Search Results - "Äijälä, M."

Impact on short-lived climate forcers increases projected warming due to deforestation by Scott, C. E., Monks, S. A., Spracklen, D. V., Arnold, S. R., Forster, P. M., Rap, A., Äijälä, M., Artaxo, P., Carslaw, K. S., Chipperfield, M. P., Ehn, M., Gilardoni, S., Heikkinen, L., Kulmala, M., Petäjä, T., Reddington, C. L. S., Rizzo, L. V., Swietlicki, E., Vignati, E., Wilson, C.

“…The climate impact of deforestation depends on the relative strength of several biogeochemical and biogeophysical effects. In addition to affecting the…”
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Organic aerosol components derived from 25 AMS data sets across Europe using a consistent ME-2 based source apportionment approach by Crippa, M., Canonaco, F., Lanz, V. A., Äijälä, M., Allan, J. D., Carbone, S., Capes, G., Ceburnis, D., Dall'Osto, M., Day, D. A., DeCarlo, P. F., Ehn, M., Eriksson, A., Freney, E., Hildebrandt Ruiz, L., Hillamo, R., Jimenez, J. L., Junninen, H., Kiendler-Scharr, A., Kortelainen, A.-M., Kulmala, M., Laaksonen, A., Mensah, A. A., Mohr, C., Nemitz, E., O'Dowd, C., Ovadnevaite, J., Pandis, S. N., Petäjä, T., Poulain, L., Saarikoski, S., Sellegri, K., Swietlicki, E., Tiitta, P., Worsnop, D. R., Baltensperger, U., Prévôt, A. S. H.

“…Organic aerosols (OA) represent one of the major constituents of submicron particulate matter (PM1) and comprise a huge variety of compounds emitted by…”
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Influence of biogenic emissions from boreal forests on aerosol–cloud interactions by Petäjä, T., Tabakova, K., Manninen, A., Ezhova, E., O’Connor, E., Moisseev, D., Sinclair, V. A., Backman, J., Levula, J., Luoma, K., Virkkula, A., Paramonov, M., Räty, M., Äijälä, M., Heikkinen, L., Ehn, M., Sipilä, M., Yli-Juuti, T., Virtanen, A., Ritsche, M., Hickmon, N., Pulik, G., Rosenfeld, D., Worsnop, D. R., Bäck, J., Kulmala, M., Kerminen, V.-M.

“…Boreal forest acts as a carbon sink and contributes to the formation of secondary organic aerosols via emission of aerosol precursor compounds. However, these…”
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Low hygroscopic scattering enhancement of boreal aerosol and the implications for a columnar optical closure study by Zieger, P, Aalto, P. P, Aaltonen, V, Äijälä, M, Backman, J, Hong, J, Komppula, M, Krejci, R, Laborde, M, Lampilahti, J, de Leeuw, G, Pfüller, A, Rosati, B, Tesche, M, Tunved, P, Väänänen, R, Petäjä, T

“…Ambient aerosol particles can take up water and thus change their optical properties depending on the hygroscopicity and the relative humidity (RH) of the…”
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Biogenic and biomass burning organic aerosol in a boreal forest at Hyytiälä, Finland, during HUMPPA-COPEC 2010 by Corrigan, A. L., Russell, L. M., Takahama, S., Äijälä, M., Ehn, M., Junninen, H., Rinne, J., Petäjä, T., Kulmala, M., Vogel, A. L., Hoffmann, T., Ebben, C. J., Geiger, F. M., Chhabra, P., Seinfeld, J. H., Worsnop, D. R., Song, W., Auld, J., Williams, J.

“…Submicron aerosol particles were collected during July and August 2010 in Hyytiälä, Finland, to determine the composition and sources of aerosol at that boreal…”
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Long-term sub-micrometer aerosol chemical composition in the boreal forest: inter- and intra-annual variability by Heikkinen, Liine, Ãijälä, Mikko, Riva, Matthieu, Luoma, Krista, Dällenbach, Kaspar, Aalto, Juho, Aalto, Pasi, Aliaga, Diego, Aurela, Minna, Keskinen, Helmi, Makkonen, Ulla, Rantala, Pekka, Kulmala, Markku, Petäjä, Tuukka, Worsnop, Douglas, Ehn, Mikael

“…The Station for Measuring Ecosystem–Atmosphere Relations (SMEAR) II is well known among atmospheric scientists due to the immense amount of observational data…”
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Dietary sodium intake and prediction of cardiovascular events by Äijälä, M, Malo, E, Santaniemi, M, Bloigu, R, Silaste, M-L, Kesäniemi, Y A, Ukkola, O

“…Background/Objectives: The association of dietary sodium and cardiovascular disease (CVD), as well as the reduction of sodium intake in the prevention of CVD,…”
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Relating the hygroscopic properties of submicron aerosol to both gas- and particle-phase chemical composition in a boreal forest environment by Hong, J, Kim, J, Nieminen, T, Duplissy, J, Ehn, M, Äijälä, M, Hao, L. Q, Nie, W, Sarnela, N, Prisle, N. L, Kulmala, M, Virtanen, A, Petäjä, T, Kerminen, V.-M

“…Measurements of the hygroscopicity of 15–145 nm particles in a boreal forest environment were conducted using two Hygroscopicity Tandem Differential Mobility…”
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Online atmospheric pressure chemical ionization ion trap mass spectrometry (APCI-IT-MS n ) for measuring organic acids in concentrated bulk aerosol – a laboratory and field study by Vogel, A. L, Äijälä, M, Brüggemann, M, Ehn, M, Junninen, H, Petäjä, T, Worsnop, D. R, Kulmala, M, Williams, J, Hoffmann, T

“…The field application of an aerosol concentrator in conjunction with an atmospheric pressure chemical ionization ion trap mass spectrometer (APCI-IT-MS) at the…”
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Towards an online-coupled chemistry-climate model: evaluation of trace gases and aerosols in COSMO-ART by Knote, C, Brunner, D, Vogel, H, Allan, J, Asmi, A, Aijaelae, M, Carbone, S, van der Gon, HD, Jimenez, J L, Kiendler-Scharr, A, Mohr, C, Poulain, L, Prevot, ASH, Swietlicki, E, Vogel, B

“…The online-coupled, regional chemistry transport model COSMO-ART is evaluated for periods in all seasons against several measurement datasets to assess its…”
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Selective age-related changes in orientation perception by Pilz, Karin S, Äijälä, Juho M, Manassi, Mauro

“…Orientation perception is a fundamental property of the visual system and an important basic processing stage for visual scene perception. Neurophysiological…”
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Ubiquity of organic nitrates from nighttime chemistry in the European submicron aerosol by Kiendler‐Scharr, A., Mensah, A. A., Friese, E., Topping, D., Nemitz, E., Prevot, A. S. H., Äijälä, M., Allan, J., Canonaco, F., Canagaratna, M., Carbone, S., Crippa, M., Dall Osto, M., Day, D. A., De Carlo, P., Di Marco, C. F., Elbern, H., Eriksson, A., Freney, E., Hao, L., Herrmann, H., Hildebrandt, L., Hillamo, R., Jimenez, J. L., Laaksonen, A., McFiggans, G., Mohr, C., O'Dowd, C., Otjes, R., Ovadnevaite, J., Pandis, S. N., Poulain, L., Schlag, P., Sellegri, K., Swietlicki, E., Tiitta, P., Vermeulen, A., Wahner, A., Worsnop, D., Wu, H.‐C.

“…In the atmosphere nighttime removal of volatile organic compounds is initiated to a large extent by reaction with the nitrate radical (NO3) forming organic…”
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Hygroscopicity, CCN and volatility properties of submicron atmospheric aerosol in a boreal forest environment during the summer of 2010 by Hong, J, Häkkinen, S. A. K, Paramonov, M, Äijälä, M, Hakala, J, Nieminen, T, Mikkilä, J, Prisle, N. L, Kulmala, M, Riipinen, I, Bilde, M, Kerminen, V.-M, Petäjä, T

“…A Volatility-Hygroscopicity Tandem Differential Mobility Analyzer (VH-TDMA) was applied to study the hygroscopicity and volatility properties of submicron…”
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Long-term volatility measurements of submicron atmospheric aerosol in Hyytiälä, Finland by Häkkinen, S. A. K., Äijälä, M., Lehtipalo, K., Junninen, H., Backman, J., Virkkula, A., Nieminen, T., Vestenius, M., Hakola, H., Ehn, M., Worsnop, D. R., Kulmala, M., Petäjä, T., Riipinen, I.

“…The volatility of submicron atmospheric aerosol particles was investigated at a boreal forest site in Hyytiälä, Finland from January 2008 to May 2010. These…”
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Insights into atmospheric oxidation processes by performing factor analyses on subranges of mass spectra by Zhang, Yanjun, Peräkylä, Otso, Yan, Chao, Heikkinen, Liine, Ãijälä, Mikko, Daellenbach, Kaspar R, Zha, Qiaozhi, Riva, Matthieu, Garmash, Olga, Junninen, Heikki, Paatero, Pentti, Worsnop, Douglas, Ehn, Mikael

“…Our understanding of atmospheric oxidation chemistry has improved significantly in recent years, greatly facilitated by developments in mass spectrometry. The…”
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ACTRIS ACSM intercomparison – Part 2: Intercomparison of ME-2 organic source apportionment results from 15 individual, co-located aerosol mass spectrometers by Fröhlich, R., Crenn, V., Setyan, A., Belis, C. A., Canonaco, F., Favez, O., Riffault, V., Slowik, J. G., Aas, W., Aijälä, M., Alastuey, A., Artiñano, B., Bonnaire, N., Bozzetti, C., Bressi, M., Carbone, C., Coz, E., Croteau, P. L., Cubison, M. J., Esser-Gietl, J. K., Green, D. C., Gros, V., Heikkinen, L., Herrmann, H., Jayne, J. T., Lunder, C. R., Minguillón, M. C., Močnik, G., O'Dowd, C. D., Ovadnevaite, J., Petralia, E., Poulain, L., Priestman, M., Ripoll, A., Sarda-Estève, R., Wiedensohler, A., Baltensperger, U., Sciare, J., Prévôt, A. S. H.

“…Chemically resolved atmospheric aerosol data sets from the largest intercomparison of the Aerodyne aerosol chemical speciation monitors (ACSMs) performed to…”
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In situ submicron organic aerosol characterization at a boreal forest research station during HUMPPA-COPEC 2010 using soft and hard ionization mass spectrometry by Vogel, A. L, Äijälä, M, Corrigan, A. L, Junninen, H, Ehn, M, Petäjä, T, Worsnop, D. R, Kulmala, M, Russell, L. M, Williams, J, Hoffmann, T

“…The chemical composition of submicron aerosol during the comprehensive field campaign HUMPPA-COPEC 2010 at Hyytiälä, Finland, is presented. The focus lies on…”
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A novel approach for simple statistical analysis of high-resolution mass spectra by Zhang, Yanjun, Peräkylä, Otso, Yan, Chao, Heikkinen, Liine, Äijälä, Mikko, Daellenbach, Kaspar R, Zha, Qiaozhi, Riva, Matthieu, Garmash, Olga, Junninen, Heikki, Paatero, Pentti, Worsnop, Douglas, Ehn, Mikael

“…Recent advancements in atmospheric mass spectrometry provide huge amounts of new information but at the same time present considerable challenges for the data…”
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Long-term cloud condensation nuclei number concentration, particle number size distribution and chemical composition measurements at regionally representative observatories by Schmale, Julia, Henning, Silvia, Decesari, Stefano, Henzing, Bas, Keskinen, Helmi, Sellegri, Karine, Ovadnevaite, Jurgita, Pöhlker, Mira L, Brito, Joel, Bougiatioti, Aikaterini, Kristensson, Adam, Kalivitis, Nikos, Stavroulas, Iasonas, Carbone, Samara, Jefferson, Anne, Park, Minsu, Schlag, Patrick, Iwamoto, Yoko, Aalto, Pasi, Äijälä, Mikko, Bukowiecki, Nicolas, Ehn, Mikael, Frank, Göran, Fröhlich, Roman, Frumau, Arnoud, Herrmann, Erik, Herrmann, Hartmut, Holzinger, Rupert, Kos, Gerard, Kulmala, Markku, Mihalopoulos, Nikolaos, Nenes, Athanasios, O'Dowd, Colin, Petäjä, Tuukka, Picard, David, Pöhlker, Christopher, Pöschl, Ulrich, Poulain, Laurent, Prévôt, André Stephan Henry, Swietlicki, Erik, Andreae, Meinrat O, Artaxo, Paulo, Wiedensohler, Alfred, Ogren, John, Matsuki, Atsushi, Yum, Seong Soo, Stratmann, Frank, Baltensperger, Urs, Gysel, Martin

“…Aerosol–cloud interactions (ACI) constitute the single largest uncertainty in anthropogenic radiative forcing. To reduce the uncertainties and gain more…”
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Source characterization of highly oxidized multifunctional compounds in a boreal forest environment using positive matrix factorization by Yan, Chao, Nie, Wei, Äijälä, Mikko, Rissanen, Matti P, Canagaratna, Manjula R, Massoli, Paola, Junninen, Heikki, Jokinen, Tuija, Sarnela, Nina, Häme, Silja A. K, Schobesberger, Siegfried, Canonaco, Francesco, Yao, Lei, Prévôt, André S. H, Petäjä, Tuukka, Kulmala, Markku, Sipilä, Mikko, Worsnop, Douglas R, Ehn, Mikael

“…Highly oxidized multifunctional compounds (HOMs) have been demonstrated to be important for atmospheric secondary organic aerosols (SOA) and new-particle…”
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