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Details van artikel 69 van 94 gevonden artikelen
| Titel: |
Preliminary results of a rock-magnetic study of obsidians from central Mexico |
| Auteur: |
Jaime Urrutia Fucugauchi |
| Verschenen in: |
Geofísica internacional |
| Paginering: | Jaargang 38 (1999) nr. 2 pagina's 83-94 |
| Jaar: |
1999 |
| Inhoud: |
We discuss the influence of solar activity on pluvial precipitation from time series of Lithuania (1910-1993) and Estonia (1866-1993), and using data of sunspots areas (1866-1993). By means of autoregressive and spectral methods for monthly and annual series we obtain significant cycles for solar and terrestrial processes with periods of 6 and 12 months, and 2.5 and 11 years. The analysis of the annual series of Estonian precipitation and sunspot areas features changes in the 11 year cycle, reduced to 9 years between 1915 and 1956; also, a significant oscillation with a period of 5 years in the last 6 decades was determined. The cospectra of the solar and climatic processes agree with other works and support the common nature of all cycles and the influence of the solar activity on the climate variability. |
| Uitgever: |
Universidad Nacional Autónoma de México (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 69 van 94 gevonden artikelen
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