New PIOMAS Gridded data is out. My derived regional breakdown data is now updated and a problem with extraneous lines at the end of the thickness/volume breakdowns CSV is now sorted out. I've also tried to semi-automate producing graphs, but as you'll see, this has resulted in a preposterously large title font - not fixed that yet! As I've said previously I consider PIOMAS to be the best long term proxy for sea ice volume and thickness distribution, e.g. here , and here.