Urban heat, material stocks, neighbourhood care and the experience of walking. Explore the research, maps and tools behind my practice. Each case explains the question, my contribution, what exists and its limits.
Four substantial studies connecting environmental observations, urban systems and decisions. Published work sits alongside the ongoing heat-model re-audit.
Six-city urban-heat research combining satellite observations, 3D city models and street-level evidence. Model validation is being rebuilt.
Amsterdam study-area detail. Six cities in the case.
Six study areas, voxelised using VoxCity. Figure: Gerardo Ezequiel Martín Carreño. Declared inputs: EUBUCCO, © OpenStreetMap contributors, FABDEM and High Resolution 1 m Global Canopy Height Maps. Derived urban form; temperature predictions and cooling estimates remain unvalidated.
A co-authored method and maps estimating material stored in buildings.
Buildings coloured by estimated total material stock, in tonnes: pale yellow lowest, dark teal highest. Apeldoorn material-stock map, 2022. Map: Gerardo Ezequiel Martín Carreño. Buildings: 3DBAG; material intensities: Sprecher and colleagues. Basemap: CARTO and OpenStreetMap contributors. Screenshot: 11 October 2026.
A spatial allocation study of connected neighbourhood areas for Barcelona’s home-care service.
Proposal: social superblocks (green), each a grouping of mobility superblocks (thin red lines), with district boundaries dashed. Legend, in Spanish: Distritos, districts; Supermanzanas sociales, social superblocks; Supermanzanas de movilidad, mobility superblocks. From Gerardo’s UPC master’s thesis, 2020, p. 29; research developed at BCNecologia, Barcelona’s urban ecology agency. Original map and legend retained.
A co-authored cartography method for nine European pilot cities, connecting local skills, materials and community networks.
A south-up atlas. A practice of observing places and questioning how they are represented.
An atlas and poster maker for turning maps south-up and questioning how the world is drawn.
Screenshot of the map tool: the same London, south at the top, with its controls around it. Orientation changes; the place does not. Basemap: Protomaps, © OpenStreetMap contributors.
A completed fractional CTO engagement. For my wider record in location intelligence and research, explore Experience.
2026, ended October · Completed engagement
Technical leadership for a community-intelligence venture that helps teams work with public neighbourhood data.
2023 · Completed course project
A map I made as a student at the 2023 MIT Senseable City Lab summer school with AMS Institute, setting air-quality readings beside Amsterdam’s buildings and street observations.
Projects I am still building are kept in a dated archive, apart from the finished cases above.