Search Results - "Mielonen, T."

Effect of Long‐Range Transported Fire Aerosols on Cloud Condensation Nuclei Concentrations and Cloud Properties at High Latitudes by Kommula, S. M., Buchholz, A., Gramlich, Y., Mielonen, T., Hao, L., Pullinen, I., Vettikkat, L., Ylisirniö, A., Joutsensaari, J., Schobesberger, S., Tiitta, P., Leskinen, A., Rees, D. Hesslin‐, Haslett, S. L., Siegel, K., Lunder, C., Zieger, P., Krejci, R., Romakkaniemi, S., Mohr, C., Virtanen, A.

“…Active vegetation fires in south‐eastern (SE) Europe resulted in a notable increase in the number concentration of aerosols and cloud condensation nuclei (CCN)…”
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Comparison of CALIOP level 2 aerosol subtypes to aerosol types derived from AERONET inversion data by Mielonen, T., Arola, A., Komppula, M., Kukkonen, J., Koskinen, J., de Leeuw, G., Lehtinen, K. E. J.

“…Identification of aerosol types is important, because different aerosol types have different effects on health, visibility and climate change. The space‐borne…”
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The role of semi-volatile organic compounds in the mesoscale evolution of biomass burning aerosol: a modeling case study of the 2010 mega-fire event in Russia by Konovalov, I B, Beekmann, M, Berezin, E V, Petetin, H, Mielonen, T, Kuznetsova, I N, Andreae, M O

“…Chemistry transport models (CTMs) are an indispensable tool for studying and predicting atmospheric and climate effects associated with carbonaceous aerosol…”
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Atmospheric boundary layer top height in South Africa: measurements with lidar and radiosonde compared to three atmospheric models by Korhonen, K, Giannakaki, E, Mielonen, T, Pfüller, A, Laakso, L, Vakkari, V, Baars, H, Engelmann, R, Beukes, J. P, Van Zyl, P. G, Ramandh, A, Ntsangwane, L, Josipovic, M, Tiitta, P, Fourie, G, Ngwana, I, Chiloane, K, Komppula, M

“…Atmospheric lidar measurements were carried out at Elandsfontein measurement station, on the eastern Highveld approximately 150 km east of Johannesburg in…”
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Direct radiative effect by brown carbon over the Indo-Gangetic Plain by Arola, A, Schuster, G. L, Pitkänen, M. R. A, Dubovik, O, Kokkola, H, Lindfors, A. V, Mielonen, T, Raatikainen, T, Romakkaniemi, S, Tripathi, S. N, Lihavainen, H

“…The importance of light-absorbing organic aerosols, often called brown carbon (BrC), has become evident in recent years. However, there have been relatively…”
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Geographical and diurnal features of amine-enhanced boundary layer nucleation by Bergman, T., Laaksonen, A., Korhonen, H., Malila, J., Dunne, E. M., Mielonen, T., Lehtinen, K. E. J., Kühn, T., Arola, A., Kokkola, H.

“…Amines have recently been found to be an important ingredient in the nucleation and initial growth of atmospheric aerosols; however, global estimates of the…”
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Technical Note: One year of Raman-lidar measurements in Gual Pahari EUCAARI site close to New Delhi in India – Seasonal characteristics of the aerosol vertical structure by Komppula, M, Mielonen, T, Arola, A, Korhonen, K, Lihavainen, H, Hyvärinen, A.-P, Baars, H, Engelmann, R, Althausen, D, Ansmann, A, Müller, D, Panwar, T. S, Hooda, R. K, Sharma, V. P, Kerminen, V.-M, Lehtinen, K. E. J, Viisanen, Y

“…One year of multi-wavelength (3 backscatter + 2 extinction + 1 depolarization) Raman lidar measurements at Gual Pahari, close to New Delhi, were analysed. The…”
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A novel tropopause-related climatology of ozone profiles by Sofieva, V. F, Tamminen, J, Kyrölä, E, Mielonen, T, Veefkind, P, Hassler, B, Bodeker, G.E

“…A new ozone climatology, based on ozonesonde and satellite measurements, spanning the altitude region between the earth's surface and ~60 km is presented (TpO3…”
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Biomass burning aerosols observed in Eastern Finland during the Russian wildfires in summer 2010 – Part 2: Remote sensing by Mielonen, T., Portin, H., Komppula, M., Leskinen, A., Tamminen, J., Ialongo, I., Hakkarainen, J., Lehtinen, K.E.J., Arola, A.

“…In the summer 2010 extensive wildfires in the western parts of Russia emitted massive amounts of smoke and aerosols into the atmosphere. These smoke plumes…”
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One year of Raman lidar observations of free-tropospheric aerosol layers over South Africa by Giannakaki, E, Pfüller, A, Korhonen, K, Mielonen, T, Laakso, L, Vakkari, V, Baars, H, Engelmann, R, Beukes, J. P, Van Zyl, P. G, Josipovic, M, Tiitta, P, Chiloane, K, Piketh, S, Lihavainen, H, Lehtinen, K. E. J, Komppula, M

“…Raman lidar data obtained over a 1 year period has been analysed in relation to aerosol layers in the free troposphere over the Highveld in South Africa. In…”
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Aerosol Effect on the Cloud Phase of Low‐Level Clouds Over the Arctic by Filioglou, M., Mielonen, T., Balis, D., Giannakaki, E., Arola, A., Kokkola, H., Komppula, M., Romakkaniemi, S.

“…Three years of nighttime Cloud‐Aerosol Lidar and Infrared Pathfinder Satellite Observation data was used in synergy with CloudSat measurements to quantify how…”
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Effect of the summer monsoon on aerosols at two measurement stations in Northern India – Part 2: Physical and optical properties by Hyvärinen, A.-P., Raatikainen, T., Komppula, M., Mielonen, T., Sundström, A.-M., Brus, D., Panwar, T. S., Hooda, R. K., Sharma, V. P., de Leeuw, G., Lihavainen, H.

“…Aerosol physical and optical properties were measured at two locations in northern India. The first measurement station was a background site in Mukteshwar,…”
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Evaluation of the sectional aerosol microphysics module SALSA implementation in ECHAM5-HAM aerosol-climate model by Bergman, T, Kerminen, V.-M, Korhonen, H, Lehtinen, K. J, Makkonen, R, Arola, A, Mielonen, T, Romakkaniemi, S, Kulmala, M, Kokkola, H

“…We present the implementation and evaluation of a sectional aerosol microphysics module SALSA within the aerosol-climate model ECHAM5-HAM. This aerosol…”
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Effect of water vapor on the determination of aerosol direct radiative effect based on the AERONET fluxes by Huttunen, J, Arola, A, Myhre, G, Lindfors, A. V, Mielonen, T, Mikkonen, S, Schafer, J. S, Tripathi, S. N, Wild, M, Komppula, M, Lehtinen, K. E. J

“…The aerosol direct radiative effect (ADRE) is defined as the change in the solar radiation flux, F, due to aerosol scattering and absorption. The difficulty in…”
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Biomass burning aerosols observed in Eastern Finland during the Russian wildfires in summer 2010 – Part 1: In-situ aerosol characterization by Portin, H., Mielonen, T., Leskinen, A., Arola, A., Pärjälä, E., Romakkaniemi, S., Laaksonen, A., Lehtinen, K.E.J., Komppula, M.

“…Biomass burning smoke and associated aerosol particles from wildfires near Moscow, Russia during summer 2010 had a significant impact on air quality both in…”
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Towards the retrieval of tropospheric ozone with the Ozone Monitoring Instrument (OMI) by Mielonen, T, de Haan, J. F, van Peet, J. C. A, Eremenko, M, Veefkind, J. P

“…We have assessed the sensitivity of the operational Ozone Monitoring Instrument (OMI) ozone profile retrieval algorithm to a number of a priori and radiative…”
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Evaluating the assumptions of surface reflectance and aerosol type selection within the MODIS aerosol retrieval over land: the problem of dust type selection by Mielonen, T., Levy, R. C., Aaltonen, V., Komppula, M., de Leeuw, G., Huttunen, J., Lihavainen, H., Kolmonen, P., Lehtinen, K. E. J., Arola, A.

“…Aerosol Optical Depth (AOD) and Ångström exponent (AE) values derived with the MODIS retrieval algorithm over land (Collection 5) are compared with ground…”
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Effect of aerosols on the infrared transmission in Lakiala, Finland by Mielonen, T., Kaurila, T., Arola, A., Lihavainen, H., Komppula, M., Lehtinen, K.E.J.

“…Effects of atmospheric aerosols on radiative transfer are mainly studied because of their role in climate change. Aerosols also affect some technological…”
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A review and framework for the evaluation of pixel-level uncertainty estimates in satellite aerosol remote sensing by Sayer, Andrew M, Govaerts, Yves, Kolmonen, Pekka, Lipponen, Antti, Luffarelli, Marta, Mielonen, Tero, Patadia, Falguni, Popp, Thomas, Povey, Adam C, Stebel, Kerstin, Witek, Marcin L

“…Recent years have seen the increasing inclusion of per-retrieval prognostic (predictive) uncertainty estimates within satellite aerosol optical depth (AOD)…”
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Monitoring biomass burning aerosol transport using CALIOP observations and reanalysis models: a Canadian wildfire event in 2019 by Shang, Xiaoxia, Lipponen, Antti, Filioglou, Maria, Sundström, Anu-Maija, Parrington, Mark, Buchard, Virginie, Darmenov, Anton S, Welton, Ellsworth J, Marinou, Eleni, Amiridis, Vassilis, Sicard, Michael, Rodríguez-Gómez, Alejandro, Komppula, Mika, Mielonen, Tero

“…In May–June 2019, smoke plumes from wildfires in Alberta, Canada, were advected all the way to Europe. To analyze the evolution of the plumes and to estimate…”
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