First impressions are that this has a
number of artifacts in it likely due to inhomogeneities in the
satellites (
varying levels
of spatial coverage through time as
satellites drop in or out).
The ``... uneven spatial distribution, many missing data points, and a large
number of non-climatic biases
varying in time and space» all contribute inaccuracies to to the global temperature record — as do errors in orbital decay corrections, limb - corrections, diurnal corrections, and hot - target corrections, all
of which rely on measurements (+ - inherent errors), in the
satellite temperature records.