More Temperature Data Concerns

Posted by Joe D’Aleo
China - NOAA GHCN
The NOAA GHCN data for China shows a temperature that was in part responsive to large changes in the network of observing sites. E.M. Smith noted a major dropout starting shortly before 1990 after the global warming effort took flight (Hansen’s testimony was in the summer of 1988).
The station distribution became increasingly urban, more tropical, more lower elevation, all of which would cause/enhance the shown warming. Current station numbers remain lower than anytime back to 1930. The stations were not closed. They can still be found on the web reporting hourly data.

The Russian IEA found a similar station situation with a station dropout from 476 to 121. The new subset had 0.64C more warming and were biased towards stations with partial data (opportunity for mischief) and urbanized.