I tornado negli USA: un'analisi dell'archivio dati (1950-2018)
A statistical analysis of the data contained in the NOAA’s Storm Prediction Center tornado archive (covering the period 1950-2018) has been carried out. The actual average values of the frequencies for the various intensity classes could be effectively provided for the period 1991-2018, because of s...
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| Language: | English |
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Firenze University Press
2021-07-01
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| Series: | Bollettino della Società Geografica Italiana |
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| Online Access: | https://riviste.fupress.net/index.php/bsgi/article/view/1208 |
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| author | Sergio Pinna |
| author_facet | Sergio Pinna |
| author_sort | Sergio Pinna |
| collection | DOAJ |
| description | A statistical analysis of the data contained in the NOAA’s Storm Prediction Center tornado archive (covering the period 1950-2018) has been carried out. The actual average values of the frequencies for the various intensity classes could be effectively provided for the period 1991-2018, because of some inhomogeneities of the archive due to variations in the methods and procedures of tornado reporting. The time series of the frequency of F2, F3, F4 and F5 events showed decreasing trends; this decline seems largely due to a significant reduction of the strongest events. This interpretation is supported by the decreasing trends of normalized economic losses and of number of victims. |
| format | Article |
| id | doaj-art-5373ffd8a86b4df38df2e05b2a671ca8 |
| institution | Kabale University |
| issn | 1121-7820 |
| language | English |
| publishDate | 2021-07-01 |
| publisher | Firenze University Press |
| record_format | Article |
| series | Bollettino della Società Geografica Italiana |
| spelling | doaj-art-5373ffd8a86b4df38df2e05b2a671ca82025-08-20T03:33:17ZengFirenze University PressBollettino della Società Geografica Italiana1121-78202021-07-013210.36253/bsgi-1208I tornado negli USA: un'analisi dell'archivio dati (1950-2018)Sergio Pinna0Dipartimento Civiltà e Forme del Sapere, Università di PisaA statistical analysis of the data contained in the NOAA’s Storm Prediction Center tornado archive (covering the period 1950-2018) has been carried out. The actual average values of the frequencies for the various intensity classes could be effectively provided for the period 1991-2018, because of some inhomogeneities of the archive due to variations in the methods and procedures of tornado reporting. The time series of the frequency of F2, F3, F4 and F5 events showed decreasing trends; this decline seems largely due to a significant reduction of the strongest events. This interpretation is supported by the decreasing trends of normalized economic losses and of number of victims.https://riviste.fupress.net/index.php/bsgi/article/view/1208tornadoUSAFujita intensityfrequencytime series |
| spellingShingle | Sergio Pinna I tornado negli USA: un'analisi dell'archivio dati (1950-2018) Bollettino della Società Geografica Italiana tornado USA Fujita intensity frequency time series |
| title | I tornado negli USA: un'analisi dell'archivio dati (1950-2018) |
| title_full | I tornado negli USA: un'analisi dell'archivio dati (1950-2018) |
| title_fullStr | I tornado negli USA: un'analisi dell'archivio dati (1950-2018) |
| title_full_unstemmed | I tornado negli USA: un'analisi dell'archivio dati (1950-2018) |
| title_short | I tornado negli USA: un'analisi dell'archivio dati (1950-2018) |
| title_sort | i tornado negli usa un analisi dell archivio dati 1950 2018 |
| topic | tornado USA Fujita intensity frequency time series |
| url | https://riviste.fupress.net/index.php/bsgi/article/view/1208 |
| work_keys_str_mv | AT sergiopinna itornadonegliusaunanalisidellarchiviodati19502018 |