Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/12603
Title: Meteorological drought analysis for Helmand River Basin, Afghanistan
Authors: Alami, Mohammad Musa
Tayfur, Gökmen
Keywords: Drought indices
Helmand River Basin
Deciles
Issue Date: Jul-2022
Publisher: TMMOB İnşaat Mühendisleri Odası
Abstract: This study evaluates drought at Lashkargah, Farah, Adraskan, and Gardandiwal stations in Helmand River Basin (HRB) in Afghanistan to determine appropriate drought indices for the basin. Thirty seven years of monthly recorded precipitation data from 1979 to 2015 are employed with different drought index (DI) methods which include the Standardized Precipitation Index (Normal-SPI, Log-SPI, and Gamma-SPI), the Percent of Normal (PN), and the Deciles. All the methods are applied to the annual long term precipitation data. The log-SPI and the gamma-SPI predict extreme drought conditions, whereas, the normal-SPI determines wet and less dry conditions. The results emphasize that the PN and the Deciles methods predict more drought years in comparison to the SPI methods. The Deciles method shows longer period of extreme and severe drought than other methods. The five methods indicate various drought intensities in 1985, 1987, 1994, 1997, 1999, 2000, 2001, 2002, 2003, and 2004 at all the stations. The extreme drought condition in 2001 at all the stations confirms to the recorded drought reports for the same region. It is noted that since the log-SPI and the gamma-SPI capture the historical extreme and severe drought periods successfully, these are recommended as the drought monitoring indices for Helmand River Basin.
URI: https://doi.org/10.18400/tekderg.868595
https://hdl.handle.net/11147/12603
https://search.trdizin.gov.tr/yayin/detay/536247
Appears in Collections:Civil Engineering / İnşaat Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
TR Dizin İndeksli Yayınlar / TR Dizin Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Files in This Item:
File Description SizeFormat 
10.18400-tekderg.868595-1534434.pdfArticle (Makale)4.08 MBAdobe PDFView/Open
Show full item record



CORE Recommender

SCOPUSTM   
Citations

2
checked on Feb 16, 2024

WEB OF SCIENCETM
Citations

1
checked on Feb 2, 2024

Page view(s)

114
checked on Feb 19, 2024

Download(s)

48
checked on Feb 19, 2024

Google ScholarTM

Check




Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.