دورية أكاديمية
Evaluation of Drought Using Meteorological Drought Indices, a Case Study: Alanya (Türkiye)
| العنوان: | Evaluation of Drought Using Meteorological Drought Indices, a Case Study: Alanya (Türkiye) |
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| المؤلفون: | Redvan Ghasemlounia, Mustafa Utlu |
| المصدر: | Doğal Afetler ve Çevre Dergisi, Vol 10, Iss 1, Pp 192-210 (2024) |
| بيانات النشر: | Artvin Corun University, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Disasters and engineering LCC:Environmental sciences |
| مصطلحات موضوعية: | drought, z-score index (zsi), modified china z index (mczi), standardized precipitation index (spi), china z index (czi), Disasters and engineering, TA495, Environmental sciences, GE1-350 |
| الوصف: | Drought is one of the most important challenges that many countries, especially countries in the Middle East region, are struggling with. Based on this, the study and monitoring of hydrological and drought factors is an important issue that can have a significant impact on management decisions in the field of water resources, especially in crisis management. Therefore, investigating the drought parameters is very important to understand the drought situation of a region. In this study, Alanya region, which is located on the southern coast of Turkey, was selected as a case study for drought analysis. Four drought indices for the selected region including: China Z-Index (CZI), Standardized Precipitation Index (SPI), Modified China Z-Index (MCZI) and Z-Score Index (ZSI) have been investigated. All these indicators have been investigated and evaluated using time scales of 1, 6, 12 and 24 months, the coefficient of determination (R2) has been calculated for each drought index with a different time scale and their results have been compared. The findings of the research showed that SPI and CZI drought indices performed better than other selected drought indices in identifying and effectively tracking drought severity. In addition to the study of dry events, wet events were also investigated, which indicates the presence of consecutive floods in the last years of the studied period in the region. The results indicated similar very dry events for the selected indicators in the 6-month period. Also, the rainfall trend for the period of 2015-2022 was taken into consideration to examine the rainfall of the last eight years. The results show that precipitation has decreased in recent years and has a downward trend in most months of the period in question, and the possibility of flood events due to sudden showers in the region has increased due to the continuation of droughts experienced in the years before 2015. Investigating soil moisture and vegetation for the selected period in the study area is also important for the evaluation of the drought level. Evaluation of the available land (vegetation) cover maps of the years 1975, 1985, 2000, 2010, 2020 and 2022 show that the vegetation cover has weakened over the years, and it has been evaluated as an indicator that the danger of drought in the region has increased. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English Turkish |
| تدمد: | 2528-9640 |
| Relation: | http://dacd.artvin.edu.tr/tr/download/article-file/3403100; https://doaj.org/toc/2528-9640 |
| DOI: | 10.21324/dacd.1359193 |
| URL الوصول: | https://doaj.org/article/23583526110646c885c70c97423235a3 |
| رقم الأكسشن: | edsdoj.23583526110646c885c70c97423235a3 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 25289640 |
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| DOI: | 10.21324/dacd.1359193 |