Publications in International Journals:

• P.Kassomenos, H.A.Flocas, A.N.Skouloudis, S.Lykoudis, V.Asimakopoulos and M.Petrakis, (1998), Relationship of air quality indicators and synoptic scale circulation at 850hPa over Athens during 1983-1995, Environmental Technology, Vol.19, 1, pp. 13-24.
• S.Koloutsou-Vakakis, C.G.Helmis, V.Assimakopoulos and H.Gusten, (2001), Middle and lower troposphere aerosol characteristics and ozone concentrations over northwestern Greece during STAAARTE 1997, Atmospheric Environment, Vol 35, 8, pp. 1517-1526.
• Helmis C.G., Moussiopoulos N., Flocas H.A., Sahm P., Assimakopoulos V.D., Naneris C. and Maheras P., (2003), Estimation of transboundary air pollution on the basis of synoptic scale weather types, International Journal of Climatology, Vol. 23, 4, pp. 405-416.
• Assimakopoulos V.D., ApSimon H.M. and Moussiopoulos N. (2003), A Numerical Study of Atmospheric Pollutant Dispersion in Different Two-Dimensional Street Canyon Configurations, Atmospheric Environment, Vol. 37, 29, pp. 4037-4049.
• Assimakopoulos V.D. and Helmis C.G. (2003), Sodar mixing height estimates and air pollution characteristics over a big city, Environmental Technology, Vol. 24, 10, pp. 1191-1200.
• Flocas H.A., Assimakopoulos V.D, Helmis C.G and Gusten H. (2003), VOC and O3 distributions over a densely populated area, Journal of Applied Meteorology, Vol. 42, 12, pp. 1799-1810.
• Assimakopoulos V.D. and Helmis C.G. (2004), On the study of a sick building-The case of the Athens Air Traffic Control Tower, Journal of Energy and Buildings, Vol. 36, 1, pp. 15-22.
• Moussiopoulos N., Helmis C.G., Flocas H.A., Louka P., Assimakopoulos V.D., Naneris C., and Sahm P., (2004), A modelling method for estimating transboundary air pollution in south-eastern Europe, Journal of Environmental Modelling and Software, Vol. 19, 6, pp. 549-558.
• Halios C.H., Assimakopoulos V.D., Helmis C.G. and Flocas H.A. (2005), Investigating Cigarette-Smoke Indoor Pollution in a Controlled Environment, Science of the Total Environment, Vol. 337, 1-3, pp. 183-190.
• Protonotariou, A., Bossioli, E., Athanasopoulou, E., Dandou, A., Tombrou, M., Flocas, H.A., Helmis, C.G., Assimakopoulos, V.D. (2005), Evaluation of CALPUFF modelling system performance: An application over the Greater Athens Area, Greece, International Journal of Environment and Pollution, 24 (1-4), pp. 22-35.
• Assimakopoulos V.D., Georgakis C. and Santamouris M. (2006), “Experimental validation of a computational fluid dynamics code to predict the wind speed in street canyons for passive cooling purposes, Solar Energy, Vol. 80, 4, pp. 423-434.
• Helena A. Flocas, Vasiliki D. Assimakopoulos and Costas G. Helmis (2006), An experimental study of aerosol distribution over a Mediterranean urban area, Science of The Total Environment, Vol. 367, 2-3, pp 872-887.
• C.P. Jacovides, F.S. Tymvios, V.D. Assimakopoulos and N.A. Kaltsounides (2006), Comparative study of various correlations in estimating hourly diffuse fraction of global solar radiation, Renewable Energy, Vol. 31, 15, pp. 2492-2504.
• C.P. Jacovides, V.D. Assimakopoulos, F.S. Tymvios, K. Theophilou and D.N. Asimakopoulos (2006), Solar global UV (280–380 nm) radiation and its relationship with solar global radiation measured on the island of Cyprus, Energy, Vol. 31, 14, pp. 2728-2738.
• C.P. Jacovides, F.S. Tymvios, V.D. Assimakopoulos and N.A. Kaltsounides (2007), The dependence of global and diffuse PAR radiation components on sky conditions at Athens, Greece, Agricultural and Forest Meteorology, Volume 143, Issues 3-4, pp. 277-287.
• Helmis, C.G., Tzoutzas, J., Flocas, H.A., Halios, C.H., Stathopoulou, O.I., Assimakopoulos V.D., Panis, V., Apostolatou, M., Sgouros, G. and Adam, E. (2007), Indoor Air Quality in a Dentistry Clinic, Science of The Total Environment, Volume 377, 2-3, pp. 349-365.
• M.Tombrou, A.Dandou, C.Helmis, E.Akylas, G.Angelopoulos, H.Flocas, V.Assimakopoulos and N.Soulakellis (2007), Model evaluation of the atmospheric boundary layer and mixed-layer evolution, Boundary-Layer Meteorology 124 (1), pp. 61-79.
• I. Livada and V.D. Assimakopoulos (2007), Spatial and temporal analysis of drought in Greece using the Standardised Precipitation Index (SPI), Theoretical and Applied Climatology, 89 (3-4), pp. 143-153.
• Assimakopoulos, V.D., Stathopoulou, O.I., Halios, C., Helmis, C.G. (2008) Numerical investigation of indoor environmental conditions in an office, International Journal of Ventilation, vol. 6, (4), pp. 315-326.
• O.I. Stathopoulou, V.D. Assimakopoulos, H.A. Flocas and C.G. Helmis (2008), An experimental study of air quality inside large athletic halls, Building and Environment, Volume 43, (5), Pages 834-848.
• M. Santamouris, A. Synnefa, M. Asssimakopoulos, I. Livada, K. Pavlou, M. Papaglastra, N. Gaitani, D. Kolokotsa, Assimakopoulos, V. (2008), Experimental investigation of the air flow and indoor carbon dioxide concentration in classrooms with intermittent natural ventilation, Energy and Buildings, vol. 40 (10), pp. 1833-1843.
• O.I. Stathopoulou and V.D. Assimakopoulos (2008), Numerical study of the indoor environmental conditions of a large athletic hall using the CFD code PHOENICS, Environmental Modeling and Assessment, vol. 13, (3), pp. 449-458.
• Helmis, C.G., Tzoutzas, J., Flocas, H.A., Halios, C.H., Assimakopoulos, V.D., Stathopoulou, O.I., Panis, V., Apostolatou, M., (2008), Emissions of total volatile organic compounds and indoor environment assessment in dental clinics in Athens, Greece, International Dental Journal 58 (5), pp. 269-278.
• C.G. Helmis, V.D. Assimakopoulos, H.A. Flocas, O.I. Stathopoulou, G Sgouros and M. Hatzaki, (2009), Indoor air quality assessment in the Air Traffic Control Tower of the Athens International Airport, Greece, Environmental Monitoring and Assessment, vol.148,(1-4), pp.47.
• C.H.Halios, C.Helmis, K.Eleftheriadis, H.A.Flocas and V.D.Assimakopoulos (2009), A comparative study of the main mechanisms controlling indoor air pollution in residential non-smoking microenvironments, Water, Air, and Soil Pollution 204 (1-4), pp. 333-350.
• Nezis A.A., Angelidis D.I., Assimakopoulos V.D., and Bergeles G.C. (2010), On the wind flow patterns under neutral and unstable conditions in an urban area, International Journal of Environment and Pollution, accepted for publication.
  

Books:

• Assimakopoulos V., Urban pollution, In: Book on Energy and Climate in Urban Environment, pp. 137-144, James and James, 2001, London, UK.

Refereed Papers in Conference Proceedings:

• Assimakopoulos V.D., P.Kassomenos and I.Gee, (1997), Studying statistical relations of air pollution levels from the stations of the monitoring network of Athens, 5th International Conference of Environmental Science and Technology, Molivos Lesvou, Greece-Sept. 1997, Vol.A, pp.209-217.
• Moussiopoulos N., Theodoridis G. and Assimakopoulos V. (1999), The influence of fast chemistry on the composition of NOx in the emission input to atmospheric dispersion models, Proceedings from the EUROTRAC-2 Symposium 98 (P.M. Borrell and P. Borrell, eds), WIT press, Computational Mechanics Publications, Southampton, Vol. 2, 777-781.
• Theodoridis G., Moussiopoulos N., Assimakopoulos V., Ehrhard J., Khatib I. and Kunz R. (1999), Multiscale air pollution modelling in urban areas, Proceedings of the 3rd International Exhibition and Conference on Environmental Technology (HELECO 99), Thessaloniki, Greece, 3-6 June 1999, Vol. 1, pp.512-219.
• Assimakopoulos V., ApSimon H. and Moussiopoulos N. (1999), Effects of street canyon geometry on the dispersion characteristics of pollutants within urban areas, (Abstract) Proceedings of the 3rd SATURN Workshop, Aveiro, Portugal, 23-24 August 1999, pp.3.
• Assimakopoulos V., Theodoridis G., Moussiopoulos N. and ApSimon H. (1999), A numerical study of the influence of building geometry on the wind and dispersion characteristics in urban areas, Proceedings of the 6th International Conference of Environmental Science and Technology, Pythagoreion, Samos, Greece, 30/8/99-2/9/99 Vol. 1, 200-207.
• Assimakopoulos V., Ehrhard J., Moussiopoulos N., Theodoridis G. and ApSimon H.M. (1999), Assessing the influence of near wall treatment on the wind and dispersion characteristics in urban areas, Proceedings of the 6th International Conference with Atmospheric Dispersion Modelling for Regulatory Purposes, CORIA, Rouen, France, 11-14 October 1999, 227-228.
• Assimakopoulos V., Sahm P., Apsimon H. and Moussiopoulos N., (2000) Simulation of microscale flow and chemical reactions in urban areas, Proceedings from the EUROTRAC-2 Symposium 2000, (P.M.Midgley,M.Reuther and M.Williams Eds.), Springer-Verlag, Berlin, Hedelber, 2001, pp.1096-1100.
• Assimakopoulos V., ApSimon H., Sahm P. and Moussiopoulos N. (2000), Effects of street canyon geometry on the dispersion characteristics in urban areas, Proceedings of the 16th IMACS World Congress, Lausanne, Switzerland, 21-25 August 2000, (in press).
• Flocas H.A., Assimakopoulos V.D., Helmis C.G., Koloutsou-Vakakis S. and Petrakis M., (2000), The Greater Athens STAAARTE experiment, Proceedings of the 5th Hellenic Scientific Conference on Meteorology, Climatology and Atmospheric Physics, EMTE, Thessaloniki, Greece, 28-30 September 2000, pp. 121-127.
• Assimakopoulos V., Moussiopoulos N. and ApSimon H. (2001), Three-dimensional numerical modelling of air flow in a finite array of square buildings, Proceedings of the 7th International Conference on Harmonisation within Atmospheric Dispersion Modelling for Regulatory Purposes, Belgirate, Italy, 28-31 May 2001, in press.
• Assimakopoulos V., Sahm P., Apsimon H. and Moussiopoulos N. (2001), Numerical modelling of dispersion of atmospheric pollution in and above urban canopies, Proceedings of the 7th Conference on Environmental Science and Technology, Ermoupolis, Syros island, 3-6 September 2001, Vol.A, pp.69-75.
• Helmis C.G., Flocas H.A., Kalogiros J. and Assimakopoulos V.D., (2001), Background measurements related to transboundary air pollution over Greece, Proceedings from the 7th Conference on Environmental Science and Technology, Ermoupolis, Syros island, Greece-Sept. 2001, Vol.A, pp 325-332.
• Assimakopoulos V.D., Flocas H.A., Helmis C.G., Vakakis-Koloutsou S. and Petrakis M. (2001), Airborne measurements of ozone over the Greater Athens Area, Proceedings from the 7th Conference on Environmental Science and Technology, Ermoupolis, Syros island, Greece-Sept. 2001, Vol.A, pp 61-68.
• Assimakopoulos V., Louka P., Moussiopoulos N., ApSimon H.M. and Sahm P. (2002), Evaluation of the microscale model MIMO with wind-tunnel measurements, Proceedings of the EUROTRAC-2 Symposium 2002, Garmisch-Partenkirchen, Germany, 11-15 March, in press.
• Assimakopoulos V., ApSimon H.M., Moussiopoulos N. and Sahm P. (2002), A preliminary Eulerian modelling study of dispersion of NOx emissions over London, Proceedings of the EUROTRAC-2 Symposium 2002, Garmisch-Partenkirchen, Germany, 11-15 March, in press.
• Moussiopoulos N., Flocas H.A., Sahm P., Naneris C., Assimakopoulos V.D., Helmis CG. and Louka P. (2002), A modelling method for estimating transboundary air pollution in South-Eastern Europe, Proceedings of the 11th International Symposium of Transport and Air Pollution Grazer Congress, 9-21 June 2002, Austria, in press.
• Assimakopoulos V.D. and Helmis C.G. (2002), Investigating correlations between urban air pollution patterns and ABL characteristics produced by a SODAR-RASS profilometer, Proceedings of the 24th International Geoscience and Remote Sensing Symposium, June 24-28, Toronto, Canada, in CD-ROM.
• C.H. Halios, C.G. Helmis, H.A. Flocas, V.D. Assimakopoulos and K. Eleftheriadis (2003), A Statistical Analysis of Aerosol Precursors and Black Carbon in Indoor and Outdoor Environments at a Typical Residential Apartment, Proceedings of the European Aerosol Conference, 31/8-5/9 2003, Madrid, Spain, Vol. I, pp. S385-S386.
• Flocas H.A., Assimakopoulos V.D. and Helmis C.G. (2003), On the distribution of aerosol over the greater Athens area, Proceedings of the 8th International Conference on Environmental Science and Technology, Lemnos island, Greece, 8-10 September, 2003, pp. 224-231.
• Halios C.H., Helmis C.G., Assimakopoulos V.D., Flocas H.A. and Petrakis M. (2003), Studying indoor air quality in a typical residential apartment in Athens, Greece, Proceedings of the 8th International Conference on Environmental Science and Technology, Lemnos island, Greece, 8-10 September, 2003, pp.286-293.
• Protonotariou, A., E. Bossioli , E. Athanasopoulou, A. Dandou, M. Tombrou, V. D. Assimakopoulos, H.A. Flocas and C. G. Helmis, Validation and inter-comparison of Calpuff regulatory model to Eulerian models and measurements. An application over the Greater Athens Area (GAA), Greece, 9th Conference on Harmonisation within Atmospheric Dispersion Modelling for Regulatory Purposes Garmisch-Partenkirchen, Germany, June 1-4 2004, in CD-ROM.
• Flocas, H.A., Assimakopoulos, V.D. and Helmis, C.G., On the effect of relative humidity on the aerosol size distributions over the Greater Athens Area, Greece, European Aerosol Conference, EAC 2004, Budapest, 6-10 September, Vol. 1, pp. 125-126.
• Assimakopoulos, V.D., Helmis, C.G., Stathopoulou, O., Flocas, H.A. and Pavlopoulos, N., Indoor PM10/PM2.5 measurements at the Hellinikon Airport Traffic Control Tower-Athens, Greece, European Aerosol Conference, EAC 2004, Budapest, 6-10 September 2004, Vol. 1, pp 85-86.
• Stathopoulou O., Assimakopoulos, V.D., Halios, C.G., Helmis, C.G., Flocas, H.A., Indoor air quality in athletic halls, European Aerosol Conference, EAC 2004, Budapest, 6-10 September 2004, Vol. 1, pp. 713-714.
• Halios, C.H., Helmis, C.G., Assimakopoulos, V.D., Hermansen, O., Elefteriadis, K., Flocas, H.A., Indoor black carbon and aerosol precursors in three typical residential apartments in Athens, Greece, European Aerosol Conference, EAC 2004, Budapest, 6-10 September 2004, Vol. 2, pp. 745-746.
• O.I. Stathopoulou and V.D. Assimakopoulos, Indoor Air Quality Study of a Large Athletic Hall with the Aid of CFD Code PHOENICS, Proc of the 5th Int. Conf. on Urban Air Quality, Eds. Ranjeet S Sokhi, Millan M Millan and Nicolas Moussiopoulos, Valencia - Spain, 29 – 31 March 2005 (poster).
• V.D. Assimakopoulos, C. Georgakis, M. Santamouris and N. Moussiopoulos, COMPARING COMPUTATIONAL FLUID DYNAMICS CODE RESULTS WITH REAL TIME MEASUREMENTS FROM A TYPICAL DEEP STREET CANYON IN ATHENS – GREECE, Proc of the 5th Int. Conf. on Urban air quality, Eds. Ranjeet S Sokhi, Millan M Millan and Nicolas Moussiopoulos, Valencia - Spain, 29 – 31 March 2005 (poster).
• V.D. Assimakopoulos, C.Georgakis and M.Santamouris, Comparison of computed and measured wind fields within street canyons, Proceedings of the 1st International Conference “Passive and Low Energy Cooling for the Built Environment”, Editor M. Santamouris, 19-21 May 2005, Santorini, Greece, pp. 1027-1032.
• O.I. Stathopoulou, V.D. Assimakopoulos, C.G. Helmis and H.A. Flocas, Indoor Air Quality Study of Different Athletic Halls in Greece, Proc. of the 9th Int. Conf. on Environmental Science and Technology, Eds. T.D. Lekkas, Rhodes – Greece, 1 – 3 September 2005, pp. B889 – B894.
• V.D. Assimakopoulos, C.G. Helmis and O.I. Stathopoulou, Indoor Air Quality in the Old and New Air Traffic Control Towers of the Athens International Airport, Proc. of the 9th Int. Conf. on Environmental Science and Technology, Eds. T.D. Lekkas, Rhodes – Greece, 1 – 3 September 2005, pp. A124 – A131.
• O.I. Stathopoulou and V.D. Assimakopoulos, Application of PHOENICS to Athletic Halls with HVAC Ventilation, Proc. of the 26th AIVC Conference on Ventilation in relation to the energy performance of buildings, IEA, Brussels - Belgium, 21 – 23 September 2005.
• O.I. Stathopoulou and V.D. Assimakopoulos, Indoor Environmental Conditions of Athletic Halls: Experimental and Numerical Investigation, Air Pollution XIV, WIT Transactions on Ecology and the Environment, Eds. J.W.S. Longhurst & C.A. Brebbia, Vol. 86, 2006, WIT Press, p. 345-353 (Proc. of the 14th Int. Conf. on Modelling, Monitoring and Management of Air Pollution, The New Forest - UK, 22 – 24 May 2006).
• Helmis, C.G., Flocas, H.A., Tzoutzas, J., Assimakopoulos, V.D., Panis, V., Sgouros, G., Apostolatou, M., (2006) Indoor TVOCs and CO2 levels in selected clinics of the Athens Dentistry School, Greece, WIT Transactions on Ecology and the Environment, Eds. J.W.S. Longhurst & C.A. Brebbia, Vol. 86, 2006, WIT Press, pp. 375-384 (Proc. of the 14th Int. Conf. on Modelling, Monitoring and Management of Air Pollution, The New Forest - UK, 22 – 24 May 2006).
• O.I. Stathopoulou, V.D. Assimakopoulos and H.A. Flocas, Investigating Environmental Conditions in Dentistry Clinics using Computational Fluid Dynamics, Proc. of the Int. Conf. on Protection and restoration of the environment VIII, Chania – Crete – Greece, 3 – 7 July 2006.
• H. I. Alexandropoulos, D. I. Angelidis, V. D. Asimakopoulos and G. C. Bergeles, WIND TUNNEL MEASUREMENTS AND NUMERICAL SIMULATION OF BUILDING BLOCKS IN AN URBAN AREA, 2nd International Conference From Scientific Computing to Computational Engineering, 2nd IC-SCCE, Athens, 5-8 July, 2006.
• V.D. Assimakopoulos, D. Saraga, C.G. Helmis, O.I. Stathopoulou and C.H. Halios, An experimental study of the indoor air quality in areas of different use, Proceedings of the 10th International Conference on Environmental Science and Technology, Kos Island, Greece, 5-7 September 2007, pp. A93-A100, (in CD ROM).
• A.A. Nezis, D.I. Angelidis, V.D. Assimakopoulos and G.C. Bergeles, On the wind flow patterns under neutral and unstable conditions in an urban area, 11th International Conference on Harmonisation within Atmospheric Dispersion Modelling for Regulatory Purposes, Cavtat, Croatia, October 2008, pp. 643-647.
• Nezis, V.D. Assimakopoulos and G.Bergeles, Mean and turbulent characteristics of the boundary layer under neutral and unstable conditions, Proceedings of the 29th AIVC Conference in 2008, 14-16 October, Kyoto, Japan, Vol. 1, pp. 129-134.
  

Reports:

• Kassomenos P., Asimakopoulos D.N., Lykoudis S., Assimakopoulos V.D., Flocas H.A. and Petrakis M., (2000), Short term forecasting of air quality status in metropolitan areas based on several monitoring stations, Technical Report, prepared for JRC, Ispra, Italy.
• Asimakopoulos D., Argyriou A., Konstantinopoulos G., Assimakopoulos V.D., Serafimov V., Todorova M. and Nikolova E., (2000), Design of an integrated system for continuous monitoring and reduction of VOCs emissions from the use of organic solvents and the transportation of petrol in Bulgaria, Program DAC, Technical Report prepared for the Bulgaria Environment Agency and the Ministry of the Environment Planning and Public Works of Greece in 6 volumes.
• Moussiopoulos N., Sahm P., Ehrhard J. and Assimakopoulos V. (2001), Development and Evaluation of a Zooming Air Pollution Model for European Urban Studies (ZEUS), SATURN Annual Report 1999, 84-89, International Scientific Secretariat, GSF-Forschungszentrum fuer Umwelt und Gesundheit GmbH, Munich, March 2001.
• Asimakopoulos D.N, Helmis C.G., Flokas H.A. and Assimakopoulos V.D. (2002), Periodical Environmental Report for the Air Quality Sector of the Athens International Airport, Technical Report prepared for the Environmental Services of the AIA.
• Flokas H.A., Hatzis H.N. and Assimakopoulos V.D. (2002), Periodical Environmental Report for the Air Quality Sector of the Athens International Airport, Technical Report prepared for the Environmental Services of the AIA.
• Moussiopoulos N, Assimakopoulos, V.D. and Arvanitis, T. (2002) Application of the mathematical modelling system MEMO-MARS/MUSE for the simulation of dispersion of particulates in the Greater Thessaloniki Area, Report prepared and submitted to the General Secretariat of Research and Technology.
• Helmis C.G., Flocas H.A., Assimakopoulos V.D., Stathopoulou O., Halios C., Michopoulos J., Argyriou A., Balaras K., Lagoudi A., Spanos J. (2002), Study of the indoor air quality of the ACTC building complex in the Hellinicon area, Report prepared and submitted to the Civil Aviation Authority, Department of Environment.
• Helmis C.G., Flocas H.A., Assimakopoulos V.D., Stathopoulou O., Halios C., Michopoulos J., Petrakis M., Psiloglou V. and Lykoudis S., (2003), Study on the indoor air quality of closed stadiums in the Greater Athens Area, Report prepared and submitted for the General Secretariat of Sports.
  

Other Publications:

• Flocas H.A., Assimakopoulos V.D., Helmis C.G. and Gusten H. 2004: Chemical Distributions over Athens, Bulletin of the American Meteorological Society, 85, 1, pp. 34-35.