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Comparison of Suitable Drought Indices for Over West Nusa Tenggara
The drought has had a significant impact on West Nusa Tenggara. Drought experienced in some areas almost every year, causing crop failure and even causing famine in 1954 and 1966. This study aims to find the best method for obtaining the meteorological drought index because it is essential to understand the drought characteristics in the study area in guiding policymakers in early anticipation of this region’s drought hazard. This study compares two drought index methods, SPI and PDSI, and tests their proximity to drought data in these locations. Evaluation is carried out to determine the best approach to choose for conducting a drought assessment. The best-fitted method was determined statistically by counting the number of dry months produced by the model and comparing it with the drought experienced over West Nusa Tenggara. The results obtained are the SPI method has an accuracy rate of 58% and a correlation coefficient r about 0.06. Meanwhile, the PDSI method has a better accuracy rate of 75% and a correlation coefficient r about 0.51. The PDSI method is also the most superior in accurately predicting the arrival of a dry month compared to SPI. So, it can be concluded that the PDSI method is the better method for evaluating and detecting dry periods in West Nusa Tenggara.
Comparison of Suitable Drought Indices for Over West Nusa Tenggara
The drought has had a significant impact on West Nusa Tenggara. Drought experienced in some areas almost every year, causing crop failure and even causing famine in 1954 and 1966. This study aims to find the best method for obtaining the meteorological drought index because it is essential to understand the drought characteristics in the study area in guiding policymakers in early anticipation of this region’s drought hazard. This study compares two drought index methods, SPI and PDSI, and tests their proximity to drought data in these locations. Evaluation is carried out to determine the best approach to choose for conducting a drought assessment. The best-fitted method was determined statistically by counting the number of dry months produced by the model and comparing it with the drought experienced over West Nusa Tenggara. The results obtained are the SPI method has an accuracy rate of 58% and a correlation coefficient r about 0.06. Meanwhile, the PDSI method has a better accuracy rate of 75% and a correlation coefficient r about 0.51. The PDSI method is also the most superior in accurately predicting the arrival of a dry month compared to SPI. So, it can be concluded that the PDSI method is the better method for evaluating and detecting dry periods in West Nusa Tenggara.
Comparison of Suitable Drought Indices for Over West Nusa Tenggara
Lecture Notes in Civil Engineering
Kristiawan, Stefanus Adi (editor) / Gan, Buntara S. (editor) / Shahin, Mohamed (editor) / Sharma, Akanshu (editor) / Saidah, Humairo (author) / Sulistiyono, Heri (author) / Negara, I Dewa Gede Jaya (author)
International Conference on Rehabilitation and Maintenance in Civil Engineering ; 2021 ; Surakarta, Indonesia
2022-07-19
14 pages
Article/Chapter (Book)
Electronic Resource
English
SEBOTOK WHARF CONSTRUCTION RISK MANAGEMENT ANALYSIS SUMBAWA WEST NUSA TENGGARA
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