Matt Ridley’s page “The greening of the planet” lead me to the work of Professor Ranga Myneni of Boston University. A page listing his publications has a link to this 2012 paper – “Surface Urban Heat Island Across 419 Global Big Cities”. Peng et al., 2012 Surface Urban Heat Island Across 419 Global Big Cities, … Continue reading Satellites define the surface urban heat island (UHI) for 419 global cities
Just came across this concise article at the Arizona blog WryHeat – Urban heat island effect on temperatures, a tale of two cities – Authored by Jonathan DuHamel. We need more examples defining the UHI out there all the time to counter the colossal IPCC It’s to stop things like the above incident when counterfeiters … Continue reading Another classic use of basic temperature data to define UHI – this time the Phoenix AZ urban heat island
Chris Gilham has posted an item from the West Australian newspaper reporting the results of aerial thermal scans over Perth by a commercial firm Scantherma. Of course this imagery can be used to prove the existence of the urban heat island (UHI) which magically never finds its way into IPCC temperature trends. It is good … Continue reading Aerial thermal scans over Perth – 16 years after this technology was used in the USA to measure urban heat island (UHI) effects
This global study at the European Institute for Climate and Energy (EIKE) – How Natural is the Recent Centennial Warming? – is the first that jumps to mind in over two decades by a group sceptical of AGW – that applies statistical analysis to thousands of temperature station data and concludes there is a standout … Continue reading Landmark EIKE study of global temperature trends 1906-2005 using 2249 GISS stations concludes 0.17 UHI and a non-urban baseline warming only 0.41 degrees
Now that the NASA-UAH satellite temperature data extends over a clear 30 years 1979-2008, this is a timely opportunity to check again the old IPCC canard that the various global temperature datasets are in agreement. In this case I compare the Hadley Centre CRUT3 land only data 1979-2008 with the NASA MSU LT data from … Continue reading Huge Urban Heat Island UHI contamination in Hadley Centre-Jones-IPCC CRUT3 land temperature data over Eastern China
This paper by Dr Robert Balling Jr and myself examines a series of rural and small town South African temperature data and compared 30 year trends with available Jones 1994 grid box trends. We found clear evidence that warming trends were much higher in the Jones data which of course includes many large urban centres. … Continue reading 1996 paper finds UHI bias in Jones et al IPCC South African temperature trends
Brooks Hurd has sent in this set of observations of temperature changes while driving in and out of various Californian UHI’s in his Passat. Maybe some other readers could send in other data, good project for the kids to keep them occupied for a while.
A recent paper discussing long term temperature trends in China presents a graphic of century long trends including the Jones data. “ZHAO Zongci, DING Yihui, LUO Yong, and WANG Shaowu, “Recent Studies on Attributions of Climate Change in China” , Acta Meteorologica Sinica 2005, Vol 19, 389-400.” The caption refers to four trends from various … Continue reading Is massive UHI warming in China distorting Jones et al gridded T data ?
In a 2000 paper submitted to JGR-Atmospheres GISS lead authors and several other leading US experts in the field of temperature data history include two very simple diagrams which illustrate major truths about how how urban influences impact on temperature station data. They In order to avoid buying from a fraudulent online pharmacy, you should … Continue reading GISS/NASA/NOAA graphics illustrate significant UHI truths
San Juan was studied in the 1980’s by C.E Duchon who published in 1986, "Temperature Trends at San Juan, Puerto Rico, Bull.Amer.Met.Soc. 67, 1370-1377. A downloadable pdf file of this paper is available through BAMS. Click on Print Version for Duchon, Claude E. My 20th Anniversary Review of Jones et al 1986 explores how San … Continue reading San Juan Puerto Rico, EXACTLY how UHI warming can get into global gridded T trends.