Publications and presentations

2020

Kurppa M., Roldin P., Strömberg J., Balling A., Karttunen S., Kuuluvainen H., Niemi J.V., Pirjola L., Rönkkö T., Timonen H., Hellsten A. and Järvi L. (2020). Sensitivity of spatial aerosol particle distributions to the boundary conditions in the PALM model system 6.0. Geoscientific Model Development Discussions, https://doi.org/10.5194/gmd-2020-163.

Viippola V., Yli-Pelkonen V., Järvi L., Kulmala M. and Setälä H. (2020). Effects of forests on particle number concentrations in near-road environments across three geographic regions. Environmental Pollution (in print).

Karttunen S., Kurppa M., Auvinen M., Hellsten A. and Järvi L. (2020). Large eddy simulation of the optimal street-tree layout for pedestrian-level aerosol particle concentrations – A case study from a city-boulevard. Atmospheric Environment 6, 10007, https://doi.org/10.1016/j.aeaoa.2020.100073.

Rannik Ü., Vesala T., Peltola O., Novick K. A., Aurela M., Järvi L., Montagnani L., Mölder M., Peichl M., Pilegaard K. and Mammarella I. (2020). Impact of coordinate rotation on eddy covariance fluxes at complex sites. Agricultural and Forest Meteorology 287, 107940, https://doi.org/10.1016/j.agrformet.2020.107940.

Maronga B., Banzhaf S., Burmeister C., Esch T., Forkel R., Fröhlich D., Fuka V., Gehrke K.F., GeletičJ.,  Giersch S., Gronemeier T., Groß G., Heldens W., Hellsten A., Hoffmann F., Inagaki A., Kadasch E., Kanani-Sühring F., Ketelsen K., Khan B.A, Knigge C., Knoop H., KrčP., Kurppa M., Maamari H., Matzarakis A., Mauder M., Pallasch M., Pavlik D., Pfafferott J., Resler J., Rissmann S., Russo E., Salim M., Schrempf M., Schwenkel J.,  Seckmeyer G., Schubert S., Sühring M., von Tils R., Vollmer L., Ward S., Witha B., Wurps H., Zeidler J. and Raasch S. (2020). Overview of the PALM Model System 6.0, Geoscientific Model Development 13, 1335–1372, https://doi.org/10.5194/gmd-13-1335-2020.

Auvinen M., Boi S., Hellsten A., Tanhuanpää T. and Järvi L. (2020). Study of realistic urban boundary layer turbulence with high-resolution large-eddy simulation. Atmosphere 11 (2), 201; https://doi.org/10.3390/atmos11020201.

Rivas I., Beddows D.C.S., Amato F., Green D. C., Järvi L., Hueglin C., Reche C., Timonen H., Fuller G.W., Niemi J.V., Pérez N., Aurela M., Hopke P.K., Alastuey A., Kulmala M., Harrison R.M., Querol X. and Kelly F.J. (2020). Source apportionment of particle number size distribution in urban background and traffic stations in four European cities. Environment International 135, 105345, doi: 10.1016/j.envint.2019.105345

2019

Teinilä K., Aurela M., Niemi J., Kousa A., Petäjä T., Järvi L., Hillamo R., Kangas L., Saarikoski S. and Timonen H. (2019). Concentration variation of gaseous and particulate pollutants in the Helsinki city centre — observations from a two-year campaign from 2013–2015. Boreal Environmental Research 24, 115–136.

Järvi L., Havu M., Ward H.C., Bellucco V., Mcfadden J.P., Toivonen T., Heikinheimo V., Kolari P., Riikonen A. and Grimmond C.S.B. (2019). Spatial modelling of local-scale biogenic and anthropogenic carbon dioxide emissions in Helsinki. Journal of Geophysical Research – Atmospheres 124, doi: 10.1029/2018JD029576.

Kokkonen T.V., Grimmond C.S.B., Murto S., Liu H., Sundström A.-M. and Järvi L. (2019). Simulation of the radiative effect of haze on urban hydrological cycle using reanalysis data in Beijing. Atmospheric Chemistry and Physics 19, 7001-7017, doi: 10-5194/acp-19-7001-2019.

Kurppa M., Hellsten A., Roldin P., Kokkola H., Tonttila J., Kent C., Kumar P., Maronga B. and Järvi L. (2019). Implementation of the sectional aerosol module SALSA into the PALM model system 6.0: Model development and first evaluation. Geoscientific Model Development, 12, 1403-1422, doi: 10.5194/gmd-12-1403-2019, https://www.geosci-model-dev.net/12/1403/2019/.

2018

Kokkonen T.V., Grimmond C.S.B., Oke T., Christen A. and Järvi L. (2018). The effect of urbanization and densification on long-term water balance in Vancouver. Water Resources Research  54 (9), 6625-6642, doi: 10.1029/2017WR022445.

Oosterwijk A., Henzing B. and Järvi L. (2018). On the application of spectral corrections to particle flux measurements. Environmental Science: Nano 5, 2315-2324, doi: 10.1039/C8EN00501J.

Järvi L., Rannik Ü., Kokkonen T.V, Kurppa M., Karppinen A., Kouznetsov R.D., Rantala P. Vesala T. and Wood C.R. (2018). Uncertainty of eddy covariance flux measurements over and urban area based on two towers. Atmospheric Measurement Techniques 11, 5421-5438, doi: 10.5194/amt-11-5421-2018, https://www.atmos-meas-tech.net/11/5421/2018/.

Kurppa M., Hellsten A., Auvinen M., Vesala T., Raasch S. and Järvi L. (2018). The influence of city-block arrangement on pollutant ventilation and air quality: A large-eddy simulation study. Atmosphere 9 (2), 65, http://www.mdpi.com/2073-4433/9/2/65/.

Kokkonen T.V., Grimmond C.S.B., Räty O.,Ward H.C., Christen A. Oke. T.R., Kotthaus S. and Järvi L. (2018). Sensitivity of Surface Urban Energy and Water Balance Scheme (SUEWS) to downscaling of reanalysis forcing data. Urban Climate 23, 36-52, https://doi.org/10.1016/j.uclim.2017.05.001.

2017

Auvinen M., Järvi L., Hellsten A., Rannik Ü. and Vesala T. (2017). Numerical framework for the computation of urban flux footprints employing large-eddy simulation and Lagrangian stochastic modeling. Geoscientific Model Development 10, 4187-4205, https://www.geosci-model-dev.net/10/4187/2017/gmd-10-4187-2017.html.

Lindberg F., Grimmond C.S.B., Gabey A., Huang B., Kent C.W., Sun T., Theeuwes N.W., Järvi L., Ward H.C., Capel-Timms I., Chang Y., Jonsson P., Krave N., Liu D., Meyer D., Olofson K.F.G., Tan J., Wästberg D., Xue L., Zhang Z. (2017). Urban Multi-scale Environmental Predictor (UMEP): An integrated tool for city-based climate services. Environment Modelling and Software  99, 70-87, https://doi.org/10.1016/j.envsoft.2017.09.020.

Backman J., Wood C.R., Auvinen M., Kangas L., Hannuniemi H., Karppinen A. and Kukkonen J. (2017). Sensitivity analysis of the meteorological pre-processor MPP-FMI 3.0 using algorithmic differentiation. Geoscientific Model Development 10, 3793-3803, https://www.geosci-model-dev.net/10/3793/2017/.

Järvi L., Grimmond C.S.B., McFadden J.P., Christen A., Strachan I.B., Taka M., Warsta L. and Heimann M. (2017). Warming effects on the urban hydrology in cold climate regions. Scientific Reports 7, 5833, https://doi.org/10.1038/s41598-017-05733-y.

Demuzere M., Harshan S., Järvi L., Roth M., Grimmond C.S.B, Masson V., Oleson K. W., Velasco E. and Wouters H. (2017). Impact of urban canopy models and external parameters on the modelled urban energy balance. Quarterly Journal of Royal Meteorological Society 143, 1581-1596, doi: 10.1002/qj.3028, http://onlinelibrary.wiley.com/doi/10.1002/qj.3028/abstract.

Bellucco V., Marras S., Grimmond C.S.B., Järvi L., Sirca C. and Spano D. (2017). Modelling the biogenic CO2 exchange in urban and non-urban ecosystems through the assessment of light-response curve parameters. Agricultural and Forest Meteorology 236, 113-122, http://dx.doi.org/10.1016/j.agrformet.2016.12.011.

2016

Ward H., Kotthaus S., Järvi L. and Grimmond C.S.B. (2016). Surface Urban Energy and Water Balance Scheme (SUEWS): development and evaluation at two UK sites. Urban Climate 18, 1-32, https://doi.org/10.1016/j.uclim.2016.05.001.

Lappalainen H.K., Kerminen V.-M., Petäjä T., Kurten T., Baklanov A., Shvidenko A., Bäck J., Vihma T., Alekseychik P., Arnold S., Arshinov M., Asmi E., Belan B., Bobylev L., Chalov S., Cheng Y., Chubarova N., de Leeuw G., Ding A., Dobrolyubov S., Dubtsov S., Dyukarev E., Elansky N., Eleftheriadis K., Esau I., Filatov N., Flint M., Fu C., Glezer O., Gliko A., Heimann M., Holtslag A.A.M., Hõrrak U., Janhunen J., Juhola S., Järvi L., Järvinen H., Kanukhina A., Konstantinov P., Kotlyakov V., Kieloaho A.-J., Komarov A.S., Kujansuu J., Kukkonen I., Kyrö E., Laaksonen A., Laurila T., Lihavainen H., Lisitzin A., Mahura A., Makshtas A., Mareev E., Mazon S., Matishov D., Melnikov V., Mikhailov E., Moisseev D., Nigmatulin R., Noe S.M., Ojala A., Pihlatie M., Popovicheva O., Pumpanen J., Regerand T., Repina I., Shcherbinin A., Shevchenko V., Sipilä M., Skorokhod A., Spracklen D.V., Su H., Subetto D.A., Sun J., Terzhevik A.Y., Timofeyev Y., Troitskaya Y., Tynkkynen V.-P., Kharuk V.I., Zaytseva N., Zhang J., Viisanen Y., Vesala T., Hari P., Hansson H.C., Matvienko G.G., Kasimov N.S., Guo H., Bondur V., Zilitinkevich S. and Kulmala M. (2016). Pan-Eurasian Experiment (PEEX): Towards holistic understanding of the feedbacks and interactions in the land–atmosphere–ocean–society continuum in the Northern Eurasian region. Atmospheric Chemistry and Physics  16, 14421-14461, doi:10.5194/acp-16-14421-2016. http://www.atmos-chem-phys.net/16/14421/2016/acp-16-14421-2016.pdf

Mammarella I., Peltola O., Nordbo A., Järvi L. and Rannik Ü. (2016). Quantifying the uncertainty of eddy covariance fluxes due to the use of different software packages and combinations of processing steps in two contrasting ecosystems. Atmospheric Measurement Techniques 9, 4915-4933, doi: 10.5194/amt-9-4915-2016. http://www.atmos-meas-tech.net/9/4915/2016/

Glazunov A., Rannik Ü, Stepanenko V., Lykosov V., Auvinen M., Vesala T. and Mammarella I. (2016). Large-eddy simulation and stochastic modeling of Lagrangian particles for footprint determination in the stable boundary layer. Geoscientific Model Development 9, 2925-2949. http://www.geosci-model-dev.net/9/2925/2016/

Rantala P., Järvi L., Taipale R., Laurila T.K., Patokoski J., Kajos M.K., Kurppa M., Haapanala S., Siivola E., Ruuskanen T.M. and Rinne J. (2016). Anthropogenic and biogenic influence on VOC fluxes at an urban background site in Helsinki, Finland. Atmospheric Chemistry and Physics 16, 7981-8007, doi: 10.5194/acp-16-7981-2016. http://www.atmos-chem-phys.net/16/7981/2016/acp-16-7981-2016.pdf.  

Riikonen A., Järvi L. and Nikinmaa E. (2016). Environmental and crown related factors affecting street tree transpiration in Helsinki, Finland. Urban Ecosystems 1-23, doi:10.1007/s11252-016-0561-1, http://link.springer.com/article/10.1007/s11252-016-0561-1.

Petäjä T., Järvi L., Kerminen V.-M., Ding A., Sun J., Nie W., Kujansuu J., Virkkula A., Yang X., Fu C., Zilitinkevich S. and Kulmala M. (2016). Enhanced air pollution via aerosol-boundary layer feedback in China. Scientific Reports 6, 18998, doi: 10.1038/srep18998. http://www.nature.com/articles/srep18998.

2015

Karsisto P., Fortelius C., Demuzere M., Grimmond C.S.B., Oleson K., Kouznetsov R., Masson V. and Järvi L. (2015). Seasonal surface urban energy balance and wintertime stability simulated using three land-surface models in the high-latitude city Helsinki. Quarterly Journal of Royal Meteorological Society 142 (694), 401-417, doi: 10.1002/qj.2659. http://onlinelibrary.wiley.com/doi/10.1002/qj.2659/abstract. 

Kurppa M., Nordbo A., Haapanala S. and Järvi L. (2015). Effect of seasonal variability and land use on particle number and CO2 exchange in Helsinki, Finland. Urban Climate 13, 94 - 109, doi:10.1016/j.uclim.2015.07.006. http://www.sciencedirect.com/science/article/pii/S2212095515300122#

Hellsten A., Luukkonen S.M., Steinfeld G., Kanani-Suhring F., Markkanen T., Järvi L., Vesala T. and Raasch S. (2015). Footprint evaluation for flux and concentration measurements for an urban-like canopy with coupled Lagrangian stochastic and large-eddy simulation models. Boundary-Layer Meteorology 157 (2) 191–217, DOI:10.1007/s10546-015-0062-4. http://www.springer.com/-/1/AU6tjuiQxIV6JZQW6Tky

Nordbo A., Karsisto P., Matikainen L., Wood C.R. and Järvi L. (2015). Urban surface cover determined with airborne lidar at 2 m resolution - implications for surface energy balance modelling. Urban Climate 13, 52 - 72. doi:10.1016/j.uclim.2015.05.004

2014

Järvi L., Grimmond C.S.B., Taka M., Nordbo A., Setälä H. and Strachan I. (2014). Developments of the Surface Urban Energy and Water balance Scheme (SUEWS) for cold climate cities. Geoscientific Model Development 7, 1691-1711, http://www.geosci-model-dev.net/7/1691/2014/gmd-7-1691-2014.pdf.

Järvi L., Nordbo A., Rannik Ü., Haapanala S., Riikonen A., Mammarella I., Pihlatie M. and Vesala T. (2014). Spatial variability of urban nitrous oxide fluxes measured using the eddy-covariance. Boreal Environmental Research 19,108-121, http://www.borenv.net/BER/pdfs/preprints/FCOE/JarviFCOE.pdf.

2013

Wood C.R., Gierens R., Kouznetsov R.D., Nordbo A., Järvi L. and Kukkonen J. (2013). On the temperature structure parameter and sensible heat flux over Helsinki from sonic anemometry and scintillometry. Journal of Atmospheric and Oceanic Technology, http://dx.doi.org/10.1175/JTECH-D-12-00209.1.

Ripamonti G., Järvi L., Mølgaard, M., Hussein T.,Nordbo A. and Hämeri K. (2013). The effect of local sources on aerosol particle number size distribution, concentrations and fluxes in Helsinki, Finland. Tellus B 65, 19786, http://dx.doi.org/10.3402/tellusb.v65i0.19786.

Wood C.R., Järvi L., Kouznetsov R., Nordbo A., Joffre S., Drebs A., Vihma T., Hirsikko A., Suomi I., Fortelius C., O’Connor E., Moiseev D., Haapanala S., Moilanen J., Kangas M., Karppinen A., Vesala T. and Kukkonen J. (2013). An overview on the Urban Boundary-layer Atmosphere Network in Helsinki. Bulletin of the American Meteorological Society, doi: http://dx.doi.org/10.1175/BAMS-D-12-00146.1.

Nordbo A., Järvi L., Haapanala S., Moilanen J. and Vesala T. (2013). Intra-city variation in urban morphology and turbulence structure in Helsinki, Finland. Boundary-Layer Meteorology 146 (3), 469-496, http://dx.doi.org/10.3402/tellusb.v64i0.18184

2012

Järvi L., Nordbo A., Junninen H., Riikonen A., Moilanen J., Nikinmaa E. and Vesala T. (2012). Seasonal and annual variation of carbon dioxide surface fluxes in Helsinki, Finland, in 2006-2010. Atmospheric Chemistry and Physics 12, 8475-8489, doi: 10.5194/acp-12-8475-2012.

Nordbo A., Järvi L., Haapanala S., Wood C. and Vesala T. (2012). Fraction of natural area as main predictor of net CO2 emissions from cities. Geophysical Research Letters 39, L20802, doi: 10.1029/2012GL053087.

Liu H. Z., Feng J. W., Järvi L., and Vesala T. (2012). Four-year (2006 - 2009) eddy covariance measurements of CO2 flux over an urban area in Beijing. Atmospheric Chemistry and Physics 12, 7881-7892, doi: 10.5194/acp-12-7881-2012.

Nordbo A., Järvi L. and Vesala T. (2012). Revised eddy covariance flux calculation methodologies – effect on urban energy balance. Tellus B 64, 18184, doi: 10.3402/tellusb.v64i0.18184.

2011

Järvi L., Grimmond, C.S.B. and Christen A. (2011). The Surface Urban Energy and Water Balance Scheme (SUEWS): Evaluation in Los Angeles and Vancouver. Journal of Hydrology 411, 219-237, doi: 10.1016/j.jhydrol.2011.10.001.

Loridan T., Grimmond C. S. B., Offerle B. D., Young D. T., Smith T., Järvi L. and Lindberg F. (2011). Local-scale Urban Meteorological Parameterization Scheme (LUMPS): Longwave radiation parameterization and seasonality related developments. Journal of Applied Meteorology and Climatology 50, 185-202. doi: 10.1175/2010JAMC2474.1.

 2010

Koskinen J.T., Poutiainen J., Schultz D.M., Joffre S., Koistinen J., Saltikoff E., Gregow E., Turtiainen H., Dabberdt W.F., Damski J., Eresmaa N., Göke S., Hyvärinen O., Järvi L., Karppinen A., Kotro J., Kuitunen T., Kukkonen J., Kulmala M. Moisseev D., Nurmi P., Pohjola H., Pylkkö P., Vesala T. and Viisanen Y. (2010). The Helsinki Testbed: A mesoscale measurement, research, and service platform. Bulletin of the American Meteorological Society 92, 325-342, doi: 10.1175/2010BAMS2878.1.

2009

Järvi L., Rannik Ü., Mammarella I., Sogachev A., Aalto P.P., Keronen P., Siivola E., Kulmala M. and Vesala T. (2009). Annual particle flux observations over a heterogeneous urban area. Atmospheric Chemistry and Physics 9, 7847-7856, doi: 10.5194/acp-9-7847-2009.

Järvi L., Mammarella I., Eugster W., Ibrom A., Siivola E., Dellwik E., Keronen P., Burba G. and Vesala T. (2009). Comparison of net CO2 fluxes measured with open- and closed-path infrared gas analyzers in urban complex environment. Boreal Environmental Research 14 (Suppl. A), 499-514.

Järvi L., Hannuniemi H., Hussein T., Junninen H., Aalto P. P., Hillamo R., Mäkelä T., Keronen P., Siivola E., Vesala T. and Kulmala M. (2009). The urban measurement station SMEAR III: Continuous monitoring of air pollution and surface-atmosphere interactions in Helsinki, Finland. Boreal Environmental Research 14 (Suppl. A), 86-109.

2008

Vesala T., Järvi L., Launiainen S., Sogachev A., Rannik Ü., Mammarella I., Siivola E., Keronen P., Rinne J., Riikonen A. and Nikinmaa E. (2008). Surface-atmosphere interactions over complex urban terrain in Helsinki, Finland. Tellus B 60, 188-199, doi: 10.1111/j.1600-0889.2007.00312.x.

List of recent (last two years) conference presentations

Kurppa M. et al. Including Aerosol Dynamic Processes in LES: Evaluation and Application, American Meteorological Society 100th Annual Meeting, 11-16.1.2020, Boston, US

Järvi L. et al. Sources and sinks of local-scale CO2 fluxes in a Nordic city of Helsinki. 2nd Nordic ICOS Conference, 24-25.10.2019, Gothenburg, Sweden

Järvi L. et al. Spatial variability of local-scale CO2 emissions in Helsinki. European Meteorological Society Annual Meeting, 9-13.9.2019, Copenhagen, Denmark

Kurppa M. et al. Combining urban fluid dynamics and aerosol modelling. European Aerosol Conference, 25-30.8.2019, Gothenburg, Sweden

Kurppa M. et al. Exploiting Helsinki region open data in fluid dynamics modelling: Support for sustainable urban planning. Sustainability Science Days, 9-10.5.2019, Helsinki, Finland

Havu M. et al. Impact of different planning alternatives to minimise carbon dioxide emissions in central Helsinki. Sustainability Science Days, 9-10.5.2019, Helsinki, Finland

Järvi L. et al. Surface exchange and vertical transport of aerosols, ACTRIS-2 Final General Meeting, 1-4.4.2019, Darmstadt, Germany

Järvi L. et al. What have we so far learned from urban eddy covariance observations from Helsinki. 20th Anniversary of Hyytiälä EUROFLUX workshop. 10-14.12.2018, Juupajoki, Finland

Kokkonen T. et al. How can the urban climate service tool UMEP-SUEWS be used to support urban planning? Smart Cities in Smar Regions, 26-27.9.2018, Lahti, Finland

Havu M. et al. Impact of different urban planning choices on the spatial variability of carbon dioxide exchange in Helsinki. Smart Cities in Smart Regions, 26-27.9.2018, Lahti, Finland

Kokkonen T. et al. Impact of haze on urban energy and water balance in Beijing. 10th International Conference on Urban Climate, 6-10.8.2018, New York, USA

Kurppa M. et al. Novel LES-based high-resolution air quality model: city structures as modifiers of flow and dispersion.  10th International Conference on Urban Climate, 6-10.8.2018, New York, USA

Auvinen M. et al. Sensitivity of LES-Resolved Local Scale Turbulence to the Level of Detail of Urban Surface Models. 10th International Conference on Urban Climate, 6-10.8.2018, New York, USA

Järvi L. et al. Impact of different planning alternatives on net carbon dioxide emissions in Helsinki, Finland. 10th International Conference on Urban Climate, 6-10.8.2018, New York, USA