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Journal : Civil Engineering Journal

Meteorological Drought and its Relationship with Southern Oscillation Index (SOI) Harisuseno, Donny
Civil Engineering Journal Vol 6, No 10 (2020): October
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/cej-2020-03091588

Abstract

Drought monitoring, including its severity, spatial, and duration is essential to enhance resilience towards drought, particularly for overcoming drought risk management and mitigation plan. The present study has an objective to examine the suitability of the Standardized Precipitation Index (SPI) and Percent of Normal Index (PN) on assessing drought event by analyzing their relationship with the Southern Oscillation Index (SOI). The monthly rainfall data over twenty years of the observation period were used as a basis for data input in the drought index calculation. The statistical association analyses, included the Pearson Correlation (r), Kendal tau (Ï„), and Spearman rho (rs) used to assess the relationship between the monthly drought indexes and SOI. The present study confirmed that the SPI showed a more consistent and regular pattern relationship with SOI basis which was indicated by a moderately high determination coefficient (R2) of 0.74 and the magnitude of r, Ï„, and rs that were of 0.861, 0.736, and 0.896, respectively. Accordingly, the SPI showed better compatibility than the PN for estimating drought characteristics. The study also revealed that the SOI data could be used as a variable to determine the reliability of drought index results.
Co-Authors A Tefa, Marcorio Abdillah, Rusdan Aditama, Dimas Hafiz Aji, Yahya Muchaimin Almira, Aufa Hanan Anggara WWS anggun sugiarti, anggun Aprilansi, Ledib Aprilia, Anindi Atthahirah, Mutiara Azhar, Rifqi Fajar Beselly Putra, Sebrian Mirdeklis Cipta, Dara Marreta Deni Indarwati Dian Chandrasasi Dian Sisinggih Dwi Priyantoro Dwirani, Yosie Eka Wulandari Srihadi Putri, Eka Wulandari Srihadi Emma Yuliani Endang Purwati RN Erfarras, Nadia Nahda Ery Suhartanto Estefanus Wolok Evi Nur Cahya Firdaus, Novinda Faizah Fitriah, Faizah Friyana, Acha Octa Gilang Y. Juantari Guntoro, Dani Eko Guntoro, Dani Eko hari siswoyo Harjono, Marie Augustin Alvidian Pangestuti Ais Hartina Sahabuddin Hastina, Hastina Herdita, Chintya Ayu Permata Herdita, Chintya Ayu Permata Ima Sholikhati Jadfan Sidqi Fidari Lalu Sigar Canggih Ranesa, Lalu Sigar Canggih Lily Montarcih Limantara M. Amar Sajali M. Nurul Huda Maharani, Yasinta Surya Mahyaya M. Rahman Moh. Sholichin Mohammad Bisri Mohammad Rahdiansyah Batubara, Mohammad Rahdiansyah Mohammad Taufiq Nastiti, Nadia Sari Nomleni, Aprianto Nuariman, Panji Anom Nurcahyaningtyas, Devi Partarini, Ni Made Candra Pribadi, Laurentius Prasetya Puspasari, Ria Puteriana, Shintya Agustien Putra, Farhan Akbar Darma Putranto, Yoyok Dwi Rahma, Novi Fadhilah Rahmah Dara Lufira Rakhmawati, Dinia Dwi Rifnawati, Vina Rini Wahyu Sayekti Rini, Syafadilla Enggar Rispiningtati Rispiningtati Riyanto Haribowo Rizal Arifuddin K. Rubiantoro, Prasetyo Sajali, M. Amar Sandi, Yohan Alfanii Sapto Dwi Hari Oktavianto Sari, Devi Puspita Sariyanti, Ni Komang Yuli Setiyowati, Yunita Ayu Sidqi Fidari, Jadfan Sitepu, Haniyah Sri Wahyuni Suhardjono Suhardjono Tri Budi Prayogo, Tri Budi Tri Juwono, Pitojo Tri Kurniawati, Tri Ussy Andawayanti Very Dermawan Visi Murpratiwi, Aisyah Welkis, Davianto Frangky Widandi Soetopo WIJAYANTI, SILVIA DEWI Wijayanto, Andy Wiyono Wit Saputra, Anggara Yan P. S. Tampani, Yan P. S. Yanuar Hendra Pramana, Yanuar Hendra Yunus Fallo