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Chris Wright says:
Lucy Skywalker says:
February 4, 2011 at 2:02 am
“I don’t know which record to trust, does anyone else? This post shows RSS being adjusted downwards. How did that happen? Did the calibration against too-fast-rising land temperatures reveal itself as faulty? In fact, do the satellite sensors depend on the land records for calibration? and if so, is that after Hansen has waved his wand over the mix?”
One of the satellite guys that regularly posts data here repeatedly states that the satellite sensor is calibrated against an on-board source, clearly suggesting that calibration does not depend on the thermometer records such as GISS. Of course, if calibration did depend on GISS then they would no longer be independent and, worse, the satellite record would be badly contaminated.
I would suggest that the on-board source is used to correct for sensor drift. If so, it is quite distinct to the actual calibration process. To perform the actual calibration you would have to depend on theory alone – or you do indeed calibrate against a more ‘reliable’ source which presumably means thermometers.
I hope that the satellits record is not contaminated by the appalling thermometer records. But I would like to know how precisely the sensor outputs are converted to temperature. I seriously doubt that the on-board source can do this.
Chris
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Patrick Davis says:
“P. Solar says:
February 4, 2011 at 4:56 am”
Or Mark Twain.
But yes, it is odd that this new dataset is adjusted, either way, I don’t care. It is still adjusted (Mannipulated). Opens up even more questions about their methods, data and “science” IMO. What base measure was used to re-adjust the data? What data was used (Can’t be stuff from UEA CRU, the cat ate it in the move)? Why the adjustment now (After Climategate, the Copenhagen failure, massive cold almost everywhere, dare I say globally)?
I smell a, politically biased, fishy smelling temperature rat!