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 |
| _version_ | 1827851492595335168 |
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| author | Jaime Urrutia Fucugauchi |
| author_facet | Jaime Urrutia Fucugauchi |
| author_sort | Jaime Urrutia Fucugauchi |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-12T10:33:53Z |
| format | Article |
| id | doaj.art-9c4c654346fb42238aba0c7db8b58b9a |
| institution | Directory Open Access Journal |
| issn | 0016-7169 |
| language | English |
| last_indexed | 2024-03-12T10:33:53Z |
| publishDate | 1999-10-01 |
| publisher | Universidad Nacional Autónoma de México, Instituto de Geofísica |
| record_format | Article |
| series | Geofísica Internacional |
| spelling | doaj.art-9c4c654346fb42238aba0c7db8b58b9a2023-09-02T09:04:17ZengUniversidad Nacional Autónoma de México, Instituto de GeofísicaGeofísica Internacional0016-71691999-10-013828394Preliminary results of a rock-magnetic study of obsidians from central MexicoJaime Urrutia FucugauchiWe 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.http://www.geofisica.unam.mx/unid_apoyo/editorial/publicaciones/investigacion/geofisica_internacional/anteriores/1999/02/urrutia.pdfSolar-terrestrial relationshipsclimate variabilityprecipitation. |
| spellingShingle | Jaime Urrutia Fucugauchi Preliminary results of a rock-magnetic study of obsidians from central Mexico Geofísica Internacional Solar-terrestrial relationships climate variability precipitation. |
| title | Preliminary results of a rock-magnetic study of obsidians from central Mexico |
| title_full | Preliminary results of a rock-magnetic study of obsidians from central Mexico |
| title_fullStr | Preliminary results of a rock-magnetic study of obsidians from central Mexico |
| title_full_unstemmed | Preliminary results of a rock-magnetic study of obsidians from central Mexico |
| title_short | Preliminary results of a rock-magnetic study of obsidians from central Mexico |
| title_sort | preliminary results of a rock magnetic study of obsidians from central mexico |
| topic | Solar-terrestrial relationships climate variability precipitation. |
| url | http://www.geofisica.unam.mx/unid_apoyo/editorial/publicaciones/investigacion/geofisica_internacional/anteriores/1999/02/urrutia.pdf |
| work_keys_str_mv | AT jaimeurrutiafucugauchi preliminaryresultsofarockmagneticstudyofobsidiansfromcentralmexico |