Results 11 to 20 of about 1,404,769 (279)

Intermediate ions as indicator for local new particle formation [PDF]

Aerosol Research
Atmospheric aerosol particles have a considerable influence on climate via both aerosol–radiation and aerosol–cloud interactions. A major fraction of global aerosol particles, in terms of their number concentration, is due to atmospheric new particle ...
S. Tuovinen, J. Lampilahti, V.-M. Kerminen, M. Kulmala   +3 more
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Correlation between the Concentrations of Atmospheric Ions and Radon as Judged from Measurements at the Fonovaya Observatory [PDF]

Atmospheric and Oceanic Optics, 2022
The correlation between the radon influx into the atmosphere and the formation of ions has been studied from the data of observations at the Fonovaya Observatory of Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences.
Arshinov M, Belan B, Garmash O, Davydov D, Demakova A, Ezhova E, Kozlov A, Kulmala M, Lappalainen H, Petäjä T.   +9 more
europepmc   +2 more sources

Ions in the Atmosphere [PDF]

Earth's atmosphere, like all planetary atmospheres, is constantly ionized by cosmic rays. Close to the surface, natural radioactivity is the dominant source of ionization. This article describes the generation and physical characteristics of atmospheric cluster-ions, including their size, composition, transport, and electrical properties, and gives an ...
Karen L. Aplin, R. Giles Harrison
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Ions in the atmosphere

, 2014
In Earth’s atmosphere, an ion is a cluster of molecules carrying an overall charge, known as a molecular cluster ion. Such cluster ions, with dimensions of approximately one nanometre, have usually been referred to as small ions, and their motion in air ...
Harrison, Giles
core   +7 more sources

Measurement report: Molecular-level investigation of atmospheric cluster ions at the tropical high-altitude research station Chacaltaya (5240 m a.s.l.) in the Bolivian Andes [PDF]

, 2023
Air ions are the key components for a series of atmospheric physicochemical interactions, such as ion-catalyzed reactions, ion-molecule reactions, and ion-induced new particle formation (NPF).
F. Bianchi, Zha, Qiaozhi, Petäjä, Tuukka, Mohr, Claudia,, Worsnop, Douglas, W. Huang, Koenig, Alkuin Maximilian, D. Aliaga, M. Kulmala, A. M. Koenig, R. Krejci, Sinclair, Victoria, V. Sinclair, Y. Gramlich, Mohr, Claudia, Gramlich, Yvette, Cai, Jing, D. Worsnop, Heikkinen, Liine,, Enroth, Joonas, Peräkylä, Otso, Q. Zha, O. Peräkylä, M. Andrade, Gramlich, Yvette,, Heikkinen, Liine, C. Mohr, Hansel, Armin, S. Carbone, L. Heikkinen, J. Enroth, J. Cai, Carbone, Samara, Andrade, Marcos, C. Wu, Bianchi, Federico, Huang, Wei, Aliaga, Diego, T. Petäjä, Kulmala, Markku, Krejci, Radovan, A. Hansel, Krejci, Radovan,, Wu, Cheng, Worsnop, D., Krejci, R., Perakyla, O., Carbone, S., Koenig, A. M., Andrade, M., Sinclair, V., Gramlich, Y., Petaja, T., Bianchi, F., Aliaga, D., Zha, Q. Z., Enroth, J., Cai, J., Huang, W., Kulmala, M., Hansel, A., Mohr, C., Wu, Cheng,, Heikkinen, L.   +63 more
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Measurement of the collision rate coefficients between atmospheric ions and multiply charged aerosol particles in the CERN CLOUD chamber [PDF]

, 2023
Aerosol particles have an important role in Earth's radiation balance and climate, both directly and indirectly through aerosol–cloud interactions. Most aerosol particles in the atmosphere are weakly charged, affecting both their collision rates with ...
S. Mirme, A. Kürten, H. Lamkaddam, N. S. Umo, B. Lopez, M. Wang, B. Rörup, M. Kulmala, R. C. Flagan, S. Mathot, X.-C. He, H. E. Manninen, M. Philippov, I. El Haddad, K. Lehtipalo, Z. Brasseur, M. Schervish, D. Stolzenburg, P. Tian, S. K. Weber, B. Mentler, M. Zauner-Wieczorek, R. Baalbaki, L. Caudillo, A. A. Piedehierro, B. C. Schulze, L. Dada, J. Curtius, T. Müller, J. Pfeifer, A. Onnela, D. S. Wang, Y. Wu, A. Tomé, J. Kirkby, R. Marten, T. Petäjä, A. Amorim, M. Granzin, V. Makhmutov, N. G. A. Mahfouz, A. Welti, N. M. Donahue, Baalbaki, Rima (author), Curtius, Joachim, Wang, Dongyu S, Weber, Stefan K., Dada, Lubna, Petäjä, Tuukka (author), Wu, Yusheng, Dada, Lubna (author), Onnela, Antti, Mirme, Sander, Makhmutov, Vladimir (author), Zauner-Wieczorek, Marcel (author), Schulze, Benjamin C. (author), Wang, Mingyi, Donahue, Neil M, Umo, Nsikanabasi S., Baalbaki, Rima, Zauner-Wieczorek, Marcel, Lopez, Brandon (author), Manninen, Hanna E., Donahue, Neil M., He, Xu-Cheng (author), Kulmala, Markku, Flagan, Richard C. (author), Mathot, Serge (author), Petäjä, Tuukka, Pfeifer, Joschka (author), Marten, Ruby (author), Philippov, Maxim, Welti, André (author), Curtius, Joachim (author), Wang, Mingyi (author), Schervish, Meredith, Flagan, Richard C., Tomé, António, Tian, Ping, Onnela, Antti (author), El Haddad, Imad (author), Pfeifer, Joschka, Lamkaddam, Houssni (author), Kürten, Andreas, Manninen, Hanna E, Caudillo, Lucia (author), He, Xu-Cheng, Umo, Nsikanabasi S, Rörup, Birte, Mahfouz, Naser G A, Brasseur, Zoé (author), Kulmala, Markku (author), Brasseur, Zoé, Piedehierro, Ana A, Wang, Dongyu S. (author), Amorim, Antonio (author), Kirkby, Jasper (author), Wang, Dongyu S., Lehtipalo, Katrianne, Stolzenburg, Dominik, Amorim, Antonio, Stolzenburg, Dominik (author), Mentler, Bernhard, Piedehierro, Ana A., Mathot, Serge, Caudillo, Lucia, Kürten, Andreas (author), Mentler, Bernhard (author), Schervish, Meredith (author), Welti, André, Lopez, Brandon, Weber, Stefan K, Lehtipalo, Katrianne (author), Tomé, António (author), Rörup, Birte (author), Müller, Tatjana, Piedehierro, Ana A. (author), Flagan, Richard C, Kirkby, Jasper, Haddad, Imad El, Mirme, Sander (author), Lamkaddam, Houssni, Marten, Ruby, Umo, Nsikanabasi S. (author), Granzin, Manuel (author), Schulze, Benjamin C, Tian, Ping (author), Weber, Stefan K. (author), Mahfouz, Naser G. A., Schulze, Benjamin C., Makhmutov, Vladimir, Mahfouz, Naser G.A. (author), Philippov, Maxim (author), Müller, Tatjana (author), Granzin, Manuel, Wu, Yusheng (author), Donahue, Neil M. (author), Manninen, Hanna E. (author)   +137 more
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Atmospheric Charge Separation Mechanism Due to Gas Release from the Crust before an Earthquake

Applied Sciences, 2023
In fair weather, the vertical atmospheric electric field is oriented downward (positive in the earth surface ordinate system) in the global atmospheric circuit.
Wen Li, Zhibin Sun, Tao Chen, Zhaoai Yan, Zhongsong Ma, Chunlin Cai, Zhaohai He, Jing Luo, Shihan Wang   +8 more
doaj   +1 more source

Applicability of condensation particle counters to measure atmospheric clusters [PDF]

, 2008
This study presents an evaluation of a pulse height condensation particle counter (PH-CPC) and an expansion condensation particle counter (E-CPC) in terms of measuring ambient and laboratory-generated molecular and ion clusters. Ambient molecular cluster
O'Dowd, Colin D., Curtius, Joachim, A. Kürten, Petäjä, Tuukka, Petäjä, T., Vartiainen, E., Manninen, Hanna Elina, Riipinen, Ilona, I. Riipinen, Junninen, H., E. Asmi, M. Kulmala, Kürten, A., Riipinen, I., Manninen, H. E., H. E. Manninen, S. Borrmann, Vartianinen, E., Sipilä, Mikko, K. Lehtipalo, Kürten, Christoph Andreas, M. Sipilä, Lehtipalo, Katrianne, Aalto, Pasi, E.-M. Kyrö, Kyrö, Ella-Maria, Asmi, E., Kyrö, E.-M., Borrmann, Stephan, Curtius, J., Sipilä, M., Kulmala, M., H. Junninen, J. Curtius, Aalto, P. P., Borrmann, S., Junninen, Heikki, O'Dowd, C. D., Asmi, Eija, P. P. Aalto, C. D. O'Dowd, Lehtipalo, K., T. Petäjä, Kulmala, Markku   +43 more
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Measurement report: Increasing trend of atmospheric ion concentrations in the boreal forest [PDF]

Atmospheric Chemistry and Physics, 2022
The concentration of atmospheric ions affects the total aerosol particle number concentrations in the atmosphere as well as atmospheric new particle formation via ion-induced nucleation, ion–ion recombination, and effects on condensational growth.
J. Sulo, J. Lampilahti, X. Chen, J. Kontkanen, J. Kontkanen, T. Nieminen, T. Nieminen, V.-M. Kerminen, T. Petäjä, M. Kulmala, M. Kulmala, K. Lehtipalo, K. Lehtipalo   +12 more
doaj   +1 more source

Atmospheric ions and comfort [PDF]

Journal of Hygiene, 1962
1. Fifteen apparently healthy persons were exposed to air enriched with positive or negative ions at 78° F. and 87° F. Average ion counts at 78° F. were 12,324 positive ions per ml. and 5,451 negative ions per ml. The averages at 87° F. were 14,865 positive ions per ml. and 5,442 negative ions per ml.
openaire   +2 more sources