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Tropical and Boreal Forest – Atmosphere Interactions: A Review Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2022-01-01 Paulo Artaxo,Hans-Christen Hansson,Meinrat O. Andreae,Jaana Bäck,Eliane Gomes Alves,Henrique M. J. Barbosa,Frida Bender,Efstratios Bourtsoukidis,Samara Carbone,Jinshu Chi,Stefano Decesari,Viviane R. Després,Florian Ditas,Ekaterina Ezhova,Sandro Fuzzi,Niles J. Hasselquist,Jost Heintzenberg,Bruna A. Holanda,Alex Guenther,Hannele Hakola,Liine Heikkinen,Veli-Matti Kerminen,Jenni Kontkanen,Radovan Krejci
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Tellus A and B with Stockholm University Press Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2021-12-27 Abdel Hannachi, H.-C. Hansson
(2021). Tellus A and B with Stockholm University Press. Tellus B: Chemical and Physical Meteorology: Vol. 73, No. 1, pp. 1-1.
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Assessment of COVID-19 effects on satellite-observed aerosol loading over China with machine learning Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2021-10-29 Hendrik Andersen, Jan Cermak, Roland Stirnberg, Julia Fuchs, Miae Kim, Eva Pauli
Abstract Aerosols are a critical component of the climate system and a risk to human health. Here, the lockdown response to the coronavirus outbreak is used to analyse effects of dramatic reduction in anthropogenic aerosol sources on satellite-retrieved aerosol optical depth (AOD). A machine learning model is applied to estimate daily AOD during the initial lockdown in China in early 2020. The model
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Transport and chemistry of isoprene and its oxidation products in deep convective clouds Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2021-10-01 Roman Bardakov, Joel A. Thornton, Ilona Riipinen, Radovan Krejci, Annica M. L. Ekman
Abstract Deep convective clouds can transport trace gases from the planetary boundary layer into the upper troposphere where subsequent chemistry may impact aerosol particle formation and growth. In this modelling study, we investigate processes that affect isoprene and its oxidation products injected into the upper troposphere by an isolated deep convective cloud in the Amazon. We run a photochemical
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Role of river discharge and warming on ocean acidification and pCO2 levels in the Bay of Bengal Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2021-09-01
Abstract Shifts in surface ocean pCO2 and pH are important controls governing global climate. Based on the linear relationship of observed surface pH and pCO2 with sea surface temperature (SST), sea surface salinity (SSS) and Chlorophyll-a (Chl-a) multiple linear regression equations were developed. Based on remote sensing SST, Chl-a and model-derived SSS, pH and pCO2 data were derived from 1998 to
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Influence of observation angle change on satellite retrieval of aerosol optical depth Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2021-07-13
Abstract Use of multi-angle sensors, which can perform ground observations in different view directions, provides an important technical means to acquire more comprehensive and detailed remote sensing information. This study explored the effect of angle changes on satellite-based aerosol optical depth (AOD) retrieval using 2016–2018 Multi-angle Imaging SpectroRadiometer (MISR) data in the Yangtze River
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The impact of a foehn wind on PM10 concentrations and the urban boundary layer in complex terrain: a case study from Kraków, Poland Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2021-06-22 Piotr Sekuła, Anita Bokwa, Zbigniew Ustrnul, Mirosław Zimnoch, Bogdan Bochenek
Abstract Kraków, Poland, is a city with poor air quality, located in the large Wisła (Vistula) valley, and affected by a foehn wind from the Tatra Mountains. We analyzed 14 long episodes of the foehn from the periods Sep 2017 - Apr 2018 and Sep 2018 - Apr 2019. Data used included measurements of PM10 (i.e. particulate matter with an aerodynamic diameter up to 10 µm) concentrations) concentrations,
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Evolution of observed ozone, trace gases, and meteorological variables over Arrival Heights, Antarctica (77.8°S, 166.7°E) during the 2019 Antarctic stratospheric sudden warming Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2021-06-08 Dan Smale, Susan E. Strahan, Richard Querel, Udo Frieß, Gerald E. Nedoluha, Sylvia E. Nichol, John Robinson, Ian Boyd, Michael Kotkamp, R. Michael Gomez, Mark Murphy, Hue Tran, Jamie McGaw
Abstract We use ground-based spectroscopic remote sensing measurements of the stratospheric trace gases O3, HCl, ClO, BrO, HNO3, NO2, OClO, ClONO2, N2O and HF, along with radiosonde profiles of temperature to track the springtime development of the 2019 ozone hole over Arrival Heights (77.8°S, 166.7°E, AHTS), Antarctica, during, and after, the 2019 stratospheric sudden warming (SSW) event. Both measurements
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Using correlations between observed equivalent black carbon and aerosol size distribution to derive size resolved BC mass concentration: a method applied on long-term observations performed at Zeppelin station, Ny-Ålesund, Svalbard Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2021-06-03 Peter Tunved, Roxana S. Cremer, Paul Zieger, Johan Ström
Abstract The aim of this study was to explore particle size dependent properties by combining long-term observations of equivalent black carbon (eBC) and number size distributions to investigate their correlation as function of particle size. The work was conducted in two main parts. The first part consisted of a short laboratory experiment to compare observed total particle light absorption (σabs)
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Society needs experts with climate change competencies – what is the role of higher education in atmospheric and Earth system sciences? Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2021-05-19 Laura Riuttanen, Taina Ruuskanen, Mikko Äijälä, Anniina Lauri
Abstract The urgent societal need for climate action requires climate change expertise. But who is a climate change expert? What is the role of atmospheric and Earth system science education? In this study, we examine what competencies do atmospheric and Earth system scientists teach in selected programmes in seven European countries, and how they view the importance of various competencies for the
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Short-term variability of total column ozone from the Dobson spectrophotometer measurements at Belsk, Poland, in the period 23 March 1963–31 December 2019 Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2021-05-17 J. W. Krzyścin, B. Rajewska-Więch, J. Borkowski
Abstract Total column ozone (TCO) monitoring with the Dobson spectrophotometer no. 84 have been carried out at Belsk (51°50′, 20°47′), Poland, since 23 March 1963. TCO observations were made for various combinations of double wavelength pairs (AD, CD, CC′) and instrument settings (direct Sun, zenith blue, and zenith cloudy). In total, results of 115,736 manual observations were recorded in the period
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A pragmatic protocol for characterising errors in atmospheric inversions of methane emissions over Europe Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2021-05-10 Barbara Szénási, Antoine Berchet, Grégoire Broquet, Arjo Segers, Hugo Denier van der Gon, Maarten Krol, Joanna J.S. Hullegie, Anja Kiesow, Dirk Günther, Ana Maria Roxana Petrescu, Marielle Saunois, Philippe Bousquet, Isabelle Pison
Abstract This study aims at estimating errors to be accounted for in atmospheric inversions of methane (CH4) emissions at the European scale. Four types of errors are estimated in the concentration space over the model domain and at selected measurement sites. Furthermore, errors in emission inventories are estimated at country and source sector scales. A technically ready method is used, which is
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Absorbing aerosols over Asia – an inter-model and model-observation comparison study using CAM5.3-Oslo Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2021-05-10 L. Frey, F. Höpner, Alf Kirkevåg, F. A.-M. Bender
Abstract Aerosol absorption constitutes a significant component of the total radiative effect of aerosols, and hence its representation in general circulation models is crucial to radiative forcing estimates. We use here multiple observations to evaluate the performance of CAM5.3-Oslo with respect to its aerosol representation. CAM5.3-Oslo is the atmospheric component of the earth system model NorESM1
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The development of a miniaturised balloon-borne cloud water sampler and its first deployment in the high Arctic Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2021-05-08 Julika Zinke, Matthew E. Salter, Caroline Leck, Michael J. Lawler, Grace C. E. Porter, Michael P. Adams, Ian M. Brooks, Benjamin J. Murray, Paul Zieger
Abstract The chemical composition of cloud water can be used to infer the sources of particles upon which cloud droplets and ice crystals have formed. In order to obtain cloud water for analysis of chemical composition for elevated clouds in the pristine high Arctic, balloon-borne active cloud water sampling systems are the optimal approach. However, such systems have not been feasible to deploy previously
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Selected breakpoints of net forest carbon uptake at four eddy-covariance sites Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2021-05-04 Thomas Foken, Wolfgang Babel, J. William Munger, Tiia Grönholm, Timo Vesala, Alexander Knohl
Abstract Extensive studies are available that analyse time series of carbon dioxide and water flux measurements of FLUXNET sites over many years and link these results to climate change such as changes in atmospheric carbon dioxide concentration, air temperature and growing season length and other factors. Many of the sites show trends to a larger carbon uptake. Here we analyse time series of net ecosystem
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Temperature inversions in China derived from sounding data from 1976 to 2015 Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2021-03-16 Tingting Xu, Bing Liu, Minsi Zhang, Yu Song, Ling Kang, Tiantian Wang, Mingxu Liu, Xuhui Cai, Hongsheng Zhang, Tong Zhu
Abstract Temperature inversions inhibit the transfer of momentum, heat and moisture in the atmosphere and have led to severe air pollution in China. This study investigated the spatiotemporal variation in temperature inversions in China using sounding data for the past four decades. Surface-based inversion, elevated inversion, and both in one sounding dataset were analysed. Statistical analyses of
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Correction Notice Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2021-03-12
(2021). Correction Notice. Tellus B: Chemical and Physical Meteorology: Vol. 73, No. 1, pp. 1-1.
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Diurnal and inter-annual variability of surface ozone in Baicheng region, China Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2021-03-05 Tingting Qin, Ju Wang, Ran Li, Chunsheng Fang
Abstract With the rapid development of industry and economy, the problem of ozone (O3) pollution in China is of increasing concern in recent years. The problem of ozone pollution has become worse in Baicheng City which belongs to the province of Jilin. We analyze the spatial and temporal distribution of surface ozone and its correlation with precursors and meteorological factors during 2015 and 2019
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Simultaneous measurement of methylamine in size-segregated aerosols and the gas phase Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2021-01-25 Aki Hirai, Kiyoshi Matsumoto
Abstract In order to improve our understanding of the origin and production processes of methylamine in the atmosphere and its contribution to the particulate WSON, simultaneous measurements of methylamine in size-segregated aerosols and the gas phase were conducted at a forested site in Yamanashi Prefecture, Japan, over one year. The concentration of the atmospheric methylamine that is the sum of
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Analysis of the temporal variability of CO2, CH4 and CO concentrations at Lamto, West Africa Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-12-26 Toure Dro Tiemoko, Michel Ramonet, Fidele Yoroba, Kobenan Benjamin Kouassi, Kouakou Kouadio, Victor Kazan, Claire Kaiser, François Truong, Cyrille Vuillemin, Marc Delmotte, Benoit Wastine, Phillipe Ciais
Abstract The 10-year observations of the atmospheric molar fractions of CO2, CH4 and CO in West Africa were analyzed using a high precision measurement of the Lamto (LTO) station (6°31 N and 5°02 W) in Côte d’Ivoire. At daily scale, high concentrations appear at night with significant peaks around 7 a.m. local time and minimum concentrations in the afternoon for CO2 and CH4. The CO concentrations show
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Characterisation of methane sources in Lutjewad, The Netherlands, using quasi-continuous isotopic composition measurements Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-11-03 Malika Menoud, Carina van der Veen, Bert Scheeren, Huilin Chen, Barbara Szénási, Randulph P. Morales, Isabelle Pison, Philippe Bousquet, Dominik Brunner, Thomas Röckmann
Abstract Despite the importance of methane for climate change mitigation, uncertainties regarding the temporal and spatial variability of the emissions remain. Measurements of CH4 isotopic composition are used to partition the relative contributions of different emission sources. We report continuous isotopic measurements during 5 months at the Lutjewad tower (north of the Netherlands). Time-series
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Greenhouse gas observation network design for Africa Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-10-19 Alecia Nickless, Robert J. Scholes, Alex Vermeulen, Johannes Beck, Ana López-Ballesteros, Jonas Ardö, Ute Karstens, Matthew Rigby, Ville Kasurinen, Karolina Pantazatou, Veronika Jorch, Werner Kutsch
Abstract An optimal network design was carried out to prioritise the installation or refurbishment of greenhouse gas (GHG) monitoring stations around Africa. The network was optimised to reduce the uncertainty in emissions across three of the most important GHGs: CO2, CH4, and N2O. Optimal networks were derived using incremental optimisation of the percentage uncertainty reduction achieved by a Gaussian
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Net carbon ecosystem exchange during 24 years in the Sorø Beech Forest – relations to phenology and climate Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-09-22 Kim Pilegaard, Andreas Ibrom
The carbon sequestration of plants through photosynthesis is responsible for removal of a substantial amount of the man-made CO2 emissions to the atmosphere. In recent years this so-called land-sink has removed about 30% of the man-made emissions to the atmosphere, with forests being the most important sinks. The land-sink is, however, vulnerable to changes in the environment, such as the atmospheric
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Increasing trends (2001–2018) in photochemical activity and secondary aerosols in Santiago, Chile Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-09-18 Camilo Menares, Laura Gallardo, Maria Kanakidou, Rodrigo Seguel, Nicolás Huneeus
Despite the decline in partially (PM10) and fully (PM2.5) inhalable particles observed in recent decades, Santiago in Chile shows high levels of particle and ozone pollution. Attainment plans have emphasized measures aimed at curbing primary and, to some extent, secondary particles, but little attention has been paid to photochemical pollution. Nevertheless, ozone hourly mixing ratios in Eastern Santiago
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Exploring controlling factors for sea spray aerosol production: temperature, inorganic ions and organic surfactants Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-09-15 Lærke Sloth Nielsen, Merete Bilde
This work addresses the production of aerosol particles from bursting of air bubbles at the water-air interface. Experiments were performed in a laboratory system designed to minimize bubble interactions. Air bubbles of an equivalent spherical radius of ∼3 mm were generated in both real and artificial seawater at temperatures of 0 and 19 °C respectively. Particle concentrations were measured and used
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Editorial Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-08-27
(2020). Editorial. Tellus B: Chemical and Physical Meteorology: Vol. 72, No. 1, pp. 1-1.
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Measurements of atmospheric Δ14CO2 along the R/V Xuelong cruise track from Zhongshan Station (Antarctica) to Shanghai Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-08-20 Xiangdong Zheng, Ping Ding, Zhengbin Han, Chende Shen, Kexin Liu, Jie Tang, Linggen Bian
Abstract During January–March 2011, 29 atmospheric Δ14CO2 samples were measured along the R/V Xuelong cruise track from Zhongshan Station (69.37°S, 76.38°E; Antarctica) to Shanghai. The extent of fossil fuel contamination in the samples was evaluated by comparison with contemporary hemispheric-scale averages of Δ14CO2, together with transport analysis and consideration of the δ13CO2 levels in the samples
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Aerosol carbonaceous, elemental and ionic composition variability and origin at the Siberian High Arctic, Cape Baranova Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-08-07 M. Manousakas, O. Popovicheva, N. Evangeliou, E. Diapouli, N. Sitnikov, N. Shonija, K. Eleftheriadis
Abstract Aerosol particles are major short-lived climate forcers, because of their ability to interact with incoming solar radiation. Therefore, addressing mean levels and sources of Arctic aerosols is of high importance in the battle against climate change, due to the Arctic amplification. In the Eastern Arctic, from Finland to Alaska, only one monitoring station exists (HMO Tiksi) and the levels
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Trajectory-based analysis on the source areas and transportation pathways of atmospheric particulate matter over Eastern Finland Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-08-04 Olli Väisänen, Liqing Hao, Annele Virtanen, Sami Romakkaniemi
Abstract In this study, we utilize aerosol mass spectrometer (AMS) and multi-angle absorption photometer (MAAP) measurements to assess the most predominant source regions of various atmospheric aerosol constituents transported to Eastern Finland. The non-refractory composition data from the AMS were measured during three intensive measurements campaigns in autumn 2012, 2014 and 2016, whereas the continuous
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Changes in aerosol size distributions over the Indian Ocean during different meteorological conditions Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-07-20 Jutta Kesti, Eija Asmi, Ewan J. O’Connor, John Backman, Krishnakant Budhavant, August Andersson, Sanjeev Dasari, Puppala S. Praveen, H. Zahid, Örjan Gustafsson
Abstract Aerosol emissions in South Asia are large. The emitted aerosols can travel significant distances and, during the Asian southwest monsoon especially, are prone to modification through cloud processing and wet scavenging while being transported. The scale of emissions and transport means that the global climate impact of these aerosols are sensitive to modification en route, but the process-level
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Summary of a workshop on extreme weather events in a warming world organized by the Royal Swedish Academy of Sciences Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-07-16 Deliang Chen, Henning Rodhe, Kerry Emanuel, Sonia I. Seneviratne, Panmao Zhai, Bert Allard, Peter Berg, Svante Björck, Ian A. Brown, Lars Bärring, Léon Chafik, Kaiqiang Deng, Marie-Jose Gaillard-Lemdahl, Magnus Hieronymus, Erik Kjellström, Hans W. Linderholm, Wilhelm May, Jens-Ove Näslund, Tinghai Ou, Anna Rutgersson, Erik Sahlee, Frederik Schenk, Jesper Sjolte, Moa K. Sporre, Anders Stigebrandt, Gesa
Abstract Climate change is not only about changes in means of climatic variables such as temperature, precipitation and wind, but also their extreme values which are of critical importance to human society and ecosystems. To inspire the Swedish climate research community and to promote assessments of international research on past and future changes in extreme weather events against the global climate
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Environmental control of land-atmosphere CO2 fluxes from temperate ecosystems: a statistical approach based on homogenized time series from five land-use types Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-06-29 Virginie Moreaux, Bernard Longdoz, Daniel Berveiller, Nicolas Delpierre, Eric Dufrêne, Jean-Marc Bonnefond, Christophe Chipeaux, Richard Joffre, Jean-Marc Limousin, Jean-Marc Ourcival, Katja Klumpp, Olivier Darsonville, Aurore Brut, Tiphaine Tallec, Eric Ceschia, Gérémy Panthou, Denis Loustau
Abstract We assembled homogenized long-term time series, up to 19 years, of measurements of net ecosystem exchange of CO2 (NEE) and its partitioning between gross primary production (GPP) and respiration (Reco) for five different ecosystems representing the main plant functional types (PFTs) in France. Part of these data was analyzed to determine the influence of the main environmental variables on
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Dissolved organic carbon in Alaskan Arctic snow: concentrations, light-absorption properties, and bioavailability Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-06-26 Yulan Zhang, Shichang Kang, Tanguang Gao, Michael Sprenger, Tingfeng Dou, Wei Han, Qi Zhang, Shiwei Sun, Wentao Du, Pengfei Chen, Junming Guo, Xiaoqing Cui, Mika Sillanpää
Abstract Dissolved organic carbon (DOC) plays an important role in the carbon cycle, radiative forcing, and biogeochemistry in cryospheric regions. In this study, concentrations, light-absorption properties and bioavailability of DOC from snow cover in Alaska were characterized. Results indicated that average concentrations of DOC in snow of Alaska (0.17 − 0.30 mg L−1) were lower than that found in
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Physical and chemical properties of aerosol particles and cloud residuals on Mt. Åreskutan in Central Sweden during summer 2014 Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-06-12 Emelie Linnéa Graham, Paul Zieger, Claudia Mohr, Ulla Wideqvist, Tabea Hennig, Annica M. L. Ekman, Radovan Krejci, Johan Ström, Ilona Riipinen
Abstract The size distribution, volatility and hygroscopicity of ambient aerosols and cloud residuals were measured with a differential mobility particle sizer (DMPS) and a volatility–hygroscopicity tandem differential mobility analyser (VHTDMA) coupled to a counterflow virtual impactor (CVI) inlet during the Cloud and Aerosol Experiment at Åre (CAEsAR) campaign at Mt. Åreskutan during summer 2014
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Deuterium excess and 17O-excess variability in meteoric water across the Pacific Northwest, USA Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-06-12 John Bershaw, Dougal D. Hansen, Andrew J. Schauer
Abstract High-precision triple oxygen isotope analysis of water has given rise to a novel second-order parameter, 17O-excess (often denoted as Δ17O), which describes the deviation from a reference relationship between δ18O and δ17O. This tracer, like deuterium excess (d-excess), is affected by kinetic fractionation (diffusion) during phase changes within the hydrologic cycle. However, unlike d-excess
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A 210-year tree-ring δ18O record in North China and its relationship with large-scale circulations Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-06-05 Lu Wang, Yu Liu, Qiang Li, Huiming Song, Qiufang Cai, Changfeng Sun, Congxi Fang, Ruoshi Liu
Abstract Tree-ring stable oxygen isotope (δ18OTR) demonstrates the enormous potential for revealing hydrological climate changes and large-scale atmospheric circulations. Here, we established the 210-year δ18OTR chronology of Pinus tabulaeformis Carr. in Baotou, southwest Inner Mongolia, North China. The regional precipitation δ18O (δ18OP) and June-July-August relative humidity (RHJJA) were the two
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Airborne survey of trace gases and aerosols over the Southern Baltic Sea: from clean marine boundary layer to shipping corridor effect Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2019-12-10 Marco Zanatta, Heiko Bozem, Franziska Köllner, Johannes Schneider, Daniel Kunkel, Peter Hoor, Julia de Faria, Andreas Petzold, Ulrich Bundke, Katherine Hayden, Ralf M. Staebler, Hannes Schulz, Andreas B. Herber
Abstract The influence of shipping on air quality over the Southern Baltic Sea was investigated by characterizing the horizontal and vertical distribution of aerosols and trace gases using airborne measurements in the summer of 2015. Generally, continental and anthropogenic emissions affected the vertical distribution of atmospheric pollutants, leading to pronounced stratification in and above the
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Ozone exchange within and above an irrigated Californian orchard Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-02-11 J.S. Brown, M.M. Shapkalijevski, M.C. Krol, T. Karl, H.G. Ouwersloot, A.F. Moene, E.G. Patton, J. Vilà-Guerau de Arellano
Abstract In this study, the canopy effects on the vertical ozone exchange within and above Californian orchard are investigated. We examined the comprehensive dataset obtained from the Canopy Horizontal Array Turbulence Study (CHATS). CHATS typifies a rural central Californian site, with O3 mixing ratios of less than 60 ppb and moderate NOx mixing ratios. The CHATS campaign covered a complete irrigation
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The main controls of the precipitation stable isotopes at Kathmandu, Nepal Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-02-10 Niranjan Adhikari, Jing Gao, Tandong Yao, Yulong Yang, Di Dai
Abstract Precipitation stable isotopes (2H and 18O) are adequately understood on their climate controls in the Tibetan Plateau, especially the north of Himalayas via about 30 years’ studies. However, knowledge of controls on precipitation stable isotopes in Nepal (the south of Himalayas), is still far from sufficient. This study described the intra-seasonal and annual variations of precipitation stable
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The effects of moisture sources and local parameters on the 18O and 2H contents of precipitation in the west of Iran and the east of Iraq Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-02-03 Hossein Mohammadzadeh, Javad Eskandari Mayvan, Mojtaba Heydarizad
Abstract Iran and Iraq face a water shortage crisis especially in the recent decade. Hence, the regions with high potential water resources are highly important to these countries. Precipitation sampling for 18O and 2H analyses was conducted in 10 stations in the west of Iran and 2 stations in the east of Iraq during this study. Studying precipitation and its moisture sources using the backward trajectories
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Deuterium–hydrogen ratios, electrical conductivity and nitrate for high-resolution dating of polar ice cores Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-04-09 Gisela Dreschhoff, Högne Jungner, Claude M. Laird
Abstract In order to support the very high time resolution required to observe short-term variations in nitrates and all other ions represented by electrical conductivity in polar ice, a Fourier transform infrared spectrometer was developed for measurement of deuterium concentration in ice samples, as an additional support for the timescale of ultra-high resolution. The portable instrument provided
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Dissolved organic carbon in Alaskan Arctic snow: concentrations, light-absorption properties, and bioavailability Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2020-01-01 Yulan Zhang,Shichang Kang,Tanguang Gao,Michael Sprenger,Tingfeng Dou,Wei Han,Qi Zhang,Shiwei Sun,Wentao Du,Pengfei Chen,Junming Guo,Xiaoqing Cui,Mika Sillanpää
Abstract Dissolved organic carbon (DOC) plays an important role in the carbon cycle, radiative forcing, and biogeochemistry in cryospheric regions. In this study, concentrations, light-absorption properties and bioavailability of DOC from snow cover in Alaska were characterized. Results indicated that average concentrations of DOC in snow of Alaska (0.17 − 0.30 mg L−1) were lower than that found in
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THE FIRST TWENTY YEARS (1994-2014) OF OZONE SOUNDINGS FROM RAPA NUI (27°S, 109°W, 51 M A.S.L.). Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2016-01-01 L Gallardo,A Henríquez,A M Thompson,R Rondanelli,J Carrasco,A Orfanoz-Cheuquelaf,P Velásquez
Ozone (O3) soundings have been performed on Easter Island or Rapa Nui (27°S, 23 109°W, 51 m a.s.l.) since 1994 as part of the Global Atmospheric Watch (GAW) Programme of the World Meteorological Organization (WMO). In this work, we analyze 260 soundings compiled over the period 1994-2014, and make the data available for the international community. We characterize O3 profiles over this remote area
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Analysis of actinometric measurements under all-sky and cloud-free conditions in Cáceres (Spain) for the period 1913–1920 Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2019-01-01 Nieves Bravo-Paredes,María Cruz Gallego,Manuel AntÓn,Marcelino NÚÑEz,JosÉ Manuel Vaquero
Abstract Early daily actinometric and cloud cover data from Cáceres (SW of Spain) were recovered for the period 1913–1920. The task of retrieving and digitising early actinometric data series turn out highly required due to the lack of solar radiation data throughout the first half of twentieth century. Firstly, the Arago actinometer and the procedure employed to record the actinometric data were described
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North Atlantic weather regimes in δ18O of winter precipitation: isotopic fingerprint of the response in the atmospheric circulation after volcanic eruptions Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2019-01-01 Hera GuðlaugsdÓttir,Jesper Sjolte,ÁrnÝ Erla Sveinbjörnsdóttir,Martin Werner,Hans Christian Steen-Larsen
Abstract Equatorial volcanic eruptions are known to impact the atmospheric circulation on seasonal time scales through a strengthening of the stratospheric zonal winds followed by dynamic ocean-atmosphere coupling. This emerges as the positive phase of the North Atlantic Oscillation in the first 5 years after an eruption. In the North Atlantic, other modes of atmospheric circulation contribute to the
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New insights in sources of the sub-micrometre aerosol at Mt. Zeppelin observatory (Spitsbergen) in the year 2015 Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2019-01-01 Matthias Karl,Caroline Leck,Farshid Mashayekhy Rad,Are Bäcklund,Susana Lopez-Aparicio,Jost Heintzenberg
Abstract In order to evaluate the potential impact of the Arctic anthropogenic emission sources it is essential to understand better the natural aerosol sources of the inner Arctic and the atmospheric processing of the aerosols during their transport in the Arctic atmosphere. A 1-year time series of chemically specific measurements of the sub-micrometre aerosol during 2015 has been taken at the Mt
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Estimating methane emissions using vegetation mapping in the taiga–tundra boundary of a north-eastern Siberian lowland Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2019-01-01 T. Morozumi,R. Shingubara,R. Suzuki,H. Kobayashi,S. Tei,S. Takano,R. Fan,M. Liang,T. C. Maximov,A. Sugimoto
Abstract Taiga–tundra boundary ecosystems are affected by climate change. Methane (CH4) emissions in taiga–tundra boundary ecosystems have sparsely been evaluated from local to regional scales. We linked in situ CH4 fluxes (2009–2016) with vegetation cover, and scaled these findings to estimate CH4 emissions at a local scale (10 × 10 km) using high-resolution satellite images in an ecosystem on permafrost
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The role of ASM on the formation and properties of cirrus clouds over the Tibetan Plateau Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2019-01-01 Qianshan He,Xiangdong Zheng,Jian Li,Wei Gao,Yanyu Wang,Tiantao Cheng,Jiawei Pu,Jie Liu,Chengcai Li
Abstract Cirrus clouds play a significant role in the Earth’s energy balance and in the hydrological cycle of the atmosphere. Here, a high-performance Micro Pulse Lidar was continuously used to investigate cirrus cloud formation and characteristics at Ali (32.50°N, 80.08°E; 4279 m), in the western Tibetan Plateau from 25 July to 23 September 2016, a time frame that spanned the prevalence and degeneration
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Methane budget estimates in Finland from the CarbonTracker Europe-CH4 data assimilation system Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2019-01-01 Aki Tsuruta,Tuula Aalto,Leif Backman,Maarten C. Krol,Wouter Peters,Sebastian Lienert,Fortunat Joos,Paul A. Miller,Wenxin Zhang,Tuomas Laurila,Juha Hatakka,Ari Leskinen,Kari E. J. Lehtinen,Olli Peltola,Timo Vesala,Janne Levula,Ed Dlugokencky,Martin Heimann,Elena Kozlova,Mika Aurela,Annalea Lohila,Mari Kauhaniemi,Angel J. Gomez-Pelaez
Abstract We estimated the CH4 budget in Finland for 2004–2014 using the CTE-CH4 data assimilation system with an extended atmospheric CH4 observation network of seven sites from Finland to surrounding regions (Hyytiälä, Kjølnes, Kumpula, Pallas, Puijo, Sodankylä, and Utö). The estimated average annual total emission for Finland is 0.6 ± 0.5 Tg CH4 yr−1. Sensitivity experiments show that the posterior
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Monte Carlo simulations of homogeneous nucleation and particle growth in the presence of background particles Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2019-01-01 Gregor Kotalczyk,Ivan SkenderoviĆ,Frank Einar Kruis
Abstract The application of the Monte Carlo (MC) simulation technique for the modelling of nucleation processes with an existing background particle concentration is presented in this paper. Next to the nucleation of novel particles, the coagulation of an existing particle population as well as the condensational growth and evaporation of unstable particles (whose diameter is smaller than the critical
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Aircraft measurements of aerosol distribution, warm cloud microphysical properties, and their relationship over the Eastern Loess Plateau in China Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2019-01-01 Junxia Li,Peiren Li,Gang Ren,Liang Yuan,Yiyu Li,Junmei Yang
Abstract In situ aircraft measurements of aerosols and clouds were performed over the eastern Loess Plateau in Shanxi Province, China. The microphysical properties of both aerosols and warm clouds, including aerosol number concentration (Na), particle effective diameter (ED), number concentration of cloud droplets (Nc), cloud droplet diameter (Dc), and liquid water content (LWC) of clouds, determined
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Aqueous-phase reactions occurred in the PM2.5 cumulative explosive growth during the heavy pollution episode (HPE) in 2016 Beijing wintertime Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2019-01-01 Lingyan Wu,Junying Sun,Xiaoye Zhang,Yangmei Zhang,Yaqiang Wang,Junting Zhong,Yun Yang
Abstract A heavy pollution episode (HPE) that lasted for seven days occurred over the North China Plain in December 2016. An in situ Ambient Ion Monitor was applied to analyze the chemical composition of PM2.5 (fine particulate matter with diameters less than 2.5 µm) and gaseous HONO concentration during that event. A representative explosive growth in the pollution cumulative stage was selected to
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Assessing moisture sources of precipitation in the Western Pamir Mountains (Tajikistan, Central Asia) using deuterium excess Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2019-01-01 Tobias R. Juhlke,Christiane Meier,Robert van Geldern,Kim A. Vanselow,Jakob Wernicke,Jamila Baidulloeva,Johannes A.C. Barth,Stephan M. Weise
Abstract Air moisture of oceanic origin can be subject to long-range transport and could contribute to precipitation at distant places. With ongoing climate change the relationship between water vapour sources and sinks is under constant evolution and plays an important role for water budget assessments. This study analysed monthly integrated and event-based precipitation samples from two field sites
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Trends in MODIS and AERONET derived aerosol optical thickness over Northern Europe Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2019-01-01 Paul Glantz,Eyal Freud,Christer Johansson,Kevin J. Noone,Matthias Tesche
Abstract Long-term Aqua and Terra MODIS (MODerate resolution Imaging Spectroradiometer) Collections 5.1 and 6.1 (c051 and c061, respectively) aerosol data have been combined with AERONET (AERosol RObotic NETwork) ground-based sun photometer observations to examine trends in aerosol optical thickness (AOT, at 550 nm) over Northern Europe for the months April to September. For the 1927 and 1559 daily
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Seasonal trends of the stable nitrogen isotope ratio in particulate nitrogen compounds and their gaseous precursors in Akita, Japan Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2019-01-01 Hiroto Kawashima
Abstract Particulate matter (PM) can have adverse effects on human health. Moreover, because the mechanisms of PM formation and behavior in the atmosphere are notably complicated, to reduce PM concentrations effectively and meet environmental standards, source–receptor relationships must be clearly understood. Stable isotope ratios can be used to detect chemical processes and distinguish sources. In
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Reflections on the threshold for PM2.5 explosive growth in the cumulative stage of winter heavy aerosol pollution episodes (HPEs) in Beijing Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2019-01-01 Junting Zhong,Xiaoye Zhang,Yaqiang Wang
Abstract Particulate matter smaller than 2.5 μm in diameters (PM2.5) often experiences explosive growth (mass concentration at least doubled in several to 10 h) in winter aerosol pollution episodes (HPEs) in Beijing. Whether a threshold value exists for such PM2.5 explosive growth is uncertain. Here, we used PM2.5 mass concentration, surface and vertical meteorological factors including winds, temperature
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Composition, isotopic fingerprint and source attribution of nitrate deposition from rain and fog at a Sub-Arctic Mountain site in Central Sweden (Mt Åreskutan) Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2019-01-01 Carmen P. Vega,E. Monica Mårtensson,Ulla Wideqvist,Jan Kaiser,Paul Zieger,Johan StrÖm
Abstract While dry and rain deposition of nitrate (NO3−) and ammonium (NH4+) are regularly assessed, fog deposition is often overlooked. This work assesses summer fog events contribution to nitrogen deposition and availability for forest ecosystems. Rain and fog samples were collected at Mt Åreskutan, Sweden, during CAEsAR (Cloud and Aerosol Characterization Experiment), in 2014. NH4+ + NO3− represent
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The particle dry deposition component of total deposition from air quality models: right, wrong or uncertain? Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2019-01-01 Rick D. Saylor,Barry D. Baker,Pius Lee,Daniel Tong,Li Pan,Bruce B. Hicks
Abstract Dry deposition is an important loss process for atmospheric particles and can be a significant part of total deposition estimates calculated for critical loads analyses. However, algorithms used in large-scale air quality and atmospheric chemistry models to predict particle deposition velocity as a function of particle size are highly uncertain. Many of these algorithms, although derived from
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Broadband dependence of atmospheric transmissions in the UV and total solar radiation Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2018-12-12 Hana Lee,Woogyung Kim,Yun G. Lee,Ja-Ho Koo,Yeonjin Jung,Sang S. Park,Hi-Ku Cho,Jhoon Kim
Abstract Atmospheric broadband transmissions of clouds, aerosols, and ozone in the erythemally weighted ultraviolet (EUV, 290–320 nm), total (spectrally integrated) ultraviolet (TUV, 290–363 nm), and total global solar (GS, 305–2800 nm) spectral regions were analysed with ground-based measurements in Seoul, Korea (37.57°N, 128.98°E) from March 2004 to February 2013. The annual average total transmission
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Current situation of atmospheric nanoparticles in Fukue Island, Japan Tellus B Chem. Phys. Meteorol. (IF 2.3) Pub Date : 2018-01-01 Indra Chandra,Takafumi Seto,Yoshio Otani,Yayoi Inomata,Naoya Hama,Ayako Yoshino,Akinori Takami,Nobuyuki Takegawa
Abstract Emissions of polluted air in East Asia have gradually decreased over the last decade. Those air pollutants have been transported over long distances and influenced new particle formation (NPF) in the downstream region. We obtained 5-year data of the mobility size distribution and SO2 and particulate (PM2.5) emissions on Fukue Island (32.75°N, 128.68°E), Japan. Frequent NPF events in the 2013