Category Archives: NCDC – GHCN Issues

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

Thermometers Over Time

Some graphs of GHCN v3.3 thermometers plotted on a SINE perspective globe, in groups of about 1/2 century type time jumps. Continue reading

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Posted in NCDC - GHCN Issues | Tagged , , | 19 Comments

Global Map High Cold Stations

Some global maps of GHCN v3.3 at altitude and comparing the GISS baseline to the last year of data, 2015. Continue reading

Posted in NCDC - GHCN Issues | Tagged , , , | 15 Comments

Some Interesting Thermometer Lifetime Numbers

I take a look at how many thermometers don’t have much lifetime, and is there more dropout of short life of data in January than in July. Continue reading

Posted in AGW Science and Background, NCDC - GHCN Issues, Tech Bits | Tagged , , , , | 17 Comments

Hadley Baseline Thermometers Vs Now – GHCN v3.3

I’ve made a global map of Hadley Baseline (1960-1990 per their web site) vs “now” – the last year in GHCN v3.3 then graphed it with a SIN Perspective global map. The GIStemp baseline map is also presented for comparison even though they are almost the same. Continue reading

Posted in Global Warming General, NCDC - GHCN Issues, Tech Bits | Tagged , , , , | 4 Comments