Alireza Moallemi

Combustion Characteristics and Emission Factors of Trace Gases and Particulate Matter from Biomass Relevant to Canadian Wildfires: Overview of the 2024 BBCan Campaign

Amanda Hanashiro Moraes, Shakiba Talebian, Rowshon Afroz, Mohamad Al-Jabiri et autres

Key Points:• Laboratory burns of Canadian surface fuels show large differences in emissions between fuel types and combustion phases.• Methane emissions from burning human-altered peat (mixed with mulch) are double those of natural peat.• Results provide new emission data for Canadian fuels, …

ca, si, cn, es (code pays fourni par la source)

Laboratory transformations of black carbon from fresh biomass burning: changes in coating and mass absorption efficiency

Jesús Yus-Díez, Luka Drinovec, Joel C. Corbin, Jason S. Olfert et autres

Wildfires and open biomass burning emit climate-warming gases and particles into the atmosphere (IPCC, 2021). Light absorbing carbonaceous aerosols (LACs) emitted by such biomass burning events are a mixture of black carbon (BC) particles and other absorbing species, such as soluble light-absorbing …

si, ca (code pays fourni par la source)

Self-calibrating aerosol absorption measurements using co-located TDLAS and tunable-wavelength photothermal interferometry

Joel C. Corbin, Alireza Moallemi, Daniel Poitras, Timothy A. Sipkens et autres

Photothermal spectroscopy, and photothermal interferometry (PTI) in particular, has the potential to provide reference measurements of aerosol absorption coefficients βabn. Such βabn measurements represent a fundamental property of aerosols such as black carbon and brown carbon, the accurate knowledge of which is …

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Simplified fabrication of optical coatings for folded Jamin interferometers used for refractive index measurement of gases and aerosols

Daniel Poitras, Alireza Moallemi, Joel C. Corbin, J. Norooz Oliaee

In this work, we present the design and fabrication of optical coatings for the main optical component of a Folded Jamin Interferometer, focusing on simplifying their fabrication.

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Links between atmospheric aerosols and sea state in the Arctic Ocean

Alireza Moallemi, Alberto Alberello, Iris Thurnherr, Guangyu Li et autres

Sea spray emission is the largest mass flux of aerosols to the atmosphere with important impact on atmospheric radiative transfer. However, large uncertainties still exit in constraining this mass flux and its climate forcing, in particular in the Arctic, where sea ice …

ch, gb, it, au (code pays fourni par la source)

Characteristics and sources of fluorescent aerosols in the central Arctic Ocean

Ivo Beck, Alireza Moallemi, Benjamin Heutte, Jakob Pernov et autres

The Arctic is sensitive to cloud radiative forcing. Due to the limited number of aerosols present throughout much of the year, cloud formation is susceptible to the presence of cloud condensation nuclei and ice nucleating particles (INPs). Primary biological aerosol particles (PBAP) …

ch, fi, cy, fr, de, no, us, gb, se (code pays fourni par la source)

Concept, absolute calibration, and validation of a new benchtop laser imaging polar nephelometer

Alireza Moallemi, Robin L. Modini, Benjamin T. Brem, Barbara Bertozzi et autres

Polar nephelometers provide in situ measurements of aerosol angular light scattering and play an essential role in validating numerically calculated phase functions or inversion algorithms used in space-borne and land-based aerosol remote sensing. In this study, we present a prototype of a …

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Data archive for the peer-reviewed journal article "Concept, absolute calibration and validation of a new, bench-top laser imaging polar nephelometer"

Alireza Moallemi, Robin L. Modini, Philippe Giaccari, Benjamin T. Brem et autres

This data archive accompanying the peer-reviewed journal article "Concept, absolute calibration and validation of a new, bench-top laser imaging polar nephelometer". This paper was accepted in 2023 in Journal of Atmospheric Measurement Techniques. This data archive mainly contain the high level processed …

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Data archive for the peer-reviewed journal article "Concept, absolute calibration and validation of a new, bench-top laser imaging polar nephelometer"

Alireza Moallemi, Robin L. Modini, Philippe Giaccari, Benjamin T. Brem et autres

This data archive accompanying the peer-reviewed journal article "Concept, absolute calibration and validation of a new, bench-top laser imaging polar nephelometer". This paper was accepted in 2023 in Journal of Atmospheric Measurement Techniques. This data archive mainly contain the high level processed …

ch (code pays fourni par la source)

Supplementary material to "Concept, absolute calibration and validation of a new, bench-top laser imaging polar nephelometer"

Alireza Moallemi, Robin L. Modini, Benjamin T. Brem, Barbara Bertozzi et autres

Concept, absolute calibration and validation of a new, bench-top laser imaging polar nephelometer

Alireza Moallemi, Robin L. Modini, Benjamin T. Brem, Barbara Bertozzi et autres

Abstract. Polar nephelometers provide in situ measurements of aerosol angular light scattering and play an essential role in validating numerically calculated phase functions or inversion algorithms used in space-borne and land-based aerosol remote sensing. In this study, we present a prototype of …

ch (code pays fourni par la source)

Information content and aerosol property retrieval potential for different types of in situ polar nephelometer data

Alireza Moallemi, Robin L. Modini, Tatyana Lapyonok, Anton Lopatin et autres

Polar nephelometers are in situ instruments used to measure the angular distribution of light scattered by aerosol particles. These types of measurements contain substantial information about the properties of the aerosol being probed (e.g. concentrations, sizes, refractive indices, shape parameters), which can …

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