Machine Learning Framework for Evaluating the Cooling Performance of Wetlands in a Tropical Coastal City
Bibliographic Data
| ID | 22033968 |
|---|---|
| Authors | Nhat-Duc Hoang (0000-0001-9450-4637, Duy Tan University, corresponding author) |
| Year | 2026 |
| Volume | 15 |
| Issue | 3 |
| Pages | 129 |
| Publication date | 2026-03-15 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | ISPRS International Journal of Geo-Information (JOURNAL) |
| Journal identifiers | ISSN: 2220-9964 • E-ISSN: 2220-9964 |
| Publisher | MDPI AG (PUBLISHER • IT) |
| DOI | 10.3390/ijgi15030129 |
| OpenAlex | W7136779366 |
| Language | EN |
| References cited | 77 |
This study investigates the cooling effects of coastal wetland systems in Hue City, Vietnam. The analysis focuses on their riparian buffer zones, defined here as areas within 600 m of the wetland boundary. Landsat 8 imagery was used to derive land surface temperature (LST) from 1 March to 31 July 2025—a recent period marked by multiple heatwaves across the region. To assess the cooling performance of wetlands, data samples were collected within the buffer zones. A Light Gradient Boosting Machine was trained to characterize the relationship between cooling intensity and a set of influencing factors (e.g., distance to wetland boundary, land use/land cover, built-up density, and green space density). The model explains approximately 91% of the variation in cooling intensity around wetlands. Notably, a machine-learning-based simulation framework was proposed to attain insights into the cooling characteristics of the riparian zone. The result indicates a mean cooling effect of about 2 °C and an effective cooling distance of 210 m from the wetland boundary. Partial dependence analysis further reveals that increasing built-up density substantially weakens cooling performance and implies that, for the conditions observed in Hue City, maintaining built-up density near wetlands below roughly 45% is favorable for sustaining effective cooling of the blue space, as indicated by the model-based partial dependence analysis. Overall, the research findings provide a data-driven basis for informing urban planning and wetland management in Hue City to mitigate heat stress
Gradient boosting · Hue · Riparian buffer · Riparian zone · Urban heat island · Wetland · Land Use and Ecosystem Services · Plant Water Relations and Carbon Dynamics · Urban Heat Island Mitigation
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| Citation velocity | historical |
|---|---|
| Highly cited | No |