Comparison of BEDMAP to SPRI Folio
Coverage: continent and the continental shelf continent and the continental shelf (except peninsula north of ~73šS)
Data sources: Airborne & oversnow RES, seismic, Airborne & oversnow RES, seismic,
map/survey data, airborne altimetry, borehole data, map/survey data, bathymetry gravimetric, satellite altimetry, glacier flow lines, shelf boundaries, coastline, bathymetry
Missions: 35 (1951-1980) (5 nations) 100+ (1951-1998) (10 nations)
Data quantity: ~ 70 000 RES, 2000 seismic 1,800,000 airborne RES, 16000 oversnow RES, ~ 4000 seismic
Data coverage: 7 million km2 (51% of continent) 10.5 million km2 (76 % of continent)
Mean density: 1 point per 100 km2 1 point per 5.5 km2
Product: Hardcopy map Digital data array, hardcopy map