| Title: |
Evaluation of climate indices related to water resources in Iran over the past 3 decades |
| Authors: |
Fatemeh Chaparinia; Mostafa Hadei; Kamyar Yaghmaeian; Mahdi Hadi; Kazem Naddafi |
| Source: |
Scientific Reports, Vol 15, Iss 1, Pp 1-14 (2025) |
| Publisher Information: |
Nature Portfolio, 2025. |
| Publication Year: |
2025 |
| Collection: |
LCC:Medicine; LCC:Science |
| Subject Terms: |
Global warming; Water crisis; Water management; Climate adaptation; Drought; Medicine; Science |
| Description: |
Abstract Climate change has significantly altered water resources globally. This study examines the effects of climate change on Iran’s water resources using twelve climate indices developed by the Expert Team on Climate Change Detection and Indices (ETCCDI) from 1992 to 2022. Daily climate data were obtained from the Global Surface Summary of the Day (GSOD) database, which includes quality-controlled data from Iran’s Meteorological Organization. The GSOD data undergo extensive automated quality control processes to eliminate random errors and ensure data reliability. Long-term trends were analyzed using linear regression, and spatial patterns were identified using K-means and hierarchical clustering methods. Analysis of 29 provincial capitals revealed significant trends in precipitation and temperature patterns. Temperature indices showed widespread increases, with 75.86% of cities experiencing significant rises in Mean daily mean temperature (TMm) (p 0.05). The Consecutive Dry Days (CDD) index showed a significant increase in 14.81% of the cities, with Khorramabad experiencing the highest increase of 4.4 days/year (p |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2045-2322 |
| Relation: |
https://doaj.org/toc/2045-2322 |
| DOI: |
10.1038/s41598-025-95370-7 |
| Access URL: |
https://doaj.org/article/c1b8adeec0044e8984dae4cacc5f2562 |
| Accession Number: |
edsdoj.1b8adeec0044e8984dae4cacc5f2562 |
| Database: |
Directory of Open Access Journals |