Category Archives: NCDC – GHCN Issues

Problems and issues in the GHCN and other data sets from NCDC the National Climate Data Center, of NOAA.

GIStemp – No new source code?

It would seem that you can get GHCN Version 3 data, but not Version 2; yet NASA GISS is still providing only the Version 2 software for GIStemp. So you can get code that runs the data you can’t get, or data that breaks the code you can get. Someone needs to get these folks on the same page… Continue reading

Posted in AGW and GIStemp Issues, GISStemp Technical and Source Code, NCDC - GHCN Issues | Tagged , , , | 29 Comments

WIP on First Differences

Some notes on First Differences and what is best for what use… Continue reading

Posted in AGW Science and Background, NCDC - GHCN Issues | Tagged , , , , , | 10 Comments

Classic First Differences vs dT or dP

A test / comparison of the First Differences method with the dT or dP method (that ‘bridges gaps’ in missing data rather than taking a ‘reset’). Continue reading

Posted in dT/dt, NCDC - GHCN Issues | Tagged , | 17 Comments

GHCN v1 vs v3 Special Alignments

A special set of custom graphs with trend lines just for Barry at WUWT… Can’t beat that for service, eh what? Continue reading

Posted in NCDC - GHCN Issues | Tagged , , , , , | 17 Comments

Summary Report on v1 vs v3 GHCN

My overview report on the v1 vs v3 comparison series. Continue reading

Posted in AGW Science and Background, CRUt, dT/dt, NCDC - GHCN Issues | Tagged , , , , , , , , , , , | 35 Comments