Coupling an aerosol box model with one-dimensional flow: a tool for understanding observations of new particle formation events

Autor: Niku Kivekäs, Jimmie Carpman, Pontus Roldin, Johannes Leppä, Ewan O’Connor, Adam Kristensson, Eija Asmi

Publikováno v: Tellus: Series B, Chemical and Physical Meteorology, Vol 68, Iss 0, Pp 1-14 (2016)

Field observations of new particle formation and the subsequent particle growth are typically only possible at a fixed measurement location, and hence do not follow the temporal evolution of an air parcel in a Lagrangian sense. Standard analysis for

Externí odkaz: https://doaj.org/article/575fbc9557074798aaa0524f0cda072e

Pan-Arctic trends of aerosol particle number concentrations in different size fractions

Autor: Jakob Boyd Pernov, Peter Tunved, Sangeeta Sharma, Eija Asmi, Niku Kivekäs, Julia Schmale, Johan Ström, Hans-Christen Hansson, Henrik Skov, Andreas Massling

IntroductionThe Arctic region is particularly sensitive to global climate change, experiencing warming at twice the rate of the global average. Changes within and outside of the Arctic (e.g., meteorology, atmospheric transport, and precipitation patt

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ddba95e6e932299dea32947be0cdc0ca
https://doi.org/10.5194/egusphere-egu22-6026

Supplementary material to 'Comparison of particle number size distribution trends in ground measurements and climate models'

Autor: Ville Leinonen, Harri Kokkola, Taina Yli-Juuti, Tero Mielonen, Thomas Kühn, Tuomo Nieminen, Simo Heikkinen, Tuuli Miinalainen, Tommi Bergman, Ken Carslaw, Stefano Decesari, Markus Fiebig, Tareq Hussein, Niku Kivekäs, Markku Kulmala, Ari Leskinen, Andreas Massling, Nikos Mihalopoulos, Jane P. Mulcahy, Steffen M. Noe, Twan van Noije, Fiona M. O'Connor, Colin O'Dowd, Dirk Olivie, Jakob B. Pernov, Tuukka Petäjä, Øyvind Seland, Michael Schulz, Catherine E. Scott, Henrik Skov, Erik Swietlicki, Thomas Tuch, Alfred Wiedensohler, Annele Virtanen, Santtu Mikkonen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cac254c24421dbf914161ce99b61d5fd
https://doi.org/10.5194/acp-2022-225-supplement

Concentrations and Adsorption Isotherms for Amphiphilic Surfactants in PM1 Aerosols from Different Regions of Europe

Autor: Niku Kivekäs, Ronald C. Cohen, Barbara Nozière, Corinne Ferronato, Ludovic Fine, Amanda A. Frossard, Eija Asmi, David Brus, Violaine Gérard, Sanja Frka, Dharmendra Kumar Singh, Ana Cvitešić Kušan, Minna Aurela, Heikki Lihavainen

Publikováno v: Environmental Science and Technology
Environmental Science and Technology, American Chemical Society, 2019, 53 (21), pp.12379-12388. ⟨10.1021/acs.est.9b03386⟩
Environmental Science & Technology

Predicting the activation of submicrometer particles into cloud droplets in the atmosphere remains a challenge. The importance of surface tension, σ (mN m−1), in these processes has been evidenced by several works, but information on the "surfacta

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::955d65a771b8122bc5b479e3d185564f
https://doi.org/10.1021/acs.est.9b03386

Driving Factors of Aerosol Properties Over the Foothills of Central Himalayas Based on 8.5 Years Continuous Measurements

Autor: Joni-Pekka Pietikäinen, Ewan O'Connor, M. Collaud Coen, Eija Asmi, Rakesh K. Hooda, John Backman, Heikki Lihavainen, Hannele Korhonen, Niku Kivekäs, Mika Komppula, Svante Henriksson, Ville Vakkari, Antti-Pekka Hyvärinen

Publikováno v: Journal of Geophysical Research: Atmospheres. 123

This study presents analysis of in situ measurements conducted over the period 2005–2014 in the Indian Himalayas to give a thorough overview of the factors and causes that drive aerosol properties. Aerosol extensive properties (namely, particle num

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ab6758f2d1d95e33a0169221f47ee542
https://doi.org/10.1029/2018jd029744