A5089639260- Atmospheric chemistry and aerosols
- Air Quality and Health Impacts
- Air Quality Monitoring and Forecasting
- Atmospheric and Environmental Gas Dynamics
- Atmospheric Ozone and Climate
- Vehicle emissions and performance
- COVID-19 impact on air quality
- Impact of Light on Environment and Health
- Maritime Transport Emissions and Efficiency
- Climate Change and Health Impacts
- Health disparities and outcomes
- Noise Effects and Management
- Gas Sensing Nanomaterials and Sensors
- Atmospheric aerosols and clouds
- Water Quality and Pollution Assessment
- Environmental Policies and Emissions
- Satellite Image Processing and Photogrammetry
- Remote Sensing in Agriculture
- Cryospheric studies and observations
- Geological Modeling and Analysis
- Space exploration and regulation
- Advanced Chemical Sensor Technologies
- Ocean Acidification Effects and Responses
- Climate variability and models
- Energy, Environment, Economic Growth
Royal Netherlands Meteorological Institute
2015-2025
Finnish Meteorological Institute
2017
Eindhoven University of Technology
2016
Abstract. Air quality observations by satellite instruments are global and have a regular temporal resolution, which makes them very useful in studying long-term trends atmospheric species. To monitor air China for the period 2005–2015, we derive SO2 columns NOx emissions on provincial level with improved accuracy. put these into perspective they compared public data energy consumption environmental policies of China. We distinguish effect regulations from economic growth comparing...
Abstract During the COVID‐19 lockdown (24 January–20 March) in China low air pollution levels were reported media as a consequence of reduced economic and social activities. Quantification reduction is not straightforward due to effects transport, meteorology, chemistry. We have analyzed NO x emission reductions calculated with an inverse algorithm applied daily 2 observations from TROPOMI onboard Copernicus Sentinel‐5P satellite. This method allows quantification per city analysis emissions...
Emission inventories of air pollutants are crucial information for policy makers and form important input data quality models. Using satellite observations emission estimates has advantages over bottom‐up inventories: they spatially consistent, have high temporal resolution, enable updates shortly after the become available. We present a new algorithm specifically designed to use daily column concentrations fast short‐lived atmospheric constituents on mesoscopic scale (∼25 × 25 km 2 ). The...
Abstract To assess the impact of atmospheric aerosols on health, climate, and air traffic, aerosol properties must be measured with fine spatial temporal sampling. This can achieved by actively involving citizens technology they own to form an measurement network. We establish this new strategy developing deploying iSPEX, a low‐cost, mass‐producible optical add‐on for smartphones corresponding app. The thickness (AOT) maps derived from iSPEX spectropolarimetric measurements daytime...
Abstract. Due to changing economic activity, emissions of air pollutants in East Asia are rapidly space and time. Monthly emission estimates nitrogen oxides derived from satellite observations provide valuable insight into the evolution anthropogenic activity on a regional scale. We present first results new estimation algorithm, specifically designed use daily column concentrations for fast updates short-lived atmospheric constituents mesoscopic scale (~ 0.25° × 0.25°). The algorithm is...
Abstract. The Nanjing Government applied temporary environmental regulations to guarantee good air quality during the Youth Olympic Games (YOG) in 2014. We study effect of those by applying emission estimate algorithm DECSO (Daily Emission estimates Constrained Satellite Observations) measurements Ozone Monitoring Instrument (OMI). improved updating chemical transport model CHIMERE from v2006 v2013 and adding an Observation minus Forecast (OmF) criterion filter outlying satellite retrievals...
Abstract. We compare nine emission inventories of nitrogen oxides including four satellite-derived NOx and the following bottom-up for East Asia: REAS (Regional Emission inventory in ASia), MEIC (Multi-resolution Inventory China), CAPSS (Clean Air Policy Support System) EDGAR (Emissions Database Global Atmospheric Research). Two are estimated by using DECSO (Daily derived Constrained Satellite Observations) algorithm, which is based on an extended Kalman filter applied to observations from...
During the 2008 Olympic and Paralympic Games in Beijing (from 8 August to 17 September), local authorities enforced strong measures reduce air pollution during events. To evaluate direct effect of these measures, we use tropospheric NO 2 column observations from satellite instruments GOME‐2 OMI. We interpret data against simulations regional chemistry transport model CHIMERE, based on a 2006 emission inventory, find reduction concentrations approximately 60% above period. The quality were...
Abstract. In many urban areas the population is exposed to elevated levels of air pollution. However, real-time quality usually only measured at few locations. These measurements provide a general picture state air, but they are unable monitor local differences. New low-cost sensor technology available for several years now, and has potential extend official monitoring networks significantly even though current generation sensors suffer from various technical issues. Citizen science...
Abstract. An operational multi-model forecasting system for air quality including nine different chemical transport models has been developed and provides daily forecasts of ozone, nitrogen oxides, particulate matter the 37 largest urban areas China (population higher than 3 million in 2010). These individual as well mean median concentrations next days are displayed on a publicly accessible website (http://www.marcopolo-panda.eu, last access: 7 December 2018). The paper describes shows some...
Abstract By applying an inversion algorithm to NO x satellite observations from Ozone Monitoring Instrument, monthly emissions for a 10 year period (2007 2016) over Chinese seas are presented the first time. No effective regulations on have been implemented ships in China, which is reflected trend analysis of maritime emissions. The display continuous increase rate about 20% per until 2012 and slow down 3% after that. seasonal cycle shipping has regional variations, but all regions show...
Abstract. We improve the emission estimate algorithm DECSO (Daily Emission estimates Constrained by Satellite Observations) to better detect NOx emissions over remote areas. The new version is referred as v5. error covariance of sensitivity NO2 column observations gridded has been characterized. This reduces background noise a factor 10. An update constraint added avoid unrealistic day-to-day fluctuations emissions. total emissions, which include biogenic that often drive seasonal cycle...
Abstract. The main aim of this paper is to update existing sulfur dioxide (SO2) emission inventories over China using modern inversion techniques, state-of-the-art chemistry transport modelling (CTM) and satellite observations SO2. Within the framework EU Seventh Framework Programme (FP7) MarcoPolo (Monitoring Assessment Regional air quality in space Observations) project, a new SO2 inventory was calculated CHIMERE v2013b CTM simulations, 10 years Ozone Monitoring Instrument (OMI)/Aura total...
Abstract. Chemical transport models together with emission inventories are widely used to simulate NO2 concentrations over China, but validation of the simulations in situ measurements has been extremely limited. Here we use ground obtained from air quality monitoring network recently developed by Ministry Environmental Protection China validate modeling surface CHIMERE regional chemical model driven satellite-derived DECSO and bottom-up MIX inventories. We applied a correction factor...
ADVERTISEMENT RETURN TO ISSUEPREVViewpointNEXTToward a Unified Terminology of Processing Levels for Low-Cost Air-Quality SensorsPhilipp Schneider*Philipp SchneiderNILU - Norwegian Institute Air Research, PO Box 100, Kjeller, Norway*E-mail: [email protected]More by Philipp Schneiderhttp://orcid.org/0000-0001-5686-8683, Alena BartonovaAlena BartonovaNILU NorwayMore Bartonova, Nuria CastellNuria CastellNILU Castell, Franck R. DaugeFranck DaugeNILU Dauge, Michel GerbolesMichel GerbolesEuropean...
Abstract. An operational multimodel forecasting system for air quality has been developed to provide services urban areas of China. The initial included seven state-of-the-art computational models and executed in Europe China (CHIMERE, IFS, EMEP MSC-W, WRF-Chem-MPIM, WRF-Chem-SMS, LOTOS-EUROS, SILAMtest). Several other joined the prediction recently, but are not considered present analysis. In addition individual models, a simple ensemble was constructed by deriving statistical quantities...
The fast industrialization and urbanization in India lead to serious air quality problems. Using the long record of satellite observations NO2 from Ozone Monitoring Instrument, we have derived monthly NOx emissions over 2007 2018 by applying an inversion algorithm QA4ECV retrieval product. Our results show that steadily increased more than 50% until 2016. From 2017 onwards, become stable or are slowly decreasing. Furthermore, our also reveal a strong seasonal cycle emission with peak summer,...
The association between short-term exposure to air pollution and cognitive mental health has not been thoroughly investigated so far.We conducted a panel study co-designed with citizens assess whether can affect attention, perceived stress, mood sleep quality.From September 2020 March 2021, we followed 288 adults (mean age = 37.9 years; standard deviation 12.1 years) for 14 days in Barcelona, Spain. Two tasks were self-administered daily through mobile application: the Stroop color-word test...
Abstract. Urban air pollution poses a significant health risk, with over half the global population living in cities where quality often exceeds World Health Organization (WHO) guidelines. A comprehensive understanding of local levels is essential for addressing this issue. Recent advancements low-cost sensors and satellite instruments offer cost- efficient complements to reference stations but integrating these diverse data sources useful monitoring tools not straightforward. This study...
We present a new Horizon Europe project titled GreenEO (2025-2029) as well findings based on advances in modelling within the Nordic Nature & Nitrogen (Nordic Council of Ministers, 2021-2024) and SEEDS (Horizon 2020, 2021-2023) projects. The ambition is to support governance approaches for implementation EU’s Green Deal. which will rely accessible, actionable environmental data policymaking monitoring. Success be dependent usage latest observational level uptake these by...
In recent years, there has been growing interest in developing air pollution prediction models to reduce exposure measurement error epidemiologic studies. However, efforts for localized, fine-scale have predominantly focused the United States and Europe. Furthermore, availability of new satellite instruments such as TROPOsopheric Monitoring Instrument (TROPOMI) provides novel opportunities modeling efforts. We estimated daily ground-level nitrogen dioxide (NO2) concentrations Mexico City...
Citizens are providing vast amounts of georeferenced data in the form situ collections as well interpretations and digitization Earth-observation (EO) sets. These new streams have considerable potential for supporting calibration validation current future products derived from EO. We provide a general introduction to this growing area interest review existing crowdsourcing citizen science (CS) initiatives relevance then draw upon our own experiences case studies that highlight different...
During the COVID-19 lockdown (24 Jan to 20 March) in China low air pollution levels were reported media as a consequence of reduced economic and social activities. Quantification reduction is not straightforward due effects transport, meteorology, chemistry. We have analysed NO emission reductions calculated with an inverse algorithm applied daily observations from TROPOMI onboard Copernicus Sentinel-5P satellite. This method allows quantification per city, analysis emissions maritime...