“What is PIPS?” Steven Goddard defends his continued use of the US Navy’s deprecated Polar Ice Prediction System (PIPS) Arctic Sea Ice model. The US Navy uses it! Case closed. This is the same obstinate mindset that lies at the root of Anthony Watts’ obsession with surface weather station records. PIPS is not intended for climate usage. It is a repurposed navigational tool.

Steven likes PIPS because, as the Navy states, “PIPS 2.0 often over-predicts the amount of ice in the Barents Sea and therefore often places the ice edge too far south.” This is very useful for a desperate denialist.

Steven concludes by stating that any critics “ignore the facts, and post instead what suits their agenda.”  Unsurprisingly, this is actually Steven’s motivation for using PIPS. It’s the easiest to manipulate toward a desired conclusion. Just restrict your analysis to the areas where PIPS over-predicts ice and pass it off as impartial.