Department of Space, Space Physics Laboratory, Vikram Sarabhai Space Centre, ISRO, Kerala, India
Research Article
CO2 over a Coastal Urban Location and its Forcing
Author(s): Sandhya K Nair* and Madhusoodanan MS
Recognizing the role of Carbon dioxide (CO2) in altering climate research and air pollution, direct measurements
carried out over a coastal urban station using Li-COR CO2/H2O analyser. The objective of the present study is to
examine CO2 variability during December-March. Day-to-day variability of CO2 ranges from 380-550 ppm with a
mean (423.1) and standard deviation (29.2). Monthly mean diurnal variability of CO2 is maximum during midnight
to early morning hours and minimum during afternoon. Overall diurnal variation is similar during the entire
months. The link between CO2 concentrations with Wind Speed (WS), Atmospheric Temperature (T) is examined.
Wind speed varies inversely with CO2. Atmospheric temperature shows an exponentially decaying relation with CO2.
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