Trend Analysis of Drought Characteristics in Iran Using Univariate and Multivariate Idices

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

Abdollahi Sana; Bazrafshan Ommolbanin; Shekari Marzieh

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Journal of Irrigation and Water Engineering Year:2022 | Volume:12 | Issue:48 Page(s): 334-353

Download Full-Text

Persian Verion

View:

Download:

Cites:

Information Journal Paper

Title

Trend Analysis of Drought Characteristics in Iran Using Univariate and Multivariate Idices

Author(s)

Abdollahi Sana | Bazrafshan Ommolbanin | Shekari Marzieh | Issue Writer Certificate

Keywords

Drought characteristics

Experimental Copula

Joint Deficit Index

multivariate analysis

Trend Analysis

Abstract

The drought phenomenon contains important characteristics, including duration, severity, peak and frequency. In this study, two indices of drought assessment consist of univariate index (Standardized Precipitation Index: SPI) and multivariate copula-based index (JDI: Joint Deficit Index) are compared. In this regard, the Drought characteristics, including the severity, duration, and drought frequency have been studied in 39 synoptic stations of Iran during the 1965–2014. The results showed that the longest duration and maximum severity of each station belongs to the JDI. Also, the frequency of drought in different classes shows the JDI estimates the drought frequency with high accurately, but the SPI‐12 provided an unexpected estimation is some stations. In addition, the results of the Mann-Kendall test for the Drought characteristics showed that the drought trend with JDI is decreasing while SPI-12 does not show a significant trend in the most stations. Finally, the results showed that JDI provides a complete drought assessment for decision makers and water resource managers.

Multimedia

No record.

Cites

No record.

References

No record.

Cite

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans