RT journal article T1 Assessing the impact of Nile water level fluctuations on the structural stability of the Philae temples in Aswan, Egypt A1 Fahmy, Abdelrhman A1 Basell, Laura A1 Domínguez Bella, Salvador A1 Molina Piernas, Eduardo A2 Ciencias de la Tierra K1 Aswan K1 Decay K1 Nile river K1 Philae area K1 Sandstone K1 Stone weathering K1 Structural damage K1 UNESCO K1 Water fluctuations AB The ancient Egyptian temples at the Philae UNESCO World Heritage Site in Aswan face conservation challenges due to fluctuating water levels, which threaten their building material resistance. Following a summary review of the hydrological changes to the natural responses of the Nile caused by the construction of the Aswan dam, our research employs a novel approach, combining remote sensing data analysis, literature review, fieldwork, and multiple high-specification materials analyses, to assess the impact of these changes on the temples in Philae. The new data permit the identification of the most at-risk areas and inform the long-term monitoring and conservation of Philae. Our approach enhances understanding of the causes and effects of building material decay and underscores the urgent need for conservation strategies to mitigate ongoing water-induced deterioration. The research highlights the impact of human-induced hydrological changes, offering a case study that informs future climate change effects. It is clear that tough decisions will be required for the long term heritage conservation of the Philae temples in the face of modern infrastructural developments and climate change, and that cultural heritage management guidelines before and after dam construction is urgently required. The issues identified, are not unique to the Philae Temples so the results and recommendations are relevant to other World Heritage sites that are currently facing similar environmental and conservation challenges. PB Elsevier Inc. SN 1095-9238 YR 2025 FD 2025 LK http://hdl.handle.net/10498/38719 UL http://hdl.handle.net/10498/38719 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 10-may-2026