Atmospheric CO2 from AIRS 2002-2016

  • Released Thursday, December 15th, 2016
  • Updated Friday, August 25th, 2023 at 12:08AM
  • ID: 4533

This visualization is an update of the global distribution and variation of the concentration of mid-tropospheric carbon dioxide observed by the Atmospheric Infrared Sounder (AIRS) on the NASA Aqua spacecraft. For comparison, it is overlain by a graph of the seasonal variation and interannual increase of carbon dioxide observed at the Mauna Loa, Hawaii observatory.

The two most notable features of this visualization are the seasonal variation of CO2 and the trend of increase in its concentration from year to year. The global map clearly shows that the CO2 in the northern hemisphere peaks in April-May and then drops to a minimum in September-October. Although the seasonal cycle is less pronounced in the southern hemisphere it is opposite to that in the northern hemisphere. This seasonal cycle is governed by the growth cycle of plants. The northern hemisphere has the majority of the land masses, and so the amplitude of the cycle is greater in that hemisphere. The overall color of the map shifts toward the red with advancing time due to the annual increase of CO2.



Credits

Please give credit for this item to:
NASA's Scientific Visualization Studio


Datasets used in this visualization

Aqua Monthly CO2 (A.K.A. Monthly CO2 V6) (Collected with the AIRS sensor)
Observed Data AIRS

Monthly CO2 from AIRS DAAC.

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