Preliminary results of a rock-magnetic study of obsidians from central Mexico
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 an...
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| Format: | Article |
| Language: | English |
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Universidad Nacional Autónoma de México, Instituto de Geofísica
1999-10-01
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| Series: | Geofísica Internacional |
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| Online Access: | http://www.geofisica.unam.mx/unid_apoyo/editorial/publicaciones/investigacion/geofisica_internacional/anteriores/1999/02/urrutia.pdf |