Assessing drought impacts on groundwater and agriculture in Iran using high-resolution precipitation and evapotranspiration products

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F24%3A100801" target="_blank" >RIV/60460709:41330/24:100801 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.jhydrol.2024.130828" target="_blank" >https://doi.org/10.1016/j.jhydrol.2024.130828</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jhydrol.2024.130828" target="_blank" >10.1016/j.jhydrol.2024.130828</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Assessing drought impacts on groundwater and agriculture in Iran using high-resolution precipitation and evapotranspiration products

Popis výsledku v původním jazyce

Accurate identification of drought events, supported by reliable and consistent spatiotemporal data, is essential for the development of efficient management and mitigation plans. The objectives of this study are twofold. First, we evaluate a wide range of global precipitation and potential evapotranspiration (PET) products versus in-situ observations for the period of 2001-2016 to identify the best-performing ones for drought assessment. Second, we assess the drought impact on groundwater storage and agricultural yield using Standardized Precipitation Index (SPI) and Standardized Precipitation Evapotranspiration Index (SPEI). The impact of drought on groundwater and agricultural yield was examined by investigating the association between SPI and SPEI with the Gravity Recovery and Climate Experiment (GRACE) satellite data, total crop production (CP), and total wheat production (WP). The results showed that the most severe and prolonged droughts occurred primarily in northwest highlands, northeastern regions, and southern regions, with SPI values indicating more intense drought events than SPEI values. While the SPEI index was found to be more suitable for assessing long-term drought severity, the SPI index was more sensitive to short-term precipitation deficits. Groundwater storage changes were found to be highly associated with SPEI/SPI at longer time scales. Furthermore, the results indicate that the strongest association between drought and yield loss occurs at the 9-month time scale. However, SPI exhibits a higher association with crop yield compared to SPEI. These findings can contribute to the development of drought management and response strategies.

Název v anglickém jazyce

Assessing drought impacts on groundwater and agriculture in Iran using high-resolution precipitation and evapotranspiration products

Popis výsledku anglicky

Accurate identification of drought events, supported by reliable and consistent spatiotemporal data, is essential for the development of efficient management and mitigation plans. The objectives of this study are twofold. First, we evaluate a wide range of global precipitation and potential evapotranspiration (PET) products versus in-situ observations for the period of 2001-2016 to identify the best-performing ones for drought assessment. Second, we assess the drought impact on groundwater storage and agricultural yield using Standardized Precipitation Index (SPI) and Standardized Precipitation Evapotranspiration Index (SPEI). The impact of drought on groundwater and agricultural yield was examined by investigating the association between SPI and SPEI with the Gravity Recovery and Climate Experiment (GRACE) satellite data, total crop production (CP), and total wheat production (WP). The results showed that the most severe and prolonged droughts occurred primarily in northwest highlands, northeastern regions, and southern regions, with SPI values indicating more intense drought events than SPEI values. While the SPEI index was found to be more suitable for assessing long-term drought severity, the SPI index was more sensitive to short-term precipitation deficits. Groundwater storage changes were found to be highly associated with SPEI/SPI at longer time scales. Furthermore, the results indicate that the strongest association between drought and yield loss occurs at the 9-month time scale. However, SPI exhibits a higher association with crop yield compared to SPEI. These findings can contribute to the development of drought management and response strategies.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

<a href="/cs/project/GM22-33266M" target="_blank" >GM22-33266M: Vyhodnocení intenzifikace suchozemského hydrologického cyklu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Hydrology

ISSN

0022-1694

e-ISSN

0022-1694

Svazek periodika

631

Číslo periodika v rámci svazku

130828

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

15

Strana od-do

1-15

Kód UT WoS článku

001182654700001

EID výsledku v databázi Scopus

2-s2.0-85184991379