A. Oka and M. Watanabe. The post-2002 global surface warming slowdown caused by the subtropical Southern Ocean heating acceleration. Geophysical Research Letters, DOI: 10.1002/2016GL072184
The warming rate of global mean surface temperature slowed down during 1998–2012. Previous studies pointed out role of increasing ocean heat uptake during this global warming slowdown, but its mechanism remains under discussion. Our numerical simulations, in which wind stress anomaly in the equatorial Pacific is imposed from reanalysis data, suggest that subsurface warming in the equatorial Pacific took place during initial phase of the global warming slowdown (1998–2002), as previously reported. It is newly clarified that the Ekman transport from tropics to subtropics is enhanced during the later phase of the slowdown (after 2002) and enhanced subtropical Ekman downwelling causes accelerated heat storage below depth of 700 m in the subtropical Southern Ocean, leading to the post-2002 global warming slowdown. Observational data of ocean temperature also support this scenario. This study provides clear evidence that deeper parts of the Southern Ocean play a critical role in the post-2002 warming slowdown.
“NOAA publishes two US temperature data sets – raw and final. In the graph below, the raw (measured) temperature data is shown in blue, the reported (final) data is shown in red, and satellite temperatures of the troposphere over the United States since 1979 are shown in green.” click here
“We’ve been highly critical for some time of the paper in summer 2015 by Karl et al.that claimed “the pause” or hiatus went away once “properly adjusted” ocean surface temperature data was applied to the global surface temperature dataset. Virtually everyone in the climate skeptic community considers Karl et al. little more than a sleight of hand.”
“No matter, this paper published today in Nature Climate Change by Hedemann et al. not only confirms the existence of “the pause” in global temperature, but suggests a cause, saying “…the hiatus could also have been caused by internal variability in the top-of-atmosphere energy imbalance“.” click here
“It is premature to conclude that human activities–and particularly
greenhouse gas emissions that cause global warming–have already had a detectable impact on Atlantic hurricane or global tropical cyclone activity.” click here
I suspect we will see other applications of this material soon….More of this kind of innovation is needed.
“If heat is not your thing, rejoice: A thin plastic sheet may soon provide some relief from the intense summer sun. The film, made from transparent plastic embedded with tiny glass spheres, absorbs almost no visible light, yet pulls in heat from any surface it touches. Already, the new material, when combined with a mirrorlike silver film, has been shown to cool whatever it sits on by as much as 10°C. And because it can be made cheaply at high volumes, it could be used to passively cool buildings and electronics such as solar cells, which work more efficiently at lower temperatures.” click here
“Central England Temperature stations, long considered a benchmark, have been affected by land use change and urbanization.” click here
“While headlines blare “the world is coming to end,” Mr. Lindzen said, that is not happening. A “totally insignificant spike” in temperature of a tenth of a degree last year led to reports that 2016 was the “warmest year on record,” he said. He showed graphs of temperatures over centuries that he said showed fluctuations in temperature are normal.” click here