Analysis of precipitation time series and regional drought assessment based on the standardized precipitation index in the Oum Er-Rbia basin (Morocco)

2019 ◽  
Vol 12 (16) ◽  
Author(s):  
Saloua Zhim ◽  
Abdelkader Larabi ◽  
Hassane Brirhet
Keyword(s):  
Time Series ◽  
Standardized Precipitation Index ◽  
Precipitation Index ◽  
Precipitation Time Series ◽  
Drought Assessment ◽  
Regional Drought ◽  
The Standardized Precipitation Index

Drought assessment using the standardized precipitation index (SPI) in GIS environment in Greece

2022 ◽  
pp. 619-633
Author(s):  
Demetrios E. Tsesmelis ◽  
Constantina G. Vasilakou ◽  
Kleomenis Kalogeropoulos ◽  
Nikolaos Stathopoulos ◽  
Stavros G. Alexandris ◽  
...  
Keyword(s):  
Standardized Precipitation Index ◽  
Precipitation Index ◽  
Drought Assessment ◽  
Gis Environment ◽  
The Standardized Precipitation Index

scholarly journals Daily standardized precipitation index with multiple time scale for monitoring water deficit across the mainland China from 1961 to 2018

2021 ◽  
Author(s):  
Qianfeng Wang ◽  
Rongrong Zhang ◽  
Yanping Qu ◽  
Jingyu Zeng ◽  
Xiaoping Wu ◽  
...  
Keyword(s):  
Standardized Precipitation Index ◽  
Social Economy ◽  
Mainland China ◽  
Precipitation Index ◽  
Agricultural Drought ◽  
Multiple Time ◽  
Data Set ◽  
Drought Assessment ◽  
Multi Scale ◽  
The Standardized Precipitation Index

Abstract. With the increasing shortage of water resources, drought has become one of the hot issues in the world. The standardized precipitation index (SPI) is one of the widely used drought assessment indicators because of its simple and effective calculation method, but it can only assess drought events more than one month. We developed a new multi-scale daily SPI dataset to make up for the shortcomings of the commonly used SPI and meet the needs of drought types at different time scales. Taking three typical stations in Henan, Yunnan and Fujian Province as examples, the drought events identified by SPI with different scales were consistent with the historical drought events recorded. Meanwhile, we took the 3-month scale SPI of soil and agricultural drought as an example, and analyzed the characteristics of drought events in 484 stations in Chinese mainland. The results showed that most of the drought events the mainland China did not increase significantly, and some parts of the northwestern Xinjiang and Northeast China showed signs of gradual relief. In short, our daily SPI data set is freely available to the public on the website https://doi.org/10.6084/m9.figshare.14135144, and can effectively capture drought events of different scales. It can also meet the needs of drought research in different fields such as meteorology, hydrology, agriculture, social economy, etc.

scholarly journals Negative regional Standardized Precipitation Index trends prevail in the Mexico’s state of Zacatecas.

2019 ◽  
Vol 37 (4) ◽  
pp. 487
Author(s):  
Rafael Magallanes-Quintanar ◽  
Fidel Blanco-Macías ◽  
Erick Carlos Galván-Tejada ◽  
Jorge Isaac Galván-Tejada ◽  
Miguel Márquez-Madrid ◽  
...  
Keyword(s):  
Time Series ◽  
Standardized Precipitation Index ◽  
Precipitation Index ◽  
Trend Test ◽  
Spatial And Temporal Variability ◽  
Monthly Precipitation ◽  
Precipitation Time Series ◽  
Groundwater Levels ◽  
Sen’S Slope ◽  
Precipitation Regimes

As the earth atmosphere warms, it is unclear how the precipitation will change or how these changes will impact regional rainfall. For the study of spatial and temporal variability of rainfall, several indexes have been developed. The Standardized Precipitation Index (SPI) that only involves recorded rainfall data has been used as a tool for climatic zone classif ication and a drought indicator. Then, the aims of the present study were: 1) to cluster monthly precipitation time series into groups that represent regions under the basis of similar precipitation regimes, 2) to compute regional SPI’s using all the members (time series) of each cluster, and 3) to estimate trends of the regional SPI’s. The cluster analysis approach was used to identify four groups of monthly precipitation time series that represent regions of similar precipitation regimes. Afterwards, regional SPI’s were estimated using all the members of each cluster. Finally, four regional SPI trends were estimated by means of the Mann-Kendall trend test and Sen’s slope estimator. Estimated decreasing SPI trends imply prevail of negative values at the end of the study period (1964-2014), which indicate less than median precipitation in the entire Zacatecas state territory. For instance, SPI at 12-month time scale Sen’s slope values were -0.17 and -0.18 for the wet and dry seasons, respectively in the Semi-desert region. Thus, the evidenced trends may be having influence on the availability of surface water, groundwater levels and aquifers recharge in the near future. So, it is imperative to adjust inhabitants’ activities according to design planned climate change adaptation strategies.

scholarly journals Identificação e Análise de Secas Severas e Extremas no Município de Taperoá-PB (Identification and Analysis of Severe and Extreme Dry in the Municipality of Taperoá-PB)

2015 ◽  
Vol 7 (5) ◽  
pp. 818 ◽  
Author(s):  
André Aires de Farias ◽  
José Thyago Souza ◽  
Francisco Asis Sousa
Keyword(s):  
Standardized Precipitation Index ◽  
Precipitation Index ◽  
Drought Indices ◽  
Module Identification ◽  
Rural Environments ◽  
Moderate Drought ◽  
Regional Drought ◽  
The Standardized Precipitation Index

A seca é um fenômeno que ocorre naturalmente quando a precipitação fica abaixo dos níveis normais registrados, isso provoca um sério desequilíbrio hídrico que afeta negativamente o meio urbano e rural. Para analisar uma seca, índices podem ser utilizados. Diante disso, objetivou-se utilizar o Índice Padronizado de Precipitação para identificar e analisar as secas severas e extremas no município de Taperoá-PB. Foram utilizados dados de totais mensais precipitados para o período de 1963-2013 do município de Taperoá-PB. A avaliação do grau de severidade dos períodos secos foi realizada através do Índice Padronizado de Precipitação (SPI), nas escalas temporais de 03, 06, 09, 12 e 24 meses. Devido os maiores impactos serem em função de secas severas e extremas, optou-se por analisar apenas os SPIs que representem essas categorias. Para calcular o SPI foi utilizado o Módulo de identificação Regional de Seca (REDIM). Os SPIs detectaram, segundo a intensidade média, secas severas e extremas no município, embora não esteja no artigo, à categoria de seca moderada aconteceu com maior frequência. Verificou-se que o maior número de secas severas e extremas aconteceu durante as décadas de 1980 e 1990, com a maioria delas acontecendo na de 1990.   A B S T R A C T Drought is a phenomenon that occurs naturally when rainfall is below normal recorded levels, it causes a serious hydrological imbalances that adversely affect the urban and rural environments. To analyze a drought indices can be used. Therefore, we aimed to use the Standardized Precipitation Index to identify and analyze the severe and extreme in the municipality of Taperoá PB-dried. Data from precipitates monthly totals for the period 1963-2013 the municipality of Taperoá-PB. The assessment of the severity of dry periods was performed using the Standardized Precipitation Index (SPI), the timescales of 03, 06, 09, 12 and 24 months. Because the greatest impacts are due to severe and extreme droughts, we chose to analyze only the SPIs that represent these categories. To calculate the SPI Module identification Regional Drought (REDIM) was used. SPIs detected, averaged, severe droughts and extreme intensity in the county, although not in the article, the category of moderate drought happened more often. It was found that the most severe and extreme droughts occurred during the 1980s and 1990s, with most of them happening in 1990.  

scholarly journals Drought assessment in the northern region of Colombia using the Standardized Precipitation Index (SPI): a case study in the department of La Guajira

2021 ◽  
Author(s):  
Luis Díaz Chávez ◽  
Ana Patricia Espinosa Romero ◽  
Jairo Rosado Vega
Keyword(s):  
Recurrent Events ◽  
Temporal Trends ◽  
Standardized Precipitation Index ◽  
Northern Region ◽  
Precipitation Index ◽  
Drought Assessment ◽  
Operational Characteristics ◽  
Significance Levels ◽  
The Standardized Precipitation Index

Abstract The objective of this study was to assess droughts in the department of La Guajira, Columbia, on the basis of their operational characteristics. Droughts were assessed using the Standardized Precipitation Index (SPI) at three- and six-month aggregation periods (SPI-3 and SPI-6), and their operational characteristics were analyzed by the run theory and via analysis of temporal trends using the modified Mann-Kendall (MMK) test. The results indicated that droughts were most frequent in La Guajira between 1995 and 2004. The occurrence of droughts was most accurately identified by SPI-6. It was observed that the central, southern, and western areas of the department had droughts of greater duration, severity, and intensity. The MMK test shows negative (decreasing) temporal trends at significance levels α between 0.1 and 0.01 in 6.12% of the meteorological stations located in the central and southern areas of La Guajira. These results support the conclusion that droughts are recurrent events in the department of La Guajira as a result of the arid and semi-arid climate prevalent in significant portions of the department’s land area. This elucidates the vulnerability of agriculture and livestock in such areas that are prone to droughts of greater duration, severity, and intensity.

Drought assessment and monitoring in Jordan using the standardized precipitation index

2019 ◽  
Vol 12 (14) ◽  
Author(s):  
Husam A. Abu Hajar ◽  
Yasmin Z. Murad ◽  
Khaldoun M. Shatanawi ◽  
Bashar M. Al-Smadi ◽  
Yousef A. Abu Hajar
Keyword(s):  
Standardized Precipitation Index ◽  
Precipitation Index ◽  
Drought Assessment ◽  
Assessment And Monitoring ◽  
The Standardized Precipitation Index
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