Precipitation Gradient and Maximum 24-Hour Rainfall in the Chahardangeh Watershed
Spatial variations in precipitation have diverse effects on water resource management at the watershed level. Therefore, analyzing the spatial distribution of various precipitation parameters is crucial for estimating water balance errors and improving decision-making processes. This study aims to i...
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| Format: | Article |
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Assist. Prof. Dr. Roohollah Taherkhani
2025-03-01
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| Series: | مهندسی و مدیریت ساخت |
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| Online Access: | https://www.jecm.ir/article_216525_905c404727a23573624bb1e9efdeb21b.pdf |
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| author | Mojtaba Farhadzadeh Fatemeh Tamjid Parisa Maleki |
| author_facet | Mojtaba Farhadzadeh Fatemeh Tamjid Parisa Maleki |
| author_sort | Mojtaba Farhadzadeh |
| collection | DOAJ |
| description | Spatial variations in precipitation have diverse effects on water resource management at the watershed level. Therefore, analyzing the spatial distribution of various precipitation parameters is crucial for estimating water balance errors and improving decision-making processes. This study aims to investigate the distribution of monthly and seasonal precipitation, precipitation gradient, estimation of maximum 24-hour rainfall, and the development of an annual isohyetal map for the Chahardangeh watershed in Sari, Mazandaran Province. To analyze annual precipitation in the study area, data from 23 meteorological stations, selected based on quantitative and qualitative adequacy, were used for a 50-year reference period (1972–2022). The isohyetal map was generated in a GIS environment using data from all stations within the reference period and auxiliary stations for validation purposes. The results indicate that autumn and winter account for over 60% of the total seasonal precipitation in the Chahardangeh watershed. The precipitation gradient curve reveals a negative correlation between elevation and precipitation, meaning that rainfall decreases as elevation increases. Based on the isohyetal map, the average annual precipitation in the Chahardangeh watershed is approximately 479 mm. The maximum 24-hour rainfall for 2-year and 100-year return periods was estimated using an averaging method, yielding approximately 44 mm and 103 mm, respectively. |
| format | Article |
| id | doaj-art-e6478b1646aa4b6491c62803525efaa7 |
| institution | OA Journals |
| issn | 2538-1903 2538-2578 |
| language | fas |
| publishDate | 2025-03-01 |
| publisher | Assist. Prof. Dr. Roohollah Taherkhani |
| record_format | Article |
| series | مهندسی و مدیریت ساخت |
| spelling | doaj-art-e6478b1646aa4b6491c62803525efaa72025-08-20T02:36:07ZfasAssist. Prof. Dr. Roohollah Taherkhaniمهندسی و مدیریت ساخت2538-19032538-25782025-03-01926871216525Precipitation Gradient and Maximum 24-Hour Rainfall in the Chahardangeh WatershedMojtaba Farhadzadeh0Fatemeh Tamjid1Parisa Maleki2Mazandaran Regional Water CompanyMazandaran Regional Water CompanyMazandaran Regional Water CompanySpatial variations in precipitation have diverse effects on water resource management at the watershed level. Therefore, analyzing the spatial distribution of various precipitation parameters is crucial for estimating water balance errors and improving decision-making processes. This study aims to investigate the distribution of monthly and seasonal precipitation, precipitation gradient, estimation of maximum 24-hour rainfall, and the development of an annual isohyetal map for the Chahardangeh watershed in Sari, Mazandaran Province. To analyze annual precipitation in the study area, data from 23 meteorological stations, selected based on quantitative and qualitative adequacy, were used for a 50-year reference period (1972–2022). The isohyetal map was generated in a GIS environment using data from all stations within the reference period and auxiliary stations for validation purposes. The results indicate that autumn and winter account for over 60% of the total seasonal precipitation in the Chahardangeh watershed. The precipitation gradient curve reveals a negative correlation between elevation and precipitation, meaning that rainfall decreases as elevation increases. Based on the isohyetal map, the average annual precipitation in the Chahardangeh watershed is approximately 479 mm. The maximum 24-hour rainfall for 2-year and 100-year return periods was estimated using an averaging method, yielding approximately 44 mm and 103 mm, respectively.https://www.jecm.ir/article_216525_905c404727a23573624bb1e9efdeb21b.pdfprecipitation gradientisohyetal mapmaximum 24-hour rainfallwatershedchahardangeh |
| spellingShingle | Mojtaba Farhadzadeh Fatemeh Tamjid Parisa Maleki Precipitation Gradient and Maximum 24-Hour Rainfall in the Chahardangeh Watershed مهندسی و مدیریت ساخت precipitation gradient isohyetal map maximum 24-hour rainfall watershed chahardangeh |
| title | Precipitation Gradient and Maximum 24-Hour Rainfall in the Chahardangeh Watershed |
| title_full | Precipitation Gradient and Maximum 24-Hour Rainfall in the Chahardangeh Watershed |
| title_fullStr | Precipitation Gradient and Maximum 24-Hour Rainfall in the Chahardangeh Watershed |
| title_full_unstemmed | Precipitation Gradient and Maximum 24-Hour Rainfall in the Chahardangeh Watershed |
| title_short | Precipitation Gradient and Maximum 24-Hour Rainfall in the Chahardangeh Watershed |
| title_sort | precipitation gradient and maximum 24 hour rainfall in the chahardangeh watershed |
| topic | precipitation gradient isohyetal map maximum 24-hour rainfall watershed chahardangeh |
| url | https://www.jecm.ir/article_216525_905c404727a23573624bb1e9efdeb21b.pdf |
| work_keys_str_mv | AT mojtabafarhadzadeh precipitationgradientandmaximum24hourrainfallinthechahardangehwatershed AT fatemehtamjid precipitationgradientandmaximum24hourrainfallinthechahardangehwatershed AT parisamaleki precipitationgradientandmaximum24hourrainfallinthechahardangehwatershed |