Secular changes in the rainfall regime of SE. Australia
β Scribed by E. B. Kraus
- Publisher
- John Wiley and Sons
- Year
- 1954
- Tongue
- English
- Weight
- 690 KB
- Volume
- 80
- Category
- Article
- ISSN
- 0035-9009
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
Analysis of longβseries rainfall records from Victoria and New South Wales shows a decrease of summer rainfall to a minimum about the turn of the century, and fifty years' gradual increase since then. Winter rainfall trends were opposite. Fluctuations of a much larger amplitude affected the rainfall regime of autumn and spring, suggesting possibly a discontinuous change of the climatic development about 1893.
The winter rainfall of southern New South Wales is positively correlated with the mean strength of the westerlies at 300 mb. The correlation is negative in summer. It is concluded that the changes of the rainfall regime were associated with an increase of intensity of the upper westerlies to a maximum at about 1900 and a following decrease. During the period of maximum mean westerly flow the formation of eastβcoast cyclones in autumn and spring may have been inhibited and the monsoon rains of tropical Queensland were below normal.
π SIMILAR VOLUMES
## Abstract Secular changes are demonstrated by residual mass curves. It is shown that tropical rainfall decreased abruptly at the end of the 19th century. This was due largely to a contraction of the rainy belt and a shortening of the wet seasons. In the SE. Asian monsoon region the annual rainfal
## Abstract The mean rainfall along the east coasts of North America and Australia is shown to have decreased abruptly at the end of the 19th century, in conformity with results for the tropics obtained in an earlier paper. A simultaneous decrease of the rainfall in the semiβarid western parts of N
## Abstract A detailed analysis of the rainfall of Adelaide, South Australia, has shown that throughout the 95 years 1839β1933 there has been a definite oscillation, with a period and amplitude of approximately 23 years and 30 days respectively in the incidence and duration of the winter rains. The