HFC-134a and SF6 concentrations

External Data Spec Published 01 Jan 2002
NOAA data
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National Oceanic and Atmospheric Administration (NOAA)
information.png Dataset URL:
http://www.eea.europa.eu/data-and-maps/data/external/national-geophysical-data-center-ngdc
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Link to NOAA data

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Used in indicators

Atmospheric greenhouse gas concentrations This indicator shows the observed trends in greenhouse gas concentrations. The various greenhouse gases have been grouped in three different ways: (1) the six Kyoto Protocol GHGs (CO 2 , CH 4 , N 2 O, HFCs, PFCs & SF 6 ) (2) long-living GHGs (Kyoto Protocol gases plus the Montreal Protocol gases CFCs, HCFCs & CH 3 CCl 3 ) (3) long-living GHGs and ozone, water vapour and aerosols Greenhouse gasses are grouped in two ways. I n addition to the concentration of individual GHGs, they are grouped using the CO 2 -equivalent concentration as a way to add the different gasses. The CO 2 -equivalent concentration of a gas is the CO 2 concentration that would cause the same amount of radiative forcing as the mixture of all GHGs. Global annual averages are considered, because in general the gases mix quite well in the atmosphere. 
Atmospheric greenhouse gas concentrations The indicator shows the observed trends of greenhouse gas concentrations. The various greenhouse gases have been grouped in three different ways: (1) the six Kyoto Protocol GHGs (CO 2 , CH 4 , N 2 O, HFCs, PFCs & SF 6 ) (2) long-living GHGs (Kyoto Protocol gases plus the Montreal Protocol gases CFCs, HCFCs & CH 3 CCl 3 ) (3) long-living GHGs and ozone, water vapour and aerosols Next to the concentration of individual GHGs, greenhouse gasses are grouped in two ways, using the CO 2 -equivalent concentration as a way to add the different gasses. The CO 2 -equivalent concentration of a gas is the CO 2 concentration that would cause the same amount of radiative forcing as the mixture of all GHGs. Global annual averages are considered, because in general the gases mix quite well in the atmosphere. 
Atmospheric greenhouse gas concentrations The indicator shows the observed trends of greenhouse gas concentrations. The various greenhouse gases have been grouped in three different ways (see 'Justification for Indicator Selection’ section above). Next to the concentration of individual GHGs, greenhouse gasses are grouped in two ways, using the CO 2 -equivalent concentration as a way to add the different gasses. The CO 2 -equivalent concentration of a gas is the CO 2 concentration that would cause the same amount of radiative forcing as the mixture of all GHGs. Global annual averages are considered, because in general the gases mix quite well in the atmosphere. 
Atmospheric greenhouse gas concentrations The indicator shows the observed trends of greenhouse gas concentrations. The various greenhouse gases have been grouped in three different ways (see rationale). Except for the concentration of individual GHGs, the effect on the enhanced greenhouse effect is presented as CO 2 -equivalent concentrations, which is the CO 2 concentration that would cause the same amount of radiative forcing as the mixture of all GHGs. Global annual averages are considered, because in general the gases mix quite well in the atmosphere.

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