To restore trust, should we start again with new quality control on input data in total transparency?
First, I am assuming again that you are referring to the surface record from both land and marine regions of the world, although in this answer as you specifically say “station” records, I will emphasise the land regions. There is more than one “official” surface temperature record, based on actual land station records. There is the one we have developed in CRU, but there are also the series developed at NCDC and GISS. Although we all use very similar station datasets, we each employ different ways of assessing the quality of the individual series and different ways of developing gridded products. The GISS data and their program are freely available for people to experiment with. The agreement between the three series is very good. Given the web-based availability of the Global Historical Climatology Network (GHCN), which is used by both NCDC and GISS, anyone else can develop their own global temperature record from land stations. Through the Met Office we have released (as of 29 Janua
