Daily Caller reports that Congress will be investigating US data tampering by NCDC and NASA
Are government climate agencies tampering with climate data to show warming? Some Republicans think so. That’s what California Republican Rep. Dana Rohrabacher says to expect at congressional hearings on climate data tampering.
For years, those skeptical of man-made global warming have argued that government agencies are altering raw temperature data to create a warming trend. Allegations of tampering have increased as satellite temperature readings show much less warming than land and ocean-based weather stations show.
Science blogger Steven Goddard (a pseudonym) has been a major critic of NASA’s and NOAA’s temperature measurements. Goddard points out that NOAA’s National Climatic Data Center makes the present look warmer by artificially cooling past temperatures to show a warming trend.
“NCDC pulls every trick in the book to turn the US cooling trend into warming. The raw data shows cooling since the 1920s,” Goddard told The Daily Caller News Foundation in an interview last month.
“NCDC does a hockey stick of adjustments to reverse the trend,” Goddard said. “This includes cooling the past for ‘time of observation bias’ infilling missing rural data with urban temperatures, and doing almost nothing to compensate for urban heat island effects.”
NOAA does make temperature adjustments, but it argues such adjustments are necessary to remove “artificial biases” in surface temperature data. The biggest adjustment made by NCDC scientists is cooling past data to take into account the fact that there was a big shift from taking temperature readings in the afternoon to the morning.
TOBS is actually only a small portion of the Final minus Raw adjustments, and is not due to the time when they “take the temperature.” That is misdirection by NCDC intended to confuse people. It is based on the time when the thermometer is reset. Min/max thermometers record the highest and lowest temperatures since the last time they were reset.
“We get a lot of people questioning our data adjustments,” Thomas Peterson, NCDC’s principal scientist, told TheDCNF. There was an “artificial cool bias in the data,” Peterson said.
UHI makes an artificial cool bias? These people should be stand up comedians.
If the Republicans understand and focus on the low hanging fruit, this is a slam dunk. There is overwhelming evidence that the US temperature adjustments are completely bogus. They need to stay away from the global temperature data and avoid discussions of individual stations. Those mistakes would take them down a rat hole which Tom Karl has buried them in the past.