…A Few Model-Data Comparisons of Greenland Surface Air Temperatures
Mass losses from Greenland’s ice sheets have been one of the focuses of alarmists for decades. In fact, last week, U.S. Secretary of State John Kerry visited Greenland on a (boreal) summertime tour of parts of Greenland in an apparent political publicity stunt. See The Washington Post article John Kerry just visited the most stunning example of our changing climate by Chris Mooney. It’s chock full of alarmist babble. Great for a laugh. Why a laugh? Read on.
One of the principal contributing factors to the losses of Greenland’s ice sheets is surface temperature. So we’ll focus this model-data comparison on the surface air temperatures of Greenland. And speculation from the climate science community about Greenland surface temperatures and their impacts on ice sheet mass loss there and the contribution of those losses to sea level rise are based on climate models. As you’ll see, the consensus of the climate models used by the IPCC show the models cannot simulate Greenland’s surface temperatures over any timeframe from 1861 to present. Why then do people believe the model-based speculations about the future of Greenland surface temperatures, ice sheet losses and global sea levels? Because John Kerry wasted taxpayer dollars on a fossil-fuel-consuming trip to Greenland and then tweeted about it? Continue reading
This post provides an update of the values for the three primary suppliers of global land+ocean surface temperature reconstructions—GISS through May 2016 and HADCRUT4 and NCEI (formerly NCDC) through April 2016—and of the two suppliers of satellite-based lower troposphere temperature composites (RSS and UAH) through May 2016. It also includes a model-data comparison. Continue reading
This is the second month with the new format. I’ve replaced the smoothed curve with a horizontal line that represents the Current Value.
MONTHLY SEA SURFACE TEMPERATURE ANOMALY MAP
The following is a Global map of Reynolds OI.v2 Sea Surface Temperature (SST) anomalies for May 2016. It was downloaded from the KNMI Climate Explorer. The contour range was set to -2.5 to +2.5 deg C and the anomalies are referenced to the WMO-preferred period of 1981-2010.
May 2016 Sea Surface Temperature (SST) Anomalies Map
(Global SST Anomaly = +0.34 deg C)
MONTHLY GLOBAL OVERVIEW
Global Sea Surface Temperature anomalies made a downtick in May, a decrease of about -0.02 deg C. Surface temperature anomalies rose in the Northern Hemisphere, but that rise was more than countered by a decrease in the Southern Hemisphere. Last month, the ocean basins that showed warming were the North Atlantic, North Pacific and the Arctic and Southern Oceans. The El Niño peaked in November, and the global sea surface temperature response to the El Niño peaked as well, about 2 months later in January 2016. Continue reading
This post provides an update of many of the ENSO-related variables we presented as part of the 2014-15 El Niño Series and for the 2015/16 El Niño series.
In the recent post Say Good-Bye to the 2015/16 El Niño, we illustrated and discussed how the weekly sea surface temperature anomalies of the NINO3.4 region of the equatorial Pacific had dropped below NOAA’s +0.5 deg C threshold for El Niño conditions for the week centered on May 18th. Weekly sea surface temperature anomalies for that region are now below zero. Continue reading
Plus a Few Freebees at the End of the Post
The sea surface temperature anomalies of the NINO3.4 region of the equatorial Pacific are bordered by the coordinates of 5S-5N, 170W-120W. They are used by NOAA and other meteorological agencies to define when an El Niño event is taking place. According to the most-recent weekly satellite-enhanced data, the temperature anomalies for that region have dropped below the +0.5 deg C threshold between El Niño and ENSO-neutral phases, the latter of which is the “normal” phase of the tropical Pacific when neither El Niño or La Niña are taking place.
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They are ebooks in .pdf format:
- On Global warming and the Illusion of Control – Part 1 presents the basics and illusions behind the hypothesis of global warming and climate change,
- Who Turned on the Heat? is a comprehensive examination of The processes and long-term global-warming aftereffects of El Niños and La Niñas, which are the dominant weather events on Earth, and
- Climate Models Fail, as its title suggests is about the poor performance of climate models.
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For those not familiar with Dancing With the Stars, it’s a television dance contest that pairs professional dancers with celebrities. Bill Nye was a celebrity dancer for 2013’s Season 17. Nye was eliminated in the third round after he and his partner scored the lowest points in the first three rounds. (Also see the HuffingtonPost article here about Nye’s injury in the second round.) Nye is probably most famous for his acting role in the kids’ science program Bill Nye the Science Guy that ran from 1993 to 1998. See Bill Nye’s other acting credits on the IMDb webpage here.
No surprise there.
But there are also periods when reported shorter-term global warming and global cooling have been decreased.
This post discusses changes to a global surface temperature dataset from the Goddard Institute of Space Studies (GISS) that is based solely on land-surface air temperature data. We’re going to compare the global surface temperature anomalies from the 1987 Hansen and Lebedeff paper Global Trends of Measured Surface Air Temperature to the current version of the same dataset from GISS, their meteorological station-based data, a.k.a. “dTs”.
Because we’re discussing Hansen and Lebedeff (1987), we’ll also take a look at their analysis of the impacts of the heat island effect on land-based global surface temperature data. Continue reading
This post provides an update of the values for the three primary suppliers of global land+ocean surface temperature reconstructions—GISS through April 2016 and HADCRUT4 and NCEI (formerly NCDC) through March 2016—and of the two suppliers of satellite-based lower troposphere temperature composites (RSS and UAH) through April 2016. It also includes a model-data comparison. Continue reading
Eric Worrall’s post Making Global Warming Scarier at WattsUpWithThat included an animation of global surface temperature anomalies from Ed Hawkins of the University of Reading. [Thanks, Eric.] I’ve included the gif edition as my Animation 1, which is available from Ed Hawkins’s post Spiralling global temperatures at his blog ClimateLabBook. (The post is archived here.)
Animation 1 Continue reading