Davis Antarctica Ozone Profiles from Balloon Sonde Measurements
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Description
Weekly balloon-borne ozonesonde flights at Davis Station, Antarctica have collected vertical ozone profiles since 2003. The program, operated by the Australian Antarctic Division with Chinese and Australian meteorological partners, provides data with approximately 50-meter vertical resolution. Measurements include ozone partial pressure, temperature, humidity, wind speed, and geopotential height.
Use Cases
Analyze ozone partial pressure trends against temperature and geopotential height to model polar ozone hole dynamics.
Correlate relative humidity and wind direction data with ozone concentration to study atmospheric transport processes.
Use estimated total ozone column and accumulated ozone per height to validate satellite-based ozone climatology models.
Track electrochemical cell temperature alongside ozone measurements to assess instrument performance and data quality.
Strengths
Continuous measurements since early 2003 provide a long-term record.
Data includes 9 main fields per profile, such as air pressure, ozone partial pressure, temperature, and wind speed.
Vertical resolution of approximately 50 meters (10-second sampling) captures detailed atmospheric structure.
Limitations
Desired weekly frequency was sometimes reduced to monthly due to material limitations, creating gaps.
The electrochemical cell's 20-second time constant means higher 2-second resolution data may not provide additional information.
Data is from a single station (Davis, Antarctica), limiting geographic coverage.
Provenance
Source
Australian Antarctic Division (AAD) in collaboration with Chinese Academy of Meteorological Science (CAMS) and Australian Bureau of Meteorology (BoM).
Ongoing measurements since 2003; update frequency is weekly or monthly.
Geography
Davis Station, Antarctica.
Primary data is held in ASCII text files by the World Ozone and Ultraviolet Radiation Data Centre (WOUDC); higher 2-second resolution data requires a special request.