Persian
Language
Geographical Research is Published in Persian Fulltext.
Volume 37, Issue 4 (2022)
GeoRes 2022, 37(4): 529-540 |
Back to browse issues page
Article Type:
Subject:
History
Received: 2022/10/11 | Accepted: 2022/11/30 | Published: 2022/12/16
Received: 2022/10/11 | Accepted: 2022/11/30 | Published: 2022/12/16
How to cite this article
Derikvand S, Nasiri B, Ghaemi H, Karampoor M, Moradi M. Statistical Analysis of High- and Low-Precipitation Areas of Iran. GeoRes 2022; 37 (4) :529-540
URL: http://georesearch.ir/article-1-1395-en.html
URL: http://georesearch.ir/article-1-1395-en.html
Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
Rights and permissions
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
1- Department of Geography, Faculty of Literature and Humanities, Lorestan University, Khorramabad, Iran
2- Research Institute of Meteorology and Atmospheric Science, Tehran, Iran
2- Research Institute of Meteorology and Atmospheric Science, Tehran, Iran
Abstract (1408 Views)
Aims: Investigating and analyzing the causes of droughts and destructive floods in Iran, which is facing a water shortage, is an essential issue. One of the goals of this research was to identify the extent of areas with more or less than the average precipitation during the study period.
Methodology: The data used in this article was the daily precipitation of 117 synoptic stations in Iran during 1986-2020. Calculations were done through MATLAB 2013, Excel 2013 and SPSS 22 software, and Surfer 24.3 software was used for interpolation and drawing of maps.
Findings: The most precipitation October, the least precipitation November, and the least precipitation January during the 35 years studied were observed in 1987. January and February in 1996 were in the highest range of precipitation above their average. In March and May 2008, most of the country had a lot of precipitation. Absolute low precipitation was observed in November and January 1987 for all the studied stations (117 stations). Most of the stations with higher-than-average precipitation were in March 1996 with 102 stations. In January and December, compared to other months of the year, higher-than-average precipitation was seen with a greater extent. So that in 15 years, most of the stations involved in the load were higher than the average. In June, only in 3 years most of the stations had above average precipitation and the rest of the years the number of stations with high precipitation was very low.
Conclusion: The country's precipitation occurs in small areas most of the time. Even though, precipitation below the average occur for all stations, but rainfall above the average does not occur for all stations.
Methodology: The data used in this article was the daily precipitation of 117 synoptic stations in Iran during 1986-2020. Calculations were done through MATLAB 2013, Excel 2013 and SPSS 22 software, and Surfer 24.3 software was used for interpolation and drawing of maps.
Findings: The most precipitation October, the least precipitation November, and the least precipitation January during the 35 years studied were observed in 1987. January and February in 1996 were in the highest range of precipitation above their average. In March and May 2008, most of the country had a lot of precipitation. Absolute low precipitation was observed in November and January 1987 for all the studied stations (117 stations). Most of the stations with higher-than-average precipitation were in March 1996 with 102 stations. In January and December, compared to other months of the year, higher-than-average precipitation was seen with a greater extent. So that in 15 years, most of the stations involved in the load were higher than the average. In June, only in 3 years most of the stations had above average precipitation and the rest of the years the number of stations with high precipitation was very low.
Conclusion: The country's precipitation occurs in small areas most of the time. Even though, precipitation below the average occur for all stations, but rainfall above the average does not occur for all stations.
References
1. Asakare H (2007). Temporal-spatial changes of rainfall in Iran during recent decades. Tehran. Journal of Geography and Development. 5(10):145-164. [Persian] [Link]
2. Asakereh H, Masoodian S A, Tarkarani F (2021). Spatial Analysis of variation of inter-annual distribution of precipitation in Iran over recent decades (1970-2016). Journal of Spatial Analysis Environmental Hazards. 8(4):103-122. [Persian] [Link]
3. Amani M, Zohorian M, Borna R (2021). Spatial analysis of drought trend and calculation of reliable rainfall in Khuzestan province. Quarterly Geography and Regional Planning.1(13):97-109. [Persian] [Link]
4. Bazarafshan U, Mohseni Saravi M, Malekian A, Moeini A (2011). Investigating the drought situation of Golestan province using Standard Precipitation Index (SPI). Iranian Journal of Rangeland and Desert Research. 18(44):395-407. [Persian] [Link]
5. Darand B, Ebrahimi M (2019). Tempo-spatial analysis of precipitation waiting time duration changes in Kurdistan province. Marvdasht. Water Resources Engineering. 12(41):17-30. [Persian] [Link]
6. Davarpanah Gh (2004). The effects of flood and drought and providing solutions to deal with them. Isfahan. Journal of Water and Wastewater. 15(1):73-76. [Persian] [Link]
7. Doostan R (2020). An analysis of rainfall changes in Iran. Journal of Climate Research. 10(40):13-25. [Persian] [Link]
8. Farajzadeh M (2012). Climatic hazards of Iran. 1st ed. Tehran: Publications of Humanities Research and Development Center( SMT). [Persian] [Link]
9. Ghanbari A (2020). Spatial Analysis of Fars Province Climatic Drought from the Period 1990 to 2014. Nivar. 44(110):53-64. [Persian] [Link]
10. Ghaznavi M, Mosaedi M, Qabaei Souq (2021). The effect of breaking the time series of rainfall data on changes in drought characteristics (A case study of the cities of Tabriz and Arak). Journal of Water and Soil. 35(3):409-425. [Persian] [Link]
11. Hasanvand Z, Yarahmadi D, Lashkari H, Mirhashemi H (2022). Fractal analysis of daily rainfall in Karkheh and Dez watersheds. Larestan. Natural Geography Quarterly. 15(55):115-129. [Persian] [Link]
12. Heydari A, Shahkoui I (2017). Investigating the probability of occurrence of dry and wet periods in Mazandaran using Markov chain. Environmental studies( Natural resources and sustainable development). 4(36): 16-31. [Persian] [Link]
13. Iranpour F, Zohrevandi H (2019). Analysis of daily rainfall in Tabriz to investigate the probability of the continuation of dry and wet days. Climatology Research. 9(36): 91-105. [Persian] [Link]
14. Jahanbakhsh Asl S, Sari Saraf B, Asakareh H, Shirmohammadi S (2022). Identifying extreme precipitation events in western Iran (1965-2016). Journal of Spatial Analysis Environmental Hazards. 26(79):115-125. [Persian] [Link]
15. Khosravi A, Azari M (2022). Determining the temporal and spatial trend and point of change of temperature and precipitation in Kashf River basin. Scientific Journals Management System. 22(66):289-306. [Persian] [Link] [DOI:10.52547/jgs.22.66.289]
16. Li S, Li G, Wang X, Li C, Liu H, Li G (2020). Precipitation Characteristics of an Abrupt Heavy Rainfall Event over the Complex Terrain of Southwest China Observed by the FY-4A Satellite and Doppler Weather Radar. Water. 12(9):2502. [Link] [DOI:10.3390/w12092502]
17. Li W, Bi X, Sheng L, Luo Y (2021). Sun Jianhua modulations of synoptic weather patterns on warm-sector heavy rainfall in south China: Insights from high-density observations with principal component analysis. Frontiers in Earth Science. (9):1-12. [Link] [DOI:10.3389/feart.2021.678230]
18. Masoudian A, Kaviani M (2007). Climatology of Iran. Isfahan: Isfahan University Press. [Link]
19. Mazidi A, Salamati Hormozi V, Omidvar K, Mozafari G (2022). Revealing the temporal-spatial changes of precipitation in southeast Iran. Geographical explorations of desert areas. 5(18):47-64. [Persian] [Link]
20. Mohammadi B, Masoudian A (2010). Synopsis analysis of heavy rainfall in Iran, a case study. November 1373. Geography and Development. 8(19):47-70. [Persian] [Link]
21. Mohammadyarian M, Taavosi T, Khosravi M, Hamidianpour M (2019). Zoning of Iran's extreme rainfall regime in the 20-year period. Tehran. Journal of Geographical Research. 34:192-183. [Persian] [Link] [DOI:10.29252/geores.34.2.183]
22. Mohteshmi A, Nasiriyan A (2015). Drought monitoring of South Khorasan province using standard precipitation index (SPI). Iran National Irrigation and Drainage Congress. 17(1):177-181. [Persian] [Link]
23. Mirian M, Moradi M, Ghaemi H, Nasiri B, Karampoor M (2022). Analysis of statistics and anomalies of 50-year rainfall of Iran's synoptic stations (period 1960-2010). Applied Research of Geographical Sciences. 67(17):327-343. [Persian] [Link]
24. Sadaqat M (2001). Iran's water resources and issues. 7th ed. Tehran: Payam-e Noor University Publications. [Persian] [Link]
25. Salimi Mostala A, Khoshkhoo Y, Gholizadeh M (2019). Assessing and zoning the risk of extreme rainfall in western Iran. Journal of Water and Soil Consevation. 26(1): 49-69. [Persian] [Link]
26. Shokohi A, Hosseini N, Bakhtiari A (2018). Flood forecasting using the Standard Precipitation Index (SPI) on a daily scale.Tabriz. Journal of Civil and Environmental Engineering (University of Tabriz). 48(91):27-35. [Persian] [Link]
27. Soro, GE, Noufé D, Goula Bi TA, Shorohou B (2016). Trend analysis for extreme rainfall at sub-daily and daily timescales in Côte d'Ivoire. Climate. 4(3):37. [Link] [DOI:10.3390/cli4030037]
28. Torabipoodeh H, Izadjo F, Hamehzadeh P (2018). Analysis of changes in total precipitation and effective precipitation in the whole of Iran. Iranian Water Research Journal. 12(4):1-10. [Persian] [Link]
29. Zeynali BA, Minaei S, Foroutan M (2020). Statistical and synoptic study of super heavy rainfall in Guilan province. Jornal of Environmental Sciences Studies. 7(4):5682-5695. [Persian] [Link]