Vol. 3 No. 1 (2025): Journal of Water Resources Management
Articles

Analysis on Evapotranspiration Changes in Sungai Perlis River Basin Effecting by the Climate Changes: Future Evapotranspiration in Sungai Perlis River Basin by Climate Changes Responses

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  • Nurul Nadrah Aqilah Tukimat,
  • Sazali Othman,
  • Muhammad Syukri Mohamed Rodzi,
  • Siti Nazahiyah Rahmat,
  • Foo Hoat Lim
Nurul Nadrah Aqilah Tukimat
TS DR

Published 10-07-2025

Keywords

  • CMIP6,
  • Hargreaves-Samani,
  • Evaporation Projection,
  • Perlis River Basin

How to Cite

Tukimat, N. N. A., Othman, S., Mohamed Rodzi, M. S., Rahmat, S. N., & Lim, F. H. (2025). Analysis on Evapotranspiration Changes in Sungai Perlis River Basin Effecting by the Climate Changes: Future Evapotranspiration in Sungai Perlis River Basin by Climate Changes Responses. Journal of Water Resources Management, 3(1). Retrieved from https://journal.water.gov.my/index.php/jowrm/article/view/119

Copyright (c) 2025 Journal of Water Resources Management

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Abstract

This study investigated future (2025–2100) changes in evapotranspiration (ET) in Perlis River basin, under a high emissions scenario, comparing the most recent state‐of‐the‐art climate models using Hargreaves-Samani (HS) method. Four global climate models (GCMs) of CMIP6 namely CMCC-CM2, IPSL-CM6A, MIROC6 and MRI-ESM2 were selected. The results revealed good results in the selected CMIP6 models in replicating historical temperature and evapotranspiration over the basin. The selected models projected a 1.1–2.5°C more rise in temperature by the end of the century. The future projection of evapotranspiration is projected to decrease towards the end of century. It is proved that the HS method considers ET has a positive correlation with the temperature, i.e., the higher the temperature the higher the ET. In conclusion, the HS method is suitable for estimating ET in the study area and projecting the changing pattern of ET under climate change scenarios.

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