Daily Archives: 24 May 2012

GHCN v3 A Question Of Quality

Some significant data excursion issues show up in the NCDC produced GHCN Version 3 data. I don’t know how many records might be similarly wrong, but in a less obvious way. Continue reading

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Posted in AGW and GIStemp Issues, NCDC - GHCN Issues | Tagged , , , , , | 15 Comments

GHCN v1 v2 v3 All Data

A high level overview of the changes in the aggregate data from GHCN v1 to v2 and v3. The average monthly values are found to change by whole degree orders of magnitude. Continue reading

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