Overall, in this subset, 86 % of
the stations show warming.
· Well sited rural
stations show a warming nearly three times greater after NOAA adjustment is applied.
All we really know is that more
stations show warming than cooling, and the acccuracy of those measures is questionable.
Like the late John Daly noted, rural reporting
stations show no warming trend going back 100 years.
The bad, mean and undisciplined
station shows warming, and the lovely, calm and good station shows cooling.
Mosh, «anomalous» only in the context of the twice as many
stations showing a warming trend.
So for example if
a station shows a warming trend of 7 degC / century then it will be shown as a «dark red» dot.
With how many people have complained about the effects of UHI, why would anyone think it means anything that a single, urban
station shows a warming trend not present in the trend of its area?
Placemarks for
stations showing warming are yellow, blue for cooling.
Not exact matches
The locations of weather
stations, changes in instruments, the siting of weather
stations in
warmer urban areas, changes in land cover and other issues have all been cited as issues affecting the temperature trends often used to
show that our planet is in fact
warming.
In our preliminary analysis of these
stations, we found a
warming trend that is
shown in the figure.
The Berkeley Earth analysis
shows that over the past 50 years the poor
stations in the U.S. network do not
show greater
warming than do the good
stations.
As the paper says, if its conclusion is accepted, then it is necessary to «unravel the mystery of how a global temperature time series created partly from urban in situ
stations could
show no contamination from urban
warming».
Several
stations in the North Slope of Alaska and the Brooks Range had record or near - record high temperatures in the permafrost at depths of about 65 feet,
showing how much the
warming is affecting the Arctic environment.
Classic greenhouse
warming with upper latitude amplification is
shown in temperature 100 - 110 year plots for climate
stations in the northern Great Plains, Upper Midwest and Alaska.
For an example, once a week, the Idso's «CO2 Science» web site would cherry pick a single
station in the US Historical Climatology Network that happened to
show cooling, to «prove that there has been no global
warming in the past 70 years.»
The weather
stations used «before the pause»
showed definite
warming, then these
stations showed less
warming.
And shouldn't it have helped reduce the element of surprise that a National Academy of Sciences study already concluded that the
warming seen in the surface
station record was «undoubtedly real,» that Menne et al
showed that highly touted
station siting issues did not in fact compromise the record, that the satellite record agrees with the surface record in every important respect (see Fig. 7 here), and that numerous independent studies (many of them by amateurs) also confirmed the
warming trend?
«Over the past 50 years the poor
stations in the US network do not
show greater
warming than do the good
stations,» his notes say.
Why satellite measurements
show much lower
warming than earth
stations, especially in western Europe?
As the paper says, if its conclusion is accepted, then it is necessary to «unravel the mystery of how a global temperature time series created partly from urban in situ
stations could
show no contamination from urban
warming».
Although globally averaged annual temperatures
warmed about 1 deg F since the early 1900s (viewed as rapid by paleoclimatologists and geologists), regional climate
station annual temperatures in northern Minnesota
show warming by several degrees F since the early 1900s.
So it is not surprising that his website only ever features those
stations that confirm his beliefs (inbetween the reports of cold weather) and his «preliminary report» only features photos of
stations that are (a) poorly - sited with a
warming bias or (b) well - sited and
show a cooling trend.
If I point my browser at the
warmest points on the Arctic rim (according to both your graphs), the nearest
stations with records that
show the 1930s all
show the 1930s as being
warmer than the 1990s.
In addition, local inhomogeneities are variable; some urban
stations show little or no
warming, or even a slight cooling, relative to rural neighbors.
For an example, once a week, the Idso's «CO2 Science» web site would cherry pick a single
station in the US Historical Climatology Network that happened to
show cooling, to «prove that there has been no global
warming in the past 70 years.»
In particular, the characters visit Punta Arenas (at the tip of South America), where (very pleasingly to my host institution) they have the GISTEMP
station record posted on the wall which
shows a long - term cooling trend (although slight
warming since the 1970's).
If only enough problems can be found, global
warming will go away «David Stockwell: if removing the contaminated
stations reduced the 20th century increase to the point there was no increase in temperature, how could that possibly improve model fit, when the models
show an increase of 0.5 deg?»
How many times have we seen someone select two
stations «randomly» and see that they don't
show significant
warming over a limited range of time and conclude there's no climate change?
The Idsos would ignore both old and recent data, corrections, and the overwhelming majority of USHCN
stations which
showed warming trends.
In fact, surface
station measurements
show a significant
warming, while MSU measurements do not.
I was a guest on the Michele Tafoya
Show on Twin Cites News Talk
station, WCCO 830 AM on Tuesday to discuss global
warming and our website, GlobalClimateScam.com.
Somehow all the
station changes
show a large bias towards moving from
warmer to colder locations thus requiring either an upward adjustment to data prior to the move or downward adjustment to data before the move.
Unfortunately, it
shows no
warming over the past ten years or so, so NCDC sticks to their analysis of less suitable
stations because they can find ways to adjust it to provide the required
warming.
And as far as the Antarctic is concerned: There hasn't been no significant
warming since 1955 (the 7
station series from New Zealand
show the same and for what it's worth I don't trust the BOM temperature - series)
Figure B
shows the scenario for the change in annual mean temperature per 1 C global
warming using this method for 248 meteorological
stations.
Stockholm 2011: designer Mia Gammelgaard of Copenhagen
showed this wooden chair with leg
warmers for Swedish firm Blå
Station at Stockholm Furniture Fair last week.
A The Hadcrut 4 figures that
show a «pause» in
warming lasting nearly 16 years are drawn from more than 3,000 measuring
stations on land and at sea.
Plus, they found, data from only the 70
stations that SurfaceStations.org classified as «good» or better
showed warming over time that was similar to the overall data NOAA had been using.
However, again, the urban
stations also
show an underlying
warming trend, which substantially changes the context of the trends.
After raising concerns about the reliability of the monitoring
stations that the National Oceanic and Atmospheric Administration (NOAA) relies on to measure the U.S. surface - temperature data used to
show warming over time, Watts began to investigate.
Surely, there's got to be some other global
warming indicator that
shows a long - term global
warming trend...» Remarkably, aside from the weather
station record estimates, almost all of the so - called «global
warming indicators» are short - term estimates...
If you only use linear trends for analysing the temperature record for Valentia Observatory, you might mistakenly conclude, «it
shows a «
warming trend», and it's rural, so even the rural
stations show «unusual global
warming»».
The late John Daly
showed that there was no evidence for any global
warming at over 200 rural and remote weather
stations upto ca. 2001.
It is not known if the BoM's testing paramaters which establish a 1972 metrication
warming anomaly around.1 C in Australia are applicable to New Zealand's temperature records, which
show similar whole degree rounding patterns caused by weather
station observers not recording fractions in the Fahrenheit era and software communication errors in the Celsius era.
A small navel air
station 15 miles away which wasn't in this heat bubble
shows no
warming during this period.
The chart below
shows how Perth Airport was consistently
warmer until 2011, since when the difference between maxima at the two
stations has become more stable:
Thousands of weather
stations data around the world
show a
warming Earth, I don't care what it's doing far above my head.
If the rest of the US states have as much adjustment, GISS won't need to homogenize the
station data to
show «unprecedented
warming.»
Stations ranked as «poor» in a survey by Anthony Watts and his team of the most important temperature recording
stations in the U.S., (known as the USHCN — the US Historical Climatology Network),
showed the same pattern of global
warming as
stations ranked «OK.»