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Kaboli, S., Hekmatzadeh, A.A., Darabi, H. et al. Variation in physical characteristics of rainfall in Iran, determined using daily rainfall concentration index and monthly rainfall percentage index. Theor Appl Climatol 144, 507–520 (2021). https://doi.org/10.1007/s00704-021-03553-9

Variation in physical characteristics of rainfall in Iran, determined using daily rainfall concentration index and monthly rainfall percentage index

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Author: Kaboli, Sadegh1; Hekmatzadeh, Ali Akbar1; Darabi, Hamid2;
Organizations: 1Department of Civil and Environmental Engineering, Shiraz University of Technology, Po. Box 71555-313, Shiraz, Iran
2Water, Energy and Environmental Engineering Research Unit, University of Oulu, PO Box 4300, F IN-90014, Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 4.3 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe2021042111291
Language: English
Published: Springer Nature, 2021
Publish Date: 2021-04-21
Description:

Abstract

Variations in rainfall characteristics play a key role in available water resources for a country. In this study, spatial and temporal variations in rainfall in Iran were determined using the daily rainfall concentration index (DRCI) and monthly rainfall percentage index (MRPI), based on 30-year (1987–2016) daily precipitation records from 80 meteorological stations throughout Iran. The results showed that MRPI differed between locations within Iran, with increasing or decreasing trends observed in different areas. The highest significant decreasing trend in MRPI (3–7% per decade) was found for March rainfall in western Iran, and the highest increasing trend in MRPI (3–7% per decade) for November rainfall in eastern and southern Iran. The DRCI values obtained varied from 0.57 to 0.71, indicating moderate and high rainfall concentrations, with the highest DRCI values in coastal zones of Iran near the Caspian Sea and the Persian Gulf. Trend analysis showed increasing trends in DRCI values at 80% of meteorological stations, and these trends were significant at 37% of those stations.

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Series: Theoretical and applied climatology
ISSN: 0177-798X
ISSN-E: 1434-4483
ISSN-L: 0177-798X
Volume: 144
Issue: 1-2
Pages: 507 - 520
DOI: 10.1007/s00704-021-03553-9
OADOI: https://oadoi.org/10.1007/s00704-021-03553-9
Type of Publication: A1 Journal article – refereed
Field of Science: 218 Environmental engineering
Subjects:
Article
Funding: Open access funding provided by University of Oulu including Oulu University Hospital.
Copyright information: © The Author(s) 2021. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
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