National Oceanic and Atmospheric Administration
Global Monitoring Division (GMD)
Supporting Stations: Palmer Station
Research Locations: T-5 Building
The National Oceanic and Atmospheric Administration's (NOAA) Global Monitoring Division (GMD) team will continue long-term measurements of trace constituents that influence climate and the ozone layer. The work done at Palmer Station is 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. The work is part of NOAA's effort to determine and assess the long-term buildup of global pollutants in the atmosphere. The measurements will be 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 of this research are to determine the rate at which concentrations of these atmospheric constituents change and to examine the sources, sinks, and budgets. Working with the climate modelers and diagnosticians, researchers will use the data to determine how the rate of change of these parameters affects climate, particularly when the data are included in climate-model studies in support of this project.
Field Season Overview:
Staff research associates (RAs) collect weekly air samples year around using a portable flushing and pressurizing apparatus. One or two samples will be collected each week, and environmental conditions will be logged. Sampling will occasionally be deferred until certain meteorological criteria are met. All samples are returned to NOAA/GMD in Boulder on a regular schedule for analysis of carbon dioxide and other trace constituents. The RA will also support the UV instrument with daily checks, routine calibrations, and troubleshooting as needed.
Deploying Team Members: