Fig. 2: Change in the areal extent of likely vegetation cover.
From: Sustained greening of the Antarctic Peninsula observed from satellites
Based on NDVI (>0.2 threshold, dark green bars) and TCG (>0 threshold, light green bars) vegetation indices across the AP derived from Landsat 5–8 data (1986–2021). Grey shaded bars indicate the percentage of ice-, cloud- and snow-free land observable during March of each year, plotted against total ice-free land on the AP (as measured during austral summer, 2013–2015, using Landsat 8 imagery). A mask was added to eliminate land above 300 m above sea level (a.s.l.) to reduce reflectance issues from high-latitude and high-altitude areas, which may erroneously indicate the presence of moss in areas beyond known limits of growth. See Supplementary Fig. 4.1 for TCG time series in isolation.
