2022-2023 Science Planning Summary
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2022-2023 USAP Field Season
Project Detail

Project Title

Collection of atmospheric air for the NOAA/Global Monitoring Division (GMD) worldwide flask-sampling network

Photo by Ken Keenan. Image courtesy of NSF/USAP Photo Library. Creative Commons CC BY-NC-ND 4.0
O-264-P Research Location(s): Terra Lab


Event Number:
NSF / NOAA Agreement

Program Director:
Dr. David Porter

ASC POC/Implementer:
John Rand / Jamee Johnson

Principal Investigator(s)

Dr. Ariel NMI Stein
National Oceanic and Atmospheric Administration
Global Monitoring Division (GMD)

Project Web Site:


Supporting Stations: Palmer Station
Research Locations: Terra Lab


The National Oceanic and Atmospheric Administration (NOAA) Earth System Research Laboratory Global Monitoring Division (ESRL/GMD) team conducts long-term measurements of ultra-violet (UV) radiation and trace gas constituents that influence climate and the ozone layer. The work at Palmer Station is done in conjunction with the ongoing worldwide measurements of carbon dioxide, methane, carbon monoxide, aerosols, water vapor, surface and stratospheric ozone, chlorofluorocarbons, and the ozone layer. Similar work is performed at McMurdo and South Pole Stations under another event number for administrative convenience. The measurements are used for time-series analysis of multi-year data records that focus on stratospheric ozone depletion, trans-Antarctic transport and deposition, interplay of the trace gases aerosols with the solar and terrestrial radiation fluxes on the polar plateau, the magnitude of seasonal and temporal variations in greenhouse gases and the development of polar stratospheric clouds over Antarctica. Other objectives are to determine the rate at which concentrations of these atmospheric constituents change, and to examine their sources, sinks, and budgets. Working with climate modelers and atmospheric chemists, these data are used to determine how the rate of change of these parameters affects climate and serve as inputs and verification for climate models.

Field Season Overview

The Palmer Station Research Assistant (RA) provides year-round support for the UV monitoring instruments. One participant is scheduled to deploy to Palmer in March 2023. Additionally, the RA performs Scripps, CCGG, and HATS air sampling. A site visit to the NOAA Boulder location is required prior to RA deployment. Additional training is provided for the Research Associate during turnover between RAs on the Ice.