Category Archives: NCDC – GHCN Issues

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

GHCN v3.3 vs v4 Baseline End 2015

Posted on 9 June 2019 by

Checking the sensitivity of anomaly comparison of GHCN v3.3 to v4 with the same vs different duration of data. Continue reading →

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Posted in NCDC - GHCN Issues | Tagged , , | 26 Comments

GHCN v3.3 vs v4 Anomaly Graphs – Europe

Posted on 3 June 2019 by

Graphs comparing the Anomaly and the Change of Anomaly for the countries of Europe in the GHCN Global Historic Climate Network for Version 3.3 vs Version 4 showing changes of historical values for data and the shape of changes mead. Continue reading →

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GHCN v3.3 vs. v4 Anomaly Graphs – Africa

Posted on 22 May 2019 by

The GHCN v3.3 vs v4 Anomaly Graphs for Africa. Continue reading →

Posted in NCDC - GHCN Issues | Tagged , , , | 18 Comments

Dijibouti – Why? What Changed?

Posted on 18 May 2019 by

How can a set of static historical thermometers suddenly cool the past and warm the recent times? Continue reading →

Posted in AGW Science and Background, Global Warming General, NCDC - GHCN Issues | Tagged , , | 28 Comments