Kent's Imperative weigh's in:

We have rarely seen such a work of profound analytic fallacy as the now much circulated study “Baghdad nights: evaluating the US military `surge' using nighttime light signatures”, which has been making the rounds throughout the blogsphere as of late. This paper purports to declare the Surge a failure based on the lack of increase of overnight artificial lighting, as measured by the Defense Meteorological Satellite Program (DMSP) sensors.

This sensor data has previously been used to illustrate the profound gaps between the quality of life in North Korea, when compared to the prosperity and wealth of the South. Electrical usage can generally be considered a proxy for economic activity, particularly in areas where public utilities must be augmented by private generation capacity.

The Environment and Planning paper provides night lights data only to December 2007. And while it briefly displays intensity mapping of sectarian deaths in Baghdad area neighborhoods, it largely ignores the decrease in such violence as the final outcome of “a vicious process of interethnic cleansing” rather than the result of the change in US counterinsurgency strategy and force commitments which was the surge. This is an assumption which cannot be supported merely through imagery analysis.