---
title: Canadian Weather Radar Analyzer
emoji: 🌦️
colorFrom: blue
colorTo: green
sdk: gradio
sdk_version: 5.47.2
app_file: app.py
pinned: false
license: cc-by-4.0
short_description: Pixel-level analysis of Canadian radar data
---

# 🇨🇦 Canadian Weather Radar Analyzer

A precise pixel-level analysis tool for Canadian weather radar data with dBZ reflectivity mapping.

## Features

- **Pixel-Perfect Analysis**: Analyzes every pixel for precise dBZ reflectivity values
- **Color Mapping**: Uses official Canadian radar color scale reference
- **Region Detection**: Groups same-intensity pixels into rectangular regions
- **Real-time Data**: Fetches fresh radar data from ECCC MSC GeoMet every 10 minutes
- **Quantitative Results**: Provides pixel counts, coverage statistics, and intensity breakdowns
- **Interactive Map**: Displays analyzed radar overlaid on Canada map

## How It Works

1. **Fetches** current Canadian radar data from Environment and Climate Change Canada (ECCC)
2. **Analyzes** each pixel using the official 14-color dBZ scale as reference
3. **Identifies** color blocks and maps them to specific dBZ reflectivity values
4. **Groups** pixels with the same color into rectangular regions
5. **Annotates** the image with dBZ values for each region
6. **Displays** results on an interactive map interface

## Technical Details

- **Data Source**: ECCC MSC GeoMet WMS service
- **Radar Layer**: RADAR_1KM_RRAI (1km resolution rain radar)
- **Color Analysis**: Precise RGB color matching with official dBZ scale
- **Coverage**: Full Canada (42°N to 84°N, -142°W to -52°W)
- **Resolution**: 800x600 pixel analysis grid
- **Update Frequency**: Real-time data updated every 10 minutes

## Usage

1. Click "🔍 Analyze Current Radar" to fetch and analyze the latest radar data
2. View detailed analysis results including pixel counts and intensity levels
3. Examine the annotated radar image with dBZ values labeled on regions
4. Use "📡 Show Live Radar" to view the raw radar overlay without analysis

## Data Attribution

Weather radar data provided by Environment and Climate Change Canada (ECCC) under the [Open Government License](https://eccc-msc.github.io/open-data/licence/readme_en/)