アフリカの干ばつの気候学的考察
1977 年 1977 巻 16 号 p. 14-22
詳細
1977 年 1977 巻 16 号 p. 14-22
Comparison was made between the rainfall distribution of the drought years (1968-1973) and that of the preceeding six years (1962-1967). It is concluded that the rainfall belt formed by the NITC and the Equatorial westerlies did not advanced so much north in the drought years as in the preceeding years. The amount of the southward displacement of the NITC is between 200km and 500km. These figures seem not to be very substantial in comparison with the vast sphere of nomadic life. Although the decrease of rainfall is certain, other factors of the drought must also be analysed such as the overpopulation of cattle or overproduction of peanuts enforced by the EC system.
