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

[37] Ialongo, I., Bun, R., Hakkarainen, J., Virta, H., and Oda, T. Satellites capture socioeconomic disruptions during the 2022 full-scale war in Ukraine. Sci Rep 13, 14954 (2023). doi:10.1038/s41598-023-42118-w. Link

[36] Teemu Härkönen, Anu-Maija Sundström, Johanna Tamminen, Janne Hakkarainen, Esa Vakkilainen and Heikki Haario: Uncertainty Quantification by Gaussian Random Fields for Point-Like Emissions from Satellite Observations, International Journal for Uncertainty Quantification, doi:10.1615/Int.J.UncertaintyQuantification.2023044906, 2023. Link

[35] Tsuruta A, Kivimäki E, Lindqvist H, Karppinen T, Backman L, Hakkarainen J, Schneising O, Buchwitz M, Lan X, Kivi R, Chen H, Buschmann M, Herkommer B, Notholt J, Roehl C, Té Y, Wunch D, Tamminen J, Aalto T. CH4 Fluxes Derived from Assimilation of TROPOMI XCH4 in CarbonTracker Europe-CH4: Evaluation of Seasonality and Spatial Distribution in the Northern High Latitudes. Remote Sensing, 15(6):1620, doi:10.3390/rs15061620, 2023. Link

[34] Janne Hakkarainen, Iolanda Ialongo, Tomohiro Oda, Monika E. Szeląg, Christopher W. O’Dell, Annmarie Eldering, and David Crisp: Building a bridge: Characterizing major anthropogenic point sources in the South African Highveld region using OCO-3 carbon dioxide Snapshot Area Maps and Sentinel-5P/TROPOMI nitrogen dioxide columns, Environmental Research Letters, vol. 18, no. 3, doi:10.1088/1748-9326/acb837, 2023. Link

[33] Dongxu Yang, Janne Hakkarainen, Yi Liu, Iolanda Ialongo, Zhaonan Cai, and Johanna Tamminen: Detection of anthropogenic CO2 emission signatures with TanSat CO2 and with Copernicus Sentinel-5 Precursor (S5P) NO2 measurements: first results, Advances in Atmospheric Sciences, doi:10.1007/s00376-022-2237-5, 2022. Link

[32] Janne Hakkarainen, Iolanda Ialongo, Erik Koene, Monika E. Szeląg, Johanna Tamminen, Gerrit Kuhlmann, Dominik Brunner: Analyzing Local Carbon Dioxide and Nitrogen Oxide Emissions From Space Using the Divergence Method: An Application to the Synthetic SMARTCARB Dataset, Frontiers in Remote Sensing, vol 3, 2022, doi:10.3389/frsen.2022.878731 Link

[31] Jääskeläinen, E., Manninen, T., Hakkarainen, J., and Tamminen, J.: Filling gaps of black-sky surface albedo of the Arctic sea ice using gradient boosting and brightness temperature data, International Journal of Applied Earth Observation and Geoinformation, 107,102701 (2022). doi:10.1016/j.jag.2022.102701. Link

[30] Boesch, Hartmut, Yi Liu, Johanna Tamminen, Dongxu Yang, Paul I. Palmer, Hannakaisa Lindqvist, Zhaonan Cai, Ke Che, Antonio Di Noia, Liang Feng, Janne Hakkarainen, Iolanda Ialongo, Nikoleta Kalaitzi, Tomi Karppinen, Rigel Kivi, Ella Kivimäki, Robert J. Parker, Simon Preval, Jing Wang, Alex J. Webb, Lu Yao, and Huilin Chen: Monitoring Greenhouse Gases from Space. Remote Sensing, Volume 13(14), doi:10.3390/rs13142700, 2021. Link

[29] Iolanda Ialongo, Nadezhda Stepanova, Janne Hakkarainen, Henrik Virta, and Daria Gritsenko: Satellite-based estimates of nitrogen oxide and methane emissions from gas flaring and oil production activities in Sakha Republic, Russia, Atmospheric Environment: X, Volume 11, doi:10.1016/j.aeaoa.2021.100114, 2021. Link

[28] Janne Hakkarainen, Monika E. Szeląg, Iolanda Ialongo, Christian Retscher, Tomohiro Oda, and David Crisp: Analyzing nitrogen oxides to carbon dioxide emission ratios from space: A case study of Matimba Power Station in South Africa, Atmospheric Environment: X, Volume 10, doi:10.1016/j.aeaoa.2021.100110, 2021. Link

[27] Ramona Maraia, Sebastian Springer, Heikki Haario, Janne Hakkarainen, and Eero Saksman: Parameter estimation for stochastic chaotic systems. International Journal for Uncertainty Quantification, doi:10.1615/Int.J.UncertaintyQuantification.2020032807, 2020. Link

[26] Kivimäki, Ella; Lindqvist, Hannakaisa; Hakkarainen, Janne; Laine, Marko; Sussmann, Ralf; Tsuruta, Aki; Detmers, Rob; Deutscher, Nicholas M.; Dlugokencky, Edward J.; Hase, Frank; Hasekamp, Otto; Kivi, Rigel; Morino, Isamu; Notholt, Justus; Pollard, David F.; Roehl, Coleen; Schneider, Matthias; Sha, Mahesh K.; Velazco, Voltaire A.; Warneke, Thorsten; Wunch, Debra; Yoshida, Yukio; Tamminen, Johanna. "Evaluation and Analysis of the Seasonal Cycle and Variability of the Trend from GOSAT Methane Retrievals." Remote Sens. 11, no. 7: 882, doi:10.3390/rs11070882, 2019. Link

[25] Janne Hakkarainen, Iolanda Ialongo, Shamil Maksyutov, and David Crisp: Analysis of Four Years of Global XCO2 Anomalies as Seen by Orbiting Carbon Observatory-2, Remote Sens. 11, no. 7: 850, doi:10.3390/rs11070850, 2019. Link

[24] Janne Hakkarainen, Zenith Purisha, Antti Solonen, and Samuli Siltanen: Undersampled dynamic X-ray tomography with dimension reduction Kalman filter. IEEE Transactions on Computational Imaging, doi:10.1109/TCI.2019.2896527. Link – arXiv:1805.00871

[23] Wang, S., Zhang, Y., Hakkarainen, J., Ju, W., Liu, Y., Jiang, F., and He, W. (2018). Distinguishing anthropogenic CO2 emissions from different energy intensive industrial sources using OCO‐2 observations: a case study in northern China. Journal of Geophysical Research: Atmospheres, 123, doi:10.1029/2018JD029005. Link

[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

[8] Hartmut Boesch, Yi Liu, Paul I. Palmer, Johanna Tamminen, Jasdeep S. Anand, Zhaonan Cai, Ke Che, Huilin Chen, Xi Chen, Liang Feng, Janne Hakkarainen, Pauli Heikkinen, Nikoleta Kalaitzi, Rigel Kivi, Robert Parker, Peter Somkuti, Jing Wang, Alex Webb, Dongxu Yang, Lu Yao, You Yi, Monitoring Greenhouses Gases over China Using Space-Based Observations, Journal of Geodesy and Geoinformation Science, 2020, 3(4), doi:10.11947/j.JGGS.2020.0402. Link

[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