National Park Service Resource Brief for the Arctic Inventory and Monitory Network which briefly summarizes the status of fire extent and frequency in ARCN parks and highlights the historic fire record (WFMI) & perimeter improvements.  The brief is written for a non-technical audience and there is a companion web article which has a little more information interactive graphics:  Fire Extent and Frequency Resource Brief for the Arctic Network (U.S. National Park Service) (nps.gov)