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Atmosphere 2014, 5(3), 686-698; doi:10.3390/atmos5030686

CO2 Monitoring and Background Mole Fraction at Zhongshan Station, Antarctica

1
Climate and Weather Disasters Collaborative Innovation Center, Nanjing University of Information Science & Technology, Nanjing 210044, China
2
Chinese Academy of Meteorological Sciences, Beijing 100081, China
3
College of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing 210044, China
4
NOAA ESRL Global Monitoring Division, 325 Broadway, R/GMD, Boulder, CO 80305, USA
*
Author to whom correspondence should be addressed.
Received: 8 July 2014 / Revised: 12 September 2014 / Accepted: 15 September 2014 / Published: 24 September 2014
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Abstract

Background CO2 mole fraction and seasonal variations, measured at Zhongshan station, Antarctica, for 2010 through 2013, exhibit the expected lowest mole fraction in March with a peak in November. Irrespective of wind direction, the mole fraction of CO2 distributes evenly after polluted air from station operations is removed from the data sets. The daily range of average CO2 mole fraction in all four seasons is small. The monthly mean CO2 mole fraction at Zhongshan station is similar to that of other stations in Antarctica, with seasonal CO2 amplitudes in the order of 384–392 µmol∙mol−1. The annual increase in recent years is about 2 µmol∙mol−1∙yr−1. There is no appreciable difference between CO2 mole fractions around the coast of Antarctica and in the interior, showing that CO2 observed in Antarctica has been fully mixed in the atmosphere as it moves from the north through the southern hemisphere. View Full-Text
Keywords: Antarctica; Zhongshan Station; CO2; background; CO2 characteristics Antarctica; Zhongshan Station; CO2; background; CO2 characteristics
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Sun, Y.; Bian, L.; Tang, J.; Gao, Z.; Lu, C.; Schnell, R.C. CO2 Monitoring and Background Mole Fraction at Zhongshan Station, Antarctica. Atmosphere 2014, 5, 686-698.

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