C. Helmis

发表

Application of Neural Networks to the Simulation of the Heat Island over Athens, Greece, Using Synoptic Types as a Predictor

Helena A. Flocas, Costas G. Helmis, M. Santamouris, 2002 .

Sea-breeze circulation and photochemical pollution in Athens, Greece

D. Deligiorgi, D. Lalas, D. Asimakopoulos, 1983 .

An experimental study of nightime air-pollutant transport over complex terrain in Athens

Costas A. Varotsos, Despina Deligiorgi, D. N. Asimakopoulos, 1992 .

Determining the ventilation and aerosol deposition rates from routine indoor-air measurements

C. Halios, C. Helmis, K. Eleftheriadis, 2013, Environmental Monitoring and Assessment.

Predicting single sided natural ventilation rates in buildings

Elena G. Dascalaki, Athanassios A. Argiriou, Mattheos Santamouris, 1995 .

A hot-wire based, research atmospheric turbulence probe : design analysis and performance

Panagiotis Papageorgas, K. H. Papadopoulos, A. T. Soilemes, 1999 .

Investigating cigarette-smoke indoor pollution in a controlled environment.

Vasiliki D Assimakopoulos, Helena A Flocas, H. Flocas, 2005, The Science of the total environment.

Numerical Investigation of Indoor Environmental Conditions in an Office

O. I. Stathopoulou, C. Halios, C. Helmis, 2008 .

K. Schäfer, A. Dandou, M. Tombrou, 2013, The Science of the total environment.

Synoptic and local scale atmospheric circulation associated with air pollution episodes in an urban Mediterranean area

H. Flocas, C. Helmis, A. Kelessis, 2009 .

PM2.5 and volatile organic compounds (VOCs) in ambient air: a focus on the effect of meteorology

J. Michopoulos, T. Maggos, C. Helmis, 2009, Environmental monitoring and assessment.

Indoor air quality in a dentistry clinic.

O. I. Stathopoulou, C. Halios, H. Flocas, 2007, The Science of the total environment.

Emissions of total volatile organic compounds and indoor environment assessment in dental clinics in Athens, Greece.

O. I. Stathopoulou, C. Halios, H. Flocas, 2008, International dental journal.

Combining experimental and theoretical methods to quantify indoor particulate emissions: application in an office microenvironment

C. Halios, C. Helmis, 2007 .

Evening and Morning Transition of Katabatic Flows

K. Papadopoulos, C. Helmis, 1999 .

A Pilot Investigation of PM Indoor/Outdoor Mass Concentration and Chemical Analysis during a Period of Extensive Fireplace Use in Athens

T. Maggos, C. Helmis, C. Vasilakos, 2015 .

Observations of Local Meteorological Variability under Large-Scale Circulation Patterns over Athens, Greece

C. Halios, D. Asimakopoulos, H. Flocas, 2018 .

Evidence of katabatic flows deduced from a 84 m meteorological tower in Athens, Greece

J. Bartzis, K. Papadopoulos, C. Helmis, 1992 .

Inland Propagation of Sea Breeze under Opposing Offshore Wind

P. Kassomenos, K. Papadopoulos, D. Asimakopoulos, 1999 .

Quantification of Environmental Tobacco Smoke Contribution on Outdoor Particulate Aliphatic and Polycyclic Aromatic Hydrocarbons

C. Helmis, M. Lianou, A. Kotronarou, 2013, Archives of Environmental Contamination and Toxicology.

EFFECT OF SAHARA DUST EVENTS ON THE DEPOSITED FRACTION OF ATMOSPHERIC AEROSOL IN THE RESPIRATORY TRACT

C. Helmis, K. Eleftheriadis, C. Housiadas, 2013 .

Examining the relative contribution of ventilation and deposition rates on indoor SO 2 concentrations

C. Halios, C. Helmis, 2007 .

Temporal variations of PM2.5 in the ambient air of a suburban site in Athens, Greece.

J. Michopoulos, T. Maggos, C. Helmis, 2005, The Science of the total environment.

Climatological evaluation of sodar recordings over complex terrain

D. Deligiorgi, D. Asimakopoulos, C. Helmis, 1994 .

Investigating the Summertime Low-Level Jet Over the East Coast of the U.S.A.: A Case Study

Qing Wang, C. Helmis, Shouping Wang, 2013, Boundary-Layer Meteorology.

P 12 . 5 FRICTIONAL DECOUPLING AND THE INERTIAL OSCILLATION IN STABLE MARINE ATMOSPHERIC BOUNDARY LAYER

Qing Wang, C. Helmis, Shouping Wang, 2006 .

Influence of background flow on evolution of saronic gulf sea breeze

K. Papadopoulos, D. Asimakopoulos, C. Helmis, 1995 .

A tethered balloon profiler system

D. Asimakopoulos, C. Helmis, P. Papageorgas, 1993 .

Mean Characteristics of the Katabatic Flow of a 1024 m High Knife Edge Mountain

J. Bartzis, D. Deligiorgi, D. Asimakopoulos, 1998 .

On the link between Indian summer monsoon and the Etesian pattern over the Aegean Sea

H. Flocas, C. Helmis, A. Bartzokas, 2013 .

Low-level jet development and the interaction of different scale physical processes

C. Helmis, G. Sgouros, 2009 .

Experimental Study of the Turbulent Structure of the Surface Marine Atmospheric Boundary Layer over the Aegean Pelagos Under Etesian Winds

C. Helmis, P. Raptis, V. Kostopoulos, 2013 .

Second‐order spectral local isotropy of the humidity and temperature fields in an urban area

C. Helmis, J. Kalogiros, 1995 .

Gas-particle concentration and characterization of sources of PAHs in the atmosphere of a suburban area in Athens, Greece.

J. Michopoulos, T. Maggos, C. Helmis, 2007, Journal of hazardous materials.

Lung deposition of fine and ultrafine particles outdoors and indoors during a cooking event and a no activity period.

D. Asimakopoulos, C. Helmis, K. Eleftheriadis, 2007, Indoor air.

A study of the near wake structure of a wind turbine comparing measurements from laboratory and full-scale experiments

Jonathan Whale, D. J. Skyner, K. H. Papadopoulos, 1996 .

Characterization of carbon fractal-like aggregates by size distribution measurements and theoretical calculations

Y. Drossinos, C. Helmis, K. Giannakopoulos, 2016 .

On the combination of air velocity and flow measurements in single sided natural ventilation configurations

Mattheos Santamouris, Elena G. Dascalaki, Athanassios A. Argiriou, 1996 .

Sodar mixing height estimates and air pollution characteristics over a Mediterranean big city

C. Helmis, V. Assimakopoulos, 2003, Environmental technology.

A layer detection and classification algorithm for sodar facsimile records

J. A. Kalogiros, Panagiotis Papageorgas, D. N. Asimakopoulos, 1995 .

Simulation of the sea breeze under opposing synoptic conditions

J. Bartzis, D. Asimakopoulos, C. Helmis, 1993 .

The Coupled Boundary Layers and Air–Sea Transfer Experiment in Low Winds

Lian Shen, Albert J. Williams, Ming Li, 2007 .

VOC and O3 Distributions over the Densely Populated Area of Greater Athens, Greece

H. Flocas, C. Helmis, V. Assimakopoulos, 2003 .

Eulerian modelling of lung deposition with sectional representation of aerosol dynamics

Christos Housiadas, Christina Mitsakou, Costas G. Helmis, 2005 .

Workplace personal exposure to respirable PM fraction: a study in sixteen indoor environments

Costas G. Helmis, Christos Vasilakos, D. Saraga, 2014 .

Strong downslope winds and application of hydraulic-like theory

D. Asimakopoulos, H. Flocas, C. Helmis, 2000 .

Studying geometric structures in meso-scale flows

C. Halios, D. Asimakopoulos, C. Helmis, 2014, Front. Environ. Sci..

Application of continuous remote sensing of mixing layer height for assessment of airport air quality

George Sgouros, Christoph Münkel, Klaus Schäfer, 2010, Remote Sensing.

A Comparative Study and Evaluation of Mixing-Height Estimation Based on Sodar-RASS, Ceilometer Data and Numerical Model Simulations

E. Bossioli, K. Schäfer, A. Dandou, 2012, Boundary-Layer Meteorology.

Model evaluation of the atmospheric boundary layer and mixed-layer evolution

E. Akylas, N. Soulakellis, A. Dandou, 2007 .

Wake measurements behind a horizontal-axis 50 kW wind turbine

Harry D. Kambezidis, D. N. Asimakopoulos, C. G. Helmis, 1990 .

On the variability of the surface environment response to synoptic forcing over complex terrain: a multivariate data analysis approach

C. Halios, D. Assimakopoulos, H. Flocas, 2012, Meteorology and Atmospheric Physics.

Air mass exchange between the athens basin and the messogia plain of Attika, Greece

Panagiotis Papageorgas, D. N. Asimakopoulos, K. H. Papadopoulos, 1997 .

Experimental Study of the Vertical Structure of the Lower Troposphere over a Small Greek Island in the Aegean Sea

H. Flocas, C. Helmis, C. Jacovides, 2002 .

Observations of sea-breeze fronts near the shoreline

Despina Deligiorgi, D. N. Asimakopoulos, Costas G. Helmis, 1987 .

Spectral density of millimeter wave amplitude scintillations in an absorption region

R. S. Cole, Costas G. Helmis, C. Helmis, 1983 .

A Quantitative Comparison of the Refractive Index Structure Parameter Determined from Refractivity Measurements And Amplitude Scintillation Measurements at 36 GHz

D. Asimakopoulos, C. Helmis, R. Cole, 1983, IEEE Transactions on Geoscience and Remote Sensing.

A Comparative Study of the Main Mechanisms Controlling Indoor Air Pollution in Residential Flats

Helena A. Flocas, Costas G. Helmis, Vasiliki D. Assimakopoulos, 2009 .

Estimation of abl Parameters Using the Vertical Velocity Measurements of an Acoustic Sounder

P. Papageorgas, D. Asimakopoulos, C. Helmis, 1999 .

Spectral characteristics of the wind components in the surface Atmospheric Boundary Layer

D. Asimakopoulos, C. Helmis, 2015 .

C. Helmis, R. Cole, C. G. Helmis, 1988 .

Development and application of an algorithm for the estimation of mixing height with the use of a SODAR-RASS remote sensing system

C. G. Helmis, C. Helmis, G. Sgouros, 2011 .

An experimental study of the near-wake structure of a wind turbine operating over complex terrain

Panagiotis Papageorgas, D. N. Asimakopoulos, K. H. Papadopoulos, 1995 .

Flux measurements in the surface Marine Atmospheric Boundary Layer over the Aegean Sea, Greece.

C. Helmis, V. Kostopoulos, 2014, The Science of the total environment.

A field study of the wake behind a 2 MW wind turbine

D. N. Asimakopoulos, Harry D. Kambezidis, U. Högström, 1988 .

Some aspects of the variation with time of katabatic flow over a simple slope

K. Papadopoulos, C. Helmis, 1996 .

Estimation of transboundary air pollution on the basis of synoptic‐scale weather types

Nicolas Moussiopoulos, Helena A. Flocas, Costas G. Helmis, 2003 .

Indoor TVOCs And CO2 Levels In SelectedClinics Of The Athens Dentistry School, Greece

Costas G. Helmis, Helena A. Flocas, J. Tzoutzas, 2006 .

Indoor Black Carbon and Aerosol Precursors in Three Typical Residential Apartments in Athens, Greece

C. Halios, H. Flocas, C. Helmis, 2004 .

Evaluation of Sodar methods for the determination of the atmospheric boundary layer mixing height

D. N. Asimakopoulos, Costas G. Helmis, J. Michopoulos, 2004 .

Mini-acoustic sounding—A powerful tool for ABL applications: Recent advances and applications of acoustic mini-sodars

D. Asimakopoulos, C. Helmis, M. Petrakis, 1996 .

AN EXPERIMENTAL STUDY OF THE HORIZONTAL AND VERTICAL DISTRIBUTION OF OZONE OVER ATHENS

D. N. Asimakopoulos, M. Petrakis, Costas G. Helmis, 1987 .

On the vertical structure and spectral characteristics of the marine Low-Level Jet

Qing Wang, C. Helmis, G. Sgouros, 2015 .