Title

Hot Extremes and Climatological Drought Indicators in the Transitional Semiarid-Subtropical Region of Sinaloa, Northwest Mexico

Author

OMAR LLANES CARDENAS

OSCAR GERARDO GUTIERREZ RUACHO

Iván Hernández Romano

ENRIQUE TROYO DIEGUEZ

Access level

Open Access

Publication reference

doi: DOI: https://doi.org/10.15244/pjoes/149882

URL/URL: http://www.pjoes.com/Hot-Extremes-and-Climatological-Drought-nIndicators-in-the-Transitional-Semiarid,149882,0,2.html

ISSN/ISSN: 12301485

Summary or description

"The main goal of this study was to explore the historical and recent spatial concurrence between the frequency (F), duration (D) and intensity (I) of hot extremes (HEs) and the frequency and evolution of meteorological drought in the region of Sinaloa. Based on the values of daily maximum temperatura (Tmax) and precipitation obtained from CLImate COMputing for the interval April–October of a historical period (1963–2000) and a recent period (1982–2014), the HE and the standardized precipitation index (SPI) were calculated on one-month (SPI-1) and four-month (SPI-4) timescales. Spearman rank correlation coefficients (Sr) were used to obtain the significant concurrences (SCs) between HEs and SPI-1, and HEs and SPI-4. El Quelite weather station showed the highest historical SCs between HEs and SPI-1 (−0.66≤Sr≤−0.57). Jaina is the only station that showed SCs with all four indicators of HEs and SPI-4 (−0.47≤Sr≤−0.34). In this study, the concurrence between HEs and SPI-1, and HEs and SPI-4 was determined for the first time. These are phenomena that can decrease the crop yield, particularly for rainfed crops such as maize, sesame and sorghum in the region commonly known as “the breadbasket of Mexico."

Publisher

HARD

Publish date

2022

Publication type

Article

Publication version

Published Version

Format

application/pdf

Source

Polish Journal of Environmental Studies

Language

English

Source repository

Repositorio Institucional CIBNOR

Downloads

13

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