Search Results - "Paatero, J."

Meteorological conditions in the central Arctic summer during the Arctic Summer Cloud Ocean Study (ASCOS) by Tjernström, M, Birch, C. E, Brooks, I. M, Shupe, M. D, Persson, P. O. G, Sedlar, J, Mauritsen, T, Leck, C, Paatero, J, Szczodrak, M, Wheeler, C. R

“…Understanding the rapidly changing climate in the Arctic is limited by a lack of understanding of underlying strong feedback mechanisms that are specific to…”
Get full text

Aerosol composition and sources in the central Arctic Ocean during ASCOS by Chang, R. Y.-W., Leck, C., Graus, M., Müller, M., Paatero, J., Burkhart, J. F., Stohl, A., Orr, L. H., Hayden, K., Li, S.-M., Hansel, A., Tjernström, M., Leaitch, W. R., Abbatt, J. P. D.

“…Measurements of submicron aerosol chemical composition were made over the central Arctic Ocean from 5 August to 8 September 2008 as a part of the Arctic Summer…”
Get full text

Single-particle characterization of the high-Arctic summertime aerosol by Sierau, B, Chang, R. Y.-W, Leck, C, Paatero, J, Lohmann, U

“…Single-particle mass-spectrometric measurements were carried out in the high Arctic north of 80° during summer 2008. The campaign took place onboard the…”
Get full text

Changes in aerosol properties during spring-summer period in the Arctic troposphere by Engvall, A.-C., Krejci, R., Ström, J., Treffeisen, R., Scheele, R., Hermansen, O., Paatero, J.

“…The change in aerosol properties during the transition from the more polluted spring to the clean summer in the Arctic troposphere was studied. A six-year data…”
Get full text

Ion production rate in a boreal forest based on ion, particle and radiation measurements by Laakso, L., Petäjä, T., Lehtinen, K. E. J., Kulmala, M., Paatero, J., Hõrrak, U., Tammet, H., Joutsensaari, J.

“…In this study the ion production rates in a boreal forest were studied based on two different methods: 1) cluster ion and particle concentration measurements,…”
Get full text

Kinetic nucleation and ions in boreal forest particle formation events by Laakso, L., Anttila, T., Lehtinen, K. E. J., Aalto, P. P., Kulmala, M., Hõrrak, U., Paatero, J., Hanke, M., Arnold, F.

“…In order to gain a more comprehensive picture on different mechanisms behind atmospheric particle formation, measurement results from QUEST 2-campaign are…”
Get full text

Chemical composition of boundary layer aerosol over the Atlantic Ocean and at an Antarctic site by Virkkula, A., Teinilä, K., Hillamo, R., Kerminen, V.-M., Saarikoski, S., Aurela, M., Viidanoja, J., Paatero, J., Koponen, I. K., Kulmala, M.

“…Aerosol chemical composition was measured over the Atlantic Ocean in November–December 1999 and at the Finnish Antarctic research station Aboa in January 2000…”
Get full text

240Pu/239Pu mass ratio in environmental samples in Finland by Salminen-Paatero, S., Nygren, U., Paatero, J.

“…The 240Pu/239Pu mass ratio was determined with SF-ICP-MS in lichen, peat, grass, air filter, and hot particle samples obtained in Finland. The main part of the…”
Get full text

A simple model to estimate deposition based on a statistical reassessment of global fallout data by Pálsson, S.E., Howard, B.J., Bergan, T.D., Paatero, J., Isaksson, M., Nielsen, S.P.

“…Atmospheric testing of nuclear weapons began in 1945 and largely ceased in 1963. Monitoring of the resulting global fallout was carried out globally by the…”
Get full text

Observations of new particle formation and size distributions at two different heights and surroundings in subarctic area in northern Finland by Komppula, M., Lihavainen, H., Hatakka, J., Paatero, J., Aalto, P., Kulmala, M., Viisanen, Y.

“…Two years of continuous aerosol particle number size distribution measurements have been carried out in a subarctic area in northern Finland. Measurements have…”
Get full text

Heavy metals in bottom sediments of Lake Umbozero in Murmansk Region, Russia by Jernström, J, Lehto, J, Dauvalter, V. A, Hatakka, A, Leskinen, A, Paatero, J

“…Sediment cores collected from different locations of Lake Umbozero were studied with respect to concentration and mobility of trace and heavy metals Co, Cu,…”
Get full text

Cosmogenic 7Be and 22Na in Finland: Production, observed periodicities and the connection to climatic phenomena by Leppänen, A.-P., Usoskin, I.G., Kovaltsov, G.A., Paatero, J.

“…This study presents theoretical production calculations and time series analyses of two cosmogenic isotopes, 7Be and 22Na, from the four high-latitude stations…”
Get full text

In-situ observations of Eyjafjallajökull ash particles by hot-air balloon by Petäjä, T., Laakso, L., Grönholm, T., Launiainen, S., Evele-Peltoniemi, I., Virkkula, A., Leskinen, A., Backman, J., Manninen, H.E., Sipilä, M., Haapanala, S., Hämeri, K., Vanhala, E., Tuomi, T., Paatero, J., Aurela, M., Hakola, H., Makkonen, U., Hellén, H., Hillamo, R., Vira, J., Prank, M., Sofiev, M., Siitari-Kauppi, M., Laaksonen, A., lehtinen, K.E.J., Kulmala, M., Viisanen, Y., Kerminen, V.-M.

“…The volcanic ash cloud from Eyjafjallajökull volcanic eruption seriously distracted aviation in Europe. Due to the flight ban, there were only few in-situ…”
Get full text

Np in peat and lichen in Finland by Salminen, S, Paatero, J, Roos, P, Helariutta, K

“…Activity concentrations of Np in peat and lichen samples in Finland were determined and contributions from nuclear weapons testing in 1950--1960s and the…”
Get full text

Wet Deposition of Radon-222 Progeny in Northern Finland Measured with an Automatic Precipitation Gamma Analyser by PAATERO, J

“…An automatic wet deposition gamma analyser has been constructed. Precipitation is collected with a 1 m2 funnel and its 214Pb and 214Bi contents measured in a…”
Get full text

Plutonium in the air in Kurchatov, Kazakhstan by Lehto, J., Salminen, S., Jaakkola, T., Outola, I., Pulli, S., Paatero, J., Tarvainen, M., Ristonmaa, S., Zilliacus, R., Ossintsev, A., Larin, V.

“…Weekly air samples of 25 000 m 3 volume were taken with two air samplers over a period of one year in 2000–2001 in the town of Kurchatov in Kazakhstan. For…”
Get full text

Measurements and modeling of airborne plutonium in Subarctic Finland between 1965 and 2011 by Salminen-Paatero, Susanna, Vira, Julius, Paatero, Jussi

“…The activity concentrations of 238,239,240Pu and 241Am (for determining its mother nuclide, 241Pu) as well as activity ratios of 238Pu/239+240Pu,…”
Get full text

Regional distribution of Chernobyl-derived plutonium deposition in Finland by Paatero, J, Jaakkola, T, Ikaheimonen, T K

“…The Chernobyl nuclear power plant accident in April 1986 caused a widely spread plume of radionuclides containing, amongst other materials, plutonium isotopes…”
Get full text

Observation and modeling of high-7Be concentration events at the surface in northern Europe associated with the instability of the Arctic polar vortex in early 2003 by Brattich, Erika, Liu, Hongyu, Zhang, Bo, Hernández-Ceballos, Miguel Ángel, Paatero, Jussi, Sarvan, Darko, Djurdjevic, Vladimir, Tositti, Laura, Ajtić, Jelena

“…Events of very high concentrations of 7Be cosmogenic radionuclide have been recorded at low-elevation surface stations in the subpolar regions of Europe during…”
Get full text

A global dataset of atmospheric 7Be and 210Pb measurements: annual air concentration and depositional flux by Zhang, Fule, Wang, Jinlong, Baskaran, Mark, Zhong, Qiangqiang, Wang, Yali, Paatero, Jussi, Du, Jinzhou

“…7Be and 210Pb air concentration and depositional flux data provide key information on the origins and movements of air masses, as well as atmospheric…”
Get full text