Seasonal Rainfall Forecasting Based on Synoptical Patterns Using Phasic Sets Theory
In this research, we have used from Phasic sets theory for seasonal rainfall forecasting from Dec to May in Razavi Khorasan, North Khorasan and South Khorasan Provinces. This method includes three steps. In the first step, relationships between synoptical patterns variation including Sea Level Pres...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | fas |
| Published: |
University of Sistan and Baluchestan
2009-09-01
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| Series: | جغرافیا و توسعه |
| Subjects: | |
| Online Access: | https://gdij.usb.ac.ir/article_1192_cfdbd39b0a9356c15a746759051f1142.pdf |
| _version_ | 1797805182764974080 |
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| author | golamabas falah sedmohamad mosavei magid habibinokhandan gavad khoshal |
| author_facet | golamabas falah sedmohamad mosavei magid habibinokhandan gavad khoshal |
| author_sort | golamabas falah |
| collection | DOAJ |
| description | In this research, we have used from Phasic sets theory for seasonal rainfall forecasting from Dec to May in Razavi Khorasan, North Khorasan and South Khorasan Provinces. This method includes three steps. In the first step, relationships between synoptical patterns variation including Sea Level Pressure (SLP), Sea Surface Temperature (SST), Sea Surface Pressure Difference (DSLP), Sea Surface Temperature (DSSt), 1000 millibar Surface, Air Temperature at 850 hpa, Geopotential Height at 500 hpa and Relative Humidity at 300 hpa with average precipitation with average precipitation are investigated. In the second step, model was calibrated from1970 to 1992. Sensitiveness analysis is used for obtaining the best phasic rules structure and membership functions. In final step, rainfall prediction is performed from 1993 to 2002. Results showed that phasic sets theory can successfully predict amount of the rainfall. |
| first_indexed | 2024-03-13T05:48:12Z |
| format | Article |
| id | doaj.art-c800f90ed81343e2910b3e91ad526cc8 |
| institution | Directory Open Access Journal |
| issn | 1735-0735 2676-7791 |
| language | fas |
| last_indexed | 2024-03-13T05:48:12Z |
| publishDate | 2009-09-01 |
| publisher | University of Sistan and Baluchestan |
| record_format | Article |
| series | جغرافیا و توسعه |
| spelling | doaj.art-c800f90ed81343e2910b3e91ad526cc82023-06-13T20:07:36ZfasUniversity of Sistan and Baluchestanجغرافیا و توسعه1735-07352676-77912009-09-0171511313210.22111/gdij.2009.11921192Seasonal Rainfall Forecasting Based on Synoptical Patterns Using Phasic Sets Theorygolamabas falahsedmohamad mosaveimagid habibinokhandangavad khoshalIn this research, we have used from Phasic sets theory for seasonal rainfall forecasting from Dec to May in Razavi Khorasan, North Khorasan and South Khorasan Provinces. This method includes three steps. In the first step, relationships between synoptical patterns variation including Sea Level Pressure (SLP), Sea Surface Temperature (SST), Sea Surface Pressure Difference (DSLP), Sea Surface Temperature (DSSt), 1000 millibar Surface, Air Temperature at 850 hpa, Geopotential Height at 500 hpa and Relative Humidity at 300 hpa with average precipitation with average precipitation are investigated. In the second step, model was calibrated from1970 to 1992. Sensitiveness analysis is used for obtaining the best phasic rules structure and membership functions. In final step, rainfall prediction is performed from 1993 to 2002. Results showed that phasic sets theory can successfully predict amount of the rainfall.https://gdij.usb.ac.ir/article_1192_cfdbd39b0a9356c15a746759051f1142.pdfrainfall forecastingsynoptical patternsphasic sets theory |
| spellingShingle | golamabas falah sedmohamad mosavei magid habibinokhandan gavad khoshal Seasonal Rainfall Forecasting Based on Synoptical Patterns Using Phasic Sets Theory جغرافیا و توسعه rainfall forecasting synoptical patterns phasic sets theory |
| title | Seasonal Rainfall Forecasting Based on Synoptical Patterns
Using Phasic Sets Theory |
| title_full | Seasonal Rainfall Forecasting Based on Synoptical Patterns
Using Phasic Sets Theory |
| title_fullStr | Seasonal Rainfall Forecasting Based on Synoptical Patterns
Using Phasic Sets Theory |
| title_full_unstemmed | Seasonal Rainfall Forecasting Based on Synoptical Patterns
Using Phasic Sets Theory |
| title_short | Seasonal Rainfall Forecasting Based on Synoptical Patterns
Using Phasic Sets Theory |
| title_sort | seasonal rainfall forecasting based on synoptical patterns using phasic sets theory |
| topic | rainfall forecasting synoptical patterns phasic sets theory |
| url | https://gdij.usb.ac.ir/article_1192_cfdbd39b0a9356c15a746759051f1142.pdf |
| work_keys_str_mv | AT golamabasfalah seasonalrainfallforecastingbasedonsynopticalpatternsusingphasicsetstheory AT sedmohamadmosavei seasonalrainfallforecastingbasedonsynopticalpatternsusingphasicsetstheory AT magidhabibinokhandan seasonalrainfallforecastingbasedonsynopticalpatternsusingphasicsetstheory AT gavadkhoshal seasonalrainfallforecastingbasedonsynopticalpatternsusingphasicsetstheory |