Tag Archives: Temperature

What Difference Does Instrument Selection Make To Anomaly Processed Temperature Data?

I’ve wanted to do an A/B Comparison of “Anomaly Processed Temperatures” with changed instruments since the very first time I ran GIStemp, about a decade ago. Here, I finally get to “scratch that itch”. The claim is made that since it is all “done with anomalies” the actual instruments used does not matter. Here I show otherwise. Instrument selection DOES change the anomalies produced. Continue reading

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

Bias Or Corruption Of Temperatures

A couple of nice videos that together give a very good overview of why the historical temperature data are so screwed up and an insight into a little bit of the methods. (Cool the past, warm the present, drop stations that don’t show warming, “homogenize” urban warming stations into the missing station space, adjust, adjust, adjust…) Continue reading

Posted in AGW Science and Background, Global Cooling, Global Warming General | Tagged , , , , | 2 Comments

A Modest “Global Warming” Test Idea

Can rate of change of temperature from peak to low on the daily data for the same day of the year, over years, illustrate if global warming exists? Continue reading

Posted in AGW Science and Background | Tagged , , , , , | 35 Comments

Scraping NOAA and CDIAC

A reminder and script for how to scrape various web sites for temperature data, publications, etc. etc. Continue reading

Posted in AGW and GIStemp Issues, Tech Bits | Tagged , , , , , , , | 12 Comments