Glenn S. Diskin
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View article: Closing the gap: an algorithmic approach to reconciling in-situ and remotely sensed aerosol properties
Closing the gap: an algorithmic approach to reconciling in-situ and remotely sensed aerosol properties Open
Remote sensing retrievals of atmospheric particle (i.e., aerosol) properties, such as those from lidars and polarimeters, are increasingly used to study aerosol effects on critical cloud and marine boundary layer processes. To ensure the r…
View article: UFS-RAQMS global atmospheric composition model: TROPOMI CO column assimilation
UFS-RAQMS global atmospheric composition model: TROPOMI CO column assimilation Open
This paper describes a new version of the Real-time Air Quality Modeling System (RAQMS) which uses National Unified Operational Prediction Capability (NUOPC) coupling to combine the RAQMS chemical mechanism with the Global Ensemble Forecas…
View article: Aerosol Fine Mode Fraction Retrievals for the Marine Boundary Layer From Airborne Lidar
Aerosol Fine Mode Fraction Retrievals for the Marine Boundary Layer From Airborne Lidar Open
Separating contributions of the fine and coarse modes is important for characterizing aerosols and assessing their impacts. This work develops retrievals of fine mode fraction (FMF) from lidar observables for the marine boundary layer (MBL…
View article: The AquaVIT-4 intercomparison of atmospheric hygrometers
The AquaVIT-4 intercomparison of atmospheric hygrometers Open
The AquaVIT-4 intercomparison of atmospheric hygrometers was conducted at the AIDA (Aerosol Interaction and Dynamics in the Atmosphere) climate simulation chamber of the Karlsruhe Institute of Technology (KIT), Germany, in March–April 2022…
View article: Trace Organic Gas Analyzer Time-of-Flight mass spectrometer (TOGA-TOF) system for airborne observations of formaldehyde
Trace Organic Gas Analyzer Time-of-Flight mass spectrometer (TOGA-TOF) system for airborne observations of formaldehyde Open
Formaldehyde (HCHO) is a ubiquitous atmospheric constituent, originating from primary emissions (natural and anthropogenic) and secondary production via the oxidation of volatile organic compounds (VOCs). In addition to being a regulated p…
View article: Supplementary material to "Trace Organic Gas Analyzer Time-of-Flight mass spectrometer (TOGA-TOF) system for airborne observations of formaldehyde"
Supplementary material to "Trace Organic Gas Analyzer Time-of-Flight mass spectrometer (TOGA-TOF) system for airborne observations of formaldehyde" Open
View article: Particulate Matter Concentrations Derived from Airborne High Spectral Resolution Lidar Measurements Using Machine Learning Regression
Particulate Matter Concentrations Derived from Airborne High Spectral Resolution Lidar Measurements Using Machine Learning Regression Open
We use measurements of near-surface aerosol backscatter, extinction, and depolarization acquired by four NASA Langley Research Center airborne High Spectral Resolution Lidars (HSRLs) in machine learning (ML) regression algorithms to derive…
View article: Radiative Forcing and Ozone Depletion of a Decade of Satellite Megaconstellation Missions
Radiative Forcing and Ozone Depletion of a Decade of Satellite Megaconstellation Missions Open
Satellite megaconstellations (SMCs) are driving rapid increases in rocket launch and re-entry rates, emitting pollutants throughout the atmosphere. The environmental cost of SMCs lacks characterization to determine the need for regulation.…
View article: Observationally Constrained NO <sub>x</sub> ‐Catalyzed Ozone Production in the Upper Troposphere During the Asian Summer Monsoon
Observationally Constrained NO <sub>x</sub> ‐Catalyzed Ozone Production in the Upper Troposphere During the Asian Summer Monsoon Open
Intense and frequent convection occurring during the Asian Summer Monsoon (ASM) rapidly transports surface emissions to the upper troposphere (UT). Depending on their chemical reactivities, pollutants transported to the UT via this mechani…
View article: Intercomparison of wind speed, temperature, and humidity data between dropsondes and aircraft in situ measurements
Intercomparison of wind speed, temperature, and humidity data between dropsondes and aircraft in situ measurements Open
Airborne measurements of wind speed and direction, temperature, and relative humidity are critical due to their importance for atmospheric processes. Field campaigns with multiple coordinated aircraft present challenges when combining data…
View article: PISTON and CAMP <sup>2</sup> Ex observations of the fundamental modes of aerosol vertical variability in the Northwest Tropical Pacific and Maritime Continent’s Monsoon
PISTON and CAMP <sup>2</sup> Ex observations of the fundamental modes of aerosol vertical variability in the Northwest Tropical Pacific and Maritime Continent’s Monsoon Open
While most large-scale smoke advection occurs within the free troposphere, Maritime Continent smoke transport is suspected to be unique in its long-range, near-surface transport. Such a pathway likely creates strong gradients and uncertain…
View article: The Asian Summer Monsoon Chemical and Climate Impact Project (ACCLIP): An Overview
The Asian Summer Monsoon Chemical and Climate Impact Project (ACCLIP): An Overview Open
View article: Aerosol–cloud interactions in cirrus clouds based on global-scale airborne observations and machine learning models
Aerosol–cloud interactions in cirrus clouds based on global-scale airborne observations and machine learning models Open
Cirrus cloud formation and evolution are subject to the influences of thermodynamic and dynamic conditions and aerosols. This study developed near global-scale in situ aircraft observational datasets based on 12 field campaigns that spanne…
View article: Age of smoke sampled by aircraft during FIREX-AQ: methods and critical evaluation
Age of smoke sampled by aircraft during FIREX-AQ: methods and critical evaluation Open
The age of smoke, meaning the time elapsed since it was produced in a fire, is an important parameter for interpreting measurements of evolving smoke composition. This study describes the smoke age estimates developed for large plumes samp…
View article: Technical Note: Identifying Biomass Burning Emissions During ASIA-AQ Using Greenhouse Gas Enhancement Ratios
Technical Note: Identifying Biomass Burning Emissions During ASIA-AQ Using Greenhouse Gas Enhancement Ratios Open
Biomass burning (BB) is a primary source of atmospheric chemistry reactants, aerosols, and greenhouse gases. Smoke plumes have air quality impacts local to the fire itself and regionally via long distance transport. Open burning of agricul…
View article: Supplementary material to "Technical Note: Identifying Biomass Burning Emissions During ASIA-AQ Using Greenhouse Gas Enhancement Ratios"
Supplementary material to "Technical Note: Identifying Biomass Burning Emissions During ASIA-AQ Using Greenhouse Gas Enhancement Ratios" Open
View article: Measurement report: Characterization of aerosol hygroscopicity over Southeast Asia during the NASA CAMP <sup>2</sup> Ex campaign
Measurement report: Characterization of aerosol hygroscopicity over Southeast Asia during the NASA CAMP <sup>2</sup> Ex campaign Open
This study characterizes the spatial and vertical nature of aerosol hygroscopicity in Southeast Asia and relates it to aerosol composition and sources. Aerosol hygroscopicity via the light scattering hygroscopic growth factor, f(RH), is ca…
View article: The NASA ACTIVATE Mission
The NASA ACTIVATE Mission Open
The NASA Aerosol Cloud Meteorology Interactions over the Western Atlantic Experiment (ACTIVATE) conducted 162 joint flights with two aircraft over the northwest Atlantic to study aerosol–cloud interactions (ACIs), which represent the large…
View article: Supplementary material to "Technical note: Apportionment of Southeast Asian Biomass Burning and Urban Influence via In Situ Trace Gas Enhancement Ratios"
Supplementary material to "Technical note: Apportionment of Southeast Asian Biomass Burning and Urban Influence via In Situ Trace Gas Enhancement Ratios" Open
View article: Technical note: Apportionment of Southeast Asian Biomass Burning and Urban Influence via In Situ Trace Gas Enhancement Ratios
Technical note: Apportionment of Southeast Asian Biomass Burning and Urban Influence via In Situ Trace Gas Enhancement Ratios Open
Biomass burning and urban emissions are major contributors to poor air quality throughout Southeast Asia. Understanding these emissions is critical for predicting and mitigating their health impacts. The Cloud, Aerosol and Monsoon Processe…
View article: The AquaVIT-4 intercomparison of atmospheric hygrometers
The AquaVIT-4 intercomparison of atmospheric hygrometers Open
The AquaVIT-4 intercomparison of atmospheric hygrometers was conducted at the AIDA climate simulation chamber of the Karlsruhe Institute of Technology (KIT), Germany, in March–April 2022, within the framework of the HEMERA H2020 EU project…
View article: Supplementary material to "The AquaVIT-4 intercomparison of atmospheric hygrometers"
Supplementary material to "The AquaVIT-4 intercomparison of atmospheric hygrometers" Open
View article: Sensitivity of aerosol and cloud properties to coupling strength of marine boundary layer clouds over the northwest Atlantic
Sensitivity of aerosol and cloud properties to coupling strength of marine boundary layer clouds over the northwest Atlantic Open
Quantifying the degree of coupling between marine boundary layer (MBL) clouds and the surface is critical for understanding the evolution of low clouds and explaining the vertical distribution of aerosols and microphysical cloud properties…
View article: Advances in an OH reactivity instrument for airborne field measurements
Advances in an OH reactivity instrument for airborne field measurements Open
Hydroxyl radical (OH) reactivity, which is the inverse lifetime of the OH radical, provides information on the burden of air pollutants, since almost all air pollutants react with OH. OH reactivity measurements from field experiments can h…
View article: Tropospheric aerosols over the western North Atlantic Ocean during the winter and summer deployments of ACTIVATE 2020: life cycle, transport, and distribution
Tropospheric aerosols over the western North Atlantic Ocean during the winter and summer deployments of ACTIVATE 2020: life cycle, transport, and distribution Open
The Aerosol Cloud meTeorology Interactions oVer the western ATlantic Experiment (ACTIVATE) is a NASA mission to characterize aerosol–cloud interactions over the western North Atlantic Ocean (WNAO). Such characterization requires understand…
View article: Widespread trace bromine and iodine in remote tropospheric non-sea-salt aerosols
Widespread trace bromine and iodine in remote tropospheric non-sea-salt aerosols Open
Reactive halogens catalytically destroy O3 and therefore affect (1) stratospheric O3 depletion and (2) the oxidative capacity of the troposphere. Reactive halogens also partition into the aerosol phase, but what governs halogen-aerosol par…
View article: Investigating reduced-dimensional variability in aircraft-observed aerosol–cloud parameters
Investigating reduced-dimensional variability in aircraft-observed aerosol–cloud parameters Open
Aerosol-cloud interactions contribute significant uncertainty to modern climate model predictions. Analysis of complex observed aerosol-cloud parameter relationships is a crucial piece of reducing this uncertainty. Here, we apply two machi…
View article: Fine Particle pH and Sensitivity to NH<sub>3</sub> and HNO<sub>3</sub> over South Korea During KORUS-AQ
Fine Particle pH and Sensitivity to NH<sub>3</sub> and HNO<sub>3</sub> over South Korea During KORUS-AQ Open
Using a new approach that constrains thermodynamic modeling of aerosol composition with measured gas-to-particle partitioning of inorganic nitrate, we estimate the acidity levels for aerosol sampled in the South Korean planetary boundary l…
View article: Closing the Gap: An Algorithmic Approach to Reconciling In-Situ and Remotely Sensed Aerosol Particle Properties
Closing the Gap: An Algorithmic Approach to Reconciling In-Situ and Remotely Sensed Aerosol Particle Properties Open
Remote sensors such as lidars and polarimeters are increasingly being used to understand atmospheric aerosol particles and their role in critical cloud and marine boundary layer processes. Therefore, it is essential to ensure these instrum…
View article: Intercomparison of wind speed, temperature, and humidity data between dropsondes and aircraft in situ measurements
Intercomparison of wind speed, temperature, and humidity data between dropsondes and aircraft in situ measurements Open
Airborne measurements of winds, temperature (T), and relative humidity (RH) are critical due to their importance for atmospheric processes. Data quality from these in situ measurements is difficult to assess and requires independent observ…