Sources
and a structure of database for numerical model simulation of the
Hiroshima A-bomb in 1945
Michio
Aoyama
Geochemical Research Department, Meteorological Research Institute
HiSoF members
Abstract
A database for numerical
model simulation is prepared based on studies of HiSoF members.
This database includes initial and boundary conditions which are
1) amount of flammable materials in 50 m grid within 8 km x 8km
area from hypocenter of the A-bomb, 2) times of begin and end of
induced fire just after A-bomb in 50 m grid, 3) time dependent heat,
water and carbon fluxes in 50 m grid, 4) a wind field in 100 m,
1 km and x km grids within 8 km x 8km area, 50 km x 50 km area and
500 km x 500 km area, respectively. The database also has tables
of results of initial survey of radioactivity by many researchers
after the A-bomb which can be used as validation data for results
of numerical simulations. The database gives reference height of
a mushroom cloud and initial distribution of fission products within
the mushroom cloud. The database contains rainfall distribution
which also can be used as validation data, too.
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