geohub zambia
# 🌍 GeoHub Zambia — Geospatial Intelligence Platform
**Version:** 9.0 | **Updated:** 2026-04-14
**Data Source:** NSDI Zambia · GRID3 2022 · CHIRPS 2020–2025
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## 🚀 Project Overview
GeoHub Zambia is a full-featured, browser-based GIS dashboard for Zambia's 116 NSDI districts across 10 provinces. It combines real satellite-derived climate data with interactive mapping, spatial analysis, and data export tools — all as a static web application.
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## ✅ Completed Features (v9.0)
### 🗺️ Map Viewer (`map.html`) — Core
- Interactive Leaflet map centred on Zambia (EPSG:4326 · WGS 84)
- 116 NSDI GRID3 districts with circle markers, popups, info panels
- Province labelling, water bodies, mining sites, city capitals
- Four basemaps: Street (OSM), Satellite (Esri), Terrain (OpenTopo), Dark (CartoDB)
- Coordinate systems: DD, DMS, UTM, MGRS — live display + converter
- Right-click context menu, bookmarks panel, coordinate hub
- Population heatmap overlay, province border layer, coordinate grid
- Scale bar, north arrow, zoom/reset controls
### 🎨 Layer Control & Dynamic Legends
- **9 thematic overlay layers** with individual opacity sliders:
- 🏔️ DEM / Elevation (simulated from district centroids)
- 🌿 LULC (FAO LCCS national classes)
- 🌡️ LST Temperature (province monthly avg 2022–2025)
- 🌧️ Rainfall 4-station baseline (CHIRPS 2023)
- 🌦️ **Rainfall 2020–2025 CHIRPS** ⭐ (real uploaded CSV data)
- 〰️ Elevation Contours (200 m interval)
- 🌊 Flood Risk Zones (elevation + proximity model)
- 🌱 NDVI Vegetation Index (simulated from forest cover)
- 🏜️ **Drought Risk Index** ⭐ (raster stats 2020–2025)
- Dynamic legend panel with gradient/class tabs per active layer
- Group headers: Environmental | Climate (Real Data) | Risk / Hazard
### 🔍 Click-to-Query & Hover Tooltips
- Hover tooltip: district name, population, density + thematic values
- Multi-tab query panel (7 tabs: District, DEM, LULC, LST Temp, Rainfall, CHIRPS, Drought, Flood, NDVI)
- Full attribute tables, progress bars …