Saidah Humairo, Humairo Saidah and Sulistiyono Heri, Heri Sulistiyono and I Dewa Gede Jaya Negara, I Dewa Gede Jaya Negara Comparison of Suitable Drought Indices for Over West Nusa Tenggara. Sebelas Maret University.
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Abstract
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 was conducted to find the best method for obtaining the meteorological drought index. It is essential to understand the characteristics of drought in the study area in guiding policy- makers in early anticipation of this region's drought hazard. This study com- pares 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 pro- duced 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.
| Item Type: | Other |
|---|---|
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Fakultas Teknik |
| Depositing User: | Ph.D. Heri Sulistiyono |
| Date Deposited: | 12 Jun 2023 03:57 |
| Last Modified: | 12 Jun 2023 03:57 |
| URI: | http://eprints.unram.ac.id/id/eprint/39657 |
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