700mb等圧面の風による台風速度の予報(日本航海学会第19回講演会) On the prediction of typhoon motion with the geostrophic wind of 700mb pressure level

In 1956, prof. H. Riehl of the Chicago University and H. W. Haggard of the U.S. Navy published some results on the prediction of 24-hours hurricane motion in the Journal of Meteorology of American Meteorological Society. The writer thought that the methods were useful to the ship officer to predict typhoon motion. So he applied the principles to the prediction of 24-hours typhoon motion in the south western part of the North Pacific. The results which the present writer obtained seemed fruitless, but mainly this was owing to the scarcity of data, or the poor accuracy of present weather maps. Therefore, the methods should be evaluated in future investigations.