A crop-based rainfall chronology for pre-instrumental record southern California |
| |
| Authors: | Lester B Rowntree |
| |
| Institution: | (1) Department of Geography, San Jose State University, 95192 San Jose, CA, U.S.A. |
| |
| Abstract: | Although measured climatic records begin in California about 1850, agricultural records from the earlier Spanish period (1769–1834) can be used to develop information about annual precipitation. This historical material should be used, however, only with a full understanding of the numerous cultural variables that influenced agricultural production. A study by Lynch in 1931, which is widely cited in the literature of Pacific Coast climate reconstruction, contains serious shortcomings because of incorrect assumptions about the Spanish agricultural system, and, more specifically, the amount of climatic information expressed in yearly harvest data. In this article, mission data are analyzed more rigorously to produce a revised annual rainfall index for southern California that encompasses most of the pre-instrumental record period. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
