M. Z. Markovic
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View article: Hydrogen Chloride (HCl) at Ground Sites During CalNex 2010 and Insight Into Its Thermodynamic Properties
Hydrogen Chloride (HCl) at Ground Sites During CalNex 2010 and Insight Into Its Thermodynamic Properties Open
Gas phase hydrogen chloride (HCl) was measured at Pasadena and San Joaquin Valley (SJV) ground sites in California during May and June 2010 as part of the CalNex study. Observed mixing ratios were on average 0.83 ppbv at Pasadena, ranging …
View article: Limited impact of sulfate-driven chemistry on black carbon aerosol aging in power plant plumes
Limited impact of sulfate-driven chemistry on black carbon aerosol aging in power plant plumes Open
The aging of refractory black carbon (rBC) aerosol by sulfate-driven chemistry has been constrained in coal-fired power-plant plumes using the NOAA WP-3D research aircraft during the Southern Nexus (SENEX) study, which took place in the So…
View article: Modeling the diurnal variability of agricultural ammonia in Bakersfield, California, during the CalNex campaign
Modeling the diurnal variability of agricultural ammonia in Bakersfield, California, during the CalNex campaign Open
NH3 retrievals from the NASA Tropospheric Emission Spectrometer (TES), as well as surface and aircraft observations of NH3(g) and submicron NH4(p), are used to evaluate modeled concentrations of NH3(g) and NH4(p) from the Community Multisc…
View article: In situ measurements of water uptake by black carbon‐containing aerosol in wildfire plumes
In situ measurements of water uptake by black carbon‐containing aerosol in wildfire plumes Open
Water uptake by black carbon (BC)‐containing aerosol was quantified in North American wildfire plumes of varying age (1 to ~40 h old) sampled during the SEAC 4 RS mission (2013). A Humidified Dual SP2 (HD‐SP2) is used to optically size BC‐…
View article: Aircraft measurements of black carbon vertical profiles show upper tropospheric variability and stability
Aircraft measurements of black carbon vertical profiles show upper tropospheric variability and stability Open
We present new data sets of black carbon (BC) aerosol mass mixing ratio (MMR) obtained from aircraft missions over North America, Europe, the Arctic, and the outflow region of Saharan Africa before and after trans‐Atlantic transport. The d…
View article: Instrumentation and measurement strategy for the NOAA SENEX aircraftcampaign as part of the Southeast Atmosphere Study 2013
Instrumentation and measurement strategy for the NOAA SENEX aircraftcampaign as part of the Southeast Atmosphere Study 2013 Open
Natural emissions of ozone-and-aerosol-precursor gases such as isoprene and monoterpenes are high in the southeastern US. In addition, anthropogenic emissions are significant in the southeastern US and summertime photochemistry is rapid. T…
View article: Aerosol optical properties in the southeastern United States in summer – Part 1: Hygroscopic growth
Aerosol optical properties in the southeastern United States in summer – Part 1: Hygroscopic growth Open
Aircraft observations of meteorological, trace gas, and aerosol properties were made during May–September 2013 in the southeastern United States (US) under fair-weather, afternoon conditions with well-defined planetary boundary layer struc…
View article: Aerosol optical properties in the southeastern United States in summer – Part 2: Sensitivity of aerosol optical depth to relative humidity and aerosol parameters
Aerosol optical properties in the southeastern United States in summer – Part 2: Sensitivity of aerosol optical depth to relative humidity and aerosol parameters Open
Aircraft observations of meteorological, trace gas, and aerosol properties were made between May and September 2013 in the southeastern United States (US). Regionally representative aggregate vertical profiles of median and interdecile ran…
View article: Modeling the Diurnal Variability of Agricultural Ammonia in Bakersfield, California during CalNex
Modeling the Diurnal Variability of Agricultural Ammonia in Bakersfield, California during CalNex Open
NH3 retrievals from the NASA Tropospheric Emission Spectrometer (TES), as well as surface and aircraft observations of NH3(g) and submicron NH4(p), are to used to evaluate modelled concentrations of NH3(g) and NH4(p) from the Community Mul…
View article: Instrumentation and Measurement Strategy for the NOAA SENEX Aircraft Campaign as Part of the Southeast Atmosphere Study 2013
Instrumentation and Measurement Strategy for the NOAA SENEX Aircraft Campaign as Part of the Southeast Atmosphere Study 2013 Open
The Southeast United States (US) might not have warmed as much as the rest of the country over the past 50-100 years. Providing an improved understanding of this potential anomaly, and specifically the roles played by aerosols, was one of …
View article: A light-weight, high-sensitivity particle spectrometer for PM2.5 aerosol measurements
A light-weight, high-sensitivity particle spectrometer for PM2.5 aerosol measurements Open
A light-weight, low-cost optical particle spectrometer for measurements of aerosol number concentrations and size distributions has been designed, constructed, and demonstrated. The spectrometer is suitable for use on small, unmanned aeria…
View article: Aerosol optical properties in the southeastern United States in summer – Part 2: Sensitivity of aerosol optical depth to relative humidity and aerosol parameters
Aerosol optical properties in the southeastern United States in summer – Part 2: Sensitivity of aerosol optical depth to relative humidity and aerosol parameters Open
Aircraft observations of meteorological, trace gas, and aerosol properties were made between May and September 2013. Regionally representative aggregate vertical profiles of median and interdecile ranges of the measured parameters were con…
View article: Sources, seasonality, and trends of southeast US aerosol: an integrated analysis of surface, aircraft, and satellite observations with the GEOS-Chem chemical transport model
Sources, seasonality, and trends of southeast US aerosol: an integrated analysis of surface, aircraft, and satellite observations with the GEOS-Chem chemical transport model Open
We use an ensemble of surface (EPA CSN, IMPROVE, SEARCH, AERONET), aircraft (SEAC4RS), and satellite (MODIS, MISR) observations over the southeast US during the summer–fall of 2013 to better understand aerosol sources in the region and the…
View article: Aerosol optical properties in the southeastern United States in summer – Part 1: Hygroscopic growth
Aerosol optical properties in the southeastern United States in summer – Part 1: Hygroscopic growth Open
Aircraft observations of meteorological, trace gas, and aerosol properties were made during May–September 2013 in the southeastern United States (US) under fair-weather, afternoon conditions with well-defined planetary boundary layer struc…
View article: Corrigendum to "In situ vertical profiles of aerosol extinction, mass, and composition over the southeast United States during SENEX and SEAC<sup>4</sup>RS: observations of a modest aerosol enhancement aloft" published in Atmos. Chem. Phys., 15, 7085–7102, 2015
Corrigendum to "In situ vertical profiles of aerosol extinction, mass, and composition over the southeast United States during SENEX and SEAC<sup>4</sup>RS: observations of a modest aerosol enhancement aloft" published in Atmos. Chem. Phys., 15, 7085–7102, 2015 Open
No abstract available.
View article: Brown carbon aerosol in the North American continental troposphere: sources, abundance, and radiative forcing
Brown carbon aerosol in the North American continental troposphere: sources, abundance, and radiative forcing Open
Chemical components of organic aerosol (OA) selectively absorb light at short wavelengths. In this study, the prevalence, sources, and optical importance of this so-called brown carbon (BrC) aerosol component are investigated throughout th…
View article: Sources, seasonality, and trends of Southeast US aerosol: an integrated analysis of surface, aircraft, and satellite observations with the GEOS-Chem chemical transport model
Sources, seasonality, and trends of Southeast US aerosol: an integrated analysis of surface, aircraft, and satellite observations with the GEOS-Chem chemical transport model Open
We use an ensemble of surface (EPA CSN, IMPROVE, SEARCH, AERONET), aircraft (SEAC4RS), and satellite (MODIS, MISR) observations over the Southeast US during the summer-fall of 2013 to better understand aerosol sources in the region and the…
View article: In situ vertical profiles of aerosol extinction, mass, and composition over the southeast United States during SENEX and SEAC <sup>4</sup> RS: observations of a modest aerosol enhancement aloft
In situ vertical profiles of aerosol extinction, mass, and composition over the southeast United States during SENEX and SEAC <sup>4</sup> RS: observations of a modest aerosol enhancement aloft Open
Vertical profiles of submicron aerosol from in situ aircraft-based measurements were used to construct aggregate profiles of chemical, microphysical, and optical properties. These vertical profiles were collected over the southeastern Unit…
View article: Airborne measurements of the atmospheric emissions from a fuel ethanol refinery
Airborne measurements of the atmospheric emissions from a fuel ethanol refinery Open
Ethanol made from corn now constitutes approximately 10% of the fuel used in gasoline vehicles in the U.S. The ethanol is produced in over 200 fuel ethanol refineries across the nation. We report airborne measurements downwind from Decatur…
View article: Evaluation of the particle infiltration efficiency of three passive samplers and the PS-1 active air sampler
Evaluation of the particle infiltration efficiency of three passive samplers and the PS-1 active air sampler Open
The particle infiltration efficiencies (PIE) of three passive and one active air samplers were evaluated under field conditions. A wide-range particle spectrometer operating in the 250–4140 nm range was used to acquire highly temporally re…
View article: Revealing important nocturnal and day‐to‐day variations in fire smoke emissions through a multiplatform inversion
Revealing important nocturnal and day‐to‐day variations in fire smoke emissions through a multiplatform inversion Open
We couple airborne, ground‐based, and satellite observations; conduct regional simulations; and develop and apply an inversion technique to constrain hourly smoke emissions from the Rim Fire, the third largest observed in California, USA. …
View article: Airborne measurements of the atmospheric emissions from a fuel ethanol refinery
Airborne measurements of the atmospheric emissions from a fuel ethanol refinery Open
Ethanol made from corn now constitutes approximately 10% of the fuel used in gasoline vehicles in the U.S. The ethanol is produced in over 200 fuel ethanol refineries across the nation. We report airborne measurements downwind from Decatur…
View article: Brown carbon aerosol in the North American continental troposphere: sources, abundance, and radiative forcing
Brown carbon aerosol in the North American continental troposphere: sources, abundance, and radiative forcing Open
Chemical components of organic aerosol selectively absorb light at short wavelengths. In this study, the prevalence, sources, and optical importance of this so-called brown carbon (BrC) aerosol component are investigated throughout the Nor…
View article: In situ vertical profiles of aerosol extinction, mass, and composition over the southeast United States during SENEX and SEAC <sup>4</sup> RS: observations of a modest aerosol enhancement aloft
In situ vertical profiles of aerosol extinction, mass, and composition over the southeast United States during SENEX and SEAC <sup>4</sup> RS: observations of a modest aerosol enhancement aloft Open
Vertical profiles of submicron aerosol over the southeastern United States (SEUS) during the summertime from in situ aircraft-based measurements were used to construct aggregate profiles of chemical, microphysical, and optical properties. …