A. F. Bais
A5055615629- Atmospheric Ozone and Climate
- Atmospheric chemistry and aerosols
- Atmospheric aerosols and clouds
- Atmospheric and Environmental Gas Dynamics
- Solar Radiation and Photovoltaics
- Calibration and Measurement Techniques
- Air Quality Monitoring and Forecasting
- Impact of Light on Environment and Health
- Air Quality and Health Impacts
- Spectroscopy and Laser Applications
- Water Quality Monitoring and Analysis
- Solar and Space Plasma Dynamics
- Climate Change and Health Impacts
- Climate Change and Geoengineering
- Urban Heat Island Mitigation
- Climate variability and models
- Vitamin D Research Studies
- Meteorological Phenomena and Simulations
- Spaceflight effects on biology
- Vehicle emissions and performance
- Skin Protection and Aging
- Particle Detector Development and Performance
- Solar Thermal and Photovoltaic Systems
- Astrophysics and Cosmic Phenomena
- Photovoltaic System Optimization Techniques
Aristotle University of Thessaloniki
2016-2025
University Ecclesiastical Academy of Thessaloniki
2012
Finnish Meteorological Institute
2001
Joint Research Centre
2001
Swedish Meteorological and Hydrological Institute
2001
Université de Lille
2001
NILU
2001
Danish Meteorological Institute
2001
Leibniz University Hannover
2001
University of Macedonia
1993
Ground-based gamma-ray astronomy has had a major breakthrough with the impressive results obtained using systems of imaging atmospheric Cherenkov telescopes. huge potential in astrophysics, particle physics and cosmology. CTA is an international initiative to build next generation instrument, factor 5-10 improvement sensitivity 100 GeV 10 TeV range extension energies well below above TeV. will consist two arrays (one north, one south) for full sky coverage be operated as open observatory....
Abstract. This paper reports on consolidated ground-based validation results of the atmospheric NO2 data produced operationally since April 2018 by TROPOspheric Monitoring Instrument (TROPOMI) board ESA/EU Copernicus Sentinel-5 Precursor (S5P) satellite. Tropospheric, stratospheric, and total column from S5P are compared to correlative measurements collected from, respectively, 19 Multi-Axis Differential Optical Absorption Spectroscopy (MAX-DOAS), 26 Network for Detection Atmospheric...
Abstract This assessment by the Environmental Effects Assessment Panel (EEAP) of United Nations Environment Programme (UNEP) provides latest scientific update since our most recent comprehensive (Photochemical and Photobiological Sciences, 2019, 18, 595–828). The interactive effects between stratospheric ozone layer, solar ultraviolet (UV) radiation, climate change are presented within framework Montreal Protocol Sustainable Development Goals. We address how these global environmental...
Abstract. In October 2017, the Sentinel-5 Precursor (S5P) mission was launched, carrying TROPOspheric Monitoring Instrument (TROPOMI), which provides a daily global coverage at spatial resolution as high 7 km × 3.5 and is expected to extend European atmospheric composition record initiated with GOME/ERS-2 in 1995, enhancing our scientific knowledge of processes its unprecedented resolution. Due ongoing need understand monitor recovery ozone layer, well evolution tropospheric pollution, total...
Abstract. The TROPOspheric Monitoring Instrument (TROPOMI), launched in October 2017 on board the Sentinel-5 Precursor (S5P) satellite, monitors composition of Earth's atmosphere at an unprecedented horizontal resolution as fine 3.5 × 5.5 km2. This paper assesses performances TROPOMI formaldehyde (HCHO) operational product compared to its predecessor, OMI (Ozone Instrument) HCHO QA4ECV product, different spatial and temporal scales. parallel development two algorithms favoured consistency...
Abstract The Environmental Effects Assessment Panel of the Montreal Protocol under United Nations Environment Programme evaluates effects on environment and human health that arise from changes in stratospheric ozone layer concomitant variations ultraviolet (UV) radiation at Earth’s surface. current update is based scientific advances have accumulated since our last assessment (Photochem Photobiol Sci 20(1):1–67, 2021). We also discuss how climate change affects depletion radiation, change....
This assessment provides a comprehensive update of the effects changes in stratospheric ozone and other factors (aerosols, surface reflectivity, solar activity, climate) on intensity ultraviolet (UV) radiation at Earth's surface. The is performed context Montreal Protocol Substances that Deplete Ozone Layer its Amendments Adjustments. Changes UV low- mid-latitudes (0-60°) during last 25 years have generally been small (e.g., typically less than 4% per decade, increasing some sites decreasing...
Spectral solar UV radiation measurements performed at Thessaloniki, Greece (40°N), are presented, and the influence of various atmospheric constituents such as total ozone, cloud cover, columnar SO 2 on these is examined. By comparing days with different ozone amounts magnification factor was calculated. Its values range from 1 to 20, depending wavelength ozone. A relationship between cover established, being representative only for 50° zenith angle. In addition, variations irradiances also...
The Dutch‐Finnish Ozone Monitoring Instrument (OMI) on board the NASA EOS Aura spacecraft is a nadir viewing spectrometer that measures solar reflected and backscattered light in selected range of ultraviolet visible spectrum. instrument has 2600 km wide swath it capable daily, global contiguous mapping. Finnish Meteorological Institute Goddard Space Flight Center have developed surface irradiance algorithm for OMI produces noontime spectral UV estimates at four wavelengths, erythemal dose...
Regular aerosol extinction and backscatter measurements using a UV Raman lidar have been performed from January 2001 to December 2004 at Thessaloniki, Greece (40.5°N, 22.9°E), in the framework of European Aerosol Research Lidar Network (EARLINET). Profiles coefficient, extinction‐to‐backscatter ratio (so‐called “lidar ratio”) were acquired under nighttime conditions used for statistical investigations. The analysis was made both planetary boundary layer free troposphere. It found that 4‐year...
Abstract. In September 2016, 36 spectrometers from 24 institutes measured a number of key atmospheric pollutants for period 17 d during the Second Cabauw Intercomparison campaign Nitrogen Dioxide measuring Instruments (CINDI-2) that took place at Cabauw, Netherlands (51.97∘ N, 4.93∘ E). We report on outcome formal semi-blind intercomparison exercise, which was held under umbrella Network Detection Atmospheric Composition Change (NDACC) and European Space Agency (ESA). The three major goals...
Abstract. This study assesses the impact of dust on surface solar radiation focussing an extreme event. For this purpose, we exploited synergy AERONET measurements and passive active satellite remote sensing (MODIS CALIPSO) observations, in conjunction with radiative transfer model (RTM) chemical transport (CTM) simulations 1-day forecasts from Copernicus Atmosphere Monitoring Service (CAMS). The area interest is eastern Mediterranean where anomalously high aerosol loads were recorded...