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
Subjects
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
Information Resource
Format
application/pdf
Source
Polish Journal of Environmental Studies
Language
English
Source repository
Repositorio Institucional CIBNOR
Downloads
13