Zoning and analysis of pervasive rainfall in rainy areas of Iran In the statistical period of 30 years (1987-1987)
Precipitation is a phenomenon resulting from complex atmospheric interactions and among climatic events, due to its vital role, it has special importance. The importance of precipitation durability, especially in arid and semi-arid regions, which includes most of Iran, is greater than its volume. Th...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | fas |
| Published: |
Kharazmi University
2023-12-01
|
| Series: | تحقیقات کاربردی علوم جغرافیایی |
| Subjects: | |
| Online Access: | http://jgs.khu.ac.ir/article-1-3745-en.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832575677127196672 |
|---|---|
| author | Maryam saghafi Gholamreza Barati Bohloul Alijani Mohammad Moradi |
| author_facet | Maryam saghafi Gholamreza Barati Bohloul Alijani Mohammad Moradi |
| author_sort | Maryam saghafi |
| collection | DOAJ |
| description | Precipitation is a phenomenon resulting from complex atmospheric interactions and among climatic events, due to its vital role, it has special importance. The importance of precipitation durability, especially in arid and semi-arid regions, which includes most of Iran, is greater than its volume. The purpose of this study is to identify Iran's precipitation areas in terms of precipitation durability and its characteristics in each area. In order to investigate the durability of Iran's precipitation and to define a precipitation day as " a day with equal precipitation or greater than 0.5 mm", used from daily precipitation data of 80 synoptic stations of the country during the 6 cold months of the year from October to March in a period of 30 years (2016 - 1987). Setting data in daily tables in the first step, made possible to program in MATLAB environment to separate precipitation in ten groups from "one day" to "ten days" and in the second step in SPSS environment based on frequency characteristics, amount and precipitations average in the mentioned groups was done by the method of Ward merging and clustering. The process of the clustering on Iran's durability precipitation showed that there are seven almost homogeneous precipitation zones in Iran; the geographical arrangement of Iran's precipitation areas, reveals the dependence of Iran's precipitations amount on roughness, the path of precipitation systems, its proximity to humidity sources, and the effect of the sea. In terms of area’s location, it can be said that; the settlement of the four zones in the western half of Iran, despite its small size in front of the eastern half, is a reason for its heterogeneity. |
| format | Article |
| id | doaj-art-af64420fb21c4daaafa0513e4d3a5f8f |
| institution | Kabale University |
| issn | 2228-7736 2588-5138 |
| language | fas |
| publishDate | 2023-12-01 |
| publisher | Kharazmi University |
| record_format | Article |
| series | تحقیقات کاربردی علوم جغرافیایی |
| spelling | doaj-art-af64420fb21c4daaafa0513e4d3a5f8f2025-01-31T17:30:33ZfasKharazmi Universityتحقیقات کاربردی علوم جغرافیایی2228-77362588-51382023-12-012371103121Zoning and analysis of pervasive rainfall in rainy areas of Iran In the statistical period of 30 years (1987-1987)Maryam saghafi0Gholamreza Barati1Bohloul Alijani2Mohammad Moradi3 PhD Student, Synoptic Meteorology, Faculty of Earth Sciences, Shahid Beheshti University, Tehran, Iran Associate Professor, Faculty of Earth Sciences, Shahid Beheshti University, Tehran, Iran Professor, Climatology, Faculty of Geography, Kharazmi University Associate Professor, Meteorology, Meteorological Research Center Precipitation is a phenomenon resulting from complex atmospheric interactions and among climatic events, due to its vital role, it has special importance. The importance of precipitation durability, especially in arid and semi-arid regions, which includes most of Iran, is greater than its volume. The purpose of this study is to identify Iran's precipitation areas in terms of precipitation durability and its characteristics in each area. In order to investigate the durability of Iran's precipitation and to define a precipitation day as " a day with equal precipitation or greater than 0.5 mm", used from daily precipitation data of 80 synoptic stations of the country during the 6 cold months of the year from October to March in a period of 30 years (2016 - 1987). Setting data in daily tables in the first step, made possible to program in MATLAB environment to separate precipitation in ten groups from "one day" to "ten days" and in the second step in SPSS environment based on frequency characteristics, amount and precipitations average in the mentioned groups was done by the method of Ward merging and clustering. The process of the clustering on Iran's durability precipitation showed that there are seven almost homogeneous precipitation zones in Iran; the geographical arrangement of Iran's precipitation areas, reveals the dependence of Iran's precipitations amount on roughness, the path of precipitation systems, its proximity to humidity sources, and the effect of the sea. In terms of area’s location, it can be said that; the settlement of the four zones in the western half of Iran, despite its small size in front of the eastern half, is a reason for its heterogeneity.http://jgs.khu.ac.ir/article-1-3745-en.pdfprecipitationprecipitation daydurabilityzoningiran |
| spellingShingle | Maryam saghafi Gholamreza Barati Bohloul Alijani Mohammad Moradi Zoning and analysis of pervasive rainfall in rainy areas of Iran In the statistical period of 30 years (1987-1987) تحقیقات کاربردی علوم جغرافیایی precipitation precipitation day durability zoning iran |
| title | Zoning and analysis of pervasive rainfall in rainy areas of Iran In the statistical period of 30 years (1987-1987) |
| title_full | Zoning and analysis of pervasive rainfall in rainy areas of Iran In the statistical period of 30 years (1987-1987) |
| title_fullStr | Zoning and analysis of pervasive rainfall in rainy areas of Iran In the statistical period of 30 years (1987-1987) |
| title_full_unstemmed | Zoning and analysis of pervasive rainfall in rainy areas of Iran In the statistical period of 30 years (1987-1987) |
| title_short | Zoning and analysis of pervasive rainfall in rainy areas of Iran In the statistical period of 30 years (1987-1987) |
| title_sort | zoning and analysis of pervasive rainfall in rainy areas of iran in the statistical period of 30 years 1987 1987 |
| topic | precipitation precipitation day durability zoning iran |
| url | http://jgs.khu.ac.ir/article-1-3745-en.pdf |
| work_keys_str_mv | AT maryamsaghafi zoningandanalysisofpervasiverainfallinrainyareasofiraninthestatisticalperiodof30years19871987 AT gholamrezabarati zoningandanalysisofpervasiverainfallinrainyareasofiraninthestatisticalperiodof30years19871987 AT bohloulalijani zoningandanalysisofpervasiverainfallinrainyareasofiraninthestatisticalperiodof30years19871987 AT mohammadmoradi zoningandanalysisofpervasiverainfallinrainyareasofiraninthestatisticalperiodof30years19871987 |