Daniel Knopf

Towards Aerosol-Ice Formation Closure – Chemical Imaging Investigation of Aerosol and Ice Nucleating Particles

Lead Institution

State University of New York at Stony Brook

Principal Investigator

Daniel Knopf

Project type

Large-Scale EMSL Research

Prediction of ice nucleating particle (INP) number concentrations from ambient aerosol particles represents an urgent and challenging issue when simulating cloud processes in climate models. A recent…

Heterogeneous Ice Nucleation from Biomass Burning Particles: The Effect of Chemical
Composition and Chemical Aging

Lead Institution

State University of New York at Stony Brook

Principal Investigator

Daniel Knopf

Project type

Large-Scale EMSL Research

Organic material is ubiquitous in atmospheric particles. This proposal focuses on potential ice nucleation (IN) activity of biomass burning aerosol (BBA). Biomass burning is a major source of gases…

Investigation of the Aerosol Impact on the Surface-Atmosphere Interactions

Lead Institution

Purdue University

Principal Investigator

Alexander Laskin

Project type

FICUS Research

This project will provide a physicochemical description of individual atmospheric particles collected in the SAIL experiment, where we will conduct systematic studies of composition and physical…

Chemical characterization of organic and biogenic atmospheric aerosol particles and their potential to initiate ice crystal formation

Lead Institution

State University of New York at Stony Brook

Principal Investigator

Daniel Knopf

Project type

Large-Scale EMSL Research

Atmospheric aerosol particles can affect the environment by changing the global radiative budget, increasing air pollution and impacting air quality with subsequent consequences for health related…

Chemical Imaging of Particles from TRACER field study

Lead Institution

Washington University in St. Louis

Principal Investigator

Rajan Chakrabarty

Project type

Large-Scale EMSL Research

This project will provide a physico-chemical description of individual atmospheric particles collected during the TRACER campaign, during which we will conduct systematic studies of composition and…

Atmospheric Chemistry of Biomass Burning Aerosol

Lead Institution

State University of New York at Stony Brook

Principal Investigator

Daniel Knopf

Project type

Large-Scale EMSL Research

Biomass burning aerosols (BBA) are one of the most ubiquitous organic aerosol types with a source strength on the same order of magnitude as fossil fuel combustion. BBA have significant effects on…

Ice Nucleation Properties of Authentic Atmospheric Marine Particles

Lead Institution

Sonoma Technology

Principal Investigator

Ryan Moffet

Project type

Large-Scale EMSL Research

The effect that aerosol particles have on climate is highly uncertain and has garnered much attention in recent years. Specifically, the effect that aerosol particles have on cloud formation is one…

Fundamental Studies of Ice Nucleation Using Environmental Scanning Electron Microscope (ESEM)

Lead Institution

Purdue University

Principal Investigator

Alexander Laskin

Project type

Large-Scale EMSL Research

The proposed research is to demonstrate applicability of a novel experimental platform for systematic studies of ice nucleation efficiency of atmospheric particles with determination of…

The Effect of Biogenic-Anthropogenic Interactions on the Physical and Chemical Properties of Atmospheric Organic Aerosols

Lead Institution

University of California, Irvine

Principal Investigator

Sergey Nizkorodov

Project type

Special Science

Understanding the effect of biogenic-anthropogenic interactions on the chemical composition and physical properties of organic aerosols (OA) is important for accurate modeling of the effect of OA on…

Physicochemical Analysis and Ice Nucleation Potential of Particles from a Tropical Terrestrial Biosphere Impacted by Anthropogenic Emissions

Lead Institution

State University of New York at Stony Brook

Principal Investigator

Daniel Knopf

Project type

Large-Scale EMSL Research

The Amazonian region has been documented to be a source of a wide range of aerosol particle types including biogenic secondary organic aerosol (SOA) and salts, primary biological aerosol particles,…

Analysis of Mixing States and Morphology of Individual Particles for Improved Representation in Atmospheric Models

Lead Institution

Sonoma Technology

Principal Investigator

Ryan Moffet

Project type

Large-Scale EMSL Research

Atmospheric aerosols affect the climate directly by absorbing and scattering radiation and indirectly by impacting the properties and lifetimes of clouds. Aerosol processes, such as wet removal,…

Chemical Imaging and Molecular Characterization of Solid Organic Particles Discovered in the Area of Southern Great Plains

Lead Institution

Lawrence Berkeley National Laboratory

Principal Investigator

Mary Gilles

Project type

FICUS ARM Research

Recent discovery of solid (glassy) atmospheric soil organic particles (ASOP), emitted through atmosphere-land-surface interactions in the area of Southern Great Plains (SGP) suggests that ASOP may…

Ice Nucleation Propensity of Biological Particles

Lead Institution

Xiamen University

Principal Investigator

Bingbing Wang

Project type

Large-Scale EMSL Research

The proposed study will investigate the ice nucleation propensity of atmospheric biological particles using a novel experimental platform developed in EMSL by our group. We will determine…

Characterization of sea spray aerosol under future ocean conditions with implications for cloud formation processes

Lead Institution

State University of New York at Stony Brook

Principal Investigator

Josephine Aller

Project type

Large-Scale EMSL Research

Oceans cover 71% of the Earth's surface, contain nearly half the global primary productivity, and are a major source of atmospheric Sea Spray Aerosol (SSA) representing one of the most uncertain…

Oceans as a source of airborne metabolites and primary biological aerosol particles

Lead Institution

State University of New York at Stony Brook

Principal Investigator

Daniel Knopf

Project type

Large-Scale EMSL Research

Ocean waters, which cover 71% of the Earth's surface, contain dissolved organic carbon (DOC) including lipids, humics and organic acids, and free macromolecules, the precursor material for the…

Chemical Imaging of Airborne Soil Organic Particles from Land-atmosphere Interactions

Lead Institution

Purdue University

Principal Investigator

Alexander Laskin

Project type

Large-Scale EMSL Research

Recent discovery of solid (glassy) atmospheric soil organic particles (ASOP), emitted through atmosphere-land-surface interactions in the area of Southern Great Plains (SGP) suggests that ASOP may…

Aerosol-Ice Formation Closure Study Applying Ambient Aerosol Particles

Lead Institution

State University of New York at Stony Brook

Principal Investigator

Daniel Knopf

Project type

Large-Scale EMSL Research

Atmospheric ice nucleation represents one of the least understood atmospheric processes, hampering prediction of cloud processes and climate. Whereas the aerosol community has widely conducted…

Environmental Photochemical Catalysis and Microphysical Properties of Fe-Organic Aerosols

Lead Institution

Purdue University

Principal Investigator

Alexander Laskin

Project type

Large-Scale EMSL Research

The intent of this collaborative research is to investigate photo-catalytic effects of atmospheric aging on the chemical composition and the microphysical properties of secondary organic aerosol (SOA…

Oxidation of atmospheric organic particulate matter

Lead Institution

University of British Columbia

Principal Investigator

Allan Bertram

Project type

Exploratory Research

Organic particulate matter is abundant throughout the atmosphere. These organic particles may contribute significantly to the radiative forcing, thus, changing the Earth's climate. Additionally,…

Capturing the influence of ocean biology on aerosol collected in the remote region of the eastern north Atlantic

Lead Institution

State University of New York at Stony Brook

Principal Investigator

Josephine Aller

Project type

Exploratory Research

Cloud lifetime and optical properties, as well as precipitation, depend heavily on aerosol size, concentration, and chemical properties. Oceans which cover 71% of the Earth's surface are a major…

EMSL Science Overview

Daniel Knopf

Projects

Towards Aerosol-Ice Formation Closure – Chemical Imaging Investigation of Aerosol and Ice Nucleating Particles

Heterogeneous Ice Nucleation from Biomass Burning Particles: The Effect of Chemical
Composition and Chemical Aging

Investigation of the Aerosol Impact on the Surface-Atmosphere Interactions

Chemical characterization of organic and biogenic atmospheric aerosol particles and their potential to initiate ice crystal formation

Chemical Imaging of Particles from TRACER field study

Atmospheric Chemistry of Biomass Burning Aerosol

Ice Nucleation Properties of Authentic Atmospheric Marine Particles

Fundamental Studies of Ice Nucleation Using Environmental Scanning Electron Microscope (ESEM)

The Effect of Biogenic-Anthropogenic Interactions on the Physical and Chemical Properties of Atmospheric Organic Aerosols

Physicochemical Analysis and Ice Nucleation Potential of Particles from a Tropical Terrestrial Biosphere Impacted by Anthropogenic Emissions

Analysis of Mixing States and Morphology of Individual Particles for Improved Representation in Atmospheric Models

Chemical Imaging and Molecular Characterization of Solid Organic Particles Discovered in the Area of Southern Great Plains

Ice Nucleation Propensity of Biological Particles

Characterization of sea spray aerosol under future ocean conditions with implications for cloud formation processes

Oceans as a source of airborne metabolites and primary biological aerosol particles

Chemical Imaging of Airborne Soil Organic Particles from Land-atmosphere Interactions

Aerosol-Ice Formation Closure Study Applying Ambient Aerosol Particles

Environmental Photochemical Catalysis and Microphysical Properties of Fe-Organic Aerosols

Oxidation of atmospheric organic particulate matter

Capturing the influence of ocean biology on aerosol collected in the remote region of the eastern north Atlantic