Traffic's Lingering Heat: Cities Cook Under Car Exhaust

New research shows that heat from car engines and roads significantly raises city temperatures, affecting indoor and outdoor spaces. This adds to health risks.

#UrbanHeatIsland, #TrafficHeat, #CityTemperatures, #ClimateAdaptation, #TransportImpact

https://newsletter.tf/car-exhaust-heat-makes-cities-hotter-study/

Cities are getting hotter not just from the sun, but from cars. This new study shows traffic heat is a big reason why.

#UrbanHeatIsland, #TrafficHeat, #CityTemperatures, #ClimateAdaptation, #TransportImpact
https://newsletter.tf/car-exhaust-heat-makes-cities-hotter-study/

🏡 Here is the data analysis for Calgary, Summer 2025. This chart shows the relationship between vegetation density (NDVI) and Land Surface Temperature (LST).

🔥 The data reveals a critical "tipping point": vegetation only starts effectively cooling the environment once it reaches a specific density threshold. Below this threshold (the left side of the curve), green spaces stay just as hot as the surrounding concrete.
Sparse or isolated trees don't act as air conditioners—they "burn" in the urban furnace right along with us.

❗ What does this mean for Calgary? Simply planting a few scattered trees isn't enough. To actually move the needle on temperature, we need dense, healthy green belts. Otherwise, it’s just a waste of water and resources.

🔗 Link to the research: https://www.datastory.org.ua/calgarys-summer-heat-a-2025-satellite-perspective/

#Calgary #UrbanHeatIsland #NDVI #ClimateChange #UrbanPlanning #DataScience #Environment #YYC #BigData #ScienceMatters #GreennessOfCalgary #ClimateOfCalgary #rstats #RemoteSensing #OpenScience

To distinguish between "normal" and anomalous surface temperatures in Calgary in 2025, I applied Tukey’s method. The statistical distribution shows a negative skewness (coefficient ≈−0.59).

This highlights a critical phenomenon: the vast majority of the urban area is densely clustered in the warmer temperature range. In contrast, cool refuges (the rivers, reservoir, and dense parks) are statistically scarce, forming a long "tail" on the left side of the plot. In essence, Calgary’s baseline is shifted toward higher temperatures, making Urban Cool Islands a rare and vital resource.

I would like to remind my readers and followers that I am currently preparing a comprehensive article based on these research results. In it, I will explore the ecological and geochemical implications of this thermal distribution. Stay tuned for further updates!

#YYC #Calgary #ClimateResilience #UrbanHeatIsland #DataAnalytics #RemoteSensing #Landsat #OpenData #CitizenScience #LST #ClimateOfCalgary #Landsat #Rstats

One more quick byproduct of my MDEM development: a bivariate map integrating volumetric structural data (SAR) with surface temperature (LST). This approach identifies the exceptionally intensive dissipative role of volumetric vegetation structure (trees and tall shrubs). By accounting for these high-performance cooling elements, we can better understand how they supplement traditional landscaping to enhance the city's overall thermal resilience.

#UrbanHeatIsland #EnvironmentalScience #DataScience #Calgary #YYC #Sustainability #RemoteSensing #GIS #MDEM #GreennessOfCalgary #CalgaryMDEM #RStats #UrbanPlanning #EarthObservation #OpenScience #SpatialDataScience #SpatialData

Just a byproduct of my current research... 😉
Investigating the environmental patterns of Calgary. Sometimes the most telling insights emerge while working on something even bigger.

UPD: The total raw dataset consists of 242,376,352 individual pixels!

#UrbanHeatIsland #EnvironmentalScience #DataScience #Calgary #Sustainability #RemoteSensing #GIS #MDEM #GreennessOfCalgary #CalgaryMDEM #RStats

Saturday Data Dive: Mapping Calgary’s Thermal Fingerprint 🛰️📊

Spent some quality time with GEE, R and Landsat-8/9 data today.

I’ve just finished processing a Median Land Surface Temperature (LST) model for Calgary, covering the entire Summer of 2025. This isn't just a single-day snapshot—it’s a robust composite of many satellite scenes, filtered to show the true intra-urban thermal zones.

Quick Takeaways:
🔹 Surface temperature in some busines area and "heat traps" peaked at over 51.3°C.
🔹 The contrast between our "Cool Islands" and "Extreme Heat Zones" is striking.
🔹 This automated workflow in R allows for a granular look at urban climate resilience that standard reports often miss.

I’m currently finalizing a full breakdown and a community-by-community analysis.
Stay tuned—the detailed article is coming soon!

#Calgary #DataScience #UrbanHeatIsland #RemoteSensing #ClimateResilience #Landsat #RStats #GIS #Sustainability #GEE #EnvironmentalData #Summer2025 #YYC #GreennessOfCalgary #Alberta #Canada

🏙️ The Hellish Trade Zones
(Ukrainian: “Торговельні пекельні зони”)

An older piece from 2017 — but still relevant today.
Using Landsat-8 thermal imagery, I explored how urban heat islands form in large commercial and industrial areas completely devoid of vegetation.

These “hellish trade zones” show surface temperatures exceeding 45–50 °C, while nearby shelterbelts and green spaces remain much cooler.
The visual storytelling approach — combining satellite data, maps, and simple explanations — helped raise public awareness about urban greening and environmental health in my city.

📍 Location: Kryvyi Rih, Ukraine
🛰️ Data: Landsat-8 (July 15, 2016), thermal band 10 + NDVI
🔗 More: https://www.datastory.org.ua/%d1%82%d0%be%d1%80%d0%b3%d0%be%d0%b2%d0%b5%d0%bb%d1%8c%d0%bd%d1%96-%d0%bf%d0%b5%d0%ba%d0%b5%d0%bb%d1%8c%d0%bd%d1%96-%d0%b7%d0%be%d0%bd%d0%b8/

#UrbanHeatIsland #RemoteSensing #Landsat #UrbanEcology #ClimateChange #EnvironmentalData #UrbanGreening #Geospatial #GIScience #OpenScience #DataVisualization #Ukraine #Sustainability #KryvyiRih #UrbanHealth

Lắp điện mặt trời mái nhà có làm thành phố nóng lên hay mát đi?

Một nghiên cứu mới tại thành phố Lyon (Pháp) đã hé lộ những phát hiện bất ngờ về tác động của các tấm pin quang điện (PV) đến nhiệt độ khu vực đô thị.

#ĐiệnMặtTrờiMáiNhà #NăngLượngTáiTạo #BiếnĐổiKhíHậu #ĐôThị #SolarEnergy #RooftopSolar #UrbanHeatIsland #ClimateChange #Science

https://vietnamnet.vn/dien-mat-troi-mai-nha-tac-dong-the-nao-den-nhiet-do-do-thi-2449868.html

🔥🏙️ شهرهای گرم در حال تغییرند!
در بی‌ینال ونیز ۲۰۲۵، معماران و فناوران از سراسر جهان گرد هم آمده‌اند تا با کمک هوش مصنوعی، گرمای سوزان شهرها را مهار کنند.
از پاویون آلمان تا دوقلوهای دیجیتال سنگاپور، آینده شهرهای ما در حال بازآفرینی است. 🌱💡
#بی‌ینال_ونیز #معماری_پایدار #هوش_مصنوعی #شهرهای_گرم #معماری_هوشمند #پایداری #UrbanHeatIsland #VeniceBiennale2025 #SustainableArchitecture

https://dekorator.ir/biennale-venice-2025-ai-hot-cities/?utm_source=mastodon&utm_medium=jetpack_social