CV Janne Hakkarainen

Title Senior Research Scientist


Postal address P.O.Box 503, FI-00101 Helsinki

Street address Erik Palménin aukio 1, Helsinki

Phone number +358 45 124 0257

Fields of expertise

  • Greenhouse gases
  • Data assimilation methods and applications

University and other degrees

  • Doctor of Philosophy (in Applied Mathematics), Lappeenranta University of Technology, 2013
  • Master of Science (in Applied Mathematics), University of Helsinki, 2010
  • Bachelor of Science (in Mathematics), University of Helsinki, 2010


List of publications


Journal publications

[22] Levelt, P. F., Joiner, J., Tamminen, J., Veefkind, J. P., Bhartia, P. K., Stein Zweers, D. C., Duncan, B. N., Streets, D. G., Eskes, H., van der A, R., McLinden, C., Fioletov, V., Carn, S., de Laat, J., DeLand, M., Marchenko, S., McPeters, R., Ziemke, J., Fu, D., Liu, X., Pickering, K., Apituley, A., González Abad, G., Arola, A., Boersma, F., Chan Miller, C., Chance, K., de Graaf, M., Hakkarainen, J., Hassinen, S., Ialongo, I., Kleipool, Q., Krotkov, N., Li, C., Lamsal, L., Newman, P., Nowlan, C., Suleiman, R., Tilstra, L. G., Torres, O., Wang, H., and Wargan, K.: The Ozone Monitoring Instrument: overview of 14 years in space, Atmos. Chem. Phys., 18, 5699-5745, doi:10.5194/acp-18-5699-2018, 2018. Link


[21] A. Eldering, P. O. Wennberg, D. Crisp, D. S. Schimel, M. R. Gunson, A. Chatterjee, J. Liu, F. M. Schwandner, Y. Sun, C. W. O'Dell, C. Frankenberg, T. Taylor, B. Fisher, G. B. Osterman, D. Wunch2, J. Hakkarainen, J. Tamminen, B. Weir: The Orbiting Carbon Observatory-2 early science investigations of regional carbon dioxide fluxes, Science, Vol. 358, Issue 6360, doi:10.1126/science.aam5745, 2017. Link


[20] Tsuruta, A., Aalto, T., Backman, L., Hakkarainen, J., van der Laan-Luijkx, I. T., Krol, M. C., Spahni, R., Houweling, S., Laine, M., Dlugokencky, E., Gomez-Pelaez, A. J., van der Schoot, M., Langenfelds, R., Ellul, R., Arduini, J., Apadula, F., Gerbig, C., Feist, D. G., Kivi, R., Yoshida, Y., and Peters, W.: Global methane emission estimates for 2000–2012 from CarbonTracker Europe-CH4 v1.0, Geosci. Model Dev., 10, 1261-1289, doi:10.5194/gmd-10-1261-2017, 2017. Link


[19] Sofieva, V. F., Ialongo, I., Hakkarainen, J., Kyrölä, E., Tamminen, J., Laine, M., Hubert, D., Hauchecorne, A., Dalaudier, F., Bertaux, J.-L., Fussen, D., Blanot, L., Barrot, G., and Dehn, A.: Improved GOMOS/Envisat ozone retrievals in the upper troposphere and the lower stratosphere, Atmos. Meas. Tech., 10, 231-246, doi:10.5194/amt-10-231-2017, 2017. Link


[18] Mudassar Abbas, Alexander Ilin, Antti Solonen, Janne Hakkarainen, Erkki Oja and Heikki Järvinen (2016), Empirical evaluation of Bayesian optimization in parametric tuning of chaotic systems, Int. J. Uncertainty Quantification, Volume 6, Issue 6, pages 467-485, doi:Int.J.UncertaintyQuantification.2016016645. Link


[17] Hakkarainen, J., I. Ialongo, and J. Tamminen (2016), Direct space-based observations of anthropogenic CO2 emission areas from OCO-2, Geophys. Res. Lett., 43, doi:10.1002/2016GL070885. Link



[16] Tukiainen, S., J. Railo, M. Laine, J. Hakkarainen, R. Kivi, P. Heikkinen, H. Chen, and J. Tamminen (2016), Retrieval of atmospheric CH4 profiles from Fourier transform infrared data using dimension reduction and MCMC, J. Geophys. Res. Atmos., 121, doi:10.1002/2015JD024657. Link


[15] G. Bernhard, I. Ialongo, J.-U. Grooß, J. Hakkarainen, B. Johnsen, G.L. Manney, V. Fioletov, A. Heikkilä, and K. Lakkala, 2016: Ozone and UV radiation [in "State of the Climate in 2015"]. Bull. Amer. Meteor. Soc., 97 (8), S152–S153. Link


[14] Antti Solonen, Tiangang Cui, Janne Hakkarainen, and Youssef Marzouk: On dimension reduction in Gaussian filters, Inverse Problems, Volume 32, Number 4, 2016. LinkarXiv:1508.06452


[13] Ialongo, I., Hakkarainen, J., Kivi, R., Anttila, P., Krotkov, N. A., Yang, K., Li, C., Tukiainen, S., Hassinen, S., and Tamminen, J.: Comparison of operational satellite SO2 products with ground-based observations in northern Finland during the Icelandic Holuhraun fissure eruption, Atmos. Meas. Tech., 8, 2279-2289, doi:10.5194/amt-8-2279-2015, 2015. Link


[12] Heikki Haario, Leonid Kalachev, and Janne Hakkarainen: Generalized correlation integral vectors: A distance concept for chaotic dynamical systems, Chaos 25, 063102 (2015), doi: 10.1063/1.4921939. Link


[11] Soares, J., Sofiev, M., Hakkarainen, J., Uncertainties of wild-land fires emission in AQMEII phase 2 case study, Atmospheric Environment (2015), doi: 10.1016/ j.atmosenv.2015.01.068. Link



[10] Solonen, A., Hakkarainen, J., Ilin, A., Abbas, M., and Bibov, A.: Tuning the model error covariance matrix in extended Kalman filtering, Nonlin. Processes Geophys., 21, 919-927, doi:10.5194/npg-21-919-2014, 2014. Link


[9] Ialongo, I., Hakkarainen, J., Hyttinen, N., Jalkanen, J.-P., Johansson, L., Boersma, K. F., Krotkov, N., and Tamminen, J.: Characterization of OMI tropospheric NO2 over the Baltic Sea region, Atmos. Chem. Phys., 14, 7795-7805, doi:10.5194/acp-14-7795-2014, 2014. Link


[8] Sofiev, M., Vankevich, R., Ermakova, T., and Hakkarainen, J.: Global mapping of maximum emission heights and resulting vertical profiles of wildfire emissions, Atmos. Chem. Phys., 13, 7039-7052, doi:10.5194/acp-13-7039-2013, 2013. Link


[7] Janne Hakkarainen, Antti Solonen, Alexander Ilin, Jouni Susiluoto, Marko Laine, Heikki Haario, and Heikki Järvinen.:A dilemma of the uniqueness of weather and climate model closure parameters, Tellus A, 65(20147):8, 2013. doi: 10.3402/tellusa.v65i0.20147. Link


[6] Hakkarainen, J., Tamminen, J., Moore, J. R., and Kyrölä, E.: Direct comparisons of GOMOS and SAGE III NO3 vertical profiles, Atmos. Meas. Tech., 5, 1841-1846, doi:10.5194/amt-5-1841-2012, 2012. Link


[5] Antti Solonen, Heikki Haario, Janne Hakkarainen, Harri Auvinen, Idrissa Amour, and Tuomo Kauranne: Variational Ensemble Kalman Filtering Using Limited Memory BFGS, Electron. Trans. Numer. Anal., 39 (2012), pp. 271–285. Link


[4] Hakkarainen, J., Ilin, A., Solonen, A., Laine, M., Haario, H., Tamminen, J., Oja, E., and Järvinen, H.: On closure parameter estimation in chaotic systems, Nonlin. Processes Geophys., 19, 127-143, doi:10.5194/npg-19-127-2012, 2012. Link


[3] T. Mielonen, H. Portin, M. Komppula, A. Leskinen, J. Tamminen, I. Ialongo, J. Hakkarainen, K.E.J. Lehtinen, A. Arola, Biomass burning aerosols observed in Eastern Finland during the Russian wildfires in summer 2010 -- Part 2: Remote sensing, Atmospheric Environment, Volume 47, February 2012, Pages 279-287, ISSN 1352-2310, 10.1016/j.atmosenv.2011.07.016. Link


[2] Kerminen, V.-M., Niemi, J. V., Timonen, H., Aurela, M., Frey, A., Carbone, S., Saarikoski, S., Teinilä, K., Hakkarainen, J., Tamminen, J., Vira, J., Prank, M., Sofiev, M., and Hillamo, R.: Characterization of a volcanic ash episode in southern Finland caused by the Grimsvötn eruption in Iceland in May 2011, Atmos. Chem. Phys., 11, 12227-12239, doi:10.5194/acp-11-12227-2011, 2011. Link


[1] Kroon, M., J. F. de Haan, J. P. Veefkind, L. Froidevaux, R. Wang, R. Kivi, and J. J. Hakkarainen (2011), Validation of operational ozone profiles from the Ozone Monitoring Instrument, J. Geophys. Res., 116, D18305, doi:10.1029/2010JD015100. Link

Proceeding publications

[7] Heikki Haario, Janne Hakkarainen, Ramona Maraia, and Sebastian Springer: Correlation integral likelihood for stochastic differential equations. The 2017 MATRIX Annals, the second book in the MATRIX Book Series, 2018. Link


[6] V.F. Sofieva, J. Tamminen, J. Hakkarainen, E. Kyrölä, M. Sofiev, G. Stiller, A. Laeng, T. von Clarmann, S. Lossow, M. Weber, N. Rahpoe, A. Rozanov, D. Degenstein, A. Bourassa, K. A. Walker, D. Hubert, M. van Roozendael, and C. Zehner: Ozone structure and variability in the upper troposphere and lower stratosphere as seen by Envisat and ESA Third-party mission limb profiling instruments, Proceedings of Advances in Atmospheric Science and Applications, ESA SP-735, 2015.


[5] Janne Hakkarainen, Iolanda Ialongo, Viktoria Sofieva, Marko Laine, Johanna Tamminen, and Erkki Kyrölä: Validation and Alternative Retrievals of GOMOS Ozone Profiles in the UTLS Altitude Region, Proceedings of Advances in Atmospheric Science and Applications, ESA SP-735, 2015. Link


[4] Julius Vira, Marje Prank, Janne Hakkarainen, and Mikhail Sofiev: An Assessment of the Emission and Dispersion of Volcanic Ash and Sulphur Dioxide in the Recent Eruptions in Iceland, Air Pollution Modeling and its Application XXII, Springer Netherlands, pp. 297-301, doi:10.1007/978-94-007-5577-2_50, 2014. Link


[3] Janne Hakkarainen, Marko Laine, and Johanna Tamminen: GOMOS one-step retrieval algorithm, Remote Sensing of Clouds and the Atmosphere XVIII, Proceedings of SPIE Volume 8890, 2013, doi:10.1117/12.2027109. Link


[2] Joana Soares, Janne Hakkarainen, Tatjana Ermakova, and Mikhail Sofiev: On a Contribution of Wild-Land Fires on Atmospheric Composition in Arid Regions, Air Pollution Modeling and its Application XXI, Springer Netherlands, pp. 385-389, doi:10.1007/978-94-007-1359-8_65, 2012. Link


[1] Finardi S., Mircea M., Righini G., Sofiev M., Hakkarainen J., Kukkonen J., Forecasting and assessment of wildland fires air quality impact in Italy, Proceedings of 8th Int. Conference on Air Quality - Science and Application, Athens, 19-23 March 2012. Link