Geographic Information Systems Application to Drought Distribution Identification with Standardized Precipitation Index (SPI) Method in Trenggalek Regency
Open Access
- 8 August 2021
- journal article
- Published by Universitas Nusantara PGRI Kediri in INTENSIF: Jurnal Ilmiah Penelitian dan Penerapan Teknologi Sistem Informasi
- Vol. 5 (2), 266-278
- https://doi.org/10.29407/intensif.v5i2.15645
Abstract
The widespread drought area in Trenggalek Regency in 2019 needs to be analyzed to reduce negative impacts and as a monitoring tool to anticipate future drought events. The Standardized Precipitation Index (SPI) is a drought analysis method by calculating the rainwater deficit at various time scales used to identify the distribution of drought in Trenggalek Regency. This study using rain data on 13 rain stations for the period 1990-2019 and agricultural production data for 2019. The calculation results show that the highest SPI value occurred in March at the highly wet level with a value of 2.11. The lowest SPI value occurred in May at the extremely dry level with a value of -2.31. The results are then mapped using ArcGIS with the Inverse Distance Weighted (IDW) method to identify the spatial distribution of drought.Keywords
This publication has 18 references indexed in Scilit:
- Occurrence Probabilities of Wet and Dry Periods in Southern Italy through the SPI Evaluated on Synthetic Monthly Precipitation SeriesWater, 2018
- The applicability of Standardized Precipitation Index: drought characterization for early warning system and weather index insurance in West AfricaNatural Hazards, 2017
- Regional Analysis of Prone Drought Areas under Future Climate Change Scenarios: Case Study Agropolitan of Malang DistrictIOP Conference Series: Earth and Environmental Science, 2017
- KRITERIA AWAL MUSIM TANAM: TINJAUAN PREDIKSI WAKTU TANAM PADI DI INDONESIAJurnal Penelitian dan Pengembangan Pertanian, 2016
- Multiscale evaluation of the Standardized Precipitation Index as a groundwater drought indicatorHydrology and Earth System Sciences, 2016
- Computation of Drought Index SPI with Alternative Distribution FunctionsWater Resources Management, 2012
- The Lincoln Declaration on Drought Indices: Universal Meteorological Drought Index RecommendedBulletin of the American Meteorological Society, 2011
- A Water Balance Derived Drought Index for Pinios River Basin, GreeceWater Resources Management, 2010
- Use of the standardized precipitation index (SPI) and a modified SPI for shaping the drought probabilities over TurkeyInternational Journal of Climatology, 2009
- A drought climatology for EuropeInternational Journal of Climatology, 2002