Corgi_team

Where Will I Plant My Tree? (¿Dónde plantaré mi árbol?) is a decision-support tool that tells Latin American cities exactly where to plant native trees to fight extreme urban heat. In Greater Santiago, Chile, heat is a form of inequality: low-income neighborhoods reach 43 °C surface temperatures with almost no tree cover, while wealthier districts 10 miles away stay near 31 °C. Satellites can show which neighborhoods are hot, but at 30 m per pixel they cannot tell a sidewalk from an asphalt lane or a warehouse roof. The app couples Landsat 8/9 thermal data and Sentinel-2 vegetation data with Meta SAM 2.1 segmentation on 30 cm aerial imagery: • 3,400 priority heat sites across Greater Santiago's 34 municipalities • 1,724 polygons segmented with Meta SAM 2.1, split into public soil for street trees and industrial roofs for biosolar green roofs • 116 roofs with existing solar panels detected, where green roofs cost less • Native drought-resistant species (Algarrobo, Quillay, Molle, Peumo) • One-click technical reports with costs based on official Chilean benchmarks (CONAF, MINVU, ChileCompra) Built solo for the Meta Global AI Developer Hackathon 2026 (Indie track, "Build for Your World"), Oct 29 – Nov 4, 2026.