A5055594018- Atmospheric and Environmental Gas Dynamics
- Atmospheric chemistry and aerosols
- Atmospheric Ozone and Climate
- Air Quality Monitoring and Forecasting
- Arctic and Antarctic ice dynamics
- Air Quality and Health Impacts
- Vehicle emissions and performance
- Methane Hydrates and Related Phenomena
- Mercury impact and mitigation studies
- Advanced Malware Detection Techniques
- Data Stream Mining Techniques
- Spectroscopy and Laser Applications
- Arctic and Russian Policy Studies
- Network Security and Intrusion Detection
- Ionosphere and magnetosphere dynamics
- GNSS positioning and interference
- Hydrological Forecasting Using AI
- Solar Radiation and Photovoltaics
- Inertial Sensor and Navigation
- Oil Spill Detection and Mitigation
- Forecasting Techniques and Applications
- Anomaly Detection Techniques and Applications
University of Bremen
2017-2023
Democritus University of Thrace
2014-2016
Observations of key gaseous trace pollutants, namely NO, NOy, CO, SO2 and O3, performed at several curb, residential, industrial, background free-troposphere sites were analyzed to assess the temporal spatial variability pollution in Cyprus. Notably, analysis utilized one longest datasets 17 years measurements (2003-2019) East Mediterranean Middle (EMME). This region is considered a regional hotspot ozone aerosol pollution. A trend revealed that stations, statistically significant decrease...
Abstract. For more than 2 decades, satellite observations from instruments such as GOME, SCIAMACHY, GOME-2, and OMI have been used for the monitoring of bromine monoxide (BrO) distributions on global regional scales. In October 2017, TROPOspheric Monitoring Instrument (TROPOMI) was launched board Copernicus Sentinel-5 Precursor platform with goal continuous daily trace gas unprecedented spatial resolution. this study, sensitivity tests were performed to find an optimal wavelength range...
Abstract. Every polar spring, phenomena called bromine explosions occur over sea ice. These comprise photochemical heterogeneous chain reactions that release molecules, Br2, to the troposphere and lead tropospheric plumes of monoxide, BrO. This autocatalytic mechanism depletes ozone, O3, in boundary layer thereby changes oxidizing capacity atmosphere. The phenomenon also leads accelerated deposition metals (e.g., Hg). In this study, we present a 22-year (1996 2017) consolidated consistent...
Air pollution is the problem of adding harmful substances or other agents into atmosphere and it caused by industrial, transport household activities. It one most serious problems our times determination conditio
Abstract. Satellite observations have shown large areas of elevated bromine monoxide (BrO) covering several thousand square kilometres over the Arctic and Antarctic sea ice regions in polar spring. These enhancements total BrO columns result from increases stratospheric or tropospheric amounts both, their occurrence may be related to local meteorological conditions. In this study, spatial distribution column associated changes parameters are investigated both using 10 years Global Ozone...
Abstract. During polar spring, ozone depletion events (ODEs) are often observed in combination with bromine explosion (BEEs) Ny-Ålesund. In this study, two long-term data sets (2010–2021) from ozonesonde launches and situ measurements have been evaluated between March May of each year to study ODEs Ozone concentrations below 15 ppb were marked as ODEs. We applied a composite analysis evaluate tropospheric BrO retrieved satellite the prevailing meteorological conditions during these events....
Abstract. For more than two decades, satellite observations from instruments such as GOME, SCIAMACHY, GOME-2 and OMI have been used for the monitoring of bromine monoxide (BrO) distributions on global regional scales. In October 2017, TROPOspheric Monitoring Instrument (TROPOMI) was launched onboard Copernicus Sentinel-5 Precursor platform with goal continuous daily trace gas unprecedented spatial resolution. this study, sensitivity tests were performed to find an optimal wavelength range...
An intriguing natural phenomenon occurs every polar spring, namely the bromine explosion, in which plumes of tropospheric monoxide (BrO) are formed. These observed BrO vertical column densities (VCDs), retrieved from satellite sensors. Tropospheric depletes ozone and facilitates deposition mercury. Bromine molecules mainly released young sea ice, meteorological parameters determine formation evolution enhanced VCD plumes. Due to complexity physicochemical processes involved modeling VCDs...
Abstract. During polar spring, Ozone Depletion Events (ODEs) are often observed in combination with Bromine Explosion (BEEs) Ny-Ålesund. In this study, two long term ozone data sets (2010–2021) from sonde launches and in-situ measurements have been evaluated between March May of each year, to study ODEs concentrations below 15 ppb were marked as ODE. We applied a composite analysis evaluate tropospheric BrO retrieved satellite the prevailing meteorological conditions during these events....
Abstract. Arctic Amplification describes the rapid increase of air temperature in past three decades Arctic, which impacts on physicochemical conditions, ecosystem and biogeochemistry. Every polar spring, BrO explosion, a series chemical reactions that release bromine molecules to troposphere occurs over sea ice covered regions. This autocatalytic mechanism depletes boundary layer tropospheric ozone, thereby changes oxidizing capacity atmosphere facilitates deposition metals (e.g. Hg). In...
Abstract. Satellite observations have shown large areas of elevated BrO covering several thousand km2 over the Arctic and Antarctic sea ice region in polar spring. These enhancements total columns result from increases stratospheric or tropospheric bromine amounts both, their occurrence may be related to local meteorological conditions. In this study, spatial distribution column associated changes parameters are investigated both regions using 10 years GOME-2 measurements combination with...
Ozone Depletion Events (ODEs) have been observed since the late 1990s in polar regions during spring, often combination with Bromine Explosion (BEEs). In a heterogeneous, autocatalytic, chemical chain reaction cycle, inorganic bromine is released from cryosphere into troposphere and depletes ozone, sometimes to below detection limit. Besides low temperatures favoring explosion reactions, two different meteorological conditions are mainly these events: on one hand, wind speeds stable boundary...