the National Oceanic and Atmospheric Administration (NOAA) recently published a study in the journal Science that made “adjustments” to global temperature data. The study was conducted in order to refute the notion that there has been any pause in global warming.
That's a lie! As always from the Right!
The study was conducted because ocean temps are now measured with buoys which are more accurate and when ships and buoys took measurements in the same locations, the ship measurements were consistently off. So a correction factor was derived from the overlapping data sets to correct for the ship measured errors.
In the past when there was a difference between ground measurements and satellite measurements, the ground measurements proved to be correct.
Oh HELL No.. This one paper went BACKWARDS from ocean buoy measurements to recreate the old method of measuring water temperature in ship's intake channels.. And Karl adjusted the BUOY data to homogenize with the artificially elevated OLDER methods..
Anyways. Only thing that matters is the hysteria is in full retreat. As witnessed by all the PREDICTED modeling over the past 20 years. Even if Karl WAS correct (and there's little chance of that) --- it would put the actual trend in the 2.5th percentile of the Modeling results.
Not quite.
Science publishes new NOAA analysis: Data show no recent slowdown in global warming.
Since the release of the IPCC report, NOAA scientists have made significant improvements in the calculation of trends and now use a global surface temperature record that includes the most recent two years of data, 2013 and 2014--the hottest year on record. The calculations also use improved versions of both sea surface temperature and land surface air temperature datasets. One of the most substantial improvements is a correction that accounts for the difference in data collected from buoys and ship-based data.
(Credit: NOAA)
Prior to the mid-1970s, ships were the predominant way to measure sea surface temperatures, and since then buoys have been used in increasing numbers. Compared to ships, buoys provide measurements of significantly greater accuracy. "In regards to sea surface temperature, scientists have shown that across the board, data collected from buoys are cooler than ship-based data," said Dr. Thomas C. Peterson, principal scientist at NOAA's National Centers for Environmental Information and one of the study's authors. "In order to accurately compare ship measurements and buoy measurements over the long-term, they need to be compatible. Scientists have developed a method to correct the difference between ship and buoy measurements, and we are using this in our trend analysis."
In addition, more detailed information has been obtained regarding each ship's observation method. This information was also used to provide improved corrections for changes in the mix of observing methods.
New analyses with these data demonstrate that incomplete spatial coverage also led to underestimates of the true global temperature change previously reported in the 2013 IPCC report. The integration of dozens of data sets has improved spatial coverage over many areas, including the Arctic, where temperatures have been rapidly increasing in recent decades. For example, the release of the
International Surface Temperature Initiative databank, integrated with NOAA's
Global Historical Climatology Network-Daily dataset and forty additional historical data sources, has more than doubled the number of weather stations available for analysis.
Lastly, the incorporation of additional years of data, 2013 and 2014, with 2014 being the warmest year on record, has had a notable impact on the temperature assessment. As stated by the IPCC, the "hiatus" period 1998-2012 is short and began with an unusually warm El Niño year. However, over the full period of record, from 1880 to present, the newly calculated warming trend is not substantially different than reported previously (0.68°C / Century (new) vs 0.65°C / Century (old)), reinforcing that the new corrections mainly have in impact in recent decades.
