Publications and presentations

2018

Oosterwijk A., Henzing B. and Järvi L. (2018). On the application of spectral corrections to particle flux measurements. In print in Environmental Science: Nano.

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 Discussions, doi: 10.5194/amt-2018-89.

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., 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

 

Kokkonen T. et al. (2018). 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. (2018). 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. (2018). 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. (2018). 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.

Järvi L. et al.: Simulating the effect of urban planning choices on the spatial variability of net carbon dioxide exchange Helsinki, Finland. Abstracts of the EGU General Assembly, 3.-13.4.2018, Vienna, Austria.

Auvinen M. et al.: Towards resolved urban micrometeorology with LES. AtMath Annual seminar, 20-24.11.2017, Levi, Finland

Kurppa M. et al.: Assessing ventilation and air quality in real city blocks using LES. European Aerosol Conference 2017, 27.8-1.9.2017, Zürich, Switzerland, TN207N076

Kokkonen T. et al. : Changes in the surface water balance of neighborhoods in Vancouver, Canada undergoing urbanization and subsequent densification. 14th IWA/IAHR Conference on Urban Drainage, 10-15.9.2017, Prague, Czech Republic.

Järvi L. et al.: Urban vegetation as carbon reducing ecosystem service in Helsinki, Green infrastructure: Nature based solutions for sustainable and resilient cities, Orvieto, Italy, 4-7 April 2017

Järvi L. et al.: Impact of surface cover and climatic conditions on the urban surface energy and water balances, AGU, 12-16 December 2016, San Francisco, USA

Kurppa M. et al.: Considering the aerodynamic impact of vegetation on urban air flow and pollutant dispersion in LES modelling. Seminar Impacts of urban vegetation on air pollution, 16 November 2016, Helsinki, Finland

Auvinen M. et al.: Towards Improved Interpretation of Urban Measurements; Evaluation of Footprints in a Real City Environment with LES. 22nd Symposium on Boundary Layers and Turbulence, 20–24 June 2016, Salt Lake City, Utah, USA

 

Järvi L.: Breathing Helsinki - From wind tunnels to greenhouse gas exchanges. Greenhouse gases, Science and Society, 27 October 2015, Helsinki, Finland

 

Kokkonen T. et al.: Long term variability of suburban water exchanges in Vancouver. Finnish Center of Excellence annual seminar, 22-24 September 2015, Kuopio, Finland.

List of recent (lasy two years) poster presentations

Järvi L. et al.: Spatial CO2 net ecosystem exchange in Helsinki. 2nd ICOS Science Conference, 27-29 September 2016, Helsinki, Finland.

Kurppa M. et al.: Novel usage of LES in estimating scalar concentration and ventilation in urban street canyons and courtyards. 2nd ICOS Science Conference, 27-29 September 2016, Helsinki, Finland.

Auvinen M. et al.: Improving the interpretation of urban measurements via high-resolution LES modelling. 2nd ICOS Science Conference, 27-29 September 2016, Helsinki, Finland.