Wednesday, August 22, 2018

Climate Craziness - So whose data is right?

I've posted at length about the wretched state of the climate databases.  In particular the after-the-fact "adjustments" to the recorded temperatures is a huge source of potential unreliability.  I've posted repeatedly about how the satellite data sets are much higher quality than the surface data sets because they are (a) truly global in scope and (b) unlike the surface data sets, they do not get adjusted (much).

Well, dang:
The least-squares linear-regression trend on the pre-revision RSS satellite monthly global mean surface temperature anomaly dataset showed no global warming for 18 years 9 months from February 1997 to October 2015, though one-third of all anthropogenic forcings had occurred during the period of the Pause. Ted Cruz baited Senate “Democrats” with this graph in November 2015. 
Sure enough, the very next month Dr Mears (who uses the RSS website as a bully-pulpit to describe global-warming skeptics as “denialists”) brought his dataset kicking and screaming into the Adjustocene by duly tampering with the RSS dataset to airbrush out the Pause. He had no doubt been pestered by his fellow climate extremists to do something to stop the skeptics pointing out the striking absence of any global warming whatsoever during a period when one-third of Man’s influence on climate had arisen. And lo, the Pause was gone
RSS and UAH are the two data sets that solely use temperature data collected by satellite.  RSS is now monkeying around with adjustments to the data that the satellites collect, seemingly to a ridiculous level.  How ridiculous?
After the adjustments, the RSS dataset since 1990 now shows more warming than any other dataset, even the much-tampered-with GISS dataset – 

Note that RSS’ warming rate since 1990 is close to double that from UAH, which had revised its global warming rate downward two or three years ago. Yet the two datasets rely upon precisely the same satellite data. [Emphasis from me]
So two satellite data sets that have exactly the same recorded (raw) data produce wildly different outputs after data is aggressively upwards in RSS and not much at all in UAH.  This is new - RSS and UAH used to agree with each other very closely, as you would expect for having identical inputs.

I have about come around to the conclusion that man is indeed causing Global Warming.  But the men are the database administrators who handle the temperature data sets.


Old NFO said...

One of the reasons my chief scientist got OUT of that. He was involved in designing and building the RSS sats, didn't like what was being done... It's all BS now.

TheAxe said...

Is there a way for interested parties to access the raw data?

LSP said...

The seems to be a lot of money invested in a warmer climate.

Massive data set revenue streams and cash flow.

Not that I'm cynical or anything.