Hydro-Meteorological Landslide Inventory for Sustainable Urban Management in a Coastal Region of Brazil Pereira Hader, Paulo Rodolpho Lopes Gonçalves Horta, Isabela Taici Arroyo da Silva do Valle, Victor Irigaray Fernández, Clemente Landslide catalogue Rainfall Soil moisture Comprehensive, standardised, multi-temporal inventories of rainfall-induced landslides linked to soil moisture remain scarce, especially in tropical regions. Addressing this gap, we present a multi-source urban inventory for Brazil’s Baixada Santista region (1988–2024). A key advance is the introduction of geographical and temporal confidence classifications, which indicates precisely how each landslide’s location and occurrence date are known, thereby addressing a previously overlooked criterion in Brazil’s landslide data treatment. The inventory comprises 2534 records categorised by spatial (G1–G3) and temporal (T1–T3) confidence. Notable findings include the following: (i) confidence classifications enhance inventory reliability for research and early warning, though precise temporal data remains challenging; (ii) multi-source integration with UAV validation is key to robust inventories in urban tropical regions; (iii) soil moisture complements rainfall-based warnings, but requires local calibration for satellite-derived estimates; (iv) data gaps and biases underscore the need for standardised landslide documentation; and (v) the framework is transferable, providing a scalable model for Brazil and worldwide. Despite limitations, the inventory provides a foundation for (i) susceptibility and hazard modelling; (ii) empirical thresholds for early warning; and (iii) climate-related trend analyses. Overall, the framework offers a sustainable, practical, transferable method for worldwide and contributes to strengthening disaster information systems and early warning capacities. 2025-12-12T12:09:37Z 2025-12-12T12:09:37Z 2025-08-19 journal article Hader, P.R.P.; Horta, I.T.L.G.; da Silva do Valle, V.A.; Irigaray, C. Hydro-Meteorological Landslide Inventory for Sustainable Urban Management in a Coastal Region of Brazil. Sustainability 2025, 17, 7487. https://doi.org/10.3390/su17167487 https://hdl.handle.net/10481/108768 10.3390/su17167487 eng http://creativecommons.org/licenses/by/4.0/ open access Atribución 4.0 Internacional MDPI