Sydney enjoys 323 days under 30 degrees in our largest UHI

2022 ended up cooler than normal towards the end see Chris Gillham’s great www pages – Australian climate cooling since 2012. www.waclimate.net/australia-cooling.html And today Sydney Observatory Hill just recorded over 30 degrees – read about the significance at Weatherzone. www.weatherzone.com.au/news/sydney-ends-nearrecord-run-below-30-degrees/1050804 Sydney ends near-record run below 30 degrees 18Jan23. Quote [ Prior to today, Sydney’s last … Continue reading Sydney enjoys 323 days under 30 degrees in our largest UHI

ABC misinforms on Sydney UHI and fires

The article starts with some reasonable points about UHI in crowded new suburbs but then quoting an academic claims the BoM station sites do not reflect the UHI completely missing the fact the breezes and wind do blow and UHI affected air will move through the thermometer enclosures affecting BoM published weather observations. Then further … Continue reading ABC misinforms on Sydney UHI and fires

BoM omit UHI/etc claiming Perth hottest ever April day

Over a century of urban development must feed in to daily max and mins as would the late 20th Century change to AWS readings compared to to slower responding liquid in glass thermometers. Some old blogs — Satellites define the surface urban heat island (UHI) for 419 global cities 25Feb2013 The ever watchful Chris Gillham … Continue reading BoM omit UHI/etc claiming Perth hottest ever April day

UKMO on UHI

After UN IPCC “global warming” was birthed over 30 years ago by the Gnomes of Norwich with datasets polluted by almost every city on Planet Earth – the UKMO finds 1.7 degrees UHI warming in UK wide minimum temperatures. There is an easily downloaded 5Mb pdf linked to at Watts.

Reprising satellite images of urban heat islands UHI from USA

Geoff Sherrington has a long blog on UHI and Australian temperature data “The Climate Sciences Use Of The Urban Heat Island Effect Is Pathetic And Misleading” over at Wattsupwiththat.com A late comment by Ron Long December 21, 2018 at 3:21 am mentions “…I am totally confidant a UHI signal can be identified from satellite data.” … Continue reading Reprising satellite images of urban heat islands UHI from USA