Cassandra J. Gaston
YOU?
Author Swipe
View article: Transported African Dust in the Lower Marine Atmospheric Boundary Layer is Internally Mixed with Sea Salt Contributing to Increased Hygroscopicity and a Lower Lidar Depolarization Ratio
Transported African Dust in the Lower Marine Atmospheric Boundary Layer is Internally Mixed with Sea Salt Contributing to Increased Hygroscopicity and a Lower Lidar Depolarization Ratio Open
Saharan dust is transported across the Atlantic, yet the chemical, physical, and morphological transformations dust undergoes within the marine atmospheric boundary layer (MABL) remain poorly understood. These transformations are critical …
View article: Supplementary material to "Transported African Dust in the Lower Marine Atmospheric Boundary Layer is Internally Mixed with Sea Salt Contributing to Increased Hygroscopicity and a Lower Lidar Depolarization Ratio"
Supplementary material to "Transported African Dust in the Lower Marine Atmospheric Boundary Layer is Internally Mixed with Sea Salt Contributing to Increased Hygroscopicity and a Lower Lidar Depolarization Ratio" Open
View article: African dust transported to Barbados in the wintertime lacks indicators of chemical aging
African dust transported to Barbados in the wintertime lacks indicators of chemical aging Open
The chemical processing (“aging”) of mineral dust is thought to increase dust light-scattering efficiency, cloud droplet activation, and nutrient solubility. However, the extent of African dust aging during long-range transport to the west…
View article: “Godzilla,” the Extreme African Dust Event of June 2020: Origins, Transport, and Impact on Air Quality in the Greater Caribbean Basin
“Godzilla,” the Extreme African Dust Event of June 2020: Origins, Transport, and Impact on Air Quality in the Greater Caribbean Basin Open
In June 2020, the tropical Atlantic and the Caribbean Basin were affected by a series of African dust outbreaks unprecedented in size and intensity. These events, informally named “Godzilla,” coincided with CALIMA, a large field campaign, …
View article: AERO-MAP: a data compilation and modeling approach to understand spatial variability in fine- and coarse-mode aerosol composition
AERO-MAP: a data compilation and modeling approach to understand spatial variability in fine- and coarse-mode aerosol composition Open
Aerosol particles are an important part of the Earth climate system, and their concentrations are spatially and temporally heterogeneous, as well as being variable in size and composition. Particles can interact with incoming solar radiati…
View article: African dust transported to Barbados in the Wintertime Lacks Indicators of Chemical Aging
African dust transported to Barbados in the Wintertime Lacks Indicators of Chemical Aging Open
The chemical processing (“aging”) of mineral dust is thought to increase dust light scattering efficiency, cloud droplet activation, and nutrient solubility. However, the extent of African dust aging during long-range transport to the west…
View article: Constraining Present‐Day Anthropogenic Total Iron Emissions Using Model and Observations
Constraining Present‐Day Anthropogenic Total Iron Emissions Using Model and Observations Open
Iron emissions from human activities, such as oil combustion and smelting, affect the Earth's climate and marine ecosystems. These emissions are difficult to quantify accurately due to a lack of observations, particularly in remote ocean r…
View article: Diverging trends in aerosol sulfate and nitrate measured in the remote North Atlantic in Barbados are attributed to clean air policies, African smoke, and anthropogenic emissions
Diverging trends in aerosol sulfate and nitrate measured in the remote North Atlantic in Barbados are attributed to clean air policies, African smoke, and anthropogenic emissions Open
Sulfate and nitrate aerosols degrade air quality, modulate radiative forcing and the hydrological cycle, and affect biogeochemical cycles, yet their global cycles are poorly understood. Here, we examined trends in 21 years of aerosol measu…
View article: AERO-MAP: A data compilation and modelling approach to understand spatial variability in fine and coarse mode aerosol composition
AERO-MAP: A data compilation and modelling approach to understand spatial variability in fine and coarse mode aerosol composition Open
Aerosol particles are an important part of the Earth system, but their concentrations are spatially and temporally heterogeneous, as well as variable in size and composition. Particles can interact with incoming solar radiation and outgoin…
View article: Datasets for: AERO-MAP: A data compilation and modelling approach to understand the fine and coarse mode aerosol composition
Datasets for: AERO-MAP: A data compilation and modelling approach to understand the fine and coarse mode aerosol composition Open
This repository contains the data compilation, gridded datasets, model output, model source code changes and model inputs for the paper: “AERO-MAP: A data compilation and modelling approach to understand the fine and coarse mode aerosol co…
View article: Characterizing the Atmospheric Mn Cycle and Its Impact on Terrestrial Biogeochemistry
Characterizing the Atmospheric Mn Cycle and Its Impact on Terrestrial Biogeochemistry Open
The role of manganese (Mn) in ecosystem carbon (C) biogeochemical cycling is gaining increasing attention. While soil Mn is mainly derived from bedrock, atmospheric deposition could be a major source of Mn to surface soils, with implicatio…
View article: Comment on egusphere-2024-11
Comment on egusphere-2024-11 Open
Abstract. Sulfate and nitrate aerosols degrade air quality, modulate radiative forcing and the hydrological cycle, and affect critical biogeochemical cycles, yet their global cycles are poorly understood. To address this i…
View article: Comment on egusphere-2024-11
Comment on egusphere-2024-11 Open
Abstract. Sulfate and nitrate aerosols degrade air quality, modulate radiative forcing and the hydrological cycle, and affect critical biogeochemical cycles, yet their global cycles are poorly understood. To address this i…
View article: Supplementary material to "Diverging trends in aerosol sulfate and nitrate measured in the remote North Atlantic on Barbados are attributed to clean air policies, African smoke, and anthropogenic emissions"
Supplementary material to "Diverging trends in aerosol sulfate and nitrate measured in the remote North Atlantic on Barbados are attributed to clean air policies, African smoke, and anthropogenic emissions" Open
Table S1: Normalized mean bias (NMB), mean bias (MB), root-mean-sqaure error (RMSE), and the Pearson correlation coefficient (r) for EQUATES model runs for nitrate and nss-sulfate compared to observations for each year from Ragged Point.Ye…
View article: Diverging trends in aerosol sulfate and nitrate measured in the remote North Atlantic on Barbados are attributed to clean air policies, African smoke, and anthropogenic emissions
Diverging trends in aerosol sulfate and nitrate measured in the remote North Atlantic on Barbados are attributed to clean air policies, African smoke, and anthropogenic emissions Open
Sulfate and nitrate aerosols degrade air quality, modulate radiative forcing and the hydrological cycle, and affect critical biogeochemical cycles, yet their global cycles are poorly understood. To address this issue, we examined trends in…
View article: Supplementary material to "AERO-MAP: A data compilation and modelling approach to understand the fine and coarse mode aerosol composition"
Supplementary material to "AERO-MAP: A data compilation and modelling approach to understand the fine and coarse mode aerosol composition" Open
View article: AERO-MAP: A data compilation and modelling approach to understand the fine and coarse mode aerosol composition
AERO-MAP: A data compilation and modelling approach to understand the fine and coarse mode aerosol composition Open
Aerosol particles are an important part of the Earth system, but their concentrations are spatially and temporally heterogeneous, as well as variable in size and composition. Aerosol particles can interact with incoming solar radiation and…
View article: Datasets for: AERO-MAP: A data compilation and modelling approach to understand the fine and coarse mode aerosol composition
Datasets for: AERO-MAP: A data compilation and modelling approach to understand the fine and coarse mode aerosol composition Open
This repository contains the data compilation, gridded datasets, model output, model source code changes and model inputs for the paper: “AERO-MAP: A data compilation and modelling approach to understand the fine and coarse mode aerosol co…
View article: Godzilla mineral dust and La Soufrière volcanic ash fallout immediately stimulate marine microbial phosphate uptake
Godzilla mineral dust and La Soufrière volcanic ash fallout immediately stimulate marine microbial phosphate uptake Open
During the “Godzilla” dust storm of June 2020, unusually high fluxes of mineral dust traveled across the Atlantic from the Sahara Desert, reaching the Caribbean Basin, Gulf Coast, and southeastern United States. Additionally, an eruption o…
View article: Global organic and inorganic aerosol hygroscopicity and its effect on radiative forcing
Global organic and inorganic aerosol hygroscopicity and its effect on radiative forcing Open
View article: Characterizing the Atmospheric Mn Cycle and Its Impact on Terrestrial Biogeochemistry
Characterizing the Atmospheric Mn Cycle and Its Impact on Terrestrial Biogeochemistry Open
Manganese (Mn) is a key cofactor in enzymes responsible for lignin decay (mainly Mn peroxidase), regulating the rate of litter degradation and carbon (C) turnover in temperate and boreal forest biomes.While soil Mn is mainly derived from b…
View article: Health and Safety Effects of Airborne Soil Dust in the Americas and Beyond
Health and Safety Effects of Airborne Soil Dust in the Americas and Beyond Open
Risks associated with dust hazards are often underappreciated, a gap between the knowledge pool and public awareness that can be costly for impacted communities. This study reviews the emission sources and chemical, physical, and biologica…
View article: African smoke particles act as cloud condensation nuclei in the wintertime tropical North Atlantic boundary layer over Barbados
African smoke particles act as cloud condensation nuclei in the wintertime tropical North Atlantic boundary layer over Barbados Open
The number concentration and properties of aerosol particles serving as cloud condensation nuclei (CCN) are important for understanding cloud properties, including in the tropical Atlantic marine boundary layer (MBL), where marine cumulus …
View article: The ice-nucleating activity of African mineral dust in the Caribbean boundary layer
The ice-nucleating activity of African mineral dust in the Caribbean boundary layer Open
African mineral dust is transported many thousands of kilometres from its source regions, and, because of its ability to nucleate ice, it plays a major role in cloud glaciation around the globe. The ice-nucleating activity of desert dust i…
View article: Coupling Sr–Nd–Hf Isotope Ratios and Elemental Analysis to Accurately Quantify North African Dust Contributions to PM<sub>2.5</sub> in a Complex Urban Atmosphere by Reducing Mineral Dust Collinearity
Coupling Sr–Nd–Hf Isotope Ratios and Elemental Analysis to Accurately Quantify North African Dust Contributions to PM<sub>2.5</sub> in a Complex Urban Atmosphere by Reducing Mineral Dust Collinearity Open
Tracking Saharan-Sahelian dust across the globe is essential to elucidate its effects on Earth's climate, radiation budget, hydrologic cycle, nutrient cycling, and also human health when it seasonally enters populated/industrialized region…
View article: African Smoke Particles Act as Cloud Condensation Nuclei in the Wintertime Tropical North Atlantic Boundary Layer over Barbados
African Smoke Particles Act as Cloud Condensation Nuclei in the Wintertime Tropical North Atlantic Boundary Layer over Barbados Open
The number concentration and properties of aerosol particles serving as cloud condensation nuclei (CCN) are important for understanding cloud formation, particularly in the tropical Atlantic marine boundary layer (MBL) where marine cumulus…
View article: Interannual Variability in the Source Location of North African Dust Transported to the Amazon
Interannual Variability in the Source Location of North African Dust Transported to the Amazon Open
African dust is transported to South America (SA) every winter and spring. Hypotheses suggest that either Western or Central North Africa (e.g., Bodélé Depression) is the main source of transported dust, yet these notions remain largely un…
View article: Comment on acp-2022-57
Comment on acp-2022-57 Open
Abstract. African mineral dust is transported many thousands of kilometres from its source regions and, because of its ability to nucleate ice, it plays a major role in cloud glaciation around the globe. The ice-nucleating…
View article: The ice-nucleating activity of African mineral dust in the Caribbean boundary layer
The ice-nucleating activity of African mineral dust in the Caribbean boundary layer Open
African mineral dust is transported many thousands of kilometres from its source regions and, because of its ability to nucleate ice, it plays a major role in cloud glaciation around the globe. The ice-nucleating activity of desert dust is…
View article: Chasing dust across glacial-interglacial North Africa through radiogenic Sr-Nd-Hf-Pb isotopes of eolian deposits off the coast of West Africa.
Chasing dust across glacial-interglacial North Africa through radiogenic Sr-Nd-Hf-Pb isotopes of eolian deposits off the coast of West Africa. Open