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Lucy Skywalker says:
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?
I still incline to unearth rural station records, individual ones at that, preferably ones that can be compared with reasonably nearby urban records. For to date, I think the picture shown by many intrepid collectors of rural records is pretty stunning, and from all over the world too.
Verity published my piece here but I’ve updated the original here
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frederik wisse says:
Just an observation from an outsider . Nearly all published statistics nowadays are contaminated with ideological smoothing of reality . Would the singsong of al gore cs be nowadays dropping temperatures then they would be showing unprecedented cooling and robust temperature drops proving their point , no need to flee into drug -related orwellian double speak . Looking into the details of the sst anomalies as presented by unysis certain cosmetics in painting reality can easily be detected . There are very clear maps of the extent of northern hemisphere sea-ice , showing sea-ice west of nova zembla , east of greenland and north of the fram strait . On spots where the ice floor is visible and registered by satellites , the sst surface anomaly registration is showing clearly above mormal temperatures between 1 and 2 degrees celsius . Is the ice too hot over there ? Is there daily smoothing going on to serve a not so hidden agenda ? Is the registration so inaccurate that any anomaly under half a degree celsius is well under that standard deviation in the statistics ? How are the temperatures in and around the fram strait measured and does the possibility exist to verify their correctness ?
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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