Vitenskapelige publikasjoner: Nye registreringer

Viser treff 1-20 av 1089

    • Evaluation of isoprene emissions from the coupled model SURFEX–MEGANv2.1 

      Oumami, Safae; Arteta, Joaquim; Guidard, Vincent; Tulet, Pierre; Hamer, Paul David (Peer reviewed; Journal article, 2024)
      Isoprene, a key biogenic volatile organic compound, plays a pivotal role in atmospheric chemistry. Due to its high reactivity, this compound contributes significantly to the production of tropospheric ozone in polluted ...

    • Contribution of fluorescent primary biological aerosol particles to low-level Arctic cloud residuals 

      Pereira Freitas, Gabriel; Kopec, Ben; Adachi, Kouji; Krejci, Radovan; Heslin-Rees, Dominic; Yttri, Karl Espen; Hubbard, Alun Lloyd; Welker, Jeffrey M.; Zieger, Paul (Peer reviewed; Journal article, 2024)
      Mixed-phase clouds (MPCs) are key players in the Arctic climate system due to their role in modulating solar and terrestrial radiation. Such radiative interactions rely, among other factors, on the ice content of MPCs, ...

    • Towards seamless environmental prediction–development of Pan-Eurasian EXperiment (PEEX) modelling platform 

      Mahura, Alexander; Baklanov, Alexander; Makkonen, Risto; Boy, Michael; Petäjä, Tuukka; Lappalainen, Hanna K.; Nuterman, Roman; Kerminen, Veli-Matti; Arnold, Stephen R.; Jochum, Markus; Shvidenko, Anatoly; Esau, Igor; Sofiev, Mikhail; Stohl, Andreas; Aalto, Tuula; Bai, Jianhui; Chen, Chuchu; Cheng, Yafang; Drofa, Oxana; Huang, Mei; Järvi, Leena; Kokkola, Harri; Kouznetsov, Rostislav; Li, Tingting; Malguzzi, Piero; Monks, Sarah; Poulsen, Mads Bruun; Noe, Steffen M.; Palamarchuk, Yuliia; Foreback, Benjamin; Clusius, Petri; Rasmussen, Till Andreas Soya; She, Jun; Sørensen, Jens Havskov; Spracklen, Dominick; Su, Hang; Tonttila, Juha; Wang, Siwen; Wang, Jiandong; Wolf, Tobias; Yu, Yongqiang; Zhang, Qing; Zhang, Wei; Zhang, Wen; Zheng, Xunhua; Li, Siqi; Li, Yong; Zhou, Putian; Kulmala, Markku (Peer reviewed; Journal article, 2024)
      The Pan-Eurasian Experiment Modelling Platform (PEEX-MP) is one of the key blocks of the PEEX Research Programme. The PEEX MP has more than 30 models and is directed towards seamless environmental prediction. The main focus ...

    • Energetic particle precipitation influences global secondary ozone distribution 

      Jia, Jia; Murberg, Lise Eder; Løvset, Tiril; Orsolini, Yvan; Espy, Patrick Joseph; Zeller, Lilou C. G.; Salinas, Cornelius Csar Jude H.; Lee, Jae N.; Wu, Dong; Zhang, Jiarong (Peer reviewed; Journal article, 2024)
      The secondary ozone layer is a global peak in ozone abundance in the upper mesosphere-lower thermosphere (UMLT) around 90-95 km. The effect of energetic particle precipitation (EPP) from geomagnetic processes on this UMLT ...

    • Long-term meteorology-adjusted and unadjusted trends of PM2.5 using the AirGAM model over Delhi, 2007–2022 

      Chetna, NN; Dhaka, Surendra K.; Walker, Sam-Erik; Rawat, Vikas; Singh, Narendra (Peer reviewed; Journal article, 2024)
      This study investigates the impact of meteorological variations on the long-term patterns of PM2.5 in Delhi from 2007 to 2022 using the AirGAM 2022r1 model. Generalized Additive Modeling was employed to analyze ...

    • Forecasting the Exceedances of PM2.5 in an Urban Area 

      Logothetis, Stavros-Andreas; Kosmopoulos, Georgios; Panagopoulos, Orestis; Salamalikis, Vasileios; Kazantzidis, Andreas (Peer reviewed; Journal article, 2024)
      Particular matter (PM) constitutes one of the major air pollutants. Human exposure to fine PM (PM with a median diameter less than or equal to 2.5 μm, PM2.5) has many negative and diverse outcomes for human health, such ...

    • Limits to graphite supply in a transition to a post-fossil society 

      Barre, Francis Isidore; Billy, Romain Guillaume; Aguilar Lopez, Fernando; Mueller, Daniel Beat (Peer reviewed; Journal article, 2024)
      Transitioning to electric vehicles (EVs) powered by lithium-ion batteries (LIBs) aims at reducing emissions in the transportation sector, thereby decreasing fuel oil use and crude oil extraction. Yet, synthetic graphite, ...

    • A Machine Learning Approach to Retrieving Aerosol Optical Depth Using Solar Radiation Measurements 

      Logothetis, Stavros-Andreas; Salamalikis, Vasileios; Kazantzidis, Andreas (Peer reviewed; Journal article, 2024)
      Aerosol optical depth (AOD) constitutes a key parameter of aerosols, providing vital information for quantifying the aerosol burden and air quality at global and regional levels. This study demonstrates a machine learning ...

    • Estimating volcanic ash emissions using retrieved satellite ash columns and inverse ash transport modelling using VolcanicAshInversion v1.2.1, within the operational eEMEP volcanic plume forecasting system (version rv4_17) 

      Brodtkorb, André R.; Benedictow, Anna Maria Katarina; Klein, Heiko; Kylling, Arve; Nyiri, Agnes; Valdebenito Bustamante, Alvaro Moises; Sollum, Espen; Kristiansen, Nina Iren (Peer reviewed; Journal article, 2024)
      Accurate modeling of ash clouds from volcanic eruptions requires knowledge about the eruption source parameters including eruption onset, duration, mass eruption rates, particle size distribution, and vertical-emission ...

    • Estimating stratospheric polar vortex strength using ambient ocean-generated infrasound and stochastics-based machine learning 

      Vorobeva, Ekaterina; Eggen, Mari Dahl; Midtfjord, Alise Danielle; Benth, Fred Espen; Hupe, Patrick; Brissaud, Quentin; Orsolini, Yvan Joseph Georges Emile G.; Näsholm, Sven Peter (Peer reviewed; Journal article, 2024)
      There are sparse opportunities for direct measurement of upper stratospheric winds, yet improving their representation in subseasonal-to-seasonal prediction models can have significant benefits. There is solid evidence ...

    • Emission ensemble approach to improve the development of multi-scale emission inventories 

      Thunis, Philippe; Kuenen, Jeroen; Pisoni, Enrico; Bessagnet, Bertrand; Banja, Manjola; Gawuc, Lech; Szymankiewicz, Karol; Guizardi, Diego; Crippa, Monica; Lopez-Aparicio, Susana; Guevara, Marc; de Meij, Alexander; Schindlbacher, Sabine; Clappier, Alain (Peer reviewed; Journal article, 2024)
      Many studies have shown that emission inventories are one of the inputs with the most critical influences on the results of air quality modelling. Comparing emission inventories among themselves is, therefore, essential ...

    • Retrieval of Aerosol Optical Properties via an All-Sky Imager and Machine Learning: Uncertainty in Direct Normal Irradiance Estimations 

      Logothetis, Stavros-Andreas; Giannaklis, Christos-Panagiotis; Salamalikis, Vasileios; Tzoumanikas, Panagiotis; Raptis, Panagiotis-Ioannis; Amiridis, Vassilis; Eleftheratos, Kostas; Kazantzidis, Andreas (Journal article, 2023)
      Quality-assured aerosol optical properties (AOP) with high spatiotemporal resolution are vital for the accurate estimation of direct aerosol radiative forcing and solar irradiance under clear skies. In this study, the sky ...

    • Accurate Lightweight Calibration Methods for Mobile Low-Cost Particulate Matter Sensors 

      Jørstad, Per Martin; Wojcikowski, Marek; Cao, Tuan-Vu; Lepioufle, Jean-Marie; Wojtkiewicz, Krystian; Ha, Hoai Phuong (Chapter, 2023)

    • Simulations of Sky Radiances in Red and Blue Channels at Various Aerosol Conditions Using Radiative Transfer Modeling 

      Giannaklis, Christos-Panagiotis; Logothetis, Stavros-Andreas; Salamalikis, Vasileios; Tzoumanikas, Panagiotis; Katsidimas, Konstantinos; Kazantzidis, Andreas (Journal article, 2023)
      We conducted a theoretical analysis of the relationship between red-to-blue (RBR) color intensities and aerosol optical properties. RBR values are obtained by radiative transfer simulations of diffuse sky radiances. Changes ...

    • Impact of Biomass Burning on Arctic Aerosol Composition 

      Gramlich, Yvette; Siegel, Karolina; Haslett, Sophie L.; Cremer, Roxana S.; Lunder, Chris Rene; Kommula, Snehitha M.; Buchholz, Angela; Yttri, Karl Espen; Chen, Gang; Krejci, Radovan; Zieger, Paul; Virtanen, Annele; Riipinen, Ilona; Mohr, Claudia (Peer reviewed; Journal article, 2024)
      Emissions from biomass burning (BB) occurring at midlatitudes can reach the Arctic, where they influence the remote aerosol population. By using measurements of levoglucosan and black carbon, we identify seven BB events ...

    • Understanding individual heat exposure through interdisciplinary research on thermoception 

      Serrano, Paloma Yáñez; Bieńkowska, Zofia; Chwałczyk, Franciszek; Hassani, Amirhossein (Peer reviewed; Journal article, 2024)
      Extreme heat events are more frequent and more intense globally due to climate change. The urban environment is an additional factor enhancing the effects of heat. Adults above 65 years old are especially at risk due to ...

    • Estimation of the atmospheric hydroxyl radical oxidative capacity using multiple hydrofluorocarbons (HFCs) 

      Thompson, Rona Louise; Montzka, Stephen A.; Vollmer, Martin K.; Arduini, Jgor; Crotwell, Molly; Krummel, Paul B.; Lunder, Chris Rene; Mühle, Jens; O'doherty, Simon; Prinn, Ronald G.; Reimann, Stefan; Vimont, Isaac; Wang, Hsiang; Weiss, Ray F.; Young, Dickon (Peer reviewed; Journal article, 2024)
      The hydroxyl radical (OH) largely determines the atmosphere's oxidative capacity and, thus, the lifetimes of numerous trace gases, including methane (CH4). Hitherto, observation-based approaches for estimating the atmospheric ...

    • PM2.5 Retrieval Using Aerosol Optical Depth, Meteorological Variables, and Artificial Intelligence 

      Logothetis, Stavros-Andreas; Kosmopoulos, Georgios; Salamalikis, Vasileios; Kazantzidis, Andreas (Journal article, 2032)
      Particulate matter (PM) is one of the major air pollutants that has adverse impacts on human health. The aim of this study is to present an alternative approach for retrieving fine PM (particles with an aerodynamic diameter ...

    • Design of multi-luminescent silica-based nanoparticles for the detection of liquid organic compounds 

      Delic, Asmira; Lindgren, Mikael; Psarrou, Maria; Economopoulos, Solon; Mariussen, Espen; Krivokapic, Alexander; Torsæter, Ole; Omran, Mohamed; Einarsrud, Mari-Ann (Peer reviewed; Journal article, 2024)
      Tracer testing in reservoir formations is utilised to determine residual oil saturation as part of optimum hydrocarbon production. Here, we present a novel detection method of liquid organic compounds by monodisperse SiO2 ...

    • Effect of Long-Range Transported Fire Aerosols on Cloud Condensation Nuclei Concentrations and Cloud Properties at High Latitudes 

      Kommula, Snehitha M.; Buchholz, Angela; Gramlich, Yvette; Mielonen, Tero; Hao, L.; Pullinen, Iida; Vettikkat, Lejish; Ylisirniö, A.; Joutsensaari, J.; Schobesberger, Siegfried; Tiitta, P; Leskinen, Ari; Heslin-Rees, Dominic; Haslett, S. L.; Siegel, Karolina; Lunder, Chris Rene; Zieger, Paul; Krejci, Radovan; Romakkaniemi, Sami; Mohr, C.; Virtanen, Annele (Peer reviewed; Journal article, 2024)
      Active vegetation fires in south-eastern (SE) Europe resulted in a notable increase in the number concentration of aerosols and cloud condensation nuclei (CCN) particles at two high latitude locations—the SMEAR IV station ...