... on Bikini and Enewetak. The top-soil on the atolls has high levels of ra-dioactive cesium 137 , strontium 90, plu-tonium 239, plutonium 240 and americi-um 241. Of these fallout elements, only26 ... enclosed on the northern side, a configurationthat gives rise to drastic seasonal changes in the winds and currents. These monsoons, a variation on the Arabic word mausim, meaning “season,” carry ... MONSOON WINDS notonly alter the weather, they also control the biological productivity of the ocean. Thesefalse-color images (left), made using satellite mea-surements from the Coastal Zone...