Physical and chemical properties of ice-nucleating particles in the Arctic
EMSL Project ID
50806
Abstract
Ice-nucleating particles (INPs) influence the frequency and properties of clouds in the Arctic, which, in turn, influences climate. Hence, to improve predictions of climate in the Arctic, information on the physical and chemical properties of INPs in the region are needed. Using techniques developed at EMSL, we will help unravel the physical and chemical properties of INPs in the Arctic. Specially, we will use computer-controlled scanning electron microscopy with energy dispersive X-ray spectroscopy (CCSEM/EDX) at EMSL to determine physical and chemical properties of aerosol particles collected in the High Arctic free troposphere and Arctic marine boundary layer. These physical and chemical properties will then be correlated with concentrations of INPs collected in parallel to the samples collected for CCSEM/EDX. From the correlations, we will help establish physical and chemical properties of INPs in the Arctic. Questions to be addressed through the current proposal include the following: 1) What are the chemical and physical properties of INPs in the Arctic atmosphere? 2) How do the chemical and physical properties of INPs change with season and altitude in the Arctic? 3) What is the effect of pollution levels in the Arctic on the chemical and physical properties INPs in this region? The results from these studies should lead to improved predictions of INPs and, ultimately, improved models of climate in the Arctic.
Project Details
Project type
Large-Scale EMSL Research
Start Date
2019-10-01
End Date
2021-09-30
Status
Closed
Released Data Link
Team
Principal Investigator
Co-Investigator(s)