Publications

• Peer-reviewed publications

• Theses

Peer-reviewed publications

2025

Mikkonen, A., Koskinen, A., Tamminen, J. and Lindqvist, H.: "Scattering graph method for 3D radiative transfer," Opt. Express 33, 35489-35509, 2025.

Häkkilä, T., Grandin, M., Battarbee, M., Szeląg, M. E., Alho, M., Kotipalo, L., Kalakoski, N., Verronen, P. T., and Palmroth, M.: Atmospheric odd nitrogen response to electron forcing from a 6D magnetospheric hybrid-kinetic simulation, Ann. Geophys., 43, 217–240, https://doi.org/10.5194/angeo-43-217-2025, 2025.

Santaren, D., Hakkarainen, J., Kuhlmann, G., Koene, E., Chevallier, F., Ialongo, I., Lindqvist, H., Nurmela, J., Tamminen, J., Amoros, L., Brunner, D., and Broquet, G.: Benchmarking data-driven inversion methods for the estimation of local CO2 emissions from XCO2 and NO2 satellite images, Atmos. Meas. Tech., 8, 211–239, doi:10.5194/amt-18-211-2025, 2025.

Hooghiem, J.J.D., Gromov, S., Kivi, R. et al. Isotopic source signatures of stratospheric CO inferred from in situ vertical profiles. npj Clim Atmos Sci 8, 110 (2025). https://doi.org/10.1038/s41612-025-00986-1

Ayazpour, et al., incl. Kivi R. (2025). Aura ozone monitoring instrument (OMI) Collection 4 formaldehyde products. Earth and Space Science, 12, e2024EA003792. https://doi.org/10.1029/2024EA003792

Sha, M.K.; et al. incl. Karppinen, T., Kivi, R. Fiducial Reference Measurements for Greenhouse Gases (FRM4GHG): Validation of Satellite (Sentinel-5 Precursor, OCO-2, and GOSAT) Missions Using the COllaborative Carbon Column Observing Network (COCCON). Remote Sens. 2025, 17, 734. https://doi.org/10.3390/rs17050734

Hase, F., Castracane, P., Dehn, A., García, O. E., Griffith, D. W. T., Heizmann, L., Jones, N. B., Karppinen, T., Kivi, R., de Mazière, M., Notholt, J., and Sha, M. K.: Implementation and application of an improved phase spectrum determination scheme for Fourier transform spectrometry, Atmos. Meas. Tech., 18, 1257–1267, https://doi.org/10.5194/amt-18-1257-2025, 2025.

2024

Honkanen, M., Heikkinen, P., MacArthur, A., Thum, T., Kivi, R., Lindqvist, H. (2024). UAV-Borne Measurements of Solar-Induced Chlorophyll Fluorescence (SIF) at a Boreal Site. In: Westerlund, T., Peña Queralta, J. (eds) New Developments and Environmental Applications of Drones. FinDrones 2023. Springer, Cham. https://doi.org/10.1007/978-3-031-44607-8_8

Isomäki K., McGrath M.J., Backman L., Leskinen J., Berchet A., Broquet G., Fortems-Cheiney A., Junttila V., Leppänen A., Lindqvist, H., Mengistu A., Mäkelä A., Raivonen M., Thölix L., and Aalto T.: Assessing the role of terrestrial ecosystems in Finland’s total CO2 balance through a comparison of top-down and bottom-up estimates, Boreal Env. Res., 29, 77–102, 2024.

Jacobs, N., O'Dell, C. W., Taylor, T. E., Logan, T. L., Byrne, B., Kiel, M., Kivi, R., Heikkinen, P., Merrelli, A., Payne, V. H., and Chatterjee, A.: The importance of digital elevation model accuracy in XCO2 retrievals: improving the Orbiting Carbon Observatory 2 Atmospheric Carbon Observations from Space version 11 retrieval product, Atmos. Meas. Tech., 17, 1375–1401, https://doi.org/10.5194/amt-17-1375-2024, 2024.

Karppinen, T., Sundström, A.-M., Lindqvist, H., Hatakka, J., and Tamminen, J.: Satellite-based assessment of national carbon monoxide concentrations for air quality reporting in Finland, Remote Sensing Applications: Society and Environment, 33, 101120, 2024.

Kauppi, A., Kukkurainen, A., Lipponen, A., Laine, M., Arola, A., Lindqvist, H., and Tamminen, J., A Bayesian Framework to Quantify Uncertainty in Aerosol Optical Model Selection Applied to TROPOMI Measurements, Remote Sens., 16(11), 1945, (2024), https://doi.org/10.3390/rs16111945

Kuhlmann, G., Koene, E., Meier, S., Santaren, D., Broquet, G., Chevallier, F., Hakkarainen, J., Nurmela, J., Amorós, L., Tamminen, J., and Brunner, D.: The ddeq Python library for point source quantification from remote sensing images (version 1.0), Geosci. Model Dev., 17, 4773–4789, https://doi.org/10.5194/gmd-17-4773-2024, (2024).

Lakkala, K., Aun, M., Sanchez, R., Kujanpää, J., Arola, A., Bernhard, G., García Skabar, Y., Hassinen, S., Heikkilä, A., Karhu, J.M., Karppinen, T., Suokanerva, H., Tamminen J., 2024: UV radiation measurements at Arctic and Antarctic sites: Results from Sodankylä (67N) and Marambio (64S). AIP Conf. Proc. 18 January 2024; 2988 (1): 090005. https://doi.org/10.1063/5.0183783

Laughner, J. L., et al., incl. Kivi, R. The Total Carbon Column Observing Network's GGG2020 data version, Earth Syst. Sci. Data, 16, 2197–2260, https://doi.org/10.5194/essd-16-2197-2024, 2024.

Lindqvist, H., Kivimäki, E., Häkkilä, T., Tsuruta, A., Schneising, O., Buchwitz, M., Lorente, A., Martinez Velarte, M., Borsdorff, T., Alberti, C., Backman, L., Buschmann, M., Chen, H., Dubravica, D., Hase, F., Heikkinen, P., Karppinen, T., Kivi, R., McGee, E., Notholt, J., Rautiainen, K., Roche, S., Simpson, W., Strong, K., Tu, Q., Wunch, D., Aalto, T., and Tamminen, J.: Evaluation of Sentinel-5P TROPOMI Methane Observations at Northern High Latitudes, Remote Sens., 16, 2979, https://doi.org/10.3390/rs16162979, 2024.

Mikkonen A., Lindqvist H., Peltoniemi J., Tamminen, J., Non-Lambertian snow surface reflection models for simulated top-of-the-atmosphere radiances in the NIR and SWIR wavelengths, Journal of Quantitative Spectroscopy and Radiative Transfer, 315, 108892 (2024), https://doi.org/10.1016/j.jqsrt.2023.108892.

Mottungan, K., incl. Kivi, R.: Local and regional enhancements of CH4, CO, and CO2 inferred from TCCON column measurements, Atmos. Meas. Tech., 17, 5861–5885, https://doi.org/10.5194/amt-17-5861-2024, 2024.

Müller, J.-F., incl. Kivi R., Bias correction of OMI HCHO columns based on FTIR and aircraft measurements and impact on top-down emission estimates, Atmos. Chem. Phys., 24, 2207–2237, https://doi.org/10.5194/acp-24-2207-2024, 2024.

Nilsen, K., Kivi, R., Laine, M. et al. Time-varying trends from Arctic ozonesonde time series in the years 1994–2022. Nature Scientific Reports 14, 27683 (2024). https://doi.org/10.1038/s41598-024-75364-7

Oomen, G.-M., incl. Kivi R., Weekly derived top-down volatile-organic-compound fluxes over Europe from TROPOMI HCHO data from 2018 to 2021, Atmos. Chem. Phys., 24, 449–474, https://doi.org/10.5194/acp-24-449-2024, 2024.

Paatero, J., Hatakka, J., Kivi, R. and Immonen, J. (2024) "Radioactivity soundings of the upper atmosphere in Finland 1962-2022", Annals of Geophysics, 67(2), p. PA214. doi: 10.4401/ag-9069.

Pulliainen, J., Aurela, M., Aalto, T., Böttcher, K., Cohen, J., Derksen, C., Heimann, M., Helbig, M., Kolari, P., Kontu, A., Krasnova, A., Launiainen, S., Lemmetyinen, J., Lindqvist, H., Lindroth, A., Lohila, A., Luojus, K., Mammarella, I., Markkanen, T., Nevala, E., Noe, S., Peichl, M., Pumpanen, J., Rautiainen, K., Salminen, M., Sonnentag, O., Takala, M., Thum, T., Vesala, T., Vestin, P., Increase in gross primary production of boreal forests balanced out by increase in ecosystem respiration, Remote Sensing of Environment, 313, (2024), https://doi.org/10.1016/j.rse.2024.114376.

Santaren, D., Hakkarainen, J., Kuhlmann, G., Koene, E., Chevallier, F., Ialongo, I., Lindqvist, H., Nurmela, J., Tamminen, J., Amoros, L., Brunner, D., and Broquet, G.: Benchmarking data-driven inversion methods for the estimation of local CO2 emissions from XCO2 and NO2 satellite images, Atmos. Meas. Tech., doi:10.5194/amt-2023-241, 2024.

Sha, Mahesh Kumar; De Mazière, Martine; Notholt, Justus; Blumenstock, Thomas; Bogaert, Pieter; Cardoen, Pepijn; Chen, Huilin; Desmet, Filip; García, Omaira; Griffith, David W. T.; Hase,Frank; Heikkinen, Pauli; Herkommer, Benedikt; Hermans, Christian; Jones, Nicholas; Kivi, Rigel; Kumps, Nicolas; Langerock, Bavo; Macleod, Neil A.; Makkor, Jamal; Markert, Winfried; Petri, Christof; Tu, Qiansi; Vigouroux, Corinne; Weidmann, Damien; Zhou, Minqiang, Fiducial Reference Measurement for Greenhouse Gases (FRM4GHG), Remote Sensing, 2072-4292, 16, 18, 10.3390/rs16183525.

2023

Amorós, L., Hakkarainen, J., Lindqvist, H.: Towards a machine learning model to predict carbon dioxide fluxes from space, Proceedings of the 2023 conference on Big Data from Space, Soille, P., Lumnitz, S. and Albani, S. editor(s), Publications Office of the European Union, Luxembourg, 2023, https://dx.doi.org/10.2760/46796

Byrne B, et al., incl Kivi R., National CO2 budgets (2015-2020) inferred from atmospheric CO2 observations in support of the global stocktake, Earth System Science Data Vol. 15 p. 963-1004. https://essd.copernicus.org/articles/15/963/2023/ doi: 10.5194/essd-15-963-2023

Gathen P.V, Kivi R, Wohltmann I, Salawitch R.J, Rex M, Reply to: No evidence of worsening Arctic springtime ozone losses over the 21st century; Nature Communications Vol. 14. https://doi.org/10.1038/s41467-023-37135-2 doi: 10.1038/s41467-023-37135-2

Guan Y, Keppel-Aleks G, Doney S.C, Petri C, Pollard D, Wunch D, Hase F, Ohyama H, Morino I, Notholt J, Shiomi K, Strong K, Kivi R, Buschmann M, Deutscher N, Wennberg P, Sussmann R, Velazco V.A, Té Y, Characteristics of interannual variability in space-based XCO2 global observations, Atmospheric Chemistry and Physics Vol. 23 p. 5355-5372. https://acp.copernicus.org/articles/23/5355/2023/ doi: 10.5194/acp-23-5355-2023

Karppinen, T., Sundström, A.-M., Lindqvist, H., Hatakka, J., Tamminen, J., Satellite-based assessment of national carbon monoxide concentrations for air quality reporting in Finland, Remote Sensing Applications: Society and Environment, 33, 101120 (2024), https://doi.org/10.1016/j.rsase.2023.101120

Kwon H, et al. incl. Kivi R., Validation of OMPS Suomi NPP and OMPS NOAA-20 Formaldehyde Total Columns With NDACC FTIR Observations, Earth and Space Science Vol. 10. e2022EA002778 2022EA002778. https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2022EA002778 doi: https://doi.org/10.1029/2022EA002778

Lakkala, K., Aun, M., Sanchez, R., Kujanpää, J., Arola, A., Bernhard, G., García Skabar, Y., Hassinen, S., Heikkilä, A., Karhu, J.M., Karppinen, T., Suokanerva, H., Tamminen J., (2023), UV radiation measurements at Arctic and Antarctic sites: results from Sodankylä (67N) and Marambio (64S), Proc. International Radiation Symposium 2022, Thessaloniki, 4-8 July 2022, Greece. Accepted

Laughner J.L, et al. incl Kivi R., A new algorithm to generate a priori trace gas profiles for the GGG2020 retrieval algorithm, Atmospheric Measurement Techniques Vol. 16 p. 1121-1146. https://amt.copernicus.org/articles/16/1121/2023/ doi: 10.5194/amt-16-1121-2023

Meijer, Y., Andersson, E., Boesch, H., Dubovik, O., Houweling, S., Landgraf, J., Lang, R., and Lindqvist, H., Anthropogenic greenhouse-gas emission monitoring with the Copernicus CO2M Mission, Frontiers in Remote Sensing, 4, 1217568 (2023). https://doi.org/10.3389/frsen.2023.1217568

Miinalainen, T., Kokkola, H., Lipponen, A., Hyvärinen, A.-P., Soni, V. K., Lehtinen, K. E. J., and Kühn, T., Assessing the climate and air quality effects of future aerosol mitigation in India using a global climate model combined with statistical downscaling. Atmos. Chem. Phys., 23, 3471–3491 (2023). https://doi.org/10.5194/acp-23-3471-2023

Someya Y, Yoshida Y, Ohyama H, Nomura S, Kamei A, Morino I, Mukai H, Matsunaga T, Laughner J.L, Velazco V.A, Herkommer B, Té Y, Sha M.K, Kivi R, Zhou M, Oh Y.S, Deutscher N.M, Griffith D.W, Update on the GOSAT TANSO-FTS SWIR Level 2 retrieval algorithm, Atmospheric Measurement Techniques Vol. 16 p. 1477-1501. https://amt.copernicus.org/articles/16/1477/2023/ doi: 10.5194/amt-16-1477-2023

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.

Whaley C.H, et al. incl Kivi R. Arctic tropospheric ozone: assessment of current knowledge and model performance, Atmospheric Chemistry and Physics Vol. 23 p. 637-661. https://acp.copernicus.org/articles/23/637/2023/ doi: 10.5194/acp-23-637-2023

Yoshida Y, Someya Y, Ohyama H, Morino I, Matsunaga T, Deutscher N.M, Griffith D.W, Hase F, Iraci L.T, Kivi R, Notholt J, Pollard D.F, Te Y, Velazco V.A, Wunch D, Quality Evaluation of the Column-Averaged Dry Air Mole Fractions of Carbon Dioxide and Methane Observed by GOSAT and GOSAT-2, SOLA Vol. 19 p. 173-184. doi: 10.2151/sola.2023-023

Zhou, M., Langerock, B., Sha, M. K., Hermans, C., Kumps, N., Kivi, R., Heikkinen, P., Petri, C., Notholt, J., Chen, H., and De Mazière, M.: Atmospheric N2O and CH4 total columns retrieved from lowresolution Fourier transform infrared (FTIR) spectra (Bruker VERTEX 70) in the mid-infrared region, Atmos. Meas. Tech., 16, 5593–5608, https://doi.org/10.5194/amt-16-5593-2023, 2023.

Oomen, G.-M., Müller, J.-F., Stavrakou, T., De Smedt, I., Blumenstock, T., Kivi, R., Makarova, M., Palm, M., Röhling, A., Té, Y., Vigouroux, C., Friedrich, M. M., Frieß, U., Hendrick, F., Merlaud, A., Piters, A., Richter, A., Van Roozendael, M., and Wagner, T.: Weekly-derived top-down VOC fluxes over Europe from TROPOMI HCHO data in 2018–2021, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2023-1972, 2023. Accepted.

Pazmiño, A., Goutail, F., Godin-Beekmann, S., Hauchecorne, A., Pommereau, J.-P., Chipperfield, M. P., Feng, W., Lefèvre, F., Lecouffe, A., Van Roozendael, M., Jepsen, N., Hansen, G., Kivi, R., Strong, K., and Walker, K. A.: Trends in polar ozone loss since 1989: potential sign of recovery in the Arctic ozone column, Atmos. Chem. Phys., 23, 15655–15670, https://doi.org/10.5194/acp-23-15655-2023, 2023.

2022

Agustí-Panareda, A., McNorton, J., Balsamo, G. et al. incl. Kivi, R., Global nature run data with realistic high-resolution carbon weather for the year of the Paris Agreement. Nature Sci Data 9, 160 (2022). https://doi.org/10.1038/s41597-022-01228-2

Alberti, C., Hase, F., Frey, M., Dubravica, D., Blumenstock, T., Dehn, A., Castracane, P., Surawicz, G., Harig, R., Baier, B. C., Bès, C., Bi, J., Boesch, H., Butz, A., Cai, Z., Chen, J., Crowell, S. M., Deutscher, N. M., Ene, D., Franklin, J. E., García, O., Griffith, D., Grouiez, B., Grutter, M., Hamdouni, A., Houweling, S., Humpage, N., Jacobs, N., Jeong, S., Joly, L., Jones, N. B., Jouglet, D., Kivi, R., et al., Improved calibration procedures for the EM27/SUN spectrometers of the COllaborative Carbon Column Observing Network (COCCON), Atmos. Meas. Tech., 15, 2433–2463, https://doi.org/10.5194/amt-15-2433-2022, 2022.

Caldararu, S., Thum, T., Yu, L., Kern, M., Nair, R., Zaehle, S. Long-term ecosystem nitrogen limitation from foliar N data and a land surface model, Glob. Chang. Biol., 28, 493-508 (2022). https://doi.org/10.1111/gcb.15933 Küchler, T., Noël, S., Bovensmann, H., Burrows, J. P., Wagner, T., Borger, C., Borsdorff, T., and Schneider, A.: Total water vapour columns derived from Sentinel 5P using the AMC-DOAS method, Atmos. Meas. Tech., 15, 297–320, https://doi.org/10.5194/amt-15-297-2022, 2022.

Mettig, N., Weber, M., Rozanov, A., Burrows, J. P., Veefkind, P., Thompson, A. M., Stauffer, R. M., Leblanc, T., Ancellet, G., Newchurch, M. J., Kuang, S., Kivi, R., Tully, M. B., Van Malderen, R., Piters, A., Kois, B., Stübi, R., and Skrivankova, P.: Combined UV and IR ozone profile retrieval from TROPOMI and CrIS measurements, Atmos. Meas. Tech., 15, 2955–2978, https://doi.org/10.5194/amt-15-2955-2022, 2022.

Mignani, C., Zimmermann, L., Kivi, R., Berne, A., and Conen, F.: Snowfall in Northern Finland derives mostly from ice clouds, Atmos. Chem. Phys., 22, 13551–13568, https://doi.org/10.5194/acp-22-13551-2022, 2022.

Noël, S., Reuter, M., Buchwitz, M., Borchardt, J., Hilker, M., Schneising, O., Bovensmann, H., Burrows, J. P., Di Noia, A., Parker, R. J., Suto, H., Yoshida, Y., Buschmann, M., Deutscher, N. M., Feist, D. G., Griffith, D. W. T., Hase, F., Kivi, R. et al., Retrieval of greenhouse gases from GOSAT and GOSAT-2 using the FOCAL algorithm, Atmos. Meas. Tech., 15, 3401–3437, https://doi.org/10.5194/amt-15-3401-2022, 2022.

Schneider, A., Borsdorff, T., aan de Brugh, J., Lorente, A., Aemisegger, F., Noone, D., Henze, D., Kivi, R., and Landgraf, J., Retrieving H2O/HDO columns over cloudy and clear-sky scenes from the Tropospheric Monitoring Instrument (TROPOMI), Atmospheric Measurement Techniques 15 (7), 2251–2275 (2022), https://doi.org/10.5194/amt-15-2251-2022

Schneider, M., Ertl, B., Tu, Q., Diekmann, C. J., Khosrawi, F., Röhling, A. N., Hase, F., Dubravica, D., García, O. E., Sepúlveda, E., Borsdorff, T., Landgraf, J., Lorente, A., Butz, A., Chen, H., Kivi, R., et al.: Synergetic use of IASI profile and TROPOMI total-column level 2 methane retrieval products, Atmos. Meas. Tech., 15, 4339–4371, https://doi.org/10.5194/amt-15-4339-2022, 2022.

Taylor, T. E., O'Dell, C. W., Crisp, D., Kuze, A., Lindqvist, H., Wennberg, P. O., Chatterjee, A., Gunson, M., Eldering, A., Fisher, B., Kiel, M., Nelson, R. R., Merrelli, A., Osterman, G., Chevallier, F., Palmer, P. I., Feng, L., Deutscher, N. M., Dubey, M. K., Feist, D. G., García, O. E., Griffith, D. W. T., Hase, F., Iraci, L. T., Kivi, R., Liu, C., De Mazière, M., Morino, I., Notholt, J., Oh, Y.-S., Ohyama, H., Pollard, D. F., Rettinger, M., Schneider, M., Roehl, C. M., Sha, M. K., Shiomi, K., Strong, K., Sussmann, R., Té, Y., Velazco, V. A., Vrekoussis, M., Warneke, T., and Wunch, D.: An 11-year record of XCO2 estimates derived from GOSAT measurements using the NASA ACOS version 9 retrieval algorithm, Earth Syst. Sci. Data, 14, 325–360, https://doi.org/10.5194/essd-14-325-2022, 2022.

Vandenbussche, S.; Langerock, B.; Vigouroux, C.; Buschmann, M.; Deutscher, N.M.; Feist, D.G.; García, O.; Hannigan, J.W.; Hase, F.; Kivi, R.; et al., Nitrous Oxide Profiling from Infrared Radiances (NOPIR): Algorithm Description, Application to 10 Years of IASI Observations and Quality Assessment. Remote Sens. 2022, 14, 1810. https://doi.org/10.3390/rs14081810

2021

Blumenstock T, et al, incl Kivi R., Characterization and potential for reducing optical resonances in Fourier transform infrared spectrometers of the Network for the Detection of Atmospheric Composition Change (NDACC), Atmospheric Measurement Techniques Vol. 14 p. 1239-1252. https://amt.copernicus.org/articles/14/1239/2021/ doi: 10.5194/amt-14-1239-2021, 2021

Boesch, H., Liu, Y., Tamminen, J., Yang, D., Palmer, P.I., Lindqvist, H., Cai, Z., Che, K., Di Noia, A., Feng, L., Hakkarainen, J., Ialongo, I., Kalaitzi, N., Karppinen, T., Kivi, R., Kivimäki, E., Parker, R.J., Preval, S., Wang, J., Webb, A.J., Yao, L., Chen, H.: Monitoring Greenhouse Gases from Space. Remote Sens. 2021, 13, 2700. https://doi.org/10.3390/rs13142700

Dogniaux M, Crevoisier C, Armante R, Capelle V, Delahaye T, Cassé V, Mazière M.D, Deutscher N.M, Feist D.G, Garcia O.E, Griffith D.W, Hase F, Iraci L.T, Kivi R, Morino I, Notholt J, Pollard D.F, Roehl C.M, Shiomi K, Strong K, Té Y, Velazco V.A, Warneke T, The Adaptable 4A Inversion (5AI): description and first XCO2 retrievals from Orbiting Carbon Observatory-2 (OCO-2) observations, Atmospheric Measurement Techniques Vol. 14 p. 4689-4706. https://amt.copernicus.org/articles/14/4689/2021/ doi: 10.5194/amt-14-4689-2021, 2021

Guseva, S., Aurela, M., Cortés, A., Kivi, R., Lotsari, E., MacIntyre, S., et al. (2021). Variable physical drivers of near-surface turbulence in a regulated river. Water Resources Research, 57, e2020WR027939. https://doi.org/10.1029/2020WR027939

Jacobs, N., Simpson, W. R., Graham, K. A., Holmes, C., Hase, F., Blumenstock, T., Tu, Q., Frey, M., Dubey, M. K., Parker, H. A., Wunch, D., Kivi, R., Heikkinen, P., Notholt, J., Petri, C., and Warneke, T.: Spatial distributions of XCO2 seasonal cycle amplitude and phase over northern high-latitude regions, Atmos. Chem. Phys., 21, 16661–16687, https://doi.org/10.5194/acp-21-16661-2021, 2021.

Labzovskii, L. D., Kenea, S. T., Lindqvist H., Kim J, Li S, Byun Y-H, Goo T-Y. Towards Robust Calculation of Interannual CO2 Growth Signal from TCCON (Total Carbon Column Observing Network). Remote Sensing. 2021; 13(19):3868. https://doi.org/10.3390/rs13193868

Lorente A, Borsdorff T, Butz A, Hasekamp O, Brugh J.A, Schneider A, Wu L, Hase F, Kivi R, Wunch D, Pollard D.F, Shiomi K, Deutscher N.M, Velazco V.A, Roehl C.M, Wennberg P.O, Warneke T, Landgraf J, Methane retrieved from TROPOMI: improvement of the data product and validation of the first 2 years of measurements, Atmospheric Measurement Techniques Vol. 14 p. 665-684. https://amt.copernicus.org/articles/14/665/2021/ doi: 10.5194/amt-14-665-2021, 2021

Mendonca, J., Nassar, R., O'Dell, C. W., Kivi, R., Morino, I., Notholt, J., Petri, C., Strong, K., and Wunch, D.: Assessing the feasibility of using a neural network to filter Orbiting Carbon Observatory 2 (OCO-2) retrievals at northern high latitudes, Atmos. Meas. Tech., 14, 7511–7524, https://doi.org/10.5194/amt-14-7511-2021, 2021.

Mettig N, Weber M, Rozanov A, Arosio C, Burrows J.P, Veefkind P, Thompson A.M, Querel R, Leblanc T, Godin-Beekmann S, Kivi R, Tully M.B, Ozone profile retrieval from nadir TROPOMI measurements in the UV range, Atmospheric Measurement Techniques Vol. 14 p. 6057-6082. https://amt.copernicus.org/articles/14/6057/2021/ doi: 10.5194/amt-14-6057-2021, 2021

Noël S, Reuter M, Buchwitz M, Borchardt J, Hilker M, Bovensmann H, Burrows J.P, Noia A.D, Suto H, Yoshida Y, Buschmann M, Deutscher N.M, Feist D.G, Griffith D.W, Hase F, Kivi R, Morino I, Notholt J, Ohyama H, Petri C, Podolske J.R, Pollard D.F, Sha M.K, Shiomi K, Sussmann R, Té Y, Velazco V.A, Warneke T, XCO2 retrieval for GOSAT and GOSAT-2 based on the FOCAL algorithm, Atmospheric Measurement Techniques Vol. 14 p. 3837-3869. https://amt.copernicus.org/articles/14/3837/2021/ doi: 10.5194/amt-14-3837-2021, 2021

Riskilä, E., Lindqvist, H., and Muinonen, K.: Light scattering by fractal roughness elements on ice crystal surfaces, J. Quant. Spectrosc. Radiat. Transfer, 267, 107561, 2021.

Sepúlveda E, Cordero R.R, Damiani A, Feron S, Pizarro J, Zamorano F, Kivi R, Sánchez R, Yela M, Jumelet J, Godoy A, Carrasco J, Crespo J.S, Seckmeyer G, Jorquera J.A, Carrera J.M, Valdevenito B, Cabrera S, Redondas A, Rowe P.M, Evaluation of Antarctic Ozone Profiles derived from OMPS-LP by using Balloon-borne Ozonesondes , Nature Scientific Reports Vol. 11. https://doi.org/10.1038/s41598-021-81954-6 doi: 10.1038/s41598-021-81954-6, 2021

Sha M.K, et al. incl. Kivi R., Validation of methane and carbon monoxide from Sentinel-5 Precursor using TCCON and NDACC-IRWG stations, Atmospheric Measurement Techniques Vol. 14 p. 6249-6304. https://amt.copernicus.org/articles/14/6249/2021/ doi: 10.5194/amt-14-6249-2021, 2021

Stanevich I, Jones D.B, Strong K, Keller M, Henze D.K, Parker R.J, Boesch H, Wunch D, Notholt J, Petri C, Warneke T, Sussmann R, Schneider M, Hase F, Kivi R, Deutscher N.M, Velazco V.A, Walker K.A, Deng F, Characterizing model errors in chemical transport modeling of methane: using GOSAT XCH4 data with weak-constraint four-dimensional variational data assimilation, Atmospheric Chemistry and Physics Vol. 21 p. 9545-9572. https://acp.copernicus.org/articles/21/9545/2021/ doi: 10.5194/acp-21-9545-2021, 2021.

Steinbrecht W, et al incl. Kivi R. Tropospheric Ozone Across the Northern Hemisphere, Geophysical Research Letters Vol. 48. e2020GL091987 2020GL091987.https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2020GL091987 doi: https://doi.org/10.1029/2020GL091987, 2021

Taylor, T. E., O'Dell, C. W., Crisp, D., Kuze, A., Lindqvist, H., Wennberg, P. O., Chatterjee, A., Gunson, M., Eldering, A., Fisher, B., Kiel, M., Nelson, R. R., Merrelli, A., Osterman, G., Chevallier, F., Palmer, P. I., Feng, L., Deutscher, N. M., Dubey, M. K., Feist, D. G., Garcia, O. E., Griffith, D., Hase, F., Iraci, L. T., Kivi, R., Liu, C., De Mazière, M., Morino, I., Notholt, J., Oh, Y.-S., Ohyama, H., Pollard, D. F., Rettinger, M., Roehl, C. M., Schneider, M., Sha, M. K., Shiomi, K., Strong, K., Sussmann, R., Té, Y., Velazco, V. A., Vrekoussis, M., Warneke, T., and Wunch, D.: An eleven year record of XCO2 estimates derived from GOSAT measurements using the NASA ACOS version 9 retrieval algorithm, Earth Syst. Sci. Data Discuss. [preprint], https://doi.org/10.5194/essd-2021-247, in press, 2021.

Tu Q, Hase F, Blumenstock T, Schneider M, Schneider A, Kivi R, Heikkinen P, Ertl B, Diekmann C, Khosrawi F, Sommer M, Borsdorff T, Raffalski U, Intercomparison of arctic XH2O observations from three ground-based Fourier transform infrared networks and application for satellite validation, Atmospheric Measurement Techniques Vol. 14 p. 1993-2011.https://amt.copernicus.org/articles/14/1993/2021/ doi: 10.5194/amt-14-1993-2021, 2021

Verhoelst T, et al. incl. Kivi R, Ground-based validation of the Copernicus Sentinel-5P TROPOMI NO2 measurements with the NDACC ZSL-DOAS, MAX-DOAS and Pandonia global networks Atmospheric Measurement Techniques Vol. 14 p. 481-510. https://amt.copernicus.org/articles/14/481/2021/ doi: 10.5194/amt-14-481-2021, 2021

von der Gathen P, Kivi R, Wohltmann I, Salawitch R, Rex M, Climate change favours large seasonal loss of Arctic ozone. Nature Communications 12, 3886 (2021). https://doi.org/10.1038/s41467-021-24089-6, 2021

Wohltmann I, Gathen P.V, Lehmann R, Deckelmann H, Manney G.L, Davies J, Tarasick D, Jepsen N, Kivi R, Lyall N, Rex M, Chemical Evolution of the Exceptional Arctic Stratospheric Winter 2019/2020 Compared to Previous Arctic and Antarctic Winters, Journal of Geophysical Research Vol. 126. e2020JD034356 2020JD034356. https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2020JD034356 doi: https://doi.org/10.1029/2020JD034356, 2021.

Xu, J., Lindqvist, H., Liu, Q., Wang, K., and Wang, L.: Estimating the spatial and temporal variability of the ground-level NO2 concentration in China during 2005–2019 based on satellite remote sensing, Atmospheric Pollution Research, 12(2), 57-67, 2021.

Zawada, D., Franssens, G., Loughman, R., Mikkonen, A., Rozanov, A., Emde, C., Bourassa, A., Dueck, S., Lindqvist, H., Ramon, D., Rozanov, V., Dekemper, E., Kyrölä, E., Burrows, J.P., Fussen, D., Degenstein, D.: Systematic Comparison of Vectorial Spherical Radiative Transfer Models in Limb Scattering Geometry, Atmos. Meas. Tech., 14, 3953–3972, 2021, https://doi.org/10.5194/amt-14-3953-2021.

2020

Bourgeois I, Peischl J, Thompson C.R, Aikin K.C, Campos T, Clark H, Commane R, Daube B, Diskin G.W, Elkins J.W, Gao R, Gaudel A, Hintsa E.J, Johnson B.J, Kivi R, McKain K, Moore F.L, Parrish D.D, Querel R, Ray E, Sánchez R, Sweeney C, Tarasick D.W, Thompson A.M, Thouret V, Witte J.C, Wofsy S.C, Ryerson T.B Global-scale distribution of ozone in the remote troposphere from ATom and HIPPO airborne field missions, Atmos. Chem. Phys., 20, 10611-10635, https://doi.org/10.5194/acp-20-10611-2020, 2020

Hooghiem J.J, Popa M.E, Röckmann T, Grooß J, Tritscher I, Müller R, Kivi R, Chen H, Wildfire smoke in the lower stratosphere identified by in situ CO observations, Atmospheric Chemistry and Physics Vol. 20 p. 13985-14003. https://acp.copernicus.org/articles/20/13985/2020/ doi: 10.5194/acp-20-13985-2020, 2020

Huang Y, Kok J. F., Kandler K, Lindqvist H, Nousiainen T, Sakai T, Adebiyi A, Jokinen O Climate Models and Remote Sensing Retrievals Neglect Substantial Desert Dust Asphericity, Geophysical Research Letters, 47,e2019GL086592. https://doi.org/10.1029/2019GL086592, 2020

Karppinen T, Lamminpää O, Tukiainen S, Kivi R, Heikkinen P, Hatakka J, Laine M, Chen H, Lindqvist H, Tamminen J, Vertical Distribution of Arctic Methane in 2009 - 2018 Using Ground-Based Remote SensingRemote Sens. 2020, 12, 917; doi:10.3390/rs12060917, 2020

Kivi R, Dörnbrack A, Sprenger M, Vömel H, Far-Ranging Impact of Mountain Waves Excited Over Greenland on Stratospheric Dehydration and Rehydration, Journal of Geophysical Research Vol. 125. e2020JD033055 10.1029/2020JD033055. https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2020JD033055 doi: 10.1029/2020JD033055, 2020

Lakkala K, Kujanpää J, Brogniez C, Henriet N, Arola A, Aun M, Auriol F, Bais A.F., Bernhard G, De Bock V, Catalfamo M, Deroo C, Diémoz H, Egli L, Forestier J-B, Fountoulakis I, Garcia R.D., Gröbner J, Hassinen S, Heikkilä A, Henderson S, Hûlsen G, Johnsen B, Kalakoski N, Karanikolas A, Karppinen T, Lamy K, Léon-Luis S.F., Lindfors A, Metzger J-M, Minvielle F, Muskatel H.B., Portafaix T, Redondas A, Sanchez R, Siani A.M., Svendby T, Tamminen J, Validation of the TROPOspheric Monitoring Instrument (TROPOMI) surface UV radiation product, Atmos. Meas. Tech., 13, 6999?7024, https://doi.org/10.5194/amt-13-6999-2020, 2020.

Laube J.C, Elvidge E.C, Adcock K.E, Baier B, Brenninkmeijer C.A, Chen H, Droste E.S, Grooß J, Heikkinen P, Hind A.J, Kivi R, Lojko A, Montzka S.A, Oram D.E, Randall S, Röckmann T, Sturges W.T, Sweeney C, Thomas M, Tuffnell E, Ploeger F, Investigating stratospheric changes between 2009 and 2018 with aircraft, AirCores, and a global model focusing on CFC-11, Atmos. Chem. Phys., 20, 9771-9782, https://doi.org/10.5194/acp-20-9771-2020, 2020.

Madonna F, Kivi R, Dupont J, Ingleby B, Fujiwara M, Romanens G, Hernandez M, Calbet X, Rosoldi M, Giunta A, Karppinen T, Iwabuchi M, Hoshino S, Rohden C.V, Thorne P.W, Use of automatic radiosonde launchers to measure temperature and humidity profiles from the GRUAN perspective, Atmospheric Measurement Techniques Vol. 13 p. 3621-3649. https://amt.copernicus.org/articles/13/3621/2020/, doi: 10.5194/amt-13-3621-2020, 2020

Jacobs N, Simpson W.R, Wunch D, O’Dell C.W, Osterman G.B, Hase F, Blumenstock T, Tu Q, Frey M, Dubey M.K, Parker H.A, Kivi R, Heikkinen P Quality controls, bias, and seasonality of CO2 columns in the Boreal Forest with OCO-2, TCCON, and EM27/SUN measurements, Atmospheric Measurement Techniques, Vol. 2020 p. 1-42.https://amt.copernicus.org/preprints/amt-2019-505/, doi: 10.5194/amt-2019-505, 2020

Nalli N.R, Tan C, Warner J, Divakarla M, Gambacorta A, Wilson M, Zhu T, Wang T, Wei Z, Pryor K, Kalluri S, Zhou L, Sweeney C, Baier B.C, McKain K, Wunch D, Deutscher N.M, Hase F, Iraci L.T, Kivi R, Morino I, Notholt J, Ohyama H, Pollard D.F, Tao Y, Velazco V.A, Warneke T, Sussmann R, Rettinger M, Validation of Carbon Trace Gas Profile Retrievals from the NOAA-Unique Combined Atmospheric Processing System for the Cross-Track Infrared Sounder, Remote Sensing Vol. 12. https://www.mdpi.com/2072-4292/12/19/3245, doi: 10.3390/rs12193245, 2020

Oshio H, Yoshida Y, Matsunaga T, Deutscher N.M, Dubey M, Griffith D.W, Hase F, Iraci L.T, Kivi R, Liu C, Morino I, Notholt J, Oh Y, Ohyama H, Petri C, Pollard D.F, Roehl C, Shiomi K, Sussmann R, Te Y, Velazco V.A, Warneke T, Wunch D, Bias Correction of the Ratio of Total Column CH4 to CO2 Retrieved from GOSAT Spectra, Remote Sensing Vol. 12. https://www.mdpi.com/2072-4292/12/19/3155, doi: 10.3390/rs12193155, 2020

Parker R.J, Webb A, Boesch H, Somkuti P, Guillo R.B, Noia A.D, Kalaitzi N, Anand J, Bergamaschi P, Chevallier F, Palmer P.I, Feng L, Deutscher N.M, Feist D.G, Griffith D.W, Hase F, Kivi R, Morino I, Notholt J, Oh Y, Ohyama H, Petri C, Pollard D.F, Roehl C, Sha M.K, Shiomi K, Strong K, Sussmann R, Te Y, Velazco V.A, Warneke T, Wennberg P.O, Wunch D A Decade of GOSAT Proxy Satellite CH4 Observations Earth Syst. Sci. Data, 12, 3383-3412, https://doi.org/10.5194/essd-12-3383-2020, 2020.

Philipona R, Kräuchi A, Kivi R, Peter T, Wild M, Dirksen R, Fujiwara M, Sekiguchi M, Hurst D, Becker R, Balloon-borne radiation measurements demonstrate radiative forcing by water vapor and clouds, Meteorologische Zeitschrift Vol. 29 p. 501-509. http://dx.doi.org/10.1127/metz/2020/1044, doi: 10.1127/metz/2020/1044, 2020

Reuter M, Buchwitz M, Schneising O, Noël S, Bovensmann H, Burrows J.P, Boesch H, Noia A.D, Anand J, Parker R.J, Somkuti P, Wu L, Hasekamp O.P, Aben I, Kuze A, Suto H, Shiomi K, Yoshida Y, Morino I, Crisp D, O’Dell C.W, Notholt J, Petri C, Warneke T, Velazco V.A, Deutscher N.M, Griffith D.W, Kivi R, Pollard D.F, Hase F, Sussmann R, Té Y.V, Strong K, Roche S, Sha M.K, Mazière M.D, Feist D.G, Iraci L.T, Roehl C.M, Retscher C, Schepers D, Ensemble-based satellite-derived carbon dioxide and methane column-averaged dry-air mole fraction data sets (2003-2018) for carbon and climate applications, Atmospheric Measurement Techniques Vol. 13 p. 789-819. https://www.atmos-meas-tech.net/13/789/2020/ doi: 10.5194/amt-13-789-2020, 2020

Schneider A, Borsdorff T, Brugh J.A, Aemisegger F, Feist D.G, Kivi R, Hase F, Schneider M, Landgraf J, First data set of H2O/HDO columns from the Tropospheric Monitoring Instrument (TROPOMI), Atmospheric Measurement Techniques Vol. 13 p. 85-100. https://www.atmos-meas-tech.net/13/85/2020/ doi: 10.5194/amt-13-85-2020, 2020

Sha M.K, Mazière M.D, Notholt J, Blumenstock T, Chen H, Dehn A, Griffith D.W, Hase F, Heikkinen P, Hermans C, Hoffmann A, Huebner M, Jones N, Kivi R, Langerock B, Petri C, Scolas F, Tu Q, Weidmann D, Intercomparison of low- and high-resolution infrared spectrometers for ground-based solar remote sensing measurements of total column concentrations of CO2, CH4, and CO, Atmospheric Measurement Techniques Vol. 13 p. 4791-4839. https://amt.copernicus.org/articles/13/4791/2020/ doi: 10.5194/amt-13-4791-2020, 2020

Stanevich I, Jones D.B, Strong K, Parker R.J, Boesch H, Wunch D, Notholt J, Petri C, Warneke T, Sussmann R, Schneider M, Hase F, Kivi R, Deutscher N.M, Velazco V.A, Walker K.A, Deng F, Characterizing model errors in chemical transport modeling of methane, Geoscientific Model Development Vol. 13 p. 3839-3862., https://gmd.copernicus.org/articles/13/3839/2020/ doi: 10.5194/gmd-13-3839-2020, 2020

Tu Q, Hase F, Blumenstock T, Kivi R, Heikkinen P, Sha M.K, Raffalski U, Landgraf J, Lorente A, Borsdorff T, Chen H, Dietrich F, Chen J, Intercomparison of atmospheric CO2 and CH4 abundances on regional scales in boreal areas using Copernicus Atmosphere Monitoring Service (CAMS) analysis, COllaborative Carbon Column Observing Network (COCCON) spectrometers, and Sentinel-5 Precursor satellite observations, Atmospheric Measurement Techniques Vol. 13 p. 4751-4771. https://amt.copernicus.org/articles/13/4751/2020/, doi: 10.5194/amt-13-4751-2020, 2020

Verhoelst T, Compernolle S, Pinardi G, Lambert J, Eskes H.J, Eichmann K, Fjæraa A.M, Granville J, Niemeijer S, Cede A, Tiefengraber M, Hendrick F, Pazmiño A, Bais A, Bazureau A, Boersma K.F, Bognar K, Dehn A, Donner S, Elokhov A, Gebetsberger M, Goutail F, Mora M.G, Gruzdev A, Gratsea M, Hansen G.H, Irie H, Jepsen N, Kanaya Y, Karagkiozidis D, Kivi R, Kreher K, Levelt P.F, Liu C, Müller M, Comas M.N, Piters A.J, Pommereau J, Portafaix T, Puentedura O, Querel R, Remmers J, Richter A, Rimmer J, Cárdenas C.R, Miguel L.S, Sinyakov V.P, Strong K, Roozendael M.V, Veefkind J.P, Wagner T, Wittrock F, González M.Y, Zehner C, Ground-based validation of the Copernicus Sentinel-5p TROPOMI NO2 measurements with the NDACC ZSL-DOAS, MAX-DOAS and Pandonia global networks, Atmospheric Measurement Techniques Discussions Vol. 2020 p. 1-40. https://amt.copernicus.org/preprints/amt-2020-119/, doi: 10.5194/amt-2020-119, 2020

Vigouroux C, Langerock B, Aquino C.A, Blumenstock T, Cheng Z, Mazière M.D, Smedt I.D, Grutter M, Hannigan J.W, Jones N, Kivi R, Loyola D, Lutsch E, Mahieu E, Makarova M, Metzger J, Morino I, Murata I, Nagahama T, Notholt J, Ortega I, Palm M, Pinardi G, Röhling A, Smale D, Stremme W, Strong K, Sussmann R, Té Y, Roozendael M.V, Wang P, Winkler, TROPOMI Sentinel-5 Precursor formaldehyde validation using an extensive network of ground-based Fourier-transform infrared stations, Atmospheric Measurement Techniques Vol. 13 p. 3751-3767. https://amt.copernicus.org/articles/13/3751/2020/ doi: 10.5194/amt-13-3751-2020, 2020

Wilzewski J.S, Roiger A, Strandgren J, Landgraf J, Feist D.G, Velazco V.A, Deutscher N.M, Morino I, Ohyama H, Té Y, Kivi R, Warneke T, Notholt J, Dubey M, Sussmann R, Rettinger M, Hase F, Shiomi K, Butz A, Spectral sizing of a coarse-spectral-resolution satellite sensor for XCO2, Atmospheric Measurement Techniques Vol. 13 p. 731-745. https://www.atmos-meas-tech.net/13/731/2020/ doi: 10.5194/amt-13-731-2020, 2020

Wohltmann I, Gathen P.V, Lehmann R, Maturilli M, Deckelmann H, Manney G.L, Davies J, Tarasick D, Jepsen N, Kivi R, Lyall N, Rex M, Near-Complete Local Reduction of Arctic Stratospheric Ozone by Severe Chemical Loss in Spring 2020, Geophysical Research Letters Vol. 47. e2020GL089547 10.1029/2020GL089547. https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2020GL089547 doi: 10.1029/2020GL089547, 2020

Xu J, Lindqvist H, Liu Q, Wang K, Wang L, Estimating the spatial and temporal variability of the ground-level NO2 concentration in China during 2005-2019 based on satellite remote sensing, Atmospheric Pollution Research, https://doi.org/10.1016/j.apr.2020.10.008, 2020

Yang D, Boesch H, Liu Y, Somkuti P, Cai Z, Chen X, Noia A.D, Lin C, Lu N, Lyu D, Parker R.J, Tian L, Wang M, Webb A, Yao L, Yin Z, Zheng Y, Deutscher N.M, Griffith D.W, Hase F, Kivi R, Morino I, Notholt J, Ohyama H, Pollard D.F, Shiomi K, Sussmann R, TÃc Y, Velazco V.A, Warneke T, Wunch D Toward High Precision XCO2 Retrievals From TanSat Observations, Journal of Geophysical Research Vol. 125. e2020JD032794 2020JD032794. https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2020JD032794 doi: https://doi.org/10.1029/2020JD032794, 2020

Theses

2025

Kivimäki, E., PhD, 2025, Evaluation and analysis of satellite-based methane observations at high Northern latitudes, University of Helsinki, Finland.

Mikkonen, A., PhD, 2025, Computational approach to challenges in Radiative Transfer for Remote Sensing of Atmospheric Composition, University of Helsinki, Finland.

2024

Kauppi, A., PhD, 2024, Bayesian Model Selection, Averaging and Discrepancy in Satellite Remote Sensing of Atmospheric Constituents, University of Helsinki, Finland.

Nevala, E., master’s thesis, Detecting Methane Anomalies from Satellite Data in the Arctic, University of Helsinki, Finland

2023

Ervelä, E., master’s thesis, 2023, Automated greenhouse gas plume detection from satellite data using an unsupervised clustering algorithm, University of Turku, Finland

Honkanen, M., master’s thesis, 2023, Drone-based solar-induced fluorescence measurements in northern coniferous forest, Tampere University, Finland

Miinalainen, T., PhD, 2023, Mitigating anthropogenic black carbon: impacts in different regions, University of Eastern Finland, Finland

2022

Nurmela, J., master’s thesis, Power plant carbon dioxide emission quantification with plume modeling, University of Helsinki, Finland

Pihlajamäki, A., PhD, Machine learning approach to atomic simulations of protected gold nanoclusters, University of Jyväskylä, Finland