Small Hydropower Suitability of Vietnam Using Multi-Criteria Decision Making Approach

Paper

Ghosh, Surajit, Kour, Sneha, Rajakaruna, Punsisi, Holmatov, Bunyod, Banerjee, Bikram and Chon, Le Trung. 2025. "Small Hydropower Suitability of Vietnam Using Multi-Criteria Decision Making Approach." IGARSS 2025 - 2025 IEEE International Geoscience and Remote Sensing Symposium. Brisbane, Australia 03 - 08 Aug 2025 Australia. IEEE (Institute of Electrical and Electronics Engineers). https://doi.org/10.1109/IGARSS55030.2025.11314015
Paper/Presentation Title

Small Hydropower Suitability of Vietnam Using Multi-Criteria Decision Making Approach

Presentation TypePaper
AuthorsGhosh, Surajit, Kour, Sneha, Rajakaruna, Punsisi, Holmatov, Bunyod, Banerjee, Bikram and Chon, Le Trung
Journal or Proceedings TitleProceedings of IGARSS 2025 - 2025 IEEE International Geoscience and Remote Sensing Symposium
Journal Citationpp. 2696-2700
Number of Pages5
Year2025
PublisherIEEE (Institute of Electrical and Electronics Engineers)
Place of PublicationAustralia
ISBN9798331508104
9798331508111
Digital Object Identifier (DOI)https://doi.org/10.1109/IGARSS55030.2025.11314015
Web Address (URL) of Paperhttps://ieeexplore.ieee.org/document/11314015
Web Address (URL) of Conference Proceedingshttps://ieeexplore.ieee.org/xpl/conhome/11242230/proceeding
Conference/EventIGARSS 2025 - 2025 IEEE International Geoscience and Remote Sensing Symposium
Event Details
IGARSS 2025 - 2025 IEEE International Geoscience and Remote Sensing Symposium
Parent
IEEE International Geoscience and Remote Sensing Symposium
Delivery
In person
Event Date
03 to end of 08 Aug 2025
Event Location
Brisbane, Australia
Event Venue
Brisbane Convention & Exhibition Centre
Event Web Address (URL)
Abstract

Recognizing the environmental challenges posed by large hydropower plants, there is increasing interest in deploying small hydropower plants (SHP) as a viable and low-impact alternative for generating electricity. The current study identifies areas most suitable for SHP development in Vietnam using a multi-criteria decision-making approach based on Earth Observation (EO) data. Utilizing Sentinel-1 imagery, SRTM Digital Elevation Data, and other geospatial datasets, the study employs a GIS-based Analytical Hierarchy Process (AHP) to create a detailed SHP suitability map. Key criteria, including elevation, rainfall, and drainage density, are analyzed to pinpoint optimal SHP locations across diverse Vietnamese topographies. The study results reveal that hydropower site suitability varies across the country, influenced by factors, such as slope, flow accumulation, and land use. Initial findings showed strong predictive reliability (24 % in highly suitable, 39 % in moderately suitable areas and 37 % in least suitable) with an AUC score of 82.45 %). Around 60 % of existing hydropower plants are located within the highly suitable areas found in this study. This study emphasizes the advantages of AHP in objectively assessing multi-layered geographic data, thereby streamlining SHP site selection while aligning with Vietnam's carbon reduction targets. However, the initial results need to be verified with rigorous field observations, which were not part of the current study.

KeywordsHydropower; Remote Sensing; Greenhouse gas; Vietnam
Contains Sensitive ContentDoes not contain sensitive content
ANZSRC Field of Research 2020401304. Photogrammetry and remote sensing
460106. Spatial data and applications
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Byline AffiliationsInternational Water Management Institute, Sri Lanka
School of Science, Engineering & Digital Technologies- Surveying & Built Env
Hochiminh City University, Vietnam
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