Upaka Rathnayake
Biographic Data
| ID | 5095076 |
|---|---|
| NAME | Upaka Rathnayake |
| GIVEN NAMES | Upaka |
| FAMILY NAME | Rathnayake |
| SIGNATURE | RATHNAYAKE U |
| AFFILIATIONS | Atlantic University |
| ORCID | 0000-0002-7341-9078 |
| VERIFIED | Yes |
| TOTAL WORKS | 5 |
| TOTAL CITATIONS | 0 |
| WORKS AS AUTHOR | 5 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2023 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 0 |
Spatiotemporal analysis and deep-learning based forecasting of land surface temperature in the Unesco world heritage sinharaja rainforest
Developed a deep learning framework using Convolutional Long Short-Term Memory (ConvLSTM) to forecast temperature dynamics in the Sinharaja Rainforest, a critical UNESCO World Heritage Site and biodiversity hotspot. • Integrated two decades (2000–2021) of high-resolution satellite-derived Land Surface Temperature (LST) data to capture complex, nonlinear patterns with high predictive accuracy (RMSE = 1.11°C). • Identified a subtle but persistent l…
Temporal change of tree biomass, productivity, and carbon pool in the dominant forests of Western Himalaya
Soil respiration (Rs) is the largest source of carbon dioxide emissions from terrestrial ecosystems. While numerous studies have examined its environmental controls, significant knowledge gaps remain regarding the complex interactions between biotic and abiotic factors regulating Rs. These uncertainties hinder the accuracy of model predictions, limiting our ability to assess ecosystem carbon dynamics under changing environmental conditions. This …
Modeling soil respiration
Soil respiration rates differ significantly between Sal and Chir-Pine forests across seasons. • Soil moisture is the primary driver of Rs in Sal, while rainfall dominates in Chir-Pine. • The findings improve carbon pool projections, which are important for climate change and forest management. Soil respiration (Rs) is the largest source of carbon dioxide emissions from terrestrial ecosystems. While numerous studies have examined its environmental…
Comparative analysis of the cumulative yield from the adjacent catchment along the ancient Minipe Left Bank Canal, Sri Lanka
Ancient Minipe Anicut, Sri Lanka is world-famous for its engineering excellence. Due to its importance, conserving the ancient anicut, another anicut was constructed downstream in the 20th century. Nevertheless, the water diverted from the ancient anicut to the Minipe Left Bank (LB) Canal was kept as it was due to inherited agricultural importance. This research focuses on studying the contributions made by the adjacent catchment along the Minipe…
Situation report (Sitrep) visualization for effective management of disaster incidents in Sri Lanka
During and after any disaster, a situation report (SITREP) is prepared, based on the Daily Incident Updates (DIU), as an initial decision support information base. It is observed that the decision support system and best practices are not optimized through the available formal reporting on disaster incidents. The rapidly evolving situation, misunderstood terms, inaccurate data and delivery delays of DIU are challenges to the daily SITREP. Multipl…
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Comparative analysis of the cumulative yield from the adjacent catchment along the ancient Minipe Left Bank Canal, Sri Lanka
Ancient Minipe Anicut, Sri Lanka is world-famous for its engineering excellence. Due to its importance, conserving the ancient anicut, another anicut was constructed downstream in the 20th century. Nevertheless, the water diverted from the ancient anicut to the Minipe Left Bank (LB) Canal was kept as it was due to inherited agricultural importance. This research focuses on studying the contributions made by the adjacent catchment along the Minipe…
Situation report (Sitrep) visualization for effective management of disaster incidents in Sri Lanka
During and after any disaster, a situation report (SITREP) is prepared, based on the Daily Incident Updates (DIU), as an initial decision support information base. It is observed that the decision support system and best practices are not optimized through the available formal reporting on disaster incidents. The rapidly evolving situation, misunderstood terms, inaccurate data and delivery delays of DIU are challenges to the daily SITREP. Multipl…
Temporal change of tree biomass, productivity, and carbon pool in the dominant forests of Western Himalaya
Soil respiration (Rs) is the largest source of carbon dioxide emissions from terrestrial ecosystems. While numerous studies have examined its environmental controls, significant knowledge gaps remain regarding the complex interactions between biotic and abiotic factors regulating Rs. These uncertainties hinder the accuracy of model predictions, limiting our ability to assess ecosystem carbon dynamics under changing environmental conditions. This …
Modeling soil respiration
Soil respiration rates differ significantly between Sal and Chir-Pine forests across seasons. • Soil moisture is the primary driver of Rs in Sal, while rainfall dominates in Chir-Pine. • The findings improve carbon pool projections, which are important for climate change and forest management. Soil respiration (Rs) is the largest source of carbon dioxide emissions from terrestrial ecosystems. While numerous studies have examined its environmental…
Spatiotemporal analysis and deep-learning based forecasting of land surface temperature in the Unesco world heritage sinharaja rainforest
Developed a deep learning framework using Convolutional Long Short-Term Memory (ConvLSTM) to forecast temperature dynamics in the Sinharaja Rainforest, a critical UNESCO World Heritage Site and biodiversity hotspot. • Integrated two decades (2000–2021) of high-resolution satellite-derived Land Surface Temperature (LST) data to capture complex, nonlinear patterns with high predictive accuracy (RMSE = 1.11°C). • Identified a subtle but persistent l…
Geography (4 works) · Biology (3 works) · Ecology (3 works) · Environmental Science (3 works) · Plant Water Relations and Carbon Dynamics (3 works) · Agroforestry (2 works) · Botany (2 works) · Forest ecology and management (2 works) · Forestry (2 works) · Respiration (2 works)