Kajian Indeks Kekeringan di Provinsi Lampung Tahun 2023 dengan Metode Neraca Air Thornthwaite-Mather

Muhammad Hakiem Sedo Putra

doi:10.28932/jts.v22i2.10328

Authors

Muhammad Hakiem Sedo Putra Program Studi Rekayasa Tata Kelola Air Terpadu, Institut Teknologi Sumatera, Lampung, 35365

DOI:

https://doi.org/10.28932/jts.v22i2.10328

Keywords:

Drought, Drought Index, Lampung Province, Thornthwaite-Mather Method

Abstract

Drought is one of the primary threats to water resource management, especially in tropical regions such as Lampung Province. This study aims to analyze the drought index in Lampung using the Thornthwaite-Mather method. The method evaluates water deficit by considering rainfall, potential evapotranspiration, and soil water capacity in the region. A 10-year dataset of climatic variables, including temperature, rainfall, and soil moisture, serves as the basis for the analysis. The results reveal significant variations in drought levels across Lampung, influenced by the spatial distribution of rainfall and land use. Central and eastern Lampung exhibit higher drought severity compared to the western and southern regions, particularly during the dry season. The drought index indicates that some areas have reached extreme drought levels, adversely affecting agricultural productivity and water availability for domestic use. This study provides essential insights into drought risk in Lampung, serving as a foundation for policymaking in water resource management and disaster mitigation. Recommendations include developing water storage infrastructure, enhancing community adaptation capacity, and optimizing the use of the Thornthwaite-Mather method in regional planning. These findings are expected to support sustainable water resource management in Lampung Province.

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