Blar i NILU Brage på forfatter "Eleftheriadis, Konstantinos"
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A new methodology to assess the performance and uncertainty of source apportionment models II: The results of two European intercomparison exercises
Belis, Claudio A.; Karagulian, Federico; Amato, Fulvio; Almeida, Manuel; Artaxo, Paulo; Beddows, David C.S.; Bernardoni, Vera; Bove, Maria Chiara; Carbone, Samara; Cesari, Daniela; Contini, Daniele; Cuccia, Eleonora; Diapouli, Evangelia; Eleftheriadis, Konstantinos; Favez, Olivier; El Haddad, Imad; Harrison, Roy M.; Hellebust, Stig; Hovorka, Jan A.N.; Jang, Eunhwa; Jorquera, Hector; Kammermeier, Tom; Karl, Matthias; Lucarelli, Franco; Mooibroek, Dennis; Nava, Silvia; Nøjgaard, Jacob Klenø; Paatero, Pentti; Pandolfi, Marco; Perrone, Maria Grazia; Petit, Jean Eudes; Pietrodangelo, Adriana; Pokorná, Pavla; Prati, Paolo; Prévôt, André S.H.; Quass, Ulrich; Querol, Xavier; Saraga, Dikaia E.; Sciare, Jean; Sfetsos, Athanasios; Valli, Gianluigi; Vecchi, Roberta; Vestenius, Mika; Yubero, Eduardo; Hopke, Philip K. (Journal article; Peer reviewed, 2015) -
Aerosol carbonaceous, elemental and ionic composition variability and origin at the Siberian High Arctic, Cape Baranova
Manousakas, Manousos; Popovicheva, Olga; Evangeliou, Nikolaos; Diapouli, Evangelia; Sitnikov, Nikolay; Shonija, N.; Eleftheriadis, Konstantinos (Peer reviewed; Journal article, 2020)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 ... -
Atmospheric composition in the European Arctic and 30 years of the Zeppelin Observatory, Ny-Ålesund
Platt, Stephen Matthew; Hov, Øystein; Berg, Torunn; Breivik, Knut; Eckhardt, Sabine; Eleftheriadis, Konstantinos; Evangeliou, Nikolaos; Fiebig, Markus; Fisher, Rebecca; Hansen, Georg Heinrich; Hansson, Hans-Christen; Heintzenberg, Jost; Hermansen, Ove; Heslin-Rees, Dominic; Holmén, Kim; Hudson, Stephen; Kallenborn, Roland; Krejci, Radovan; Krognes, Terje; Larssen, Steinar; Lowry, David; Myhre, Cathrine Lund; Lunder, Chris Rene; Nisbet, Euan; Bohlin-Nizzetto, Pernilla; Park, Ki-Tae; Pedersen, Christina Alsvik; Pfaffhuber, Katrine Aspmo; Röckmann, Thomas; Schmidbauer, Norbert; Solberg, Sverre; Stohl, Andreas; Ström, Johan; Svendby, Tove Marit; Tunved, Peter; Tørnkvist, Kjersti Karlsen; van der Veen, Carina; Vratolis, Stergios; Jun Yoon, Young; Yttri, Karl Espen; Zieger, Paul; Aas, Wenche; Tørseth, Kjetil (Peer reviewed; Journal article, 2022)The Zeppelin Observatory (78.90∘ N, 11.88∘ E) is located on Zeppelin Mountain at 472 m a.s.l. on Spitsbergen, the largest island of the Svalbard archipelago. Established in 1989, the observatory is part of Ny-Ålesund ... -
Black carbon sources constrained by observations in the Russian high Arctic
Popovicheva, Olga; Evangeliou, Nikolaos; Eleftheriadis, Konstantinos; Kalogridis, Athina C.; Sitnikov, Nikolay; Eckhardt, Sabine; Stohl, Andreas (Journal article; Peer reviewed, 2017) -
Changes in black carbon emissions over Europe due to COVID-19 lockdowns
Evangeliou, Nikolaos; Platt, Stephen Matthew; Eckhardt, Sabine; Myhre, Cathrine Lund; Laj, Paolo; Alados-Arboledas, Lucas; Backman, John; Brem, Benjamin T.; Fiebig, Markus; Flentje, Harald; Marinoni, Angela; Pandolfi, Marco; Yus-Diez, Jesus; Prats, Natalia; Putaud, Jean-Philippe; Sellegri, Karine; Sorribas, Mar; Eleftheriadis, Konstantinos; Vratolis, Stergios; Wiedensohler, Alfred; Stohl, Andreas (Peer reviewed; Journal article, 2021)Following the emergence of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) responsible for COVID-19 in December 2019 in Wuhan (China) and its spread to the rest of the world, the World Health Organization ... -
Deposition of ionic species and black carbon to the Arctic snowpack: combining snow pit observations with modeling
Jacobi, Hans-Werner; Obleitner, Friedrich; Da Costa, Sophie; Ginot, Patrick; Eleftheriadis, Konstantinos; Aas, Wenche; Zanatta, Marco (Journal article; Peer reviewed, 2019)Although aerosols in the Arctic have multiple and complex impacts on the regional climate, their removal due to deposition is still not well quantified. We combined meteorological, aerosol, precipitation, and snowpack ... -
Elucidating the present-day chemical composition, seasonality and source regions of climate-relevant aerosols across the Arctic land surface
Moschos, Vaios; Schmale, Julia; Aas, Wenche; Becagli, Silvia; Calzolai, Giulia; Eleftheriadis, Konstantinos; Moffett, Claire E.; Schnelle-Kreis, Jürgen; Severi, Mirko; Sharma, Sangeeta; Skov, Henrik; Vestenius, Mika; Zhang, Wendy; Hakola, Hannele; Hellén, Heidi; Huang, Lin; Jaffrezo, Jean-Luc; Massling, Andreas; Nøjgaard, Jacob Klenø; Petäjä, Tuukka; Popovicheva, Olga; Sheesley, Rebecca J.; Traversi, Rita; Yttri, Karl Espen; Prévôt, André S. H.; Baltensperger, Urs; El Haddad, Imad (Peer reviewed; Journal article, 2022)The Arctic is warming two to three times faster than the global average, and the role of aerosols is not well constrained. Aerosol number concentrations can be very low in remote environments, rendering local cloud radiative ... -
Equal abundance of summertime natural and wintertime anthropogenic Arctic organic aerosols
Moschos, Vaios; Dzepina, Katja; Bhattu, Deepika; Lamkaddam, Houssni; Casotto, Roberto; Daellenbach, Kaspar R.; Canonaco, Francesco; Rai, Pragati; Aas, Wenche; Becagli, Silvia; Calzolai, Giulia; Eleftheriadis, Konstantinos; Moffett, Claire E.; Schnelle-Kreis, Jürgen; Seviri, Mirko; Sharma, Sangeeta; Skov, Henrik; Vestenius, Mika; Zhang, Wendy; Hakola, Hannele; Hellén, Heidi; Huang, Lin; Jaffrezo, Jean-Luc; Massling, Andreas; Nøjgaard, Jacob Klenø; Petäjä, Tuukka; Popovicheva, Olga; Sheesley, Rebecca J.; Traversi, Rita; Yttri, Karl Espen; Schmale, Julia; Prévôt, André S. H.; Baltensperger, Urs; El Haddad, Imad (Peer reviewed; Journal article, 2022)Aerosols play an important yet uncertain role in modulating the radiation balance of the sensitive Arctic atmosphere. Organic aerosol is one of the most abundant, yet least understood, fractions of the Arctic aerosol mass. ... -
European aerosol phenomenology − 8: Harmonised source apportionment of organic aerosol using 22 Year-long ACSM/AMS datasets
Chen, Gang; Canonaco, Francesco; Tobler, Anna; Aas, Wenche; Alastuey, Andres; Allan, James; Atabakhsh, Samira; Aurela, Minna; Baltensperger, Urs; Bougiatioti, Aikaterini; De Brito, Joel F.; Ceburnis, Darius; Chazeau, Benjamin; Chebaicheb, Hasna; Daellenbach, Kaspar R.; Ehn, Mikael; El Haddad, Imad; Eleftheriadis, Konstantinos; Favez, Olivier; Flentje, Harald; Font, Anna; Fossum, Kirsten; Freney, Evelyn; Gini, Maria; Green, David C; Heikkinen, Liine; Herrmann, Hartmut; Kalogridis, Athina-Cerise; Keernik, Hannes; Lhotka, Radek; Lin, Chunshui; Lunder, Chris Rene; Maasikmets, Marek; Manousakas, Manousos I.; Marchand, Nicolas; Marin, Cristina; Marmureanu, Luminita; Mihalopoulos, Nikolaos; Močnik, Griša; Nęcki, Jaroslaw; O'Dowd, Colin; Ovadnevaite, Jurgita; Peter, Thomas; Petit, Jean-Eudes; Pikridas, Michael; Platt, Stephen Matthew; Pokorná, Petra; Poulain, Laurent; Priestman, Max; Riffault, Véronique; Rinaldi, Matteo; Różański, Kazimierz; Schwarz, Jaroslav; Sciare, Jean; Simon, Leïla; Skiba, Alicja; Slowik, Jay G.; Sosedova, Yulia; Stavroulas, Iasonas; Styszko, Katarzyna; Teinemaa, Erik; Timonen, Hilkka; Tremper, Anja; Vasilescu, Jeni; Via, Marta; Vodička, Petr; Wiedensohler, Alfred; Zografou, Olga; Cruz Minguillón, María; Prévôt, André S.H. (Peer reviewed; Journal article, 2022)Organic aerosol (OA) is a key component of total submicron particulate matter (PM1), and comprehensive knowledge of OA sources across Europe is crucial to mitigate PM1 levels. Europe has a well-established air quality ... -
A global analysis of climate-relevant aerosol properties retrieved from the network of Global Atmosphere Watch (GAW) near-surface observatories
Laj, Paolo; Bigi, Alessandro; Rose, Clemence; Andrews, Elisabeth; Myhre, Cathrine Lund; Coen, Martine Collaud; Lin, Yong; Wiedensohler, Alfred; Schulz, Michael; Ogren, John A.; Fiebig, Markus; Gliss, Jonas; Mortier, Augustin; Pandolfi, Marco; Petäjä, Tuukka; Kim, Sang-Woo; Aas, Wenche; Putaud, Jean-Philippe; Mayol-Bracero, Olga; Keywood, Melita; Labrador, Lorenzo; Aalto, Pasi; Ahlberg, Erik; Arboledas, Lucas Alados; Alastuey, Andrés; Andrade, Marcos; Artiñano, Begoña; Ausmeel, Stina; Arsov, Todor; Asmi, Eija; Backman, John; Baltensperger, Urs; Bastian, Susanne; Bath, Olaf; Beukes, Johan Paul; Brem, Benjamin T.; Bukowiecki, Nicolas; Conil, Sébastien; Couret, Cedric; Day, Derek; Dayantolis, Wan; Degorska, Anna; Eleftheriadis, Konstantinos; Fetfatzis, Prodromos; Favez, Olivier; Flentje, Harald; Gini, Maria I.; Gregorič, Asta; Gysel-Beer, Martin; Hallar, A. Gannet; Hand, Jenny; Hoffer, András; Hueglin, Christoph; Hooda, Rakesh K.; Hyvärinen, Antti; Kalapov, Ivo; Kalivitis, Nikos; Kasper-Giebl, Anne; Kim, Jeong Eun; Kouvarakis, Giorgos; Kranjc, Irena; Krejci, Radovan; Kulmala, Markku; Labuschagne, Casper; Lee, Hae-Jung; Lihavainen, Heikki; Lin, Neng-Huei; Löschau, Gunter; Luoma, Krista; Marinoni, Angela; Dos Santos, Sebastiao Martins; Meinhardt, Frank; Merkel, Maik; Metzger, Jean-Marc; Mihalopoulos, Nikolaos; Nguyen, Nhat Anh; Ondráček, Jakub; Pérez, Noemi; Perrone, Maria Rita; Petit, Jean-Eudes; Picard, David; Pichon, Jean-Marc; Pont, Veronique; Prats, Natalia; Prenni, Anthony; Reisen, Fabienne; Romano, Salvatore; Sellegri, Karine; Sharma, Sangeeta; Schauer, Gerhard; Sheridan, Patrick; Sherman, James Patrick; Schütze, Maik; Schwerin, Andreas; Sohmer, Ralf; Sorribas, Mar; Steinbacher, Martin; Sun, Junying; Titos, Gloria; Toczko, Barbara; Tuch, Thomas; Tulet, Pierre; Tunved, Peter; Vakkari, Ville; Velarde, Fernando; Velasquez, Patricio; Villani, Paolo; Vratolis, Sterios; Wang, Sheng-Hsiang; Weinhold, Kay; Weller, Rolf; Yela, Margarita; Yus-Diez, Jesus; Ždímal, Vladimir; Zieger, Paul; Ziková, Naděžda (Peer reviewed; Journal article, 2020)Aerosol particles are essential constituents of the Earth's atmosphere, impacting the earth radiation balance directly by scattering and absorbing solar radiation, and indirectly by acting as cloud condensation nuclei. In ... -
Impact of 2020 COVID-19 lockdowns on particulate air pollution across Europe
Putaud, Jean-Philippe; Pisoni, Enrico; Mangold, Alexander; Hueglin, Christoph; Sciare, Jean; Pikridas, Michael; Savvides, Chrysantos; Ondráček, Jakub; Mbengue, Saliou; Wiedensohler, Alfred; Weinhold, Kay; Merkel, Maik; Poulain, Laurent; van Pinxteren, Dominik; Herrmann, Hartmut; Massling, Andreas; Nordstroem, Claus; Alastuey, Andres; Reche, Cristina; Perez, Noemi; Castillo, Sonia; Sorribas, Mar; Adame, Jose A.; Petäjä, Tuukka; Lehtipalo, Katrianne; Niemi, Jarkko; Riffault, Véronique; De Brito, Joel F.; Colette, Augustin; Favez, Olivier; Petit, Jean-Eudes; Gros, Valérie; Gini, Maria; Vratolis, Stergios; Eleftheriadis, Konstantinos; Diapouli, Evangelia; van der Gon, Hugo Denier; Yttri, Karl Espen; Aas, Wenche (Peer reviewed; Journal article, 2023)To fight against the first wave of coronavirus disease 2019 (COVID-19) in 2020, lockdown measures were implemented in most European countries. These lockdowns had well-documented effects on human mobility. We assessed the ... -
Indirect evidence of the composition of nucleation mode atmospheric particles in the high Arctic
Giamarelou, Maria; Eleftheriadis, Konstantinos; Nyeki, Stephan; Tunved, Peter; Tørseth, Kjetil; Biskos, George (Journal article; Peer reviewed, 2016) -
Large Circulation Patterns Strongly Modulate Long-Term Variability of Arctic Black Carbon Levels and Areas of Origin
Stathopoulos, Vasileios; Evangeliou, Nikolaos; Stohl, Andreas; Vratolis, Stergios; Matsoukas, Christos; Eleftheriadis, Konstantinos (Peer reviewed; Journal article, 2021)Black Carbon (BC) aerosol is a major climate forcer in the Arctic. Here, we present 15 years (2001–2015) of surface observations of the aerosol absorption coefficient babs (corresponding to Equivalent BC), obtained at the ... -
Large seasonal and interannual variations of biogenic sulfur compounds in the Arctic atmosphere (Svalbard; 78.9° N, 11.9° E)
Jang, Sehyun; Park, Ki-Tae; Lee, Kitack; Yoon, Young Jun; Kim, Kitae; Chung, Hyun Young; Jang, Eunho; Becagli, Silvia; Lee, Bang Young; Traversi, Rita; Eleftheriadis, Konstantinos; Krejci, Radovan; Hermansen, Ove (Peer reviewed; Journal article, 2021)Seasonal to interannual variations in the concentrations of sulfur aerosols (< 2.5 µm in diameter; non sea-salt sulfate: NSS-SO2−4; anthropogenic sulfate: Anth-SO2−4; biogenic sulfate: Bio-SO2−4; methanesulfonic acid: MSA) ... -
Model evaluation of short-lived climate forcers for the Arctic Monitoring and Assessment Programme: a multi-species, multi-model study
Whaley, Cynthia; Mahmood, Rashed; von Salzen, Knut; Winter, Barbara; Eckhardt, Sabine; Arnold, Stephen R.; Beagley, Stephen; Becagli, Silvia; Chien, Rong-You; Christensen, Jesper; Damani, Sujay Manish; Dong, Xinyi; Eleftheriadis, Konstantinos; Evangeliou, Nikolaos; Faluvegi, Gregory; Flanner, Mark G.; Fu, Joshua S.; Gauss, Michael; Giardi, Fabio; Gong, Wanmin; Hjorth, Jens Liengaard; Huang, Lin; Im, Ulas; Kanaya, Yugo; Srinath, Krishnan; Klimont, Zbigniew; Kuhn, Thomas; Langner, Joakim; Law, Kathy S.; Marelle, Louis; Massling, Andreas; Oliviè, Dirk Jan Leo; Onishi, Tatsuo; Oshima, Naga; Peng, Yiran; Plummer, David A.; Pozzoli, Luca; Popovicheva, Olga; Raut, Jean-Christophe; Sand, Maria; Saunders, Laura; Schmale, Julia; Sharma, Sangeeta; Skeie, Ragnhild Bieltvedt; Skov, Henrik; Taketani, Fumikazu; Thomas, Manu Anna; Traversi, Rita; Tsigaridis, Kostas; Tsyro, Svetlana; Turnock, Steven T; Vitale, Vito; Walker, Kaley A.; Wang, Minqi; Watson-Parris, Duncan; Weiss-Gibbons, Tahya (Peer reviewed; Journal article, 2022)While carbon dioxide is the main cause for global warming, modeling short-lived climate forcers (SLCFs) such as methane, ozone, and particles in the Arctic allows us to simulate near-term climate and health impacts for a ... -
Multidecadal trend analysis of in situ aerosol radiative properties around the world
Coen, Martine Collaud; Andrews, Elisabeth; Alastuey, Andrés; Arsov, Todor Petkov; Backman, John; Brem, Benjamin T.; Bukowiecki, Nicolas; Couret, Cedric; Eleftheriadis, Konstantinos; Flentje, Harald; Fiebig, Markus; Gysel-Beer, Martin; Hand, Jenny; Hoffer, András; Hooda, Rakesh; Hueglin, Christoph; Joubert, Warren; Keywood, Melita; Kim, Jeong Eun; Kim, Sang-Woo; Labuschagne, Casper; Lin, Neng-Huei; Lin, Yong; Myhre, Cathrine Lund; Luoma, Krista; Lyamani, Hassan; Marinoni, Angela; Mayol-Bracero, Olga L.; Mihalopoulos, Nikos; Pandolfi, Marco; Prats, Natalia; Prenni, Anthony J.; Putaud, Jean-Philippe; Ries, Ludwig; Reisen, Fabienne; Sellegri, Karine; Sharma, Sangeeta; Sheridan, Patrick; Sherman, James Patrick; Sun, Junying; Titos, Gloria; Torres, Elvis; Tuch, Thomas; Weller, Rolf; Wiedensohler, Alfred; Zieger, Paul; Laj, Paolo (Peer reviewed; Journal article, 2020)In order to assess the evolution of aerosol parameters affecting climate change, a long-term trend analysis of aerosol optical properties was performed on time series from 52 stations situated across five continents. The ... -
On Aethalometer measurement uncertainties and an instrument correction factor for the Arctic
Backman, John; Schmeisser, Lauren N.; Virkkula, Aki; Ogren, John A.; Asmi, Eija; Starkweather, Sandra; Sharma, Sangeeta; Eleftheriadis, Konstantinos; Uttal, Taneil; Jefferson, Anne; Bergin, Michael H.; Makshtas, Alexander; Tunved, Peter; Fiebig, Markus (Journal article; Peer reviewed, 2017) -
Optical and Microphysical Properties of the Aerosols during a Rare Event of Biomass-Burning Mixed with Polluted Dust
Gidarakou, Marilena; Papayannis, Alexandros; Kokkalis, Panagiotis; Evangeliou, Nikolaos; Vratolis, Stergios; Remoundaki, Emmanouella; Zwaaftink, Christine Groot; Eckhardt, Sabine; Veselovskii, Igor; Mylonaki, Maria; Argyrouli, Athina; Eleftheriadis, Konstantinos; Solomos, Stavros; Gini, Maria (Peer reviewed; Journal article, 2024)A rare event of mixed biomass-burning and polluted dust aerosols was observed over Athens, Greece (37.9° N, 23.6° E), during 21–26 May 2014. This event was studied using a synergy of a 6-wavelength elastic-Raman-depolarization ... -
Re-evaluation and Homogenization of Aerosol Optical Depth Observations in Svalbard (ReHearsol). RCN Project No: 311250/E40 - ReHearsol Final Report
Hansen, Georg H.; Zielinski, Tymon; Pakszys, Paulina; Ritter, Christoph; Gilardoni, Stefania; Eleftheriadis, Konstantinos; Kouremeti, Natalia; Mateos, David; Herrero, Sara; Kazadzis, Stelios; Mazzola, Mauro; Stebel, Kerstin (NILU report;3/2022, Research report, 2022)The aim of this project was to collect, integrate and analyse observations of climate-relevant aerosol parameters (aerosol optical depth (AOD), Ångstrøm exponent (AE), black carbon (BC)) in and around Svalbard. These ... -
Recommendations for reporting equivalent black carbon (eBC) mass concentrations based on long-term pan-European in-situ observations
Savadkoohi, Marjan; Pandolfi, Marco; Favez, Olivier; Putaud, Jean-Philippe; Eleftheriadis, Konstantinos; Fiebig, Markus; Hopke, Philip K.; Laj, Paolo G.; Wiedensohler, Alfred; Alados-Arboledas, Lucas; Bastian, Susanne; Chazeau, Benjamin; Maria, Alvaro Clemente; Colombi, Cristina; Costabile, Francesca; Green, David C.; Hueglin, Christoph; Liakakou, Eleni; Luoma, Krista; Listrani, Stefano; Mihalopoulos, Nikos; Marchand, Nicolas; Močnik, Griša; Niemi, Jarkko V; Ondráček, Jakub; Petit, Jean Eudes; Rattigan, Oliver V.; Reche, Cristina; Timonen, Hilkka; Titos, Gloria; Tremper, Anja H.; Vratolis, Stergios; Vodicka, Petr; Funes, Eduardo Yubero; Zíková, Naděžda; Harrison, Roy M.; Petäjä, Tuukka; Alastuey, Andrés; Querol, Xavier (Peer reviewed; Journal article, 2024)A reliable determination of equivalent black carbon (eBC) mass concentrations derived from filter absorption photometers (FAPs) measurements depends on the appropriate quantification of the mass absorption cross-section ...