Show more...
Abstract:
Data scanned directly from paper maps. There are two types of data available: (data1: geometrically corrected data) and (data2: raw image data). Map compilation from air photographs of Jan. 27, 1969, Jan. 25, 1970 and Dec. 17, 1975, controlled by triangulation points established by Japan Antarctic Research Expeditions, 1973 and 1975.