To finalize my update on greenhouse gases here is the summary of the four postings in the individual gas concentration threads.
More radiative forcing of the "NOAA gases" (CO2, CH4, N2O, SF6) in October 2023 than in October 2022, but less than in May 2023.
The values [W/m²], change to Sep. 2023, change to Oct. 2022 and change to Oct. 2013 in brackets:
CO2 2.193 (+ 0.004) (+ 0.040) (+ 0.312)
CH4 0.541 (+ 0.002) (+ 0.005) (+ 0.041)
N2O 0.218 (+ 0.001) (+ 0.003) (+ 0.033)
SF6 0.0060 (+ 0.0000) (+ 0.0002) (+ 0.0018)
sum 2.957 (+ 0.006) (+ 0.047) (+ 0.386) (rounding differences)
The relative annual increase is 1.61 %, higher than in October 2022 (+ 1.11 %).
Compared with 1980 [average was 1.578 W/m²] the increase since then sums up to 87.4 %.
This recalculates to a CO2eq of 483.1 ppm (annual increase of 4.3 ppm).
Relative proportion on rF of the four NOAA gases, changes to one year ago in brackets:
CO2: 74.14% (+0.14%)
CH4: 18.29% (-0.14%)
N2O: 7.34% (-0.01%)
SF6: 0.202% (+0.003%)