Assessment of the food-water-energy nexus suitability of rooftops. A methodological remote sensing approach in an urban Mediterranean area

Altres ajuts: Acord transformatiu CRUE-CSICUnidad de excelencia María de Maeztu CEX2019-000940-MThis work established a framework to identify and analyze the technical feasibility of roofs for integrating urban agriculture, rainwater harvesting, and photovoltaic systems using various remote sensing. The framework was applied to a region north of Barcelona. Three levels of solar access requirements for tomatoes, leafy crops, strawberries, and microgreens were established. The case study included compact and disperse urban forms, residential and nonresidential building uses and various building typologies. It was identified that 8% of the roof area is feasible for tomato and lettuce production, and production could satisfy the 210% of average intake of tomatoes and the 21% average yearly consumption of lettuce. Rainwater harvesting systems could supply 94.26% of the water requirements for lettuce growing in an open-air system; in contrast, 53% of irrigation could be satisfied for tomato production in rooftop greenhouse systems. The results showed a potential for 80% of roof area to be used for rainwater harvesting systems, representing the average yearly water consumption of 44% of citizens for laundry, showering, toilet flushing, cleaning and irrigation uses. Finally, 50% of the roofs are suitable for photovoltaic panels, representing an average energy consumption of 18% of citizens

Vuelo con sensores remotos hiperspectrales para clasificación de cubiertas

Informe del Projecte FERTILECITYSe describe el proceso de captación de las imágenes hiperespectrales en los rangos VisNIR (400-1000 nm) y LWIR (8,5-11 μm) en el área de interés (AOI) que incluye la una parte del Valles Occidental (Badia, Barbera del Valles, Cerdanyola del Valles, Sabadell y Santa Perpetua de la Mogoda) y el proceso posterior de cálculo de radiancia, separación de temperatura y emisividad (LWIR), corrección atmosférica y clasificación de tipo de cubiertas por sus características espectrales