Yes, There Are More Problems With Climate DATA

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All over the blogosphere this past week, the usual climate crowd was proclaiming that May, 2014, was the warmest month (note how when a month is cold, it is "weather" and when a month is hot, it is "climate") "in history," "in the month of May," etc. Why the confusion?

Because there is yet another problem in the climate data.

While it has probably been a couple of years since I have written about it, there is a lot of fudging* that goes on in climate data. Here is a well-known fudge in the NASA data that has never been fully explained by NASA.


View the animation here. As is clear when you see the animation, the older temperatures magically get colder while the more recent temperatures get warmer.

And, this is still going on. This graph shows all of the recent 'adjustments' are to warm the atmosphere where many of the changes prior to 1980 are to cool the atmosphere. This means the upslope in recent temperatures is more dramatic.
Even here in Kansas, they continue to tinker with the temperature data. As Paul Homewood comments,
But this leaves the question of just why there is a need to continually adjust current temperatures upwards.

In the last 24 hours, both Anthony Watts and Judy Curry have weighed in on this mess that causes temperatures to appear warmer than they actually are. As Anthony has stated, I believe we will be hearing more about this in the next week.

For the record, this blog has always used the unadjusted HADCRUT3 data set unless otherwise stated. I believe that data base demonstrates trends in temperatures better than the others. I do not "cherry-pick" between data sets.

*Why does this occur? Sometimes the adjustments are legitimate such as synching measurements that are taken at different times of day or when a weather station is moved. Some of it appears to be what is caused "noble cause corruption" -- massaging the data to support what the person believes supports a worthy cause.

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