Evaluation of climatic change through harmonic analysis |
| |
Authors: | Roberto Rodriguez M Carmen Llasat Emilio Rojas |
| |
Institution: | (1) Department of Astronomy and Meteorology, Avda, Diagonal 647, 08028 Barcelona, Spain;(2) Department of E.C.M, University of Barcelona, Avda, Diagonal 647, 08028 Barcelona, Spain |
| |
Abstract: | In the present work, a precipitation and temperature series from Barcelona (Spain) are analysed in order to detect the possible existence of climatic changes or cycles. The analysis is carried out both from the temporal and spectral standpoints. The techniques used range from the classical periodogram and Blackman-Tukey method through to the Maximum Entropy method. The results do not show the existence of climatic cycles, though they do show a clear tendency toward increased precipitation and decreased temperature, since the last years of series. |
| |
Keywords: | Fourier transform maximum entropy spectral analysis precipitation temperature climatic change |
本文献已被 SpringerLink 等数据库收录! |
|