Our study of data-massaging by the U.S. government agency charged with collecting temperature information raises uncomfortable questions.
We have been repeatedly told (perhaps "lectured" is a better word) the past twenty years that global warming is occurring. With Climategate and subsequent confessions and bailouts by scientists at the CRU, Penn State, Arizona State, IPCC, et al., we are learning that little to none of the factual content in their "peer reviewed" articles is true. The Medieval Warming Period did occur, and it was warmer than currently; the oceans are not going to flood the plains; and the Arctic Ocean may not be turning into a summer water park. Of course, the mainstream media, especially in the United States, has reported little of this news, and President Obama appears not to be well-informed. But now the global warming story grows more interesting because here in America, we may have our own little "gate." I will call it ATG, for "American Temperaturegate."
NOAA's National Climatic Data Center (NCDC) informs us, based on their "Adjusted Data" for the period from the last decade of the 19th century to 2006, that the temperature for the contiguous U.S. has increased at a rate of 0.69oC/century. Click here
. NCDC arrives at this conclusion by massaging raw data from a set of meteorological stations located in the contiguous U.S. which they selected on the basis of a 2.5-degree latitude- and 3.5-degree-longitude grid. For more on this, click here
. The most-asked question, most recently by D'Aleo and Watts, is whether the NCDC's reported increase is correct. Perhaps the value is due to a dominant use (over-selection) of stations in urban locations or because of other issues, such as leaving out stations at higher altitudes for the more recent history and retaining them for the more distant past.
Here, one aspect is considered -- that of the Urban Heat Island Effect, which is tagged as UHIE.
Click source to read FULL report by Edward R. Long