chuanhao Sun, Xiaolong Zhao, Mohd Adib Bin Mohammad Razi
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Evaluating impacting factors of economic resilience across major Japan port cities Urban Clim. (IF 6.4) Pub Date : 2024-04-23 Lie Sun, Zhiheng Chen, Yifan Li, Tomoya Kawasaki
Japan relies heavily on its port cities for global economic integration and societal support, given its extensive coastline. These ports handle most of the country’s imports, including the majority of its energy needs and more than half of its food requirements, being pivotal in urban economic resilience and sustainability. However, the COVID-19 pandemic, posed severe challenges to these ports by disrupting
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Wetting-warming climate increases ecosystem carbon use efficiency of Chinese arid and semi-arid ecosystem Agric. For. Meteorol. (IF 6.2) Pub Date : 2024-04-23 Yihan Sun, Guang Zhao, Zhoutao Zheng, Yixuan Zhu, Juntao Zhu, Yangping Di, Jie Gao, Mengke Cai, Yangjian Zhang
Co-limited by environmental constraints, ecosystems in arid and semi-arid regions (ASARs) are extremely sensitive to climate change. A warmer and wetter climate trend has been observed extensively in ASARs of China, but whether and how the changing climate has influenced ecosystem carbon allocation and balance remains largely unclear. To bridge this knowledge gap, we conducted a comprehensive study
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Simulation of soil temperature under maize: An inter-comparison among 33 maize models Agric. For. Meteorol. (IF 6.2) Pub Date : 2024-04-23 Bruce A. Kimball, Kelly R. Thorp, Kenneth J. Boote, Claudio Stockle, Andrew E. Suyker, Steven R. Evett, David K. Brauer, Gwen G. Coyle, Karen S. Copeland, Gary W. Marek, Paul D. Colaizzi, Marco Acutis, Sotirios Archontoulis, Faye Babacar, Zoltán Barcza, Bruno Basso, Patrick Bertuzzi, Massimiliano De Antoni Migliorati, Benjamin Dumont, Jean-Louis Durand, Nándor Fodor, Thomas Gaiser, Sebastian Gayler
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Do AI models produce better weather forecasts than physics-based models? A quantitative evaluation case study of Storm Ciarán npj Clim. Atmos. Sci. (IF 9.0) Pub Date : 2024-04-22 Andrew J. Charlton-Perez, Helen F. Dacre, Simon Driscoll, Suzanne L. Gray, Ben Harvey, Natalie J. Harvey, Kieran M. R. Hunt, Robert W. Lee, Ranjini Swaminathan, Remy Vandaele, Ambrogio Volonté
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Uncertainties in cloud-radiative heating within an idealized extratropical cyclone Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-22 Behrooz Keshtgar, Aiko Voigt, Bernhard Mayer, Corinna Hoose
Abstract. Cloud-radiative heating (CRH) within the atmosphere affects the dynamics and predictability of extratropical cyclones. However, CRH is uncertain in numerical weather prediction and climate models, and this could affect model predictions of extratropical cyclones. In this paper, we present a systematic quantification of CRH uncertainties. To this end, we study an idealized extratropical cyclone
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Characterization of refractory aerosol particles collected in the tropical upper troposphere–lower stratosphere (UTLS) within the Asian tropopause aerosol layer (ATAL) Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-22 Martin Ebert, Ralf Weigel, Stephan Weinbruch, Lisa Schneider, Konrad Kandler, Stefan Lauterbach, Franziska Köllner, Felix Plöger, Gebhard Günther, Bärbel Vogel, Stephan Borrmann
Abstract. Aerosol particles with diameters larger than 40 nm were collected during the flight campaign StratoClim 2017 within the Asian tropopause aerosol layer (ATAL) of the 2017 monsoon anticyclone above the Indian subcontinent. A multi-impactor system was installed on board the aircraft M-55 Geophysica, which was operated from Kathmandu, Nepal. The size and chemical composition of more than 5000
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Impact of HO2∕RO2 ratio on highly oxygenated α-pinene photooxidation products and secondary organic aerosol formation potential Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-22 Yarê Baker, Sungah Kang, Hui Wang, Rongrong Wu, Jian Xu, Annika Zanders, Quanfu He, Thorsten Hohaus, Till Ziehm, Veronica Geretti, Thomas J. Bannan, Simon P. O'Meara, Aristeidis Voliotis, Mattias Hallquist, Gordon McFiggans, Sören R. Zorn, Andreas Wahner, Thomas F. Mentel
Abstract. Highly oxygenated molecules (HOMs) from the atmospheric oxidation of biogenic volatile organic compounds are important contributors to secondary organic aerosol (SOA). Organic peroxy radicals (RO2) and hydroperoxy radicals (HO2) are key species influencing the HOM product distribution. In laboratory studies, experimental requirements often result in overemphasis on RO2 cross-reactions compared
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Influence of cloudy/clear-sky partitions, aerosols and geometry on the recent variability of surface solar irradiance's components in northern France Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-22 Gabriel Chesnoiu, Nicolas Ferlay, Isabelle Chiapello, Frédérique Auriol, Diane Catalfamo, Mathieu Compiègne, Thierry Elias, Isabelle Jankowiak
Abstract. The surface solar irradiance (SSI) is a fundamental parameter whose components (direct and diffuse) and variabilities are highly influenced by changes in atmospheric content and scene’s parameters. The respective importance of cloudy sky conditions and atmospheric aerosols on SSI evolutions is region dependent and only partially quantified. Here we provide a comprehensive analysis of SSI
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Glaciation of Mixed-Phase Clouds: Insights from Bulk Model and Bin-Microphysics Large-Eddy Simulation Informed by Laboratory Experiment Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-22 Aaron Wang, Steve Krueger, Sisi Chen, Mikhail Ovchinnikov, Will Cantrell, Raymond A. Shaw
Abstract. Mixed-phase clouds affect precipitation and radiation forcing differently from liquid and ice clouds, posing greater challenges to their representation in numerical simulations. Recent laboratory experiments using the Pi Cloud Chamber explored cloud glaciation conditions based on increased injection of ice nucleating particles. In this study, we use two approaches to reproduce the results
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Cooling radiative forcing effect enhancement of atmospheric amines-mineral particle caused by heterogeneous uptake and oxidation Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-22 Weina Zhang, Jianhua Mai, Zhichao Fan, Yongpeng Ji, Yuemeng Ji, Guiying Li, Yanpeng Gao, Taicheng An
Abstract. Warming radiative forced effect (RFE) derived from atmospheric amines attracts lots of attentions because of their contributions to brown carbons. Herein, the enhanced influence of amines (methyl-, dimethyl-, and trimethylamine) on cooling RFE of mineral particles is first confirmed at visible wavelengths. Present results state heterogeneous uptake and oxidation reactions of atmospheric amines
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SO2 emissions and lifetimes derived from TROPOMI observations over India using a flux-divergence method Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-22 Yutao Chen, Ronald J. van der A, Jieying Ding, Henk Eskes, Jason E. Williams, Nicolas Theys, Athanasios Tsikerdekis, Pieternel F. Levelt
Abstract. The rapid development of the economy and the implementation of environmental policies adapted in India has led to fast changes of regional SO2 emissions. We present a monthly SO2 emission inventory for India covering December 2018 to November 2023 based on the TROPOMI Level-2 COBRA SO2 dataset, by using an improved flux-divergence method and estimated local SO2 lifetime which includes both
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Effect of glazing on the indoor environment in a lift-up canteen Urban Clim. (IF 6.4) Pub Date : 2024-04-22 Dongjin Cui, Yuning Lou, Yaxing Du, Lei Yuan, Cheuk Ming Mak
As one of the typical architectural features in hot and humid regions, the lift-up design can provide effective shading and sufficient pedestrian-level ventilation, which is favorable for building functions that require natural ventilation, such as the canteen. However, it is unknown whether the thermal environment and air quality of lift-up areas meets the indoor environment requirements along with
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Identifying the mechanisms by which irrigation can cool urban green spaces in summer Urban Clim. (IF 6.4) Pub Date : 2024-04-22 Pui Kwan Cheung, Naika Meili, Kerry A. Nice, Stephen J. Livesley
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Declined benefit of earlier spring greening on summer growth in northern ecosystems under future scenarios Agric. For. Meteorol. (IF 6.2) Pub Date : 2024-04-22 Zhi Huang, Lei Zhou, Duwei Zhong, Pai Liu, Yonggang Chi
Widespread spring warming and an earlier start of the growing season (SOS) compensated for spring vegetation productivity, simultaneously resulting in reduced retention of accessible nutrition and water resources in subsequent seasons. In this case, however, it is unknown whether the increased summer growth induced by earlier SOS will be sustained. Here, we analyzed the legacy effects of SOS on summer
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Wildfire impacts on the carbon budget of a managed Nordic boreal forest Agric. For. Meteorol. (IF 6.2) Pub Date : 2024-04-22 Julia Kelly, Natascha Kljun, Zhanzhang Cai, Stefan H. Doerr, Claudio D'Onofrio, Thomas Holst, Irene Lehner, Anders Lindroth, Shangharsha Thapa, Patrik Vestin, Cristina Santín
Wildfire is one of the most important disturbances affecting boreal forests. Most previous research on boreal forest fires has occurred in North American forests which have different fire regimes, tree species and are less intensively managed than their Eurasian counterparts. Recent extreme fire years have highlighted the vulnerability of the Nordic boreal forest to climatic shifts that are increasing
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A single-photon lidar observes atmospheric clouds at decimeter scales: resolving droplet activation within cloud base npj Clim. Atmos. Sci. (IF 9.0) Pub Date : 2024-04-20 Fan Yang, Alex B. Kostinski, Zeen Zhu, Katia Lamer, Edward Luke, Pavlos Kollias, Yong Meng Sua, Pei Hou, Raymond A. Shaw, Andrew M. Vogelmann
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Beyond assimilation of leaf area index: Leveraging additional spectral information using machine learning for site-specific soybean yield prediction Agric. For. Meteorol. (IF 6.2) Pub Date : 2024-04-21 Deborah V. Gaso, Dilli Paudel, Allard de Wit, Laila A. Puntel, Adugna Mullissa, Lammert Kooistra
Assimilating external observations of crop state in cropping system models is essential for making spatially explicit predictions of crop variables relevant in precision agriculture. Satellite-based leaf area index (LAI) estimates have been the most frequent variable used as a proxy of actual crop growth. However, additional information beyond LAI, like canopy N content, water content, and structure
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Observation and study of consecutive dust storms in the Taklimakan desert from March 16 to 27, 2022, using reanalysis models and lidar Atmos. Res. (IF 5.5) Pub Date : 2024-04-21 Mohamed Elshora, Haiyun Xia, Lian Su, Tianwen Wei
A series of severe dust storms hit the Taklimakan desert between March 16 and 27, 2022, significantly deteriorating air quality throughout China. This study presents a comprehensive analysis of the vertical structure of aerosols during these dust storms, as well as their causes and impacts on China's regional and city-scale air quality, utilizing data from reanalysis models, coherent Doppler wind lidar
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Late Pleistocene island weathering and precipitation in the Western Pacific Warm Pool npj Clim. Atmos. Sci. (IF 9.0) Pub Date : 2024-04-18 Zhaojie Yu, Jiaoyang Ruan, Lina Song, Kyung-Sook Yun, Xiaojie Tang, Christophe Colin, David J. Wilson, Haowen Dang, Pedro N. DiNezio, Fengming Chang, Xiaolei Pang, Franck Bassinot, Shiming Wan
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Volatile organic compounds (VOCs) emission interferes with real-time regulatory monitoring of ozone in urban atmosphere Urban Clim. (IF 6.4) Pub Date : 2024-04-20 Xiaoguang Wang, Ke Hu, Yanfen Hao, Yongguang Yin, Jing Xu, Yuanhao Li, Fengjie Chen, Bolei Chen, Lufeng Chen, Qijie Li, Qiongyu Liu, Huiping Cai, Yong Liang, Pu Wang, Shengwen Liang
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Energy and environment: How could energy-consuming transition promote the synergy of pollution reduction and carbon emission reduction in China? Urban Clim. (IF 6.4) Pub Date : 2024-04-20 Dongri Han, Caifeng Bi, Hongshuang Wu, Ping Hao
In order to attain the mutually reinforcing advantages of pollution reduction and carbon emissions, it is imperative to give precedence to the prevention and control of carbon pollution from its source, hence promoting a forward-thinking approach to governance. Hence, there is an urgent need for theoretical explanation and empirical verification to determine whether the energy-consuming right trading
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Connectivity of evapotranspiration processes in a Brazilian dryland reservoir using remote sensing Agric. For. Meteorol. (IF 6.2) Pub Date : 2024-04-20 Italo Sampaio Rodrigues, Gláuber Pontes Rodrigues, Carlos Alexandre Gomes Costa, Christopher Hopkinson, José Carlos de Araújo
Understanding the combined open water reservoir evaporation and riparian vegetation transpiration (evapotranspiration) is important for water resource management in semiarid regions like the Brazilian Dryland region. Existing research has explored reductions in open water evaporation due to riparian vegetation transpiration, but evidence for this interdependence in this region is not well understood
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A modeling study of aerosol effect on summer nocturnal convective precipitation in Beijing Atmos. Res. (IF 5.5) Pub Date : 2024-04-20 Yue Zhou, Chuanfeng Zhao, Yue Sun, Qiuyan Du, Chun Zhao, Yikun Yang, Zhanshan Ma, Hao Fan, Xin Zhao, Jie Yang, Haotian Zhang
Using the WRF model with chemistry (WRF-Chem), this study investigates the potential contributions of aerosol direct (ADE) and aerosol indirect (AIE) effects on the nocturnal convective precipitation occurred on 9–10 September 2019 in Beijing. It shows that ADE plays a more important role in spatiotemporal changes of heavy precipitation than AIE in urban areas. Further simulation analyses show that
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Impacts of internal variability on winter temperature fluctuations over the Tibetan Plateau Atmos. Res. (IF 5.5) Pub Date : 2024-04-20 Ye Yang, Qinglong You, Zhiyan Zuo, Shichang Kang, Panmao Zhai
The climate comprises an externally forced component and internal variability within the climate system. This variability arises from interactions among climate subsystems, significantly impacting climate change, particularly over the Tibetan Plateau (TP). Therefore, understanding the mechanisms governing TP temperature responses to internal variability is crucial. In this study, winter temperature
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Air mass transport to the tropical western Pacific troposphere inferred from ozone and relative humidity balloon observations above Palau Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-19 Katrin Müller, Peter von der Gathen, Markus Rex
Abstract. The transport history of tropospheric air masses above the tropical western Pacific (TWP) is reflected by the local ozone and relative humidity (RH) characteristics. In boreal winter, the TWP is the main global entry point for air masses into the stratosphere and therefore a key region of atmospheric chemistry and dynamics. Our study aims to identify air masses with different pathways to
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First evaluation of the GEMS formaldehyde product against TROPOMI and ground-based column measurements during the in-orbit test period Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-19 Gitaek T. Lee, Rokjin J. Park, Hyeong-Ahn Kwon, Eunjo S. Ha, Sieun D. Lee, Seunga Shin, Myoung-Hwan Ahn, Mina Kang, Yong-Sang Choi, Gyuyeon Kim, Dong-Won Lee, Deok-Rae Kim, Hyunkee Hong, Bavo Langerock, Corinne Vigouroux, Christophe Lerot, Francois Hendrick, Gaia Pinardi, Isabelle De Smedt, Michel Van Roozendael, Pucai Wang, Heesung Chong, Yeseul Cho, Jhoon Kim
Abstract. The Geostationary Environment Monitoring Spectrometer (GEMS) on board GEO-KOMPSAT-2B was launched in February 2020 and has been monitoring atmospheric chemical compositions over Asia. We present the first evaluation of the operational GEMS formaldehyde (HCHO) vertical column densities (VCDs) during and after the in-orbit test (IOT) period (August–October 2020) by comparing them with the products
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A bottom-up emission estimate for the 2022 Nord Stream gas leak: derivation, simulations, and evaluation Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-19 Rostislav Kouznetsov, Risto Hänninen, Andreas Uppstu, Evgeny Kadantsev, Yalda Fatahi, Marje Prank, Dmitrii Kouznetsov, Steffen Manfred Noe, Heikki Junninen, Mikhail Sofiev
Abstract. A major release of methane from the Nord Stream pipelines occurred in the Baltic Sea on 26 September 2022. Elevated levels of methane were recorded at many observational sites in northern Europe. While it is relatively straightforward to estimate the total emitted amount from the incidents (around 330 kt of methane), the detailed vertical and temporal distributions of the releases are needed
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Shipping and algae emissions have a major impact on ambient air mixing ratios of non-methane hydrocarbons (NMHCs) and methanethiol on Utö Island in the Baltic Sea Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-19 Heidi Hellén, Rostislav Kouznetsov, Kaisa Kraft, Jukka Seppälä, Mika Vestenius, Jukka-Pekka Jalkanen, Lauri Laakso, Hannele Hakola
Abstract. The mixing ratios of highly volatile organic compounds (VOCs) were studied on Utö Island in the Baltic Sea. Measurements of non-methane hydrocarbons (NMHCs) and methanethiol (unexpectedly found during the experiment) were conducted using an in situ thermal desorption–gas chromatography–flame ionization detector/mass spectrometer (TD-GC-FID/MS) from March 2018 until March 2019. The mean mixing
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Assessment of satellite observation-based wildfire emissions inventories using TROPOMI data and IFS-COMPO model simulations Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-19 Adrianus de Laat, Vincent Huijnen, Niels Andela, Matthias Forkel
Abstract. Fires are a key component of the global carbon cycle and humans are changing their characteristics. Fire emission monitoring is important to keep track of those changes and TROPOMI satellite observations of tropospheric nitrogen dioxide, carbon monoxide and the absorbing aerosol index can be used to quantify and verify the accuracy and precision of global wildfire emission estimates on a
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Assessing the global contribution of marine, terrestrial bioaerosols, and desert dust to ice-nucleating particle concentrations Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-19 Marios Chatziparaschos, Stelios Myriokefalitakis, Nikos Kalivitis, Nikos Daskalakis, Athanasios Nenes, María Gonçalves Ageitos, Montserrat Costa-Surós, Carlos Pérez García-Pando, Mihalis Vrekoussis, Maria Kanakidou
Abstract. Aerosol-cloud interactions, and particularly ice crystals in mixed-phase clouds (MPC), stand as a key source of uncertainty in climate change assessments. State-of-the-art laboratory-based parameterizations were introduced into a global chemistry-transport model to investigate the contribution of mineral dust, marine primary organic aerosol (MPOA), and terrestrial primary biological aerosol
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Observed improvement in air quality in Delhi during 2011–2021: Impact of mitigation measures Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-19 Yesobu Yarragunta, Latha Radhadevi, Aditi Rathod, Siddhartha Singh, Murthy Bandaru
Abstract. Assessing long-term air quality trends helps evaluate the effectiveness of adopted air pollution control policies. A decade of SAFAR observations revealed that the trend of particulate matter (PM2.5 and PM10) in Delhi shows a reduction of 2.98 ± 0.53 µg/m3/y (4.91 ± 1.01 µg/m3/y) or overall 29 % (23.7 %) reduction between 2011 and 2021 while vehicles almost doubled but with the implementation
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Opposite effects of aerosols and meteorological parameters on warm clouds in two contrasting regions over eastern China Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-18 Yuqin Liu, Tao Lin, Jiahua Zhang, Fu Wang, Yiyi Huang, Xian Wu, Hong Ye, Guoqin Zhang, Xin Cao, Gerrit de Leeuw
Abstract. The sensitivity (S) of cloud parameters to the influence of different aerosol and meteorological parameters has in most previous aerosol–cloud interaction (aci) studies been addressed using traditional statistical methods. In the current study, relationships between cloud droplet effective radius (CER) and aerosol optical depth (AOD, used as a proxy for cloud condensation nuclei, CCN), i
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Abrupt excursions in water vapor isotopic variability at the Pointe Benedicte observatory on Amsterdam Island Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-18 Amaelle Landais, Cécile Agosta, Françoise Vimeux, Olivier Magand, Cyrielle Solis, Alexandre Cauquoin, Niels Dutrievoz, Camille Risi, Christophe Leroy-Dos Santos, Elise Fourré, Olivier Cattani, Olivier Jossoud, Bénédicte Minster, Frédéric Prié, Mathieu Casado, Aurélien Dommergue, Yann Bertrand, Martin Werner
Abstract. In order to complement the picture of the atmospheric water cycle in the Southern Ocean, we have continuously monitored water vapor isotopes since January 2020 on Amsterdam Island in the Indian Ocean. We present here the first 2-year long water vapor isotopic record at this site. We show that the water vapor isotopic composition largely follows the water vapor mixing ratio, as expected in
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CO anthropogenic emissions in Europe from 2011 to 2021: insights from Measurement of Pollution in the Troposphere (MOPITT) satellite data Atmos. Chem. Phys. (IF 6.3) Pub Date : 2024-04-18 Audrey Fortems-Cheiney, Gregoire Broquet, Elise Potier, Robin Plauchu, Antoine Berchet, Isabelle Pison, Hugo Denier van der Gon, Stijn Dellaert
Abstract. We have used the variational inversion drivers of the recent Community Inversion Framework (CIF), coupled to a European configuration of the CHIMERE regional chemistry transport model and its adjoint to derive carbon monoxide (CO) emissions from Measurement of Pollution in the Troposphere (MOPITT) TIR-NIR (thermal-infrared near-infrared) observations, for a period of over 10 years