Investigating Aerosol Aging Processes in the Eastern North Atlantic
EMSL Project ID
50835
Abstract
Aerosols, cloud, and radiation interactions regulate several key aspects of the Earth's hydrogeological cycle, weather, and climate system. The number concentration of cloud condensation nuclei (CCN) is an important parameter to understand the microphysical properties of clouds. The aerosol indirect effect on marine low clouds is one of the major uncertainties in atmospheric models. The incomplete understating of the aerosol properties is mostly responsible for this large uncertainties. With the proposed study, we plan to combine continuous CCN data from the DOE's Atmospheric Radiation Measurement (ARM) Eastern North Atlantic (ENA) site on Graciosa Island (at sea level) with measurements collected during the summer IOP of the DOE Aerosol and Cloud Experiments in the Eastern North Atlantic (ACE-ENA) field campaign at Mt. Pico station (Pico Island, 2225 m a.s.l.), in 2017 in the Azores. In addition, we will utilize CCN and CDNC measurements collected on board the helicopter-borne platform ACTOS (Airborne Cloud Turbulence Observation System) to close the vertical gap between the sea level and the mountain-site. In this study we will combine the analysis of CCN data from the ENA-ARM site, vertical profile data from the helicopter-borne platform ACTOS, and measurements at Mt. Pico station with a detailed single particle analysis of samples with the analytical techniques available at EMSL.
Project Details
Project type
Large-Scale EMSL Research
Start Date
2019-10-01
End Date
2021-12-31
Status
Closed
Released Data Link
Team
Principal Investigator
Co-Investigator(s)
Team Members
Related Publications
Fierce L., T.B. Onasch, C. Cappa, C. Mazzoleni, S. China, J. Bhandari, and P. Davidovits, et al. 2020. "Radiative Absorption Enhancements By Black Carbon Controlled By Particle-to-particle Heterogeneity In Composition." Proceedings of the National Academy of Sciences of the United States of America 117, no. 10:5196-5203. PNNL-SA-151749. doi:10.1073/pnas.1919723117