Up until now, S&C were able to closely
match radiosonde measurements.
Similarly, do the trends in the new UAH data still
match the radiosonde data, or is that not yet analysed?
Christy claims the results he and Spencer have
match radiosonde readings better (see his comments in the link of # 4 above).
These problems are sufficiently serious that the US National Weather Service (NESDIS) adjusts satellite data every week to
match radiosondes, in effect relying upon radiosondes as a reference instrument.
Note how the three that do
match the radiosondes for the hot spot, don't match in the stratosphere.
In those three graphs you think
match the radiosondes — all of them fail in the stratosphere.
Not exact matches
Since the UAH team have acknowledged the error in their analysis, the apparent
match to the
radiosondes now seems to have been fortuitous.
At monthly timescales (which should not be affected by trends in the model or possible drifts or calibration problems in the satellites or
radiosondes) there is a very good
match.
One additional piece of evidence that has been discussed frequently was the claim that the trends in UAH MSU 2LT closely
matched those of the
radiosonde (balloon) network (Christy et al, 2003).
To reduce the variability and bias introduced into the QME AERI / LBLRTM radiance residuals, the moisture profiles from each
radiosonde are scaled such that its total precipitable water vapor
matches that retrieved from the microwave radiometer (MWR), and these scaled profiles are used to drive the model.
They have gone through a number of types of
radiosondes and the satellite data would indicate the measurement change with the new device since the new
radiosondes wouldn't
match the satellite data and the old
radiosondes would This is the same problem — mandatory objective environmental test standards would give historic continuity.
Data assembled from
radiosonde balloon records12 is a pretty fair
match with HadCRUT34, GHCN - ERSST8 and HadCRUT2v9, suggesting independent corroboration via alternative methodology.
Although modern remote sensing by satellites, aircraft and ground sensors is an increasing source of atmospheric data, none of these systems can
match the vertical resolution (30 m (98 ft) or less) and altitude coverage (30 km (19 mi)-RRB- of
radiosonde observations, so they remain essential to modern meteorology.
The Hadley
radiosondes don't
match the models, but it's hidden by clutter in their graphs.
As I keep repeating, the models don't
match the observations, it's «an important problem» and they don't know why, could be the models, could be the
radiosondes.
Mears and others said that the satellite measurements should not be taken seriously because they only infer the temperature from measurements of radio emissions by Oxygen molecules - AND - that these final numbers never
match actual temperature measurements made over land and water (ground stations as well as
radiosonde).
Using a longer period would made the
match of surface and
radiosonde observation to models much worst in the period before 1979.
Christy et al. (2007) find that the tropical temperature trends from
radiosondes matches closest with his v5.2 UAH dataset.
My «Word
matching» throws up the issue that the paper is only useful for «clear sky» applications, when M's calculation is based on «real sky»
radiosonde observations and «real sky» observations from a high tower.