Searched for: mods_originInfo_publisher_s%3A%22Copernicus%255C%2BGmbH%22
(21 - 40 of 84)
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Chen, Y. (author), Cheng, Y. (author), Ma, N. (author), Wei, C. (author), Ran, L. (author), Wolke, R. (author), Gross, J. (author), Wang, Q. (author), Pozzer, A. (author), van der Gon, H.A.C.D. (author), Spindler, G. (author), Lelieveld, J. (author), Tegen, I. (author), Su, H. (author), Wiedensohler, A. (author)Natural sea-salt aerosols, when interacting with anthropogenic emissions, can enhance the formation of particulate nitrate. This enhancement has been suggested to increase the direct radiative forcing of nitrate, called the "massenhancement effect". Through a size-resolved dynamic mass transfer modeling approach, we show that interactions with...article 2020
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Tack, F. (author), Merlaud, A. (author), Meier, A.C. (author), Vlemmix, T. (author), Ruhtz, T. (author), Iordache, M-D. (author), Ge, X. (author), van der Wal, L. (author), Schuettemeyer, D. (author), Ardelean, M. (author), Calcan, A. (author), Constantin, D. (author), Schönhardt, A. (author), Meuleman, K. (author), Richter, A. (author), van Roozendael, M. (author)We present an intercomparison study of four airborne imaging DOAS instruments, dedicated to the retrieval and high-resolution mapping of tropospheric nitrogen dioxide (NO2) vertical column densities (VCDs). The AROMAPEX campaign took place in Berlin, Germany, in April 2016 with the primary objective to test and intercompare the performance of...article 2019
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Escudero, M. (author), Segers, A. (author), Kranenburg, R. (author), Querol, X. (author), Alastuey, A. (author), Borge, R. (author), de la Paz, D. (author), Gangoiti, G. (author), Schaap, M. (author)Tropospheric O3 remains a major air-quality issue in the Mediterranean region. The combination of large anthropogenic emissions of precursors, transboundary contributions, a warm and dry aestival climate, and topographical features results in severe cases of photochemical pollution. Chemical transport models (CTMs) are essential tools for...article 2019
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Wagner, T. (author), Beirle, S. (author), Benavent, N. (author), Bösch, T. (author), lok Chan, K. (author), Donner, S. (author), Dörner, S. (author), Fayt, C. (author), Frieß, U. (author), García-Nieto, D. (author), Gielen, C. (author), González-Bartolome, D. (author), Gomez, L. (author), Hendrick, F. (author), Henzing, B. (author), li Jin, J. (author), Lampel, J. (author), Ma, J. (author), Mies, K. (author), Navarro, M. (author), Peters, E. (author), Pinardi, G. (author), Puentedura, O. (author), Pukite, J. (author), Remmers, J. (author), Richter, A. (author), Saiz-Lopez, A. (author), Shaiganfar, R. (author), Sihler, H. (author), van Roozendael, M. (author), Wang, Y. (author), Yela, M. (author)In this study the consistency between MAX-DOAS measurements and radiative transfer simulations of the atmospheric O 4 absorption is investigated on 2 mainly cloud-free days during the MAD-CAT campaign in Mainz, Germany, in summer 2013. In recent years several studies indicated that measurements and radiative transfer simulations of the...article 2019
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Ciarelli, G. (author), Theobald, M.R. (author), Vivanco, M.G. (author), Beekmann, M. (author), Aas, W. (author), Andersson, C. (author), Bergström, R. (author), Manders-Groot, A. (author), Couvidat, F. (author), Mircea, M. (author), Tsyro, S. (author), Fagerli, H. (author), Mar, K. (author), Raffort, V. (author), Roustan, Y. (author), Pay, M.T. (author), Schaap, M. (author), Kranenburg, R. (author), Adani, M. (author), Briganti, G. (author), Cappelletti, A. (author), D'Isidoro, M. (author), Cuvelier, C. (author), Cholakian, A. (author), Bessagnet, B. (author), Wind, P. (author), Colette, A. (author)In the framework of the EURODELTA-Trends (EDT) modeling experiment, several chemical transport models (CTMs) were applied for the 1990-2010 period to investigate air quality changes in Europe as well as the capability of the models to reproduce observed long-term air quality trends. Five CTMs have provided modeled air quality data for 21...article 2019
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Fischer, H. (author), Axinte, R. (author), Bozem, H. (author), Crowley, J.N. (author), Ernest, C. (author), Gilge, S. (author), Hafermann, S. (author), Harder, H. (author), Hens, K. (author), Janssen, R.H.H. (author), Königstedt, R. (author), Kubistin, D. (author), Mallik, C. (author), Martinez, M. (author), Novelli, A. (author), Parchatka, U. (author), Plass-Dülmer, C. (author), Pozzer, A. (author), Regelin, E. (author), Reiffs, A. (author), Schmidt, T. (author), Schuladen, J. (author), Lelieveld, J. (author)Hydrogen peroxide (H2O2) plays a significant role in the oxidizing capacity of the atmosphere. It is an efficient oxidant in the liquid phase and serves as a temporary reservoir for the hydroxyl radical (OH), the most important oxidizing agent in the gas phase. Due to its high solubility, removal of H2O2 due to wet and dry deposition is...article 2019
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Jin, J. (author), xiang Lin, H. (author), Segers, A. (author), Xie, Y. (author), Heemink, A. (author)Data assimilation algorithms rely on a basic assumption of an unbiased observation error. However, the presence of inconsistent measurements with nontrivial biases or inseparable baselines is unavoidable in practice. Assimilation analysis might diverge from reality since the data assimilation itself cannot distinguish whether the differences...article 2019
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Petersen, A.K. (author), Brasseur, G.P. (author), Bouarar, I. (author), Flemming, J. (author), Gauss, M. (author), Jiang, F. (author), Kouznetsov, R. (author), Kranenburg, R. (author), Mijling, B. (author), Peuch, V.H. (author), Pommier, M. (author), Segers, A. (author), Sofiev, M. (author), Timmermans, R. (author), van der A, R. (author), Walters, S. (author), Xie, Y. (author), Xu, J. (author), Zhou, G. (author)An operational multimodel forecasting system for air quality has been developed to provide air quality services for urban areas of China. The initial forecasting system included seven state-of-the-art computational models developed and executed in Europe and China (CHIMERE, IFS, EMEP MSC-W, WRF-Chem-MPIM, WRF-Chem-SMS, LOTOS-EUROS, and SILAMtest...article 2019
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Jiang, J. (author), Aksoyoglu, S. (author), El-Haddad, I. (author), Ciarelli, G. (author), Denier van der Gon, H. (author), Canonaco, F. (author), Gilardoni, S. (author), Paglione, M. (author), Minguillón, M.C. (author), Favez, O. (author), Zhang, Y. (author), Marchand, N. (author), Hao, L. (author), Virtanen, A. (author), Florou, K. (author), O'Dowd, C. (author), Ovadnevaite, J. (author), Baltensperger, U. (author), Prévôt, A.S.H. (author)Source apportionment of organic aerosols (OAs) is of great importance to better understand the health impact and climate effects of particulate matter air pollution. Air quality models are used as potential tools to identify OA components and sources at high spatial and temporal resolution; however, they generally underestimate OA concentrations...article 2019
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Dammers, E. (author), McLinden, C.A. (author), Griffin, D. (author), Shephard, M.W. (author), van der Graaf, S. (author), Lutsch, E. (author), Schaap, M. (author), Gainairu-Matz, Y. (author), Fioletov, V. (author), van Damme, M. (author), Whitburn, S. (author), Clarisse, L. (author), Cady-Pereira, K. (author), Clerbaux, C. (author), francois Coheur, P. (author), Erisman, J.W. (author)Ammonia (NH3) is an essential reactive nitrogen species in the biosphere and through its use in agriculture in the form of fertilizer (important for sustaining humankind). The current emission levels, however, are up to 4 times higher than in the previous century and continue to grow with uncertain consequences to human health and the...article 2019
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Timmermans, R. (author), Segers, A. (author), Curier, L. (author), Abida, R. (author), Attié, J.L. (author), el Amraoui, L. (author), Eskes, H. (author), de Haan, J. (author), Kujanpää, J. (author), Lahoz, W. (author), oude Nijhuis, A. (author), Quesada-Ruiz, S. (author), Ricaud, P. (author), Veefkind, P. (author), Schaap, M. (author)We present an Observing System Simulation Experiment (OSSE) dedicated to the evaluation of the added value of the Sentinel-4 and Sentinel-5P missions for tropospheric nitrogen dioxide (NO2). Sentinel-4 is a geostationary (GEO) mission covering the European continent, providing observations with high temporal resolution (hourly). Sentinel-5P is a...article 2019
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Russo, E. (author), Kirchner, I. (author), Pfahl, S. (author), Schaap, M. (author), Cubasch, U. (author)Due to its extension, geography and the presence of several underdeveloped or developing economies, the Central Asia domain of the Coordinated Regional Climate Downscaling Experiment (CORDEX) is one of the most vulnerable regions on Earth to the effects of climate changes. Reliable information on potential future changes with high spatial...article 2019
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Groot Zwaaftink, C.D. (author), Henne, S. (author), Thompson, R.L. (author), Dlugokencky, E.J. (author), Machida, T. (author), Paris, J.D. (author), Sasakawa, M. (author), Segers, A. (author), Sweeney, C. (author), Stohl, A. (author)A Lagrangian particle dispersion model, the FLEXible PARTicle dispersion chemical transport model (FLEXPART CTM), is used to simulate global three-dimensional fields of trace gas abundance. These fields are constrained with surface observation data through nudging, a data assimilation method, which relaxes model fields to observed values. Such...article 2018
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Baró, R. (author), Jiménez-Guerrero, P. (author), Stengel, M. (author), Brunner, D. (author), Curci, G. (author), Forkel, R. (author), Neal, L. (author), Palacios-Peña, L. (author), Savage, N. (author), Schaap, M. (author), Tuccella, P. (author), van der Gon, H.D. (author), Galmarini, S. (author)Online coupled meteorology-chemistry models permit the description of the aerosol-radiation (ARI) and aerosol-cloud interactions (ACIs). The aim of this work is to assess the representation of several cloud properties in regional-scale coupled models when simulating the climate-chemistry-cloud-radiation system. The evaluated simulations are...article 2018
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Pandolfi, M. (author), Alados-Arboledas, L. (author), Alastuey, A. (author), Andrade, M. (author), Angelov, C. (author), Artiñano, B. (author), Backman, J. (author), Baltensperger, U. (author), Bonasoni, P. (author), Bukowiecki, N. (author), Collaud Coen, M. (author), Conil, S. (author), Coz, E. (author), Crenn, V. (author), Dudoitis, V. (author), Ealo, M. (author), Eleftheriadis, K. (author), Favez, O. (author), Fetfatzis, P. (author), Fiebig, M. (author), Flentje, H. (author), Ginot, P. (author), Gysel, M. (author), Henzing, B. (author), Hoffer, A. (author), Holubova Smejkalova, A. (author), Kalapov, I. (author), Kalivitis, N. (author), Kouvarakis, G. (author), Kristensson, A. (author), Kulmala, M. (author), Lihavainen, H. (author), Lunder, C. (author), Luoma, K. (author), Lyamani, H. (author), Marinoni, A. (author), Mihalopoulos, N. (author), Moerman, M. (author), Nicolas, J. (author), O'Dowd, C. (author), Petäjä, T. (author), Petit, J.E. (author), Marc Pichon, J. (author), Prokopciuk, N. (author), Putaud, J.P. (author), Rodríguez, S. (author), Sciare, J. (author), Sellegri, K. (author), Swietlicki, E. (author), Titos, G. (author), Tuch, T. (author), Tunved, P. (author), Ulevicius, V. (author), Vaishya, A. (author), Vana, M. (author), Virkkula, A. (author), Vratolis, S. (author), Weingartner, E. (author), Wiedensohler, A. (author), Laj, P. (author)This paper presents the light-scattering properties of atmospheric aerosol particles measured over the past decade at 28 ACTRIS observatories, which are located mainly in Europe. The data include particle light scattering (σsp) and hemispheric backscattering (σbsp) coefficients, scattering Ångström exponent (SAE), backscatter fraction (BF) and...article 2018
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Hartman, J.D. (author), Sangiorgi, F. (author), Salabarnada, A. (author), Peterse, F. (author), Houben, A.J.P. (author), Schouten, S. (author), Brinkhuis, H. (author), Escutia, C. (author), Bijl, P.K. (author)The volume of the Antarctic continental ice sheet(s) varied substantially during the Oligocene and Miocene ( ∼ 34-5Ma) from smaller to substantially larger than today, both on million-year and on orbital timescales. However, reproduction through physical modeling of a dynamic response of the ice sheets to climate forcing remains problematic,...article 2018
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Peters, E. (author), Blöcher, G. (author), Salimzadeh, S. (author), Egberts, P.J.P. (author), Cacace, M. (author)Well inflow modelling in different numerical simulation approaches are compared for a multi-lateral well. Specifically radial wells will be investigated, which can be created using Radial Jet Drilling (RJD). In this technique, powerful hydraulic jets are used to create small diameter laterals (25-50 mm) of limited length (up to 100 m) from a...article 2018
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van der Graaf, S.C. (author), Dammers, E. (author), Schaap, M. (author), Willem Erisman, J. (author)Atmospheric levels of reactive nitrogen have increased substantially during the last century resulting in increased nitrogen deposition to ecosystems, causing harmful effects such as soil acidification, reduction in plant biodiversity and eutrophication in lakes and the ocean. Recent developments in the use of atmospheric remote sensing enabled...article 2018
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Otero, N. (author), Sillmann, J. (author), Mar, K.A. (author), Rust, H.W. (author), Solberg, S. (author), Andersson, C. (author), Engardt, M. (author), Bergström, R. (author), Bessagnet, B. (author), Colette, A. (author), Couvidat, F. (author), Cuvelier, C. (author), Tsyro, S. (author), Fagerli, H. (author), Schaap, M. (author), Manders, A. (author), Mircea, M. (author), Briganti, G. (author), Cappelletti, A. (author), Adani, M. (author), D'Isidoro, M. (author), Pay, M.T. (author), Theobald, M. (author), Vivanco, M.G. (author), Wind, P. (author), Ojha, N. (author), Raffort, V. (author), Butler, T. (author)The implementation of European emission abatement strategies has led to a significant reduction in the emissions of ozone precursors during the last decade. Ground-level ozone is also influenced by meteorological factors such as temperature, which exhibit interannual variability and are expected to change in the future. The impacts of climate...article 2018
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Xausa, F. (author), Paasonen, P. (author), Makkonen, R. (author), Arshinov, M. (author), Ding, A. (author), Denier van der Gon, H. (author), Kerminen, V.M. (author), Kulmala, M. (author)Climate models are important tools that are used for generating climate change projections, in which aerosol-climate interactions are one of the main sources of uncertainties. In order to quantify aerosol-radiation and aerosol-cloud interactions, detailed input of anthropogenic aerosol number emissions is necessary. However, the anthropogenic...article 2018
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