Tag Archives: Urban heat island

Does your weather station get the wind? How station siting compromises temperature measurements via wind issues

Guest essay by Bob Fernley-Jones Well Melbourne (Oz) sure does, (and we are the butt of a few intercity jokes, a polite one being; we can have “four seasons all in one day”). The following graphic (source) of an extreme … Continue reading

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Posted in UHI, Weather_stations | Tagged , , , , | 22 Comments

Global Warming = Climate Change

Guest Essay by Ed Hoskins This short essay questions the actions to combat Global Warming / Climate Change from three points of view: The Temperature Context Man-made CO2 emissions 1965 -2012. The Significance and Influence of Carbon Dioxide CO2 The … Continue reading

Posted in Climate_change, Global warming | Tagged , , , , , , , | 84 Comments

Hot weather and climate change – a mountain from a molehill?

Guest essay by Steve Goreham Originally published in The Washington Times On Sunday, Death Valley temperatures reached 129oF, a new June record high for the United States, according to the National Weather Service. Temperatures at McCarran International Airport in Las … Continue reading

Posted in Climate data, heat wave, records, Weather, Weather_stations | Tagged , , , , , , | 128 Comments

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

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 , , , , , , , | 33 Comments

Berkeley Earth, Very Rural and Not

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

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

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

Waste heat – a bigger climate effect than once thought

Dr. Roy Spencer recently opined about this issue (which is different from UHI) in: Waste Heat as a Contributor to Observed Warming If we divide that by the surface area of the U.S. in meters, we get 0.33 watts per sq. … Continue reading

Posted in Energy, Waste heat | Tagged , , , , , , , , | 138 Comments

Station bias – an old problem

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

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

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

Measuring UHI on a bike produces a new paper

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

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

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

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

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

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.

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

Weekly Climate and Energy News Roundup

Brought to You by SEPP (www.SEPP.org) The Science and Environmental Policy Project ################################################### Quote of the Week: Fanaticism consists in redoubling your effort when you have forgotten your aim. – George Santayana, Life of Reason (1905) ################################################### Number of the … Continue reading

Posted in Climate News Roundup | Tagged , , , , , , | 7 Comments

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

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

The folly of blaming the Eastern U.S. heat wave on global warming

A picture is worth a thousand words:

Posted in heat wave, Weather | Tagged , , , , , , , , | 311 Comments

Impact on temperature measurement: Cities expand by area equal to France, Germany and Spain combined in less than 20 years

Dr. Roger Pielke Sr. points out on his weblog this interesting press release from IGBP (from March 2012) that we all apparently missed until now. One of the points worth noting is that there were fewer than 20 cities of … Continue reading

Posted in Land use land cover change, UHI | Tagged , , , , , | 54 Comments

The UHI’s of Texas are upon you

Joe D’Aleo suggested earlier today that I take a look at some of the data from NCDC’s web page called “US climate at a glance“. This page allows comparisons of the actual data not anomalies used in the NCDC USHCN … Continue reading

Posted in Climate data, UHI | Tagged , , , | 105 Comments

Flim Flam Flannery’s Fecklessness Foiled

UPDATE: Veteran Australian cartoonist  Pickering weighs in, see below. (h/t to Dale Stiller) There’s yet another scare coming from Australia’s Climate Commissioner Tim Flannery hot of the heels of his failed drought predictions. And who could forget Flannery’s “quote of … Continue reading

Posted in Alarmism, heat wave | Tagged , , , , , , | 60 Comments

Has the CRUTEM4 Data been fiddled with?

Guest post by Ed Thurstan Abstract It is apparent from the data that CRUTEM4 temperatures adjustments have, in part, been made with reference only to the earlier CRUTEM3 data, rather than raw temperature data. Further, the adjustments depend on the … Continue reading

Posted in Climate data | Tagged , , , , , , | 158 Comments

Trees do 8 times better in the New York City Urban Heat Island

From the The Earth Institute at Columbia University Do urban ‘heat islands’ hint at trees of future? Common oaks get a boost in New York’s Central Park City streets can be mean, but somewhere near Brooklyn, a tree grows far … Continue reading

Posted in UHI | Tagged , , , , , , , , | 76 Comments

Warming in the USHCN is mainly an artifact of adjustments

Dr. Roy Spencer proves what we have been saying for years, the USHCN (U.S. Historical Climatology Network) is a mess compounded by a bigger mess of adjustments. ============================================================== USHCN Surface Temperatures, 1973-2012: Dramatic Warming Adjustments, Noisy Trends Guest post by … Continue reading

Posted in Climate data, Weather_stations | Tagged , , , , , , | 152 Comments

Roy Spencer’s ISH population adjusted discoveries

Readers recall that I carried a guest post from Dr. Roy Spencer on what he learned from analysing the CRUTem3 data: Spencer shows compelling evidence of UHI in CRUTem3 data. Now he has turned his attention to what I consider … Continue reading

Posted in Climate data | Tagged , , , , , , , | 33 Comments

An update on my Climate Reference Network visualization project

Readers may recall that when Peter Gleick first sent out the stolen Heartland board documents and the fake document to give the story “legs”, there was a mention in there of a project that I asked Heartland to help me … Continue reading

Posted in Climate data, Fakegate, GHCN, Michael E. Mann, NASA GISS, NOAA, Weather_stations | Tagged , , , , , , , , | 93 Comments

I’m not waiting by the phone for the Nobel committee to call

I was rather surprised to see this interview in Physics World with Dr. Richard Muller (h/t to Bishop Hill) with this praise. “If Watts hadn’t done his work, we would not have reliable data today. The fact that he did … Continue reading

Posted in Uncategorized | Tagged , , , , , | 81 Comments

Spencer shows compelling evidence of UHI in CRUTem3 data

McKitrick & Michaels Were Right: More Evidence of Spurious Warming in the IPCC Surface Temperature Dataset Guest post by Roy W. Spencer, Ph. D. The supposed gold standard in surface temperature data is that produced by Univ. of East Anglia, … Continue reading

Posted in Uncategorized | Tagged , , , , , , , | 193 Comments

City UHI makes spring bloom earlier

From the University of Maryland Center for Environmental Science, somebody finally gets it. We’ve changed our local climates significantly, and the plants have figured this out long ago. Mid-Atlantic suburbs can expect an early spring thanks to the heat of … Continue reading

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

New paper and stunning video from the Space Station – UHI much?

Professor Ross McKitrick has just released a new paper on UHI, after reading it, it reminds me of this video from the space station. Weather stations exist in the points of light that define humanity at night, even in rural … Continue reading

Posted in UHI | Tagged , , , , , , , | 69 Comments

UHI in South Korea – responsible for over half of the warming

This new study published in  the Journal of Atmospheric Environment quantifies the different components of warming there, with UHI making up over half of the total warming: On average, the total temperature increase over South Korea was about 1.37 °C; … Continue reading

Posted in Climate data, UHI | Tagged , , , , , , , | 73 Comments

Why BEST Will Not Settle the Climate Debate

By S. Fred Singer (first published in American Thinker) Global warming has re-entered public consciousness in recent days, partly because of the buzz surrounding the release of warming results from the Berkeley Earth Surface Temperature (BEST) project. The reaction of … Continue reading

Posted in Berkeley Earth Surface Temperature | Tagged , , , , , , | 142 Comments

A Considered Critique of Berkeley Temperature Series

Guest post by Jeff Id I will leave this alone for another week or two while I wait for a reply to my emails to the BEST group, but there are three primary problems with the Berkeley temperature trends which … Continue reading

Posted in Berkeley Earth Surface Temperature | Tagged , , | 145 Comments