I am certainly not an expert on global temperature analysis, but from what I have read, 'satellites' does not trivially equate to 'better'. The satellites are n

I am certainly not an expert on global temperature analysis, but from what I have read, 'satellites' does not trivially equate to 'better'. The satellites are not measuring temperature directly, unlike thermometers, so there is significant extra processing involved. Indeed the mapping of satellite data to temperature values has had to be recalibrated in the past. And because of the extra indirection, there are larger uncertainties. Also if you look at the satellite data, although individual months may differ, the trend overall is the same as the ground based measurements, just with larger errors, which in fact shows thermometer data is doing a pretty good job.