The warmest August on record, says NASA, page-31

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tristanc

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20/09/14

12:35

Post #: 14004071
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Originally posted by derty sanchez ↑

Yes, that is quite funny. They are quite happy to present data that supports their reality even though it is adjusted, extrapolated and modelled. They are about as sceptical as the average Moonie.

And more inconvenient, when you look at the microwave sounding data over time it shows a strong tropospheric warming trend and a strong stratospheric cooling trend. Exactly what is to be expected from AGW.

From the link (posted for the irony):

"TLT is a more complex data set constructed by calculating a weighted difference between measurements made at different Earth incidence angles to extrapolate MSU channel 2 and AMSU channel 5 measurements lower in the atmosphere."

"These four channels measured the atmospheric temperature in four thick layers spanning the surface through the lower stratosphere. The last MSU instrument, NOAA-14, ceased reliable operation in 2005." While these are individually unreliable, the MSU readings are adjusted based on calibration of the data from the newer AMSU satellites. Fancy adjusting your data! The horror!

"TLT is constructed by calculating a weighted difference between MSU2 (or AMSU 5) measurements from near limb views and measurements from the same channels taken closer to nadir, .... This has the effect of extrapolating (they extrapolate too?) the MSU2 (or AMSU5) measurements lower in the troposphere, and removing most of the stratospheric influence (WHAT!!! they remove raw data??!!) . Because of the differences involves measurements made at different locations, and because of the large absolute values of the weights used, additional noise is added by this process, increasing the uncertainty (there is uncertainty too???!!!, someone call Anthony Watts!) in the final results."

"Our MSU/AMSU products use data from 14 different satellites. The data need to be intercalibrated before being merged together. This is a complex process, as shown in the flow chart below.

First, adjustments (more adjustments!!) are made for changes in local measurement time (diurnal adjustment) and Earth incidence angle.

Then, intercalibration is performed by comparing measurements from co-orbiting satellites, yielding a set of “merging parameters”.

Uncertainty that arises earlier in the process (e.g. from the adjustments for local measurement time) can cause uncertainty in the merging parameters, which adds to the uncertainty in the final results.

Because of the complex nature of the errors (and errors! there are errors!! OMG!!!! HOW CAN THIS BE SCIENCE??), they are difficult to calculate and describe using simple statistical methods. Instead, we use a Monte Carlo technique to produce a large number of possible realizations of the errors that are consistent with the sources of error that we have studied."

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