Emissions in South Africa

NOx : Nitrogen oxides   satellite data at TEMIS 

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NOx emissions for 2009   ( Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec )
NOx emissions for 2010   ( Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec )
NOx emissions for 2011   ( Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec )

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Monthly NOx emissions   ( 2009 | 2010 | 2011 )
Yearly NOx emissions   ( 2009 | 2010 | 2011 )

Description

Experimental monthly and yearly mean NOx surface emission estimates downscaled from KNMI DESCO emissions (derived from OMI observations of tropospheric NO2 columns). The downscaling algorithm reconstructs the low resolution DESCO emissions by constrained optimisation of weights assigned to a set of proxy variables. The weights assigned to each proxy were constrained w.r.t. sector split information for anthropogenic emissions as reported for South Africa by Lamarque J.-F et al (2009). More information on the methodology can be found in the following document.

These emissions should at the moment be considered as experimental.

References

  • Maiheu B. and Veldeman N. Downscaling algorithm documentation, 2013. Available here.
  • Lamarque J.-F., et al., (2009) Gridded emissions in support of IPCC AR5. IGACtivities, (41), 12-18.