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.

scholarly journals Analysis of Drought in the Northern Region of Bangladesh Using Standardized Precipitation Index (SPI)

2019 ◽  
Vol 11 (1-2) ◽  
pp. 199-216
Author(s):  
R Afrin ◽  
F Hossain ◽  
SA Mamun
Keyword(s):  
Standardized Precipitation Index ◽  
Extended Period ◽  
Northern Region ◽  
Precipitation Index ◽  
Rainfall Data ◽  
Extreme Drought ◽  
Severe Drought ◽  
Drought Analysis ◽  
Dry Conditions ◽  
The Standardized Precipitation Index

Drought is an extended period when a region notes a deficiency in its water supply. The Standardized Precipitation Index (SPI) method was used in this study to analyze drought. Northern region of Bangladesh was the area of study. Monthly rainfall data of northern region of Bangladesh was obtained from the Meteorological Department of Bangladesh. Obtained rainfall data was from 1991 to 2011 and values from 2012 to 2026 were generated using Markov model. Then SPI values from 1991 to 2026 were calculated by using SPI formula for analyzing drought. Analysis with SPI method showed that droughts in northern region of Bangladesh varied from moderately dry to severely dry conditions and it may vary from moderately dry to severely dry conditions normally in future but in some cases extreme drought may also take place. From the study, it is observed that the northern region of Bangladesh has already experienced severe drought in 1991, 1992, 1994, 1995, 1997, 1998, 2000, 2003, 2005, 2007, 2009 and 2010. The region may experience severe drought in 2012, 2015, 2016, 2018, 2019, 2021, 2022, 2023, 2024, 2025 and 2026 and extreme drought in 2012, 2014, 2016, 2023 and 2024. J. Environ. Sci. & Natural Resources, 11(1-2): 199-216 2018

Combining the standardized precipitation index and climatic water deficit in characterizing droughts: a case study in Romania

2008 ◽  
Vol 97 (3-4) ◽  
pp. 219-233 ◽  
Author(s):  
Cr. Paltineanu ◽  
I. F. Mihailescu ◽  
Zoia Prefac ◽  
Carmen Dragota ◽  
Felicia Vasenciuc ◽  
...  
Keyword(s):  
Water Deficit ◽  
Standardized Precipitation Index ◽  
Precipitation Index ◽  
Climatic Water Deficit ◽  
The Standardized Precipitation Index

scholarly journals An analysis of drought evolution characteristics based on standardized precipitation index: a case study in Southwest Guizhou Autonomous Prefecture, China

2021 ◽  
Vol 21 (3) ◽  
pp. 327-335
Author(s):  
XU YANG ◽  
XIAOHOU SHAO ◽  
XINYU MAO ◽  
XIUNENG LI ◽  
RONGQI LI
Keyword(s):  
Drought Resistance ◽  
Standardized Precipitation Index ◽  
Precipitation Index ◽  
Natural Ecosystems ◽  
Drought Duration ◽  
Agricultural Water Management ◽  
Evolution Characteristics ◽  
Drought Disaster ◽  
The Standardized Precipitation Index

Drought is a worldwide concerned issue which causes huge losses in agriculture, economic and damages in natural ecosystems. The precise assessment of drought evolution characteristics is essential for agricultural water management and drought resistance, while such work is rarely reported. Thus, eight meteorological stations located within the Southwest Guizhou Autonomous Prefecture (SGAP) were selected, and the Standardized Precipitation Index (SPI) was used to assess the drought evolution characteristics. The results revealed that the drought occurrences number in Pu'an station was the largest (23 droughts), and the average drought duration in Xingren station was the longest (48.75 months). Moreover, the drought characteristics of the eight stations have account for the largest proportion under normal conditions, was more than 60%, the frequency of drought disaster occurring in Xingren is the highest (30.05%), followed by Wangmo (23.73%). The results of this study will provide theoretical guidance for drought resistance and agricultural production in Southwest Guizhou Autonomous Prefecture of China.

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 UTILIZAÇÃO DO ÍNDICE DE PRECIPITAÇÃO PADRONIZADO PARA A REGIÃO NORTE DO ESTADO DO ESPÍRITO SANTO

Irriga ◽  
2015 ◽  
Vol 20 (3) ◽  
pp. 414-428 ◽  
Author(s):  
Eduardo Morgan Uliana ◽  
Edvaldo Fialho dos Reis ◽  
Adilson Pacheco de Souza ◽  
José Geraldo Ferreira da Silva ◽  
Alexandre Cândido Xavier
Keyword(s):  
Spatial Distribution ◽  
Water Resource Management ◽  
Standardized Precipitation Index ◽  
Practical Method ◽  
Northern Region ◽  
Precipitation Index ◽  
Mato Grosso ◽  
Espírito Santo ◽  
The Standardized Precipitation Index ◽  
Espirito Santo

UTILIZAÇÃO DO ÍNDICE DE PRECIPITAÇÃO PADRONIZADO PARA A REGIÃO NORTE DO ESTADO DO ESPÍRITO SANTO  EDUARDO MORGAN ULIANA1; EDVALDO FIALHO DOS REIS2; ADILSON PACHECO DE SOUZA1; JOSÉ GERALDO FERREIRA DA SILVA3 E ALEXANDRE CÂNDIDO XAVIER2  1 Professor, Instituto de Ciências Agrárias e Ambientais, Universidade Federal de Mato Grosso (UFMT), Sinop – MT, [email protected]; [email protected] Professor, Departamento de Engenharia Rural, Centro de Ciências Agrárias, Universidade Federal do Espírito Santo (UFES), Alegre – ES, [email protected]; [email protected] Pesquisador, Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural (Incaper), Vitória – ES, [email protected]  1        RESUMO A seca é um fenômeno meteorológico complexo, com influência local ou regional e estudá-la é de grande importância para o planejamento e gestão dos recursos hídricos. Meteorologistas e hidrólogos propuseram índices para caracterizar, detectar e monitorar as secas meteorológicas. Dentre estes índices destaca-se o índice de precipitação padronizado (SPI). O objetivo deste trabalho foi aplicar e avaliar o SPI para caracterização do déficit e do excesso de precipitação na escala mensal e trimestral para a região norte do Estado do Espírito Santo. O SPI foi calculado utilizando a distribuição gama incompleta e foram estimados os limites de precipitação que correspondem a cada categoria do índice. Foi estudada a distribuição espacial do índice no período de outubro de 2009 a março de 2010. O SPI mostrou-se um método prático e eficaz para caracterização e monitoramento da seca e da umidade na região norte do estado. Com o estudo de sua distribuição espacial foi possível identificar localidades com situação crítica em relação à seca, o que possibilita o direcionamento de ações de mitigação e gestão dos recursos hídricos. Palavras-chave: Seca, umidade, índice de seca, SPI, precipitação.  ULIANA, E. M.; REIS, E. F. dos; SOUZA, A. P. de; SILVA, J. G. F. da; XAVIER, A. C.USING THE STANDARDIZED PRECIPITATION INDEX FOR THE NORTHERN  ESPÍRITO SANTO STATE  2        ABSTRACT Drought is a complex meteorological phenomenon   with local and regional influence. Studying it is of utmost importance for planning and management of water resources. Meteorologists and hydrologists proposed indices to characterize,  detect and monitor  meteorological droughts.  Among these indices, the standardized precipitation index (SPI) stands out. The objective of this study was to use and evaluate   the SPI to characterize  deficit and excess of precipitation in monthly and quarterly scales for the northern  Espírito Santo state. The SPI was calculated using the incomplete gamma distribution. Limits of precipitation  corresponding  to each category of the index were estimated. Spatial distribution of the index was studied from October 2009 to March 2010. The SPI proved to be an effective and practical method for characterization and monitoring of drought and humidity in the northern region of the state. Based on the study of its spatial distribution, identification of critical   sites concerning   droughts were identified, which enables targeting  mitigation  actions   and water resource management.   Keywords: drought, humidity, drought index, SPI, precipitation.

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