"Climate change doubters may have lost one of their key talking points: a particular satellite temperature dataset that had seemed to show no warming for the past 18 years."Politics, not science, is behind this change. Criticism.
"The paper is for MT, not LT…but I think we can assume that changes in one will be reflected in the other when Mears completes their analysis.From what little we have looked at so far, it appears that they did not correct for spurious warming in NOAA-14 MSU relative to NOAA-15 AMSU…see their Fig. 7c. They just leave it in.Yes.
Since this spurious warming is near the middle of the whole time period, this shifts the second half of the satellite record warmer when NOAA-14 MSU (the last in the MSU series) is handed off to NOAA-15 AMSU (the first in the AMSU series).
Why do we think NOAA-14 MSU is at fault?
1) AMSU is supposed to have a “Cadillac” calibration design (that’s the term a NASA engineer, Jim Shiue, used when describing to me the AMSU design, which he was involved in).
2) NOAA-14 MSU requires a large correction for the calibrated TB increasing with instrument temperature as the satellite drifts into a different orbit. The NOAA-15 AMSU requires no such correction…and it wasn’t drifting during the period in question anyway.
So, it looks like they decided to force good data to match bad data. Sound familiar?"
El Nino makes February warmest ever.
Real data shows pause ending because of el Nino, but it will be back afterward.
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