Comment Re:The meaning of random (Score 1) 654
Sorry, I meant 1940 to 1980, during the "global cooling" scare.
The rate of warming over the last half of that period was almost double that for the period as a whole
That doesn't compare the first half with the second, it compares the second with the entire period. Given the stasis/cooling from 1930 to 1950, it's hardly surprising that this is the case. It also choses 1906 as the starting point and 2005 as the end point. Why? Presumably it's been edited by William Connolley.
Satellite altimetry is somewhat unique in that many adjustments must be made to the raw range measurements to account for atmospheric delays (ionosphere, troposphere), ocean tides, variations in wave height (which can bias how the altimeter measures sea level), and a variety of other effects. In addition, the sea level measurements can be affected by the method used to process the altimeter waveforms, and by the techniques and data used to compute the orbit of the satellite. Early releases of the satellite Geophysical Data Records (GDRs) often contain errors in the raw measurements, the measurement corrections, and the orbit estimates." Nerem et al also mentions other major problems such as drift in the TOPEX microwave radiometer, a change from the original TOPEX altimeter to the back-up altimeter in 1999 "due to degradation in the original instrument" which had "different electronics" from the original resulting in divergent measurements which had to be "corrected'.
The term "peer review" used to be indicative of some kind of quality control. These days it simply means that your work has passed vetting by the warmists.
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