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.
I guess we don’t hold our breath until they apply these results to HADCRUT4 and all their other global warming series…
BTW I am not sure I believe them anyway. Nighttime temperatures in big cities seem to me to be considerably more than just 1-2 degrees warmer than in the country. Didn’t someone find UHI higher than that in London around 1800?
Seriously, this looks and smells soooo badly:
www.news.com.au/technology/environment/climate-change/australia-has-just-sweltered-through-its-hottest-march-on-record/news-story/6914353de21e616bcd547c24a1291d99
It would indeed be fascinating to see this UKMO project methodology expanded eventually global.
The UHI must be the most proven & studied phenomena yet for the IPCC the most ignored.
Note that my National Night-Time Hotspot has charged back in Jan – Feb and Mar minimum anomaly maps. Showing ever present errors in BoM data.
Where did this nonsense story on Perth Now come from? WA records hottest month on record in March, with average temperature rising to 29C 2Apr19
It claims the Perth average minimum temperature for March 2019 was 22C when the BoM website states it was a nothing special 17.3C. The article claims that 29C is an extraordinary high average maximum, when in fact the long term mean is 29.6C.
First the PerthNow article is talking WA temperatures not Perth. The WA max for March is shown in this chart which shows 1980 was hotter – but remember these are ACORN temperatures where the past is adjusted cooler. Scribeworks and Ken Stewart have analyses of the new ACORN 2 highlighting how ridiculous many of the adjustments are.
Wazz this may interest you chiefio.wordpress.com/2019/03/17/australia-oz-choice-seasons-by-month/
and also this www.drroyspencer.com/2019/04/australia-surface-temperatures-compared-to-uah-satellite-data-over-the-last-40-years/