Surface areas, average depths, and maximum depths for five world oceans,
calculated from the ETOPO-1 dataset. Area is in square metres (converted
from square kilometres on the NOAA site), and depths are in metres.
Amante, C. and B. W. Eakins, ETOPO1 1 Arc-Minute Global Relief
Model: Procedures, Data Sources and Analysis. NOAA Technical Memorandum
NESDIS NGDC-24, 19 pp, March 2009.