Marco Vountas
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View article: First results of the XBAER aerosol optical depth algorithm with EnMAP data
First results of the XBAER aerosol optical depth algorithm with EnMAP data Open
New high-resolution hyper and multispectral satellite instruments enable the retrieval of aerosol optical depth (AOD) at spatial resolutions of tens of meters. The eXtensible Bremen AErosol Retrieval (XBAER) AOD retrieval algorithm has pre…
View article: Aerosol composition retrieval from a combination of three different spaceborne instruments: information content analysis
Aerosol composition retrieval from a combination of three different spaceborne instruments: information content analysis Open
This study focuses on the information content for retrieving aerosol optical depth (AOD) and its components from satellite measurements. We utilise an optimal estimation retrieval algorithm with data from three satellite-based instruments:…
View article: Insights of aerosol-precipitation nexus in the central Arctic through CMIP6 climate models
Insights of aerosol-precipitation nexus in the central Arctic through CMIP6 climate models Open
The Arctic is experiencing heightened precipitation, affected by aerosols impacting rainfall and snowfall. However, sparse aerosol observations in the central Arctic cryosphere contribute to uncertainties in simulating aerosol-precipitatio…
View article: Satellite Aerosol Composition Retrieval from a combination of three different Instruments: Information content analysis
Satellite Aerosol Composition Retrieval from a combination of three different Instruments: Information content analysis Open
This study focuses on the information content for retrieving Aerosol Optical Depth (AOD) and its components from satellite measurements. We utilize an optimal estimation retrieval algorithm with data from three satellite-based instruments:…
View article: Tracing human influence on rising surface air temperature in Venezuela
Tracing human influence on rising surface air temperature in Venezuela Open
The rise in surface air temperature (SAT) in Venezuela, leading to the loss of all its glaciers, underscores the urgency of understanding human contributions to this phenomenon. This study investigates the impact of anthropogenic climate f…
View article: Aerosols in the central Arctic cryosphere: satellite and model integrated insights during Arctic spring and summer
Aerosols in the central Arctic cryosphere: satellite and model integrated insights during Arctic spring and summer Open
The central Arctic cryosphere is influenced by the Arctic amplification (AA) and is warming faster than the lower latitudes. AA affects the formation, loss, and transport of aerosols. Efforts to assess the underlying processes determining …
View article: Comment on egusphere-2024-516
Comment on egusphere-2024-516 Open
Abstract. An air quality model ensemble is used to represent the current state-of-the-art in atmospheric modeling, composed of two global forecasts and two regional simulations. The model ensemble assessment focuses on bot…
View article: Comment on egusphere-2024-516
Comment on egusphere-2024-516 Open
Abstract. An air quality model ensemble is used to represent the current state-of-the-art in atmospheric modeling, composed of two global forecasts and two regional simulations. The model ensemble assessment focuses on bot…
View article: Comment on egusphere-2024-521
Comment on egusphere-2024-521 Open
Abstract. The concentration of carbonaceous aerosols, black carbon (BC) and organic aerosol (OA), in the atmosphere is related to co-emitted or co-produced trace gases. In this study, we investigate the most relevant propo…
View article: Comment on egusphere-2024-521
Comment on egusphere-2024-521 Open
Abstract. The concentration of carbonaceous aerosols, black carbon (BC) and organic aerosol (OA), in the atmosphere is related to co-emitted or co-produced trace gases. In this study, we investigate the most relevant propo…
View article: Comment on egusphere-2024-516
Comment on egusphere-2024-516 Open
Abstract. An air quality model ensemble is used to represent the current state-of-the-art in atmospheric modeling, composed of two global forecasts and two regional simulations. The model ensemble assessment focuses on bot…
View article: Assessing Model simulation for central Arctic aerosol load by usingAEROSNOW dataset: Relevance for precipitation
Assessing Model simulation for central Arctic aerosol load by usingAEROSNOW dataset: Relevance for precipitation Open
The Arctic is currently warming rapidly, at a rate four times higher than the global average. This warming has significant consequences, leading to increased precipitation in the Arctic. Aerosols play a crucial role in cloud formation, clo…
View article: Assessing Atmospheric Mercury Dynamics: A Comparative Analysis of Current Anthropogenic Emission Inventories and their Implications for Concentration and Deposition in India
Assessing Atmospheric Mercury Dynamics: A Comparative Analysis of Current Anthropogenic Emission Inventories and their Implications for Concentration and Deposition in India Open
Anthropogenic mercury emissions pose significant risks to both human health and ecosystems, particularly when transformed into methylmercury. India stands as the second-largest contributor to mercury emissions, estimated at 144.7 tonnes of…
View article: Information content analysis for aerosol type from a combination of three satellite instruments
Information content analysis for aerosol type from a combination of three satellite instruments Open
Aerosols affect climate in several ways. Their effect depends not only on the aerosol abundance and geospatial distribution but also on the aerosol types present. Therefore, there is an important need for the retrieval of aerosol types fro…
View article: Air quality model assessment in city plumes of Europe and East Asia
Air quality model assessment in city plumes of Europe and East Asia Open
An air quality model ensemble is used to represent the current state-of-the-art in atmospheric modeling, composed of two global forecasts and two regional simulations. The model ensemble assessment focuses on both carbonaceous aerosols, i.…
View article: Proportional relationships between carbonaceous aerosols and trace gases in city plumes of Europe and East Asia
Proportional relationships between carbonaceous aerosols and trace gases in city plumes of Europe and East Asia Open
The concentration of carbonaceous aerosols, black carbon (BC) and organic aerosol (OA), in the atmosphere is related to co-emitted or co-produced trace gases. In this study, we investigate the most relevant proportional relationships betwe…
View article: Comment on egusphere-2024-440
Comment on egusphere-2024-440 Open
Abstract. The central Arctic cryosphere is influenced by the Arctic Amplification (AA) and is warming faster than the lower latitudes. AA affects the formation, loss and transport of aerosols. Efforts to assess the underly…
View article: Comment on egusphere-2024-440
Comment on egusphere-2024-440 Open
Abstract. The central Arctic cryosphere is influenced by the Arctic Amplification (AA) and is warming faster than the lower latitudes. AA affects the formation, loss and transport of aerosols. Efforts to assess the underly…
View article: Assessing the variability of Aerosol Optical Depth over India in response to future scenarios: Implications for carbonaceous aerosols
Assessing the variability of Aerosol Optical Depth over India in response to future scenarios: Implications for carbonaceous aerosols Open
Air pollution caused by various anthropogenic activities and biomass burning continues to be a major problem in India. To assess the effectiveness of current air pollution mitigation measures, we used a 3D global chemical transport model t…
View article: Aerosols in the central Arctic cryosphere: Satellite and model integrated insights during Arctic spring and summer
Aerosols in the central Arctic cryosphere: Satellite and model integrated insights during Arctic spring and summer Open
The central Arctic cryosphere is influenced by the Arctic Amplification (AA) and is warming faster than the lower latitudes. AA affects the formation, loss and transport of aerosols. Efforts to assess the underlying processes determining a…
View article: Retrieval of aerosol optical depth over the Arctic cryosphere during spring and summer using satellite observations
Retrieval of aerosol optical depth over the Arctic cryosphere during spring and summer using satellite observations Open
The climate in the Arctic has warmed much more quickly in the last 2 to 3 decades than at the mid-latitudes, i.e., during the Arctic amplification (AA) period. Radiative forcing in the Arctic is influenced both directly and indirectly by a…
View article: Modeling of mercury deposition in India: evaluating emission inventories and anthropogenic impacts
Modeling of mercury deposition in India: evaluating emission inventories and anthropogenic impacts Open
Fragile ecosystems (Western Ghats and Himalayas), and major rice cultivation areas are vulnerable to highest Hg deposition. Indian anthropogenic emissions strongly influence deposition fluxes with varying regional impacts.
View article: Constraints on simulated past Arctic amplification and lapse rate feedback from observations
Constraints on simulated past Arctic amplification and lapse rate feedback from observations Open
The Arctic has warmed more rapidly than the global mean during the past few decades. The lapse rate feedback (LRF) has been identified as being a large contributor to the Arctic amplification (AA) of climate change. This particular feedbac…
View article: Validation of the Cloud_CCI (Cloud Climate Change Initiative) cloud products in the Arctic
Validation of the Cloud_CCI (Cloud Climate Change Initiative) cloud products in the Arctic Open
The role of clouds in the Arctic radiation budget is not well understood. Ground-based and airborne measurements provide valuable data to test and improve our understanding. However, the ground-based measurements are intrinsically sparse, …
View article: Comment on amt-2023-65
Comment on amt-2023-65 Open
Abstract. The Arctic climate has changed significantly over the past two to three decades. Aerosols play various roles in the radiative forcing in the Arctic, both directly and indirectly, depending on the changes in loadi…
View article: Comment on amt-2023-65
Comment on amt-2023-65 Open
Abstract. The Arctic climate has changed significantly over the past two to three decades. Aerosols play various roles in the radiative forcing in the Arctic, both directly and indirectly, depending on the changes in loadi…
View article: Spring and summertime aerosol optical depth variability over Arctic cryosphere from space-borne observations and model simulation
Spring and summertime aerosol optical depth variability over Arctic cryosphere from space-borne observations and model simulation Open
The Arctic is a unique part of the Earth system that is currently undergoing a warming phase called the Arctic Amplification (AA). Changes in aerosol abundance and composition are under the influence of the AA and may be, in turn, importan…
View article: Spring and summertime aerosol optical depth retrieval over the Arctic cryosphere by using satellite observations
Spring and summertime aerosol optical depth retrieval over the Arctic cryosphere by using satellite observations Open
The Arctic climate has changed significantly over the past two to three decades. Aerosols play various roles in the radiative forcing in the Arctic, both directly and indirectly, depending on the changes in loading and composition. However…
View article: Change of tropospheric aerosol over the ocean in the Arctic observed from space
Change of tropospheric aerosol over the ocean in the Arctic observed from space Open
Aerosols play a critical role in climate change over the polar regions. The impacts of aerosol on Arctic Amplification is not well understood. In this talk, satellite observations from different instruments are used to understand the spati…
View article: Satellite remote sensing of regional and seasonal Arctic cooling showing a multi-decadal trend towards brighter and more liquid clouds
Satellite remote sensing of regional and seasonal Arctic cooling showing a multi-decadal trend towards brighter and more liquid clouds Open
Two decades of measurements of spectral reflectance of solar radiation at the top of the atmosphere and a complementary record of cloud properties from satellite passive remote sensing have been analyzed for their pan-Arctic, regional, and…