UNCLASSIFIED MASTER ~s i FOREWORD wro-)522 MEL) Brrecte of Atomlo Weapons The worldwide falicat monitoring program for Dperation IVY e208 cverdinated by the New York Operations Offion at the request of the Diviaton of Biology and Medicine. When the plan wae originally devised, in the Summer of 2952, only the erea teyond 500 miles from Eniwetok was assigned to NYOO, UNITED STATES ATOMIC EXERGY COMMISSIGN Wew York Operations Office RADIOACTIVE DEBRIS FROM OPERATION IVY the Staff, Prepared Health end Srety Division Merril Bisenbud, Direotor Photortat Price § é. 3 ¢ } Micrefilm Price $_ 3. OO Avelleble from the Office of Technicel Services Department of Commerce April 28, 1953 The monitoring program employed a worldwide network of 111 stations located on all continents but concentrated in the northern hemisphere, and # system for aerial monitoring of the western Pacific. The latter feature of the program was devised to meet the requirement for quick and reliable radiation meaeures mente cf the lelande. it was nesaceary to design special monitoring instruments of a type which were not anywhere available in September, 1952, when the mission wae aseigned to NYOO. The program has required the cooperation of a diveree liat of organisations whioh, in addition to the Division of Biology and Medicine and Joint Task Poros 132, includes the Weather Bureau, the Air Force, Mavy and Coast Guard, the Canadien Weather Service and the Atomic Bomb Casualty Commission. Most of these organisations have provided and manned the sampling stations et whioh our date were obtained. The Navy provided afroraft for aerial monitoring and arranged for quartere ard other courteates for Health and Safety Division personnel in +..0 Paoifios The Special Projects Section, U. %. Weather Buresu, furnished cloud trajectory information and roriceets as a part of our joint assistance to the photographic indusvrys They are enalyting the monitoring data and their findings will be reported eeperatelye Washington 25, 0. C. caireag any woaranenan mpperetas —Mbah. 11 prevear dhictetat t fale reper sey oo mn ac eunet rept om rtemiate Somagee rence 1h Aamo wr atatinice SU remeN nw at. oo te om wilie UNCLASSIFIED It wae contemplated that Joint Task Force 132 would monitor the islends within this distance. In early September, the HYOO assignment wae extended to include all of the islands of the Trust Territory except Eniwetok iteeif.