Michio Aoyama, Masaru Chiba
Meteorological Research Institute
Manami Suzuki
HiSoF coordinator

Abstract

Aerological data are essential for simulations of local fallout and black rain originating from the Hiroshima A-bomb on 6 August 1945, but no extant data were previously known. We recovered aerological data for 6 August 1945 that were recorded by aircraft of the U.S. Air Force, and data for July and August 1945 that were recorded at Tateno and Sapporo observatories and archived by the Japan Meteorological Agency. Nevertheless we have insufficient data for modeling the regional wind field of 6 August 1945.