— - a eee Meteorologists predicted duwowind tra- e jectories, precipitation and other factors which could affect + levels: of fallout. The duta from the weather stutions were currentiy uvaladle aiimnvust up te the exact tine of the shot. | Adetonation could be cance led at any time up tu a few seconds “bafore shot time. A more complete description of the metecr- 2, glogical program is given below. Tae Ft Sawa, ame. So ins.re safety to aircraft, both from the initial flash of | light wad any radioactivity in the alr mass moving off-site’ * . from atmospheric tests, 4 representative of the Federal Avia- ok, ~My ney he Viaibe Sr: we “populated areas. wae a - tion. Agency was made an intregal part of the icst Organiza"tion. He »repared flight advisory plans based un the type of event and on the predicted nfeteroluogical conditions. . or Ta The-: plandelineated flight patterns and areas and recommended °: alternniv routes, if required, by commercial anil private air craft. Frequently the FAA closed specific giv lnius and re. routed aircraft for specified periods. wmeae aval ao sete ovbeetin SBlast effects were minimized by predicting, blust wave in- _ tensities based on the wind and temperature prolile expected. ‘at=shot time, Since long divtance blast pressure propaga. -“tion is strongly dependent on wind profile stricture, calcu:* +l mae] foe ' ‘Yations were made for many directions and distances from eet wr tral te Bette teenvoceten te ong tonaeen TI trp hoes 9 ecole of elles Ae ert nee pe MYLOeee,RRR angie ee finest oH ARE teaoy ie FIGURE P.-Public Health Service environmental sempling etaty cr wr ond the Nevada Teat Site. sentatives from the fields of public health, medicine, meteurology, fallout phenomenology, blast and thermal effects. etc. Asa result of these deliberations more than 200 delav= in firing have been mnde at a cost of millions of dollars, tome ise safety The Advisory Panel continues te function for under: iid leals. The principal cause for the delays war the re jure for proper weather canditver ta dpeure opm o; Hs * ee ee tions unfavorable for fallout usually were also unfavorable for biast. full off-site radiological monitoring covaruyr was and in * provided by the U.S. Public Health Service ninter a Memo * randum of Agreement with the U.S. Atomi ergy Com- ae omits because of predicted biast effects since meterviovical condi. < otce co mission. There were and nre extensive monileving progcains, : including mobile monitoring teams, Slambadges, vir saniplers, § automatic gamma recorders, collections of iilk, vegetation. soil, etc. A more complete description of the programa ts wae BA ae Ur aT TLD RFORP RTA . Se ee the test site where possible window damage imipht have oc. ; » eurred. In order to improve blast calculation techniques, a ~ network of especially sensitive microbarograplis was operated ‘at as many as 17 off-site iocations to record actual sho}-pro- ; ‘duced pressures in Nevada, California and Utah. It waa’ rarely necessary to recommend a deny in firing time solely: given below. All of the key deta obtained from these monitor: | ing programe were and are reported in the open Uterature . such as the Atomic Energy Commission's Soi inaual (now | annual) reports tv Congress and the U.S. Puidic Uealth Serv. ice’s monthly publication, Radiological Healt!) frota. Ativs tensive public information program by the Ui Vblie Health Service continues around the Nevada Test “ite ig. MD a