Fig. 6. Three-dimensional graphical representaticns of the gamma-ray exposure rates measured on Bikini Island as viewed from (a) the ocean side and (b and c) the lagoon side. The vertical coordinate is a measure of the exposure rates. Elevated exposure rates appear as "peaks" while the lesser values show up as relatively low flat areas. Note the lower values along the shores and the higher. values within the island's interior. Note also in (a) the low flat area situated on the ocean side near the center of the island. . -l]~