Category Archives: UHI

Heat-related deaths in Manhattan projected to rise – except reality shows them going down in the USA

Posted on May 20, 2013 by

Only one problem, an NIH study shows that thanks to air conditioning and other factors, including better education programs about heat waves, heat related deaths are actually going down in the USA. From Davis et al, Changing Heat-Related Mortality in … Continue reading →

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Posted in Economy-health, heat wave, UHI | Tagged , , , | 14 Comments

The Chinese demonstrate that UHI has a real and essential effect on regional climate change

Posted on May 13, 2013 by

Study finds that urbanization has considerable influence on the regional climate change, they even blame proximity to air-conditioning as a factor. Press release from Science China Press (full paper follows) Urbanization and surface warming in eastern China A recent study … Continue reading →

Posted in Land use land cover change, UHI | Tagged , , , , , , , | 32 Comments

Climate Craziness of the week – with the physical signature of UHI staring them right in the face, Mann & Borenstein go with their ‘gut’ instincts

Posted on April 12, 2013 by

Some people wonder if Michael Mann is simply an activist masquerading as a scientist, this lends credence to that idea. I wonder if Dr. Mann has ever visited weather stations in China to understand what is going on there? I … Continue reading →

Posted in Climate Craziness of the Week, UHI | Tagged , , , , | 85 Comments

Berkeley Earth, Very Rural and Not

Posted on April 4, 2013 by

Jet exhaust as climate forcing Guest Post by Willis Eschenbach The good folks over at the Berkeley Earth Surface Temperature project have published their paper about urban heat islands. It’s called “Influence of Urban Heating on the Global Temperature Land … Continue reading →

Posted in Land use land cover change, Surfacestations paper, UHI | Tagged , , , , , , , | 257 Comments

California to quantify UHI statewide

Posted on March 7, 2013 by

From the if we can quantify it we’ll figure out a way to tax it department comes this short press release (h/t Kakatoa) The Governor’s Office of Planning and Research is joining with Cal/EPA and several other State agencies on … Continue reading →

Posted in UHI | Tagged , , | 69 Comments

Preliminary comments on Hausfather et al 2013

Posted on February 13, 2013 by

There’s a new paper out today, highlighted at RealClimate by Hausfather et al titled Quantifying the Effect of Urbanization on U.S. Historical Climatology Network Temperature Records and published (in press) in JGR Atmospheres. I recommend everyone go have a look … Continue reading →

Posted in Climate data, UHI, Watts et al 2012 | Tagged , , , | 106 Comments

Station bias – an old problem

Posted on January 21, 2013 by

A number of readers have commented about the story from Sunday about NOAA’s experiment at Oak Ridge Laboratory to determine the warming effects of siting suggesting that the experiment was long overdue. many found it surprising that it has taken … Continue reading →

Posted in Surfacestations paper, UHI | Tagged , , , , , | 41 Comments

Via experiment, NOAA establishes a fact about station siting: ‘nighttime temperatures are indeed higher closer to the laboratory’

Posted on January 20, 2013 by

WUWT readers may recall that I wrote about this experiment being performed at Oak Ridge national Laboratory to test the issues related to station siting that I have long written about. NOAA’s ‘Janus moment’ – while claiming ‘The American public … Continue reading →

Posted in Surfacestations paper, UHI | Tagged , , | 182 Comments

Unique paper looks for natural factors in station data–shows significant probabilities of natural signal

Posted on January 10, 2013 by

Since we have been paying a lot of attention to the surface record given the recent revelations surrounding the adjustments to data and NOAA’s release of the State of the Climate  Report claiming that the USA had the hottest year … Continue reading →

Posted in Climate data, UHI | Tagged , , , , , , | 51 Comments

Earth at night – wildfires in Australia

Posted on December 8, 2012 by

From NASA – Wildfires Light Up Western Australia (nothing unusual here, it happens every year) A stunning video of the Earth at night follows. Careful observers of the new “Black Marble” images of Earth at night released this week by … Continue reading →

Posted in Earth, Energy, UHI | Tagged , , , | 60 Comments

The heat is on: the UK SurfaceStations effort

Posted on October 10, 2012 by

They say “imitation is the sincerest form of flattery”, so color me flattered. I’ve been remiss in writing about this effort by Roger Tattersall (aka Tallbloke) and his colleague Tim Channon, but a tip from WUWT reader David Schofield brought … Continue reading →

Posted in GHCN, UHI, Weather_stations | Tagged , , , | 102 Comments

Measuring UHI on a bike produces a new paper

Posted on October 10, 2012 by

While NCDC’s Dr. Thomas Peterson tries to ignore UHI, from Hans Von Storch at Die Klimazwiebel (h/t to Jos de Laat) we learn that many other people are actively measuring it. WUWT reader may remember my “do it yourself UHI … Continue reading →

Posted in UHI | Tagged , , , , , | 58 Comments

PBS airs special on green rooftops, cites NCDC’s Thomas Peterson, who fumbles the UHI ball

Posted on October 10, 2012 by

From PBS last night: From Rooftop to Alleyway, Chicago Fights Extreme Urban Heat With Greener Ideas One of Chicago’s most beautiful and hidden gardens is located on top of City Hall, part of an effort to ‘green’ roofs in order … Continue reading →

Posted in UHI | Tagged , , , , , , | 48 Comments

A new paper showing how UHI and energy consumption are linked to long-term temperature change in China

Posted on October 2, 2012 by

Dr. Roger Pielke Sr. highlighted this major new paper in JGR yesterday, I consider it important as it relates to the works I’m doing on station siting. The key points of the paper are supportive of what I’ve  been saying … Continue reading →

Posted in GHCN, Temperature, UHI, Watts et al 2012, Weather_stations | Tagged , , , , | 33 Comments

Law of unintended consequences bites the ‘white roof UHI solution’ – causes reduced rainfall

Posted on September 7, 2012 by

From Arizona State University Researchers emphasize evaluation of tradeoffs in battling urban heat island Urbanization will increase average temperatures in Arizona’s Sun Corridor and white roofs can combat that, but not without consequences for the region’s hydroclimate TEMPE, Ariz. – … Continue reading →

Posted in UHI | Tagged , , , | 90 Comments

Recent paper demonstrates relationship between temperature and population density in the UHI of New Delhi

Posted on August 31, 2012 by

This gives credence to Dr. Roy Spencer’s population adjusted ISH surface temperature data for the USA Impact of population density on the surface temperature and micro-climate of Delhi Javed Mallick1 and Atiqur Rahman2,* 1Department of Civil Engineering, King Khalid University, … Continue reading →

Posted in Climate data, UHI | Tagged , , , , | 50 Comments

Never before published paper on UHI and siting – Goodridge 1987

Posted on August 16, 2012 by

Plus answers to yesterday’s Fun puzzle: Name these official stations. Given that California Governor Jerry Brown has recently setup a website at the governor’s office basically telling skeptics to “shut up” I thought this would be a good time to … Continue reading →

Posted in Climate data, ENSO, James Hansen, UHI, Weather_stations | Tagged , , , , , , , | 104 Comments

Little Ice Age Thermometers- Historic variations in temperatures Part 3 -BEST confirms extended period of warming.

Posted on August 14, 2012 by

Guest post by Tony Brown This short paper is a preliminary examination of BEST data to 1753, as compared to the Central England Temperature Record (CET) to 1660 (instrumental record) and 1538 (Extended by Tony Brown using thousands of contemporary … Continue reading →

Posted in Berkeley Earth Surface Temperature, Climate data, UHI | Tagged , , , , , , | 68 Comments

Important New Paper on the Nocturnal Boundary Layer, Mixing, and Radiative Forcing as it applies to GHCN weather stations

Posted on July 12, 2012 by

From Dr. Roger Pielke Sr. comes word of an important new paper that shows how the air near the ground (boundary layer) is highly affected by sensitive nighttime dynamics, which show up in the Tmin of weather station data (GHCN … Continue reading →

Posted in GHCN, Surfacestations paper, UHI, Weather_stations | Tagged , , , , , , , , | 65 Comments

More modeling madness: increased temperature ‘may’ cause more violent thunderstorms – but other studies show what they missed

Posted on July 11, 2012 by

From Tel Aviv University, another science press release with “could and may” qualifiers:  Climate Change May Lead to Fewer — But More Violent — Thunderstorms Number of flash floods and forest fires could increase with temperature, says TAU researcher Researchers … Continue reading →

Posted in ENSO, Land use land cover change, Modeling, modification, thunderstorms, UHI, Weather | Tagged , , , , , | 62 Comments