69 / 100

🇧🇷 Rio de Janeiro

Name: Rio de Janeiro, Brazil
Address: BR

Brazil — City Resilience Report

Moderate Resilience

Climate Stability needs attention (50/100) Strong Connectivity (80/100)

🤖

AI Analysis

Generated by google/gemma-3-12b-it:free — based on deterministic metrics above

Rio de Janeiro exhibits a moderate overall resilience score of 69/100. The city demonstrates strong connectivity and water security, but faces challenges related to climate stability and exposure.

Strengths

✓ Water Security (80/100)
✓ Connectivity (80/100)
✓ Daylight Stability (80/100)

Risks

⚠ Climate Stability (50/100)
⚠ Exposure (60/100)

Recommendations

→ Further investigate and address climate stability concerns.
→ Assess and mitigate exposure risks given unknown terrain.

AI-generated text summarizes the underlying measured signals. This is not a professional assessment.

Overview

Population: 6.75M
Elevation: —
Timezone: America/Sao_Paulo
Coordinates: -22.9064, -43.1822
Country: 🇧🇷 Brazil
Nearest Major City: Duque de Caxias (20 km)

Score Breakdown

Climate Stability Low annual temperature range = more stable

50

Water Security Based on heat + elevation proxy — not infrastructure

80

Daylight Stability Low seasonal daylight variation = more stable

80

Connectivity More cities and population nearby = better connected

80

Exposure & Terrain Moderate elevation, stable terrain = lower risk

60

Climate Profile

Summer

High —

Low —

Winter

High —

Low —

Daylight Analysis

Longest Day (Summer Solstice) 13.5h

Sunrise: 05:04 Sunset: 18:36

Shortest Day (Winter Solstice) 10.7h

Sunrise: 06:32 Sunset: 17:16

Daylight Variation: 2.8h between solstices

Connectivity

Within 50 km

20

cities

Within 100 km

44

cities

Within 200 km

83

cities

Population within 50 km: 4.59M
Population within 100 km: 6.07M
Isolation Index: Connected

Exposure & Terrain

Elevation: —
Relative Elevation: —
Nearby Avg Elevation: —
Terrain Context: Unknown

Prayer Rhythm

Summer Fasting Hours

15.0h

Fajr to Maghrib (longest day)

Winter Fasting Hours

12.1h

Fajr to Maghrib (shortest day)

Fasting Range

2.9h

Difference between seasons

Resilience Map

Map loading...

50 km 100 km 200 km

Methodology

Data Confidence: Low (3/7 signals available)

Limited data available. Treat scores as rough estimates.

Data Sources

Geographic and population data from GeoNames. Climate data from Open-Meteo historical archive (2023). Daylight and prayer times computed with SunCalc algorithms. All calculations are deterministic and reproducible.

What These Scores Measure

Scores are based on geographic and climate signals only — temperature, elevation, daylight patterns, and nearby city density. They do not account for water infrastructure, governance, economic development, or disaster preparedness. A high score means favorable natural conditions, not necessarily strong resilience in practice.

Score Formula

The overall resilience score is a weighted average of five sub-scores: Climate Stability (25%), Connectivity (25%), Exposure & Terrain (20%), Water Security (15%), and Daylight Stability (15%). Each sub-score ranges from 0 to 100.

Score Bands

High (70+) Moderate (40-69) Low (<40)

Disclaimer: This is a resilience proxy based on publicly available geographic and climatic data, not a full engineering assessment. It is intended for informational purposes only. Source attribution: GeoNames, Open-Meteo, SunCalc.