2013-2014 Science Planning Summaries
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In-situ observations of maritime sources/sinks of aerosol and cloud condensation nuclei at Palmer Station, Antarctica: Portable AERosol Observing System (PAEROS) pilot phase

Program Manager:
Dr. Peter Milne

Event Number: O-215-L/P

ASC POC/Implementer:
Samina Ouda

Dr. Gregory C Roberts (Principal Investigator)

University of California San Diego
Scripps Institution of Oceanography
La Jolla, California

Supporting Stations:  ARSV Laurence M. Gould, Palmer Station
Research Locations:  Western Antarctic Peninsula

Project Description:
This project will deploy a miniaturized aerosol package (PAEROS) at Palmer Station to measure aerosol physical properties, cloud condensation nuclei (CCN), radiative fluxes and meteorological parameters. Research objectives include: (1) to identify sources and sinks of aerosol and CCN properties of the Southern Ocean with respect to atmospheric conditions, e.g., wind speed, back trajectories, solar fluxes and cloud cover; (2) determine the contribution of sources, e.g., sea salt, biogenic, to remote marine aerosol using the observed physico-chemical aerosol properties; (3) compare marine aerosol properties to those originating from the Antarctic plateau to better understand processes related to particle formation and the evolution of aerosol and CCN in Antarctica; and (4) demonstrate the technical capability of PAEROS by operating the observing system in a harsh environment at a remote location.

Field Season Overview:
Two field team members will sail from Punta Arenas, Chile on the ARSV Laurence M. Gould (LMG) to Palmer Station. While on the LMG they will mount a miniaturized aerosol package (PAEROS) instrument to the rails of the vessel that will collect a data set during Southern Ocean transects. They will install a similar instrument at Palmer Station. While on station they will instruct a research assistant on how to perform weekly routine maintenance on the instrument, and to copy and send data sets back to their home institution.

Deploying Team Members:

  • Craig Corrigan
  • Gregory Roberts (PI)

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