Even Trenberth acknowledges: Only fifteen year old Data to 2000mtrs and at first there was a lot less Argo buoys so even less data in the early days. Before that, measured by survey ships. Whilst it is something, nobody would hang there hat on it to be accurate. The data is so incomplete.. 3.2. Sensitivities and Diagnostics [ 11 ] The deployment of the Argo fl oats from 2000 – 2004 is a revolution in the ocean observing capabilities and it is only after 2003 that regular and spatially homogenous tempera- ture soundings of the upper 2000 m are available, giving new con fi dence in the OHC assessment in the recent years, but rendering comparison of the OHC in the pre-Argo and post-Argo dif fi cult. 3.2. Sensitivities and Diagnostics [ 11 ] The deployment of the Argo fl oats from 2000 – 2004 is a revolution in the ocean observing capabilities and it is only after 2003 that regular and spatially homogenous tempera- ture soundings of the upper 2000 m are available, giving new con fi dence in the OHC assessment in the recent years, but rendering comparison of the OHC in the pre-Argo and post-Argo dif fi cult.
