A5042512970- Atmospheric aerosols and clouds
- Solar Radiation and Photovoltaics
- Atmospheric Ozone and Climate
- Atmospheric chemistry and aerosols
- Impact of Light on Environment and Health
- Photovoltaic System Optimization Techniques
- Solar Thermal and Photovoltaic Systems
- Air Quality Monitoring and Forecasting
- Atmospheric and Environmental Gas Dynamics
- Calibration and Measurement Techniques
- Air Quality and Health Impacts
- Urban Heat Island Mitigation
- Climate Change and Health Impacts
- Vitamin D Research Studies
- Advanced Image Fusion Techniques
- Remote Sensing in Agriculture
- Meteorological Phenomena and Simulations
- Image Enhancement Techniques
- COVID-19 impact on air quality
- Energy Load and Power Forecasting
- Fire effects on ecosystems
- Wind Energy Research and Development
- Infrared Target Detection Methodologies
- Energy and Environment Impacts
- Climate variability and models
University of Patras
2015-2024
ParisTech
2020
Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
2020
Institut für Solarenergieforschung
2020
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
2020
University of Manchester
2015-2018
Aristotle University of Thessaloniki
2001-2010
Innsbruck Medical University
2007
Low vitamin D status is common in Europe. The major source of humans ultraviolet B (UVB)-induced dermal synthesis cholecalciferol, whereas food sources are believed to play a lesser role. Our objectives were assess UVB availability (Jm(-2)) across several European locations ranging from 35° N 69° N, and compare these data with representative population serum 25-hydroxyvitamin (25(OH)D) Ireland (51-54° N), Iceland (64° N) Norway (69° as exemplars. Vitamin D-effective was modelled for nine...
Sunlight exposure, with resulting cutaneous synthesis, is a major source of vitamin D for many, while dietary intake low in modern diets. The constitutive pigment skin determines type, observed as white, brown, or black skin. melanin absorbs ultraviolet radiation (UVR) and protects underlying from damage caused by UVR. It also reduces the UVR available synthesis has been shown that white-skinned population UK are able to meet their needs short, daily lunchtime exposures sunlight. We have...
Abstract. Monthly averaged surface erythemal solar irradiance (UV-Ery) for local noon from 1960 to 2100 has been derived using radiative transfer calculations and projections of ozone, temperature cloud change 14 chemistry climate models (CCM), as part the CCMVal-2 activity SPARC. Our show influence ozone depletion recovery on irradiance. In addition, we investigate UV-Ery changes caused by due increasing greenhouse gas concentrations. The latter include effects both stratospheric changes....
Abstract We present observations of total cloud cover and type classification results from a sky camera network comprising four stations in Switzerland. In comprehensive intercomparison study, records the camera, long‐wave radiation observations, Meteosat, ceilometer, visual were compared. Total was 65–85% cases within ±1 okta with respect to other methods. The overestimates cloudiness automatic techniques on average by up 1.1 ± 2.8 oktas but underestimates it 0.8 1.9 compared human...
The body gains vitamin D through both oral intake (diet/supplementation) and synthesis in skin upon exposure to ultraviolet radiation (UVR). Sun is the major source for most people even though sun complex limited by climate culture. We aimed quantify required meet targets year-round determine whether this can be safely achieved a simply defined manner UK as an alternative increasing intake. Data from observation (sun exposure, diet, status) UVR intervention studies performed with white...
Abstract. This study aims to investigate global, regional and seasonal temporal dust changes as well the effect of particles on total aerosol loading using ModIs Dust AeroSol (MIDAS) fine-resolution dataset. MIDAS delivers optical depth (DOD) at fine spatial resolution (0.1∘×0.1∘) spanning from 2003 2017. Within this period, burden increased across central Sahara (up 0.023 yr−1) Arabian Peninsula 0.024 yr−1). Both regions observed their highest trends in summer 0.031 On other hand, declining...
Abstract. In August 2021, a historic heatwave was recorded in Greece which resulted extreme wildfire events that strongly affected the air quality over city of Athens. Saharan dust also transferred on certain days same period due to prevailing southern winds. The impact these and surface solar radiation is investigated this study. Event characterization based active passive remote sensing instrumentation has been performed. study shows significantly increased levels pollution were from end...
This paper is based on a comparative study ultraviolet radiation (UV) measurements and UV reconstruction models for eight sites in Europe. Reconstruction include neural network techniques radiative transfer modeling combined with empirical relationships. The have been validated against quality‐controlled ground‐based measurements, 8 to 20 years, time scales ranging from daily yearly sums. standard deviations the ratios of modeled measured sums vary between 10 15%. agree within 5% range....
The assessment model for ultraviolet radiation and risk "AMOUR" is applied to output from two chemistry-climate models (CCMs). Results the UK Chemistry Aerosols CCM are used quantify worldwide skin cancer avoided by Montreal Protocol its amendments: year 2030, million cases of have been prevented yearly, which 14% fewer per year. In "World Avoided," excess incidence will continue grow dramatically after 2030. E39C-A estimate that had already inevitably committed once ozone depletion was...
Abstract The uncertainty of broadband shortwave radiation monitoring is determined for direct, diffuse, and global irradiance measurements obtained at the Payerne (Switzerland) station Baseline Surface Radiation Network (BSRN). estimates include sources that reflect realistic long‐term operation conditions. uncertainties are derived using methodology specified by “Guide to expression in measurement.” differences between redundant determinations analyzed shown be compatible with...
Abstract. We examine sunsets painted by famous artists as proxy information for the aerosol optical depth after major volcanic eruptions. Images derived from precision colour protocols applied to paintings were compared online images, and found that latter, previously analysed, provide accurate information. Aerosol depths (AODs) at 550 nm, corresponding Northern Hemisphere middle latitudes, calculated introducing red-to-green (R / G) ratios a large number of radiative transfer model,...