Hi can can anyone define "torching", from what i can tell its when ice changes albedo and starts looking darker on filtered satellite images? What are the implications of this for the melt?
I will try though I'm no expert:
Torching - slang for when a significant amount of heat, typically anomalous temps and/or clear sunny sky, is applied to the ice. Terminology to keep the spirits going as we watch the melting season.
"Torching" as Wipneus uses it in his AMSR2 thread - when the ice loses 100% concentration over large areas of the AMSR2 animation. Remember it's a radar "image" so it's not albedo and actual darkening - but possibly concentration drops due to surface wetness, actual meltwater or even rain, or cloud interference. "Torching" is not necessarily the result of actual torching. The implications are that the ice is not in a perfect condition, and might melt sooner than 100% concentration ice.