A5043021475- Atmospheric aerosols and clouds
- Atmospheric chemistry and aerosols
- Atmospheric and Environmental Gas Dynamics
- Air Quality Monitoring and Forecasting
- Air Quality and Health Impacts
- Meteorological Phenomena and Simulations
- Wind and Air Flow Studies
- Atmospheric Ozone and Climate
- Aeolian processes and effects
- Air Traffic Management and Optimization
- Fire effects on ecosystems
- Calibration and Measurement Techniques
- Urban Heat Island Mitigation
- Risk and Safety Analysis
- Odor and Emission Control Technologies
- Occupational Health and Safety Research
- Traffic and Road Safety
- Remote Sensing and LiDAR Applications
- Fluid Dynamics and Turbulent Flows
- Remote Sensing in Agriculture
- Disaster Management and Resilience
- Structural Response to Dynamic Loads
- Environmental and Social Impact Assessments
- Climate change impacts on agriculture
- Geochemistry and Geologic Mapping
Babeș-Bolyai University
2010-2024
National Institute of Research and Development for Optoelectronics
2013-2015
Alexandru Ioan Cuza University
2015
National Research Council - Institute of Methodologies for Environmental Analysis
2015
Abstract. A stand-alone lidar-based method for detecting airborne hazards aviation in near real time (NRT) is presented. polarization lidar allows the identification of irregular-shaped particles such as volcanic dust and desert dust. The Single Calculus Chain (SCC) European Aerosol Research Lidar Network (EARLINET) delivers high-resolution preprocessed data: calibrated total attenuated backscatter volume linear depolarization ratio series. From these signals, particle coefficient can be...
Abstract. Routine sun-photometer and micro-lidar measurements were performed in Lille, northern France, April May 2010 during the Eyjafjallajökull volcanic eruption. The impact of such an eruption emphasized significance hazards for human activities importance observations aerosol particles. This paper presents main results a joint micro-lidar/sun-photometer analysis where ash plumes observed at least 22 days, whenever weather conditions permitted. Aerosol properties retrieved from automatic...
This study addresses the challenges of characterizing Aerosol Optical Depth (AOD) dynamics from satellite observations, which are often hindered by data gaps and variability. A Long Short-Term Memory (LSTM) network was trained on an extended AOD dataset Sicily to capture temporal patterns. The model then applied distinct geographical regions: Cluj-Napoca Central Mediterranean Sea. While LSTM effectively captured general seasonal trends, it tended smooth extreme events. To mitigate this, a...
Mineral aerosols are considered to be the second largest source of natural aerosol, Saharan desert being main dust at global scale. Under certain meteorological conditions, can transported over large parts Europe, including Romania. The aim this paper is provide a complex analysis outbreak Transylvania region Romania, based on synergy multiple ground-based and satellite sensors in order detect intrusion with higher degree certainty. measurements were performed during peak April 24th 2019,...
Aerosols play an important role in Earth’s climate system, and thus long-time ground- based measurements of aerosol optical properties are useful understanding this role. Ten years quality-assured between 2010 2020 used to investigate the climatology Cluj-Napoca area, North-Western Romania. In study, we analyze depth (AOD), single scattering albedo (SSA) angstrom exponent obtained by CIMEL sun photometer, part robotic network (AERONET), extract seasonality aerosols region area. Higher loads...
Aerosols influence Earth’s climate by interacting with radiation and clouds. Remote sensing techniques aim to enhance our understanding of aerosol forcing using ground-based satellite retrievals. Despite technological advancements, challenges persist in reducing uncertainties remote sensing. Our study examines retrieval biases MODIS sensors on Terra Aqua satellites compared AERONET measurements. We assess their performance the correlation optical depth (AOD) 14 years data (2010–2023) from 29...
Between 14 March and 21 April 2022, an extensive investigation of extraordinary Saharan dust intrusion over Europe was performed based on lidar measurements obtained by the European Aerosol Research Lidar Network (EARLINET). The episode divided into two distinct periods, one in April, characterized different transport paths. aerosol layers were studied 18 EARLINET stations, examining characteristics during four regions (M-I, M-II, M-III, M-IV A-I, A-II, A-III, A-IV, respectively), focusing...
The satellite based monitoring initiative for regional air quality (SAMIRA) was set up to demonstrate the exploitation of existing data and urban scale quality. project carried out between May 2016 December 2019 focused on aerosol optical depth (AOD), particulate matter (PM), nitrogen dioxide (NO2), sulfur (SO2). SAMIRA built around several research tasks: 1. spinning enhanced visible infrared imager (SEVIRI) AOD optimal estimation algorithm improved geographically extended from Poland...
Abstract. Black carbon aerosols are the second largest contributor to global warming while also being linked respiratory and cardiovascular disease. These particles generally found in smoke plumes originating from biomass burning fossil fuel combustion. They heavily concentrated oil fires, exhibiting ratio of black organic carbon. In this study, we identified analysed derived 30 major industrial events within a 12-year timeframe. To our knowledge, is first study its kind that utilized...
This paper presents the validation results of Aerosol Optical Depth (AOD) retrieved from Spinning Enhanced Visible Infrared Radiometer (SEVIRI) data using near-real-time algorithm further developed in frame Satellite-based Monitoring Initiative for Regional Air quality (SAMIRA) project. The SEVIRI AOD was compared against multiple sources: six stations Robotic Network (AERONET) Romania and Poland, three Research Poland (Poland–AOD) Moderate Resolution Imaging Spectroradiometer (MODIS)...
This study focuses on the local scale behavior of SO 2 emissions resulting from lignite-combustion thermal power plants.The investigations aimed at monitoring and imissions over a two week period in September 2010.One largest plants Eastern Europe was chosen for using different optoelectronic techniques.Rovinari plant (44 o 54'45"N -23 09'44"E) is one electricity suppliers Romania, having 4 groups 330 MW each, with total installed capacity 1420 located Rovinari-Motru coal mining area along...
Abstract. A stand-alone lidar-based method for detecting airborne hazards aviation in near-real-time (NRT) is presented. polarization lidar allows the identification of irregular-shaped particles such as volcanic dust and desert dust. The Single Calculus Chain (SCC) European Aerosol Lidar Network (EARLINET) delivers high resolution pre-processed data: calibrated total attenuated backscatter volume linear depolarization ratio time series. From these signals, particle coefficient can be...
In this paper we present results from the first European (EUR) and North Atlantic (NAT) volcanic ash exercise (VOLCEX) which includes all warning phases associated as alerting, reactive proactive phases.Because represents one of most serious natural hazards that could affect aviation safety, measurement campaign was focused on improving reaction relevant authorities in case airspace contamination with and, particularly, to assess current operational procedures information flows.Organized...
This paper presents some optical and microphysical properties of aerosols measured over the Cluj-Napoca city, at Faculty Environmental Science Engineering, Babeş-Bolyai University.This site is part Romanian Atmospheric 3D Research Observatory (RADO) Aerosol Robotic Network (NASA-AERONET) equipped with only sun sky tracking radiometer (Cimel CE 318A sun-photometer) in Transylvania.By analyzing Direct Sun measurements like Optical Thickness (AOT) Angstrom Parameter (α), combined inversion data...
Sites contaminated with hazardous material are a topical and urgent problem all over the world.Risk based remediation is used to develop maximum safety cost effective sanitation methods for future land users.The analyzed site lays within North Western region of Romania, in vicinity Baia Mare, main city Maramures County.Taking into account former activities conducted on site, as well demolishing works developments, analyses certain contaminants soil, groundwater building materials were...
Abstract. Routine sun-photometer and micro-LIDAR measurements were performed in Lille, northern France, April May 2010 during the Eyjafjallajökull volcanic eruption. The impact of such an eruption emphasized significance hazards for human activities importance observarions aerosol particles. This paper presents main results a joint micro-LIDAR/sun-photometer analysis where ash plumes observed at least 22 days, weather conditions permitting. Aerosol properties retrieved from automatic...
The paper presents the preliminary results of lidar&radiometer measurement campaign (LRMC-2017), estimation statistical relations between aerosol mode concentrations retrieved from CALIOP and ground-based lidar stations case study fire smoke events in Eurasian regions using combined space radiometer observations.
Apart from affecting citizens health and wellbeing across urban rural areas, air pollution has significant economic implications which inhibit progress, especially for developing countries. The role of quality monitoring to ensure population wellness is a key topic in the current pursuit sustainable development goals, promoting active response decision-makers address acute socio-environmental challenges promote resilient future. In this study, an integrated system was proposed within...