Short explanation of inventory attributes: id_icerise: unique id code for each feature (sorted after longitude) type, type_text: 1 = Ice rise (topographic feature within an ice shelf, has its own dynamics) 2 = Ice ridge (major ridges between ice shelves/streams with a clear divide) 3 = Ice rumple (smaller irregular grounded areas with limited prominence and typically ice-shelf flow across it) 4 = Nunatak (visible rock) name: names for those that have, mainly based on SCAR database divide: 0 = no clear divide 1 = clear divide island: 0 = grounded below sea level 1 = partly grounded above sea level isolated: 0 = inside or connected with an ice shelf 1 = not connected to an ice shelf (only applies to ice ridges, mainly in Siple Coast) MOA2003, MOA2009, InSAR (main data sources): 0 = not represented in that data set 1 = represented in that data set (hence three zeros implies manual identification) Area_km2: polygon area in Lambert equal area projection nrofpoints: number of grid points for statistics calculation (0 means that no statistics have been calculated yet) vel_mean: mean velocity over the feature based on the Antarctic Velocity Map (Rignot et al., 2011) h_mean, h_min, h_max: mean, minimum and maximum surface elevation of each ice rise extracted from Bedmap2 h_rise: relative height of ice rise (h_max-h_min) bed_mean, bed_min, bed_max: mean, minimum and maximum bedrock elevation of each ice rise extracted from Bedmap2 thick: mean ice thickness (h_mean-h_bed) slope_mean: mean slope extracted from Bedmap2 Width, length: shortest and longest distances (in unit km) from the summit to the edge of each ice rise longi, lati: longitude and latitude of the center point of each ice rise