I explained in great detail why I used 2003 as the start for the ARGO-era Global Ocean Heat Content data for past posts in On Tamino’s Post “Favorite Denier Tricks Or How To Hide The Incline”. I held a graph back from that post. It would have been fitting for it, but I elected to sit on graph until the arguments subsided. I believe they’ve ended on that thread. So now I can make a final point (and once again show the disparity between the observations and the extrapolations of the GISS model OHC projections).
The ARGO-buoy contribution to observations was so small in 2002, especially in the waters of the Southern Hemisphere, that it was not considered as a start year. The other year that might have been appropriate was 2004.
So let’s visually compare the linear trends of the Global OHC data with the start years of 2003 and 2004. And to put things in perspective, I’ve also included the linear trends of the extrapolations of the Hansen-Pielke Sr post and of the RealClimate model-data post.
That’s what all of the hubbub was about, a minimal difference in the trends of the short-term observations when compared to difference between the observations and the model projections.
Data sources and further discussions can be found in On Tamino’s Post “Favorite Denier Tricks Or How To Hide The Incline”