Authors: Arif Alkozay and Farshid Adil
Arif Alkozay Farshid Adil
Topic: Assessment of meteorological drought using Standard Precipitation Index model (SPI) in Herat, Afghanistan
Publication link:
https://lnkd.in/eF9Ejrue
Journal: International Journal of Multidisciplinary Approach Research and Science
Published date: Nov, 2023
Abstract
Drought assessment is a critical aspect of drought risk management, as it primarily results from reduced precipitation compared to the mean value, affecting soil moisture and water resources. Drought indices typically quantify precipitation deviations from long-term means over specific timeframes. The Standard Precipitation Index (SPI) is commonly used to capture temporal and spatial variations. This research aims to evaluate the intensity, frequency, and duration of meteorological drought using SPI with time scales of 1, 3, 6, and 12 months in Herat Province, Afghanistan. The study encompasses 6 gauging stations with a 43-year record period in the region. The results show that with an increase in the time scale, the duration and frequency of drought increase. Additionally, the study reveals that the common extreme drought year for all stations was the year 2001, but the most extreme occurred in the year 2009, with an intensity two times greater than that of the year 2001. Due to the discrepancy of drought occurrence in each station, the findings suggest that for better drought management in the country, it is essential to analyze droughts in each local location. Over the past 43 years, the Cheldkhtaran station experienced the highest proportion of time in drought, accounting for 28.5%. Similarly, the Khosh Rabat station experienced droughts for 26.4%, the Nazdik-i-Heart station for 27.7%, the Pul-i-Hashemi station for 23.6%, and the Rabat-i-Akhund station for 26.9% of their respective time in the past 43 year.
Key words: Meteorological Drought, Standardized Precipitation Index, Drought Management, Herat province.
This abstract is part of a complete research report which is done by the author of this abstract. The research is conducted in a mentorship process with supervision of academic mentors as part of a learning program. The complete research article publication is subject to a peer review process and establishment of a research journal within Unisfere.
All rights reserved
@Unisefere
2023