Publications

(based on observations at Utö) 31. Hellén, H., Kouznetsov, R., Kraft, K., Seppälä, J., Vestenius, M., Jalkanen, J.-P., Laakso, L., and Hakola, H.: Shipping and algae emissions have a major impact on ambient air mixing ratios of non-methane hydrocarbons (NMHCs) and methanethiol on Utö Island in the Baltic Sea, Atmos. Chem. Phys., 24, 4717–4731, https://doi.org/10.5194/acp-24-4717-2024, 2024. 30. Rautiainen, L., Tyynelä, J., Lensu, M., Siiriä, S., Vakkari, V., O’Connor, E., Hämäläinen, K., Lonka, H., Stenbäck, K., Koistinen, J. and Laakso, L., Utö Observatory for Analysing Atmospheric Ducting Events over Baltic Coastal and Marine Waters, Remote Sens., 15, https://doi.org/10.3390/rs15122989, 2023.

29. Kraft K, Velhonoja O, Eerola T, Suikkanen S, Tamminen T, Haraguchi L, Ylöstalo P, Kielosto S, Johansson M, Lensu L, Kälviäinen H, Haario H and Seppälä J, Towards operational phytoplankton recognition with automated high-throughput imaging, near-real-time data processing, and convolutional neural networks. Front. Mar. Sci. 9:867695. doi: 10.3389/fmars.2022.867695, 2022

28. Grönholm, T., Mäkelä, T., Hatakka, J., Jalkanen, J.-P., Kuula, J., Laurila, T., Laakso, L., Kukkonen, J.: Evaluation of Methane Emissions Originating from LNG Ships Based on the Measurements at a Remote Marine Station, https://doi.org/10.1021/acs.est.1c03293, Environmental Science & Technology, 2021.

27. Hallgren, C., Ivanell, S., Körnich, H., Vakkari, V., and Sahlée, E.: The smoother the better? A comparison of six post-processing methods to improve short-term offshore wind power forecasts in the Baltic Sea, Wind Energ. Sci., 6, 1205–1226, https://doi.org/10.5194/wes-6-1205-2021, 2021.

26. Honkanen, M., Müller, J. D., Seppälä, J., Rehder, G., Kielosto, S., Ylöstalo, P., Mäkelä, T., Hatakka, J., and Laakso, L.: The diurnal cycle of pCO2 in the coastal region of the Baltic Sea, Ocean Sci., 17, 1657-1675, https://doi.org/10.5194/os-17-1657-2021, 2021.

25. Kraft, K., Seppälä, J., Hällfors, H., Suikkanen, S., Ylöstalo, P., Anglès, S., Kielosto, S., Kuosa, H., Laakso, L., Honkanen, M., Lehtinen, S., Oja, J., Tamminen, T.: Application of IFCB High-Frequency Imaging-in-Flow Cytometry to Investigate Bloom-Forming Filamentous Cyanobacteria in the Baltic Sea, https://www.frontiersin.org/article/10.3389/fmars.2021.594144, Frontiers in Marine Science, 2021. 24. Seppälä, S.D., Kuula, J., Hyvärinen, A.-P., Saarikoski, S., Rönkkö, T., Keskinen, J., Jalkanen, J.-P. and Timonen, H., Effects of marine fuel sulfur restrictions on particle number concentrations and size distributions in ship plumes in the Baltic Sea, Atmos. Chem. Phys., 21, 3215–3234, https://doi.org/10.5194/acp-21-3215-2021, 2021

23. Hallgren C, Arnqvist J, Ivanell S, Körnich H, Vakkari V, Sahlée E. Looking for an Offshore Low-Level Jet Champion among Recent Reanalyses: A Tight Race over the Baltic Sea, Energies, 13(14):3670. https://doi.org/10.3390/en13143670, 2020

22. Hämäläinen, K., Saltikoff, E., Hyvärinen, O., Vakkari, V. and Niemelä, S.: Assessment of Probabilistic Wind Forecasts at 100 m Above Ground Level Using Doppler Lidar and Weather Radar Wind Profiles, Mon. Wea. Rev., 148(3), 1321–1334, doi:10.1175/MWR-D-19-0184.1, https://journals.ametsoc.org/view/journals/mwre/148/3/mwr-d-19-0184.1.xml, 2020. 21. Tuononen, M., O’Connor, E. J., Sinclair, v and Vakkari, V., Low-level jets over Utö, Finland, based on Doppler lidar observations. J. Appl. Meteor. Climatol., 56, 2577–2594, https://doi.org/10.1175/JAMC-D-16-0411., 2017

20. Honkanen, M., Tuovinen, J.-P., Laurila, T., Mäkelä, T., Hatakka, J., Kielosto, S., and Laakso, L.: Measuring turbulent CO2 fluxes with a closed-path gas analyzer in a marine environment, Atmos. Meas. Tech., 11, 5335-5350, https://doi.org/10.5194 amt-11-5335-2018, 2018

19. Laakso, L., Mikkonen, S., Drebs, A., Karjalainen, A., Pirinen, P., and Alenius, P.: 100 years of atmospheric and marine observations at the Finnish Utö Island in the Baltic Sea, Ocean Sci., 14, 617-632, https://doi.org/10.5194/os-14-617-2018, 2018.

18. Kecorius, S., Kivekäs, N., Kristensson, A., Tuch, T., Covert, D., Birmili, W., Lihavainen, H., Hyvärinen, A.-P., Martinsson, J., Sporre, M., Swietlicki, E., Wiedensohler, A. and Ulevicius, V.: Significant Increase of Aerosol Concentrations in Air Masses Crossing a Densely Trafficked Sea Area, Oceanologia, Vol 58:1, p.1-12,https://doi.org/10.1016/j.oceano.2015.08.001, 2016

17. Kilkki J., Aalto T., Hatakka J., Portin H. & Laurila T. 2015: Atmospheric CO2 observations at Finnish urban and rural sites. Boreal Env. Res. 20: 227–242, 2015.

16. Hyvärinen, A.-P., Kolmonen, P., Kerminen, V.-M., Virkkula, A., Leskinen, A., Komppula, M., Hatakka, J., Burkhart, J., Stohl, A., Aalto, P., Kulmala, M., Lehtinen, K.E.J., Viisanen, Y. and Lihavainen, H., Aerosol black carbon at five background measurement sites over Finland, a gateway to the Arctic, Atmospheric Environment, 45(24), 4042-4050, doi:10.1016/j.atmosenv.2011.04.026, 2011

15. Hongisto, M.,  Variability of the marine boundary layer parameters over Baltic Sea sub-basins and their impact on nitrogen deposition, Oceanologia, vol. 53 S1, p.391-413, 2011.

14. Ruoho-Airola T, Leppänen S. and Makkonen U., Changes in the concentration of reduced nitrogen in the air in Finland between 1990 and 2007. Boreal Env. Res. 15: 427–436, 2010

13. Kyllönen K., Karlsson V. and Ruoho-Airola T., Trace element deposition and trends during a ten year period in Finland, Science of Total Environment 407: 2260-2269, 2009

12. Hyvärinen A., Komppula M., Engler C., Kivekäs N., Kerminen V.-M., Dal Maso M., Viisanen Y. and Lihavainen H., Atmospheric new particle formation at Utö, Baltic Sea 2003–2005. Tellus 60B, 345-352, 2008

11. Komppula M., Vana M., Kerminen V.-M., Lihavainen H., Viisanen Y., Hõrrak U., Komsaare K., Tamm E., Hirsikko A., Laakso L. and Kulmala M., Size distributions of atmospheric ions in the Baltic Sea region. Boreal Env. Res. 12, 323-336, 2007

10. Engler C., Lihavainen H., Komppula M., Kerminen V.-M., Kulmala M. and Viisanen Y, Continuous measurements of aerosol properties at the Baltic Sea. Tellus 59B, 728-741, 2007 

9. Hakola, H., Hellén, H. and Laurila, T., Ten years of light hydrocarbons (C2–C6) concentration measurements in background air in Finland, Atmospheric Environment 40, 3621–3630, 2006. 

8. Jevrejeva, S., Drabkin, V. V., Kostjukov, J., Lebedev, A. A., Leppäranta, M., Mironov, Ye. U., Schmelzer, N. & Sztobryn M.. Baltic Sea ice seasons in the twentieth century. Climate Research vol. 25, 217–227, 2004

7. Ruoho-Airola, T., Anttila, P. and Salmi, T., Airborne sulphur and nitrogen in Finland — trends and exposure in relation to air transport sector. Journal of Environmental Monitoring 6: 1-11, 2004

6. Ruoho-Airola, T., Alaviippola, B., Salminen, K. and Varjoranta, R., An investigation of base cation deposition in Finland. Boreal Environment Research 8: 83-95, 2003

5. Ruoho-Airola, T. and Salmi, T., Episodicity of sulphate deposition in Finland. Water, Air, and Soil Pollution 130: 529-534, 2001

4. Haapala, J. and Leppäranta, M. The Baltic Sea ice season in changing climate. – Boreal Environment Research 2: 93-108, 1997

3. Laurila, T. and Hakola, H., Seasonal Cycle of C2–C5 hydrocarbons over the Baltic Sea and Northern Finland. Atmospheric Environment 30, 1597-1607, 1996

2. Haapala, J. & Alenius, P. Temperature and salinity statistics for the Northern Baltic Sea 1961-90. - Finnish Marine Research, 262: 51-121, 1994

1. Ahlnäs, K., Variation in salinity at Utö 1911-1961, Geophysica Vol. 8, No. 2, 1962