Cuantificación de sequías meteorológicas mensuales: cotejo de cuatro índices en tres localidades de San Luis Potosí, México

Aranda, Daniel Francisco Campos

doi:10.24850/j-tyca-2017-03-11

Cited by 4 publications

(2 citation statements)

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“…Subsequently, the new values are transformed to a normal PDF with a mean of zero and a variance of one, which describes the drought behavior at the site [30,31]. The SPI has been used in numerous studies to evaluate the phenomenon's behavior in various parts of the world [5,30,[32][33][34][35][36]. Thus, these studies report that this is a powerful tool capable of capturing drought behavior, duration, and intensity.…”

Section: Estimation Of Droughtmentioning

confidence: 99%

Analysis of the Evolution of Drought through SPI and Its Relationship with the Agricultural Sector in the Central Zone of the State of Veracruz, Mexico

et al. 2021

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Agriculture and raising livestock are human activities highly affected by drought. In Mexico, the Veracruz territory is seriously affected by this phenomenon. Our study had two objectives: (1) to analyze the drought evolution through the Standardized Precipitation Index (SPI) and the maximum temperature in the central zone of the state of Veracruz for the period 1980–2018; and (2) to describe the relationship between the yield of corn grain and cattle, and the SPI, in the study area. The methodology consisted of calculating the SPI to estimate the drought conditions in the mentioned area. Subsequently, we determined the relationship of these conditions with the maximum temperature increase and the presence of El Niño/La Niña events. The results showed that the drought has intensified during 1980–2018, having a presence in almost 50% of the area. Additionally, the maximum temperature increased by approximately 6 °C. As a result, the cultivation of corn grain under rain conditions showed reductions in 48% of the analyzed municipalities. Concerning livestock variables, lower reductions were reported (42–32%) for the same period. Therefore, we can conclude that the drought has intensified in recent years due to an increase in the maximum temperature and El Niño/La Niña events, and these factors have had a higher impact on the agricultural sector.

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Section: Estimation Of Droughtmentioning

confidence: 99%

Analysis of the Evolution of Drought through SPI and Its Relationship with the Agricultural Sector in the Central Zone of the State of Veracruz, Mexico

et al. 2021

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“…Los daños se extienden a la sociedad, el medio ambiente y economía, con una limitada capacidad para enfrentar oportunamente este fenómeno, el cual consigue la categoría de desastre ambiental , Sardiñas et al 2019. Por lo que el riesgo natural es de los más complejos de analizar, de evolución lenta y ha sido objeto de estudio en muchas regiones del mundo (Penalba y Rivera 2015, Peña-Gallardo et al 2016, Campos-Aranda 2017, Olivares y Zingaretti 2018.…”

Section: Introductionunclassified

Comportamiento de índices de sequía meteorológica a través de las dimensiones espaciales y temporales

Núñez-Magaña¹,

Ruíz-Acosta

Cruz

et al. 2022

Ecosist. Recur. Agropec.

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El fenómeno de sequía meteorológica ha sido objeto de estudio por los desastres ambientales que ocasiona, la estimación de índices de sequía meteorológica (IDs) permite cuantificar los daños y ayuda a generar planes de mitigación. El objetivo de este estudio fue determinar la intensividad o extensividad de los IDs de mayor aplicación para mejorar su evaluación. Se realizó una revisión sistemática de los trabajos publicados en los últimos 40 años, que incluyó un análisis del comportamiento de las dimensiones espaciales, escalas temporales y clima del sistema con los resultados arrojados por los IDs. El análisis reveló que los IDs son extensivos. Esto ocasiona que las evaluaciones de los IDs tengan influencia espacial, puntos de observación, longitud de las series de datos, clima y la escala temporal. Además, se señala la viabilidad de los IDs para su aplicación y alcanzar una mayor exactitud en las evaluaciones.

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Temporal and spatial distribution characteristics of drought and flood considering the influence of underlying surface in Hainan Island, tropical areas of China

Zou

et al. 2022

Theor Appl Climatol

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Most studies of temporal and spatial distribution characteristics for droughts and oods analysis were conducted only from the perspective of a single factor (precipitation), while ignoring the impact of the characteristics of the underlying surface on the formation of droughts and oods. Using the daily precipitation data of 88 meteorological stations in Hainan province from 1970 to 2019, the 30m resolution DEM data and land use dataset, etc, the precipitation Z index is used to evaluate the drought and ood levels in Hainan. The analysis results were revised by underlying surface data to evaluate the spatiotemporal characteristics of the drought and ood area in Hainan. The drought-prone areas and ood prone areas in Hainan Island were divided, and on this basis, the set pair analysis method was used to identify the regions with alternating drought and ood areas in Hainan. The results show that the overall arid area shows an obvious downward trend, while the ood area presents an increasing trend.The drought-prone areas throughout the year are more concentrated in the northeast of Hainan Island, while ood prone areas are mainly distributed in the eastern coastal areas. The regions where drought and ood occur alternately are small but concentrated. The drought and ood prone areas and alternate drought and ood areas before and after the revision by the underlying surface were compared. It can be seen that the overall trend is relatively similar and obvious before and after the revision. The result of drought areas before revision is 7.97 times larger than that after revision. The ood prone areas before revision are 2.91 times larger than that after revision. Finally, combining climate and underlying surface factors, suggestions for drought and ood prevention are put forward.

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Cuantificación de sequías meteorológicas mensuales: cotejo de cuatro índices en tres localidades de San Luis Potosí, México

Cited by 4 publications

References 0 publications

Analysis of the Evolution of Drought through SPI and Its Relationship with the Agricultural Sector in the Central Zone of the State of Veracruz, Mexico

Analysis of the Evolution of Drought through SPI and Its Relationship with the Agricultural Sector in the Central Zone of the State of Veracruz, Mexico

Comportamiento de índices de sequía meteorológica a través de las dimensiones espaciales y temporales

Temporal and spatial distribution characteristics of drought and flood considering the influence of underlying surface in Hainan Island, tropical areas of China

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