Do the global satellite temperature measurements match the global climate models used to scare people about climate change?
No, they don’t.
No real measurements (weather satellite, weather balloons and surface thermometers) match those 'computer game' predictions!
The computer game Global Circulation (climate) Models predict almost triple the actual warming measured by weather satellites ... satellites whose data are confirmed by weather balloons.
Those satellites are ignored by NASA and NOAA, who always choose the measurement methodology showing the most warming -- surface thermometers -- in spite of the fact that a majority of our planet's surface has no measurements!
Our planet is divided into 5 degree latitude by 5 degree longitude grids -- but a majority of grids have no data, so they are "infilled" with wild guesses by government bureaucrats who believe in runaway global warming from man made CO2 (getting their jobs requires having that belief ! ).
Surface temperature measurements used by NASA and NOAA have been repeatedly "adjusted" to show more warming !
These suspicious "adjustments" have created a growing gap between the warmer surface data and all other temperature data (from weather satellites and weather balloons).
UAH (University of Alabama Huntsville) and RSS (Remote Sensing Systems) satellite temperature data are the only truly global temperature measurements ... there are only small unmeasured gaps over the poles.
Both UAH and RSS satellite data show significantly less warming in the lower troposphere than surface temperature measurements, and the gap has been growing in recent years.
Both UAH and RSS satellite data show only about one-third of the warming that had been predicted by global climate models ... making it obvious the climate models are failures!
The satellite records begin in 1979.
Raw data are from different satellites, and require large adjustments.
UAH lower troposphere (TLT) data matches radiosonde (weather balloon) data, -- suggesting the UAH adjustments were valid.
UAH had historically showed slightly more warming than RSS.
But for the two latest series (UAH version 6.0, and RSS version 4.0), RSS shows over +0.2 degrees Centigrade more warming since 1979 than UAH.
Reason:
The RSS TLT data were adjusted in 2015 to show over +0.2 degrees C. more warming since 1979 than UAH.
To me that means the RSS adjustments are suspicious, but the difference is small.
Satellites use microwave sounding unit (MSU) sensors to measure radiances in various wavelength bands, which require mathematical calculations to obtain temperatures.
Three MSU units measure temperatures at three elevations:
MSU2: The middle troposphere (TMT)
MSU3: The upper troposphere/lower stratosphere (TTS)
MSU4: The lower stratosphere (TLS)
None of the MSU units measure the lower troposphere (TLT) directly, so TLT data are obtained by using a weighted average of the outputs of the three MSUs
(UAH uses 1.538 x MSU2 - 0.548 x MSU3 + 0.01 x MSU4).
TLT lower troposphere data are a weighted average of three measurements between the surface and a maximum elevation of about 13km.
Adjustments to satellite raw data are made for such things as orbital drift, diurnal drift, calibration, instrument heating and time-of-observation biases ... and are constantly being revised.
UAH has revisited its adjustments at least eleven times since 1992.
Are the adjustments to current versions of the UAH series (v 6.0) and RSS series (v 4.0) valid?
Experts disagree.
One way to check satellite data is to compare UAH and RSS satellite data with independently-measured radiosonde temperature series.
Radiosondes, or weather balloons, use resistance thermistors to measure temperatures as they rise through the atmosphere.
Radiosonde balloons are usually released from weather stations on land.
The UK Met Office has the HadAT radiosonde series (data from 1958 through 2012, for pressure levels of 850, 700, 500, 300 and 200 hPa.)
These five pressure levels are approximately equivalent to elevations of 1,350, 2,910, 5,480, 9,080 and 11,700 meters (that covers the troposphere, plus part of the lower stratosphere).
For the UAH TLT “land point” series versus the HadAT “TLT equivalent” radiosonde series, the data match between the two series is near-exact.
Primary Source:
Adjusting Measurements to Match the Models – Part 3: Lower Troposphere Satellite Temperatures
By Roger Andrews,