1. IPY CiCAT Field Measurement Protocol for Mapping Canada’s Arctic Vegetation, Version 4.0;Chen,2007
2. NDVI, biomass, and landscape evolution of glaciated terrain in northern Alaska;Walker;Polar Rec,1995
3. Role of vegetation and climate in permafrost active layer depth in Arctic tundra of Northern Alaska and Canada;Kelley;J. Glaciol. Geocryol,2004
4. NDVI patterns and phytomass distribution in the circumpolar Arctic;Raynolds;Remote Sens. Env,2006
5. The relationship between soil moisture and NDVI near Barrow, Alaska;Engstrom;Phys. Geog,2008