Altitude (MSL) feet BIKINI WIND DATA FOR OPERATION CROSSROADS ~H-hour Direction Speed degrees mph Altitude (MSL) feet H-hour Direction degrees BAKER Speed mph Surface 2,000 200 160 03 le 14,000 15,000 080 080 09 09 6,000 150 09 20 , 000 110 o9 10,000 120 09 30,000 o4O 20 4,000 8,000 12,000 160 150 110 12 16,000 08 14 080 25,000 050 35,000 060 13 12 32 NOTES: 1. 2. 3. Surface wind data was obtained at H+l hour on Bikini; upper wind data was obtained on board the "Fall River." Tropopause height was 54,000 to 60,000 feet (exact height is uncertain). At H-hour the surface air pressure was 14.68 psi, the temperature 28.9°C and the dew point 25.0°C. miles Rise rate: 5000 ft/hr H — Hour Figure 6. Hodographs for Operation CROSSROADS 12 Baker sccm TABLE 2